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Comprehensive codebase and cou...
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commit cfc83a0e862a2ae363994d1f79f538c5c4fcbc49
parent a98c7a9de8617a6f8cdb0ceffeafa5b5b772e741
Author: Amit Dutta <amitdutta4255@gmail.com>
Date:   Fri, 28 Nov 2025 18:25:28 +0530

update -28112025 .\assignment\assignment01-04 _Problem Statement Added

Diffstat:

Massignment/assignment01.c | 5++++-


Massignment/assignment02.c | 6+++++-


Massignment/assignment03.c | 6+++++-


Massignment/assignment04.c | 4+++-


Mdocs/index.html | 25650+++++++++++++++++++++++++++++++++++--------------------------------------------


5 files changed, 11497 insertions(+), 14174 deletions(-)

diff --git a/assignment/assignment01.c b/assignment/assignment01.c
@@ -1,4 +1,7 @@
-/* Author: Amit Dutta, Date: 27-11-2025*/
+/* Write a C program that includes a user-defined function named isPrime with the signature 
+int isPrime(int num); The function should take an integer as a parameter and return 1 if 
+the number is prime and 0 otherwise. */
+
 #include <stdio.h>
 #include <math.h>
 
diff --git a/assignment/assignment02.c b/assignment/assignment02.c
@@ -1,4 +1,8 @@
-/* Author: Amit Dutta, Date: 27-11-2025*/
+/* Write a C program that includes a user-defined function named isArmstrong with the 
+signature int isArmstrong(int num);. An Armstrong number is a number that is equal to 
+the sum of its own digits each raised to the power of the number of digits. For example, 
+153 is an Armstrong number because 1^3 + 5^3 + 3^3 = 153 */
+
 #include <stdio.h>
 #include <math.h>
 
diff --git a/assignment/assignment03.c b/assignment/assignment03.c
@@ -1,4 +1,8 @@
-/* Author: Amit Dutta, Date: 27-11-2025*/
+/* Write a C program that includes a user-defined function named isPerfect with the signature 
+int isPerfect(int num);. A perfect number is a positive integer that is equal to the sum of 
+its proper divisors, excluding itself. For example, 28 is a perfect number because the sum 
+of its divisors (1, 2, 4, 7, 14) equals 28. */
+
 #include <stdio.h>
 
 int isPerfect(int);
diff --git a/assignment/assignment04.c b/assignment/assignment04.c
@@ -1,4 +1,6 @@
-/* Author: Amit Dutta, Date: 27-11-2025*/
+/* Write a C program that takes an integer input representing a month (1 to 12) and a year. 
+Use a switch statement to display the number of days in that month, considering leap years. */
+
 #include <stdio.h>
 
 int main()
diff --git a/docs/index.html b/docs/index.html
@@ -1,14170 +1,11480 @@
-<!DOCTYPE html>
-<html lang="en">
-  <head>
-    <meta charset="UTF-8" />
-    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-    <title>notamitgamer/bsc Repository File Index</title>
-    <script src="https://cdn.tailwindcss.com"></script>
-    <link
-      href="https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap"
-      rel="stylesheet"
-    />
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-      rel="stylesheet"
-      href="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/11.9.0/styles/github-dark.min.css"
-    />
-    <script src="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/11.9.0/highlight.min.js"></script>
-
-    <style>
-      body {
-        font-family: "Inter", sans-serif;
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-      .chevron.rotated {
-        transform: rotate(180deg);
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-      /* --- Enhanced Code Viewer Modal Styles --- */
-      #code-modal .modal-content-area {
-        /* Ensure the code viewer takes up maximum available height */
-        height: 90vh;
-        max-height: 90vh;
-      }
-      #modal-code-container {
-        /* Remove default padding from the outer container */
-        padding: 0;
-        flex-grow: 1; /* Allow the container to fill space */
-        display: flex; /* Flex context for pre element */
-      }
-      #modal-code-container pre {
-        /* Full width and height inside its container */
-        width: 100%;
-        height: 100%;
-        margin: 0;
-        padding: 1rem; /* Padding inside the code block */
-        overflow: auto;
-        /* Custom background and border to look more like a proper viewer */
-        background-color: #1e1e1e; /* Darker background for code */
-        border-radius: 0 0 0.5rem 0.5rem;
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-      /* --- End Code Viewer Modal Styles --- */
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-      /* Animation for success feedback */
-      .btn-success-pulse {
-        background-color: #10b981 !important; /* Tailwind green-500 */
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-      /* Ensure code display is readable */
-      .code-match-line {
-        background-color: #f3f4f6;
-        padding: 0.75rem;
-        border-radius: 0.5rem;
-        font-size: 0.75rem; /* text-xs */
-        font-family: monospace;
-        white-space: pre-wrap;
-        word-break: break-all;
-        box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.05);
-      }
-
-      /* Active state for search results */
-      .search-file-item.active {
-        background-color: #dbeafe; /* Blue-100 */
-        border-color: #60a5fa; /* Blue-400 */
-        box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1),
-          0 2px 4px -1px rgba(0, 0, 0, 0.06);
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-    </style>
-  </head>
-  <body class="bg-gray-100">
-    <div class="container mx-auto px-4 py-8 md:py-16">
-      <div
-        class="max-w-4xl mx-auto bg-white rounded-2xl shadow-lg overflow-hidden"
-      >
-        <div class="p-4 md:p-8">
-          <div class="text-center mb-8">
-            <h1 class="text-3xl md:text-4xl font-bold text-gray-800">
-              notamitgamer/bsc Repository Contents
-            </h1>
-            <p class="text-gray-500 mt-2 text-sm md:text-base">
-              A quick navigation guide to the files in the repository. <br />
-              <b
-                >For optimal viewing and experience, please use a desktop
-                browser.</b
-              >
-            </p>
-            <p class="text-gray-500 mt-2 text-sm md:text-base">
-              GitHub Repository URL:
-              <a
-                href="https://github.com/notamitgamer/bsc"
-                class="text-blue-600 hover:underline"
-                >https://github.com/notamitgamer/bsc</a
-              >
-            </p>
-          </div>
-
-          <!-- SEARCH BAR (Enhanced with Icon and Clear Button) -->
-          <div class="mb-8 relative">
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-              class="absolute inset-y-0 left-0 pl-3 flex items-center pointer-events-none"
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-              <!-- Search Icon -->
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-                class="w-5 h-5 text-gray-400"
-                fill="none"
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-                ></path>
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-              type="text"
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-              placeholder="Search files by name or content keywords (Press '/' to focus)"
-              class="w-full p-3 pl-10 pr-10 border-2 border-gray-300 rounded-xl focus:outline-none focus:ring-2 focus:ring-blue-500 transition duration-150"
-              oninput="handleSearch()"
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-            />
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-              id="clear-search-btn"
-              onclick="clearSearch()"
-              class="absolute inset-y-0 right-0 pr-3 flex items-center focus:outline-none hidden"
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-              <svg
-                class="w-5 h-5 text-gray-400 hover:text-gray-600 transition-colors"
-                fill="none"
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-                  stroke-linecap="round"
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-                  stroke-width="2"
-                  d="M6 18L18 6M6 6l12 12"
-                ></path>
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-          <!-- END SEARCH BAR -->
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-              Search Results (<span id="result-count">0</span> files)
-            </h2>
-            <div
-              class="flex flex-col md:flex-row space-y-4 md:space-y-0 md:space-x-4"
-            >
-              <!-- 1. File List (Wider on mobile, 1/3 on desktop) -->
-              <div
-                id="result-file-list"
-                class="w-full md:w-1/3 space-y-2 border rounded-xl p-4 bg-gray-50 max-h-[50vh] md:max-h-[60vh] overflow-y-auto"
-              >
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-                  Start typing to see file matches...
-                </p>
-              </div>
-              <!-- 2. Code Match Display (Wider on mobile, 2/3 on desktop) -->
-              <div
-                id="result-code-matches"
-                class="w-full md:w-2/3 border rounded-xl p-4 bg-white shadow-inner max-h-[50vh] md:max-h-[60vh] overflow-y-auto relative"
-              >
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-                  Select a file from the left to view matching code lines, or
-                  refine your search.
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-                
-                        <li class="border rounded-lg overflow-hidden">
-                            <div class="folder-header bg-gray-100 p-4 cursor-pointer hover:bg-blue-100 transition-colors duration-200" onclick="toggleFolder('assignment')">
-                                <div class="flex items-center justify-between">
-                                    <div class="flex items-center">
-                                        <svg class="w-6 h-6 text-blue-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M3 7v10a2 2 0 002 2h14a2 2 0 002-2V9a2 2 0 00-2-2h-6l-2-2H5a2 2 0 00-2 2z"></path></svg>
-                                        <span class="font-medium text-gray-800">assignment</span>
-                                        <span class="ml-2 text-sm text-gray-500">(6 files)</span>
-                                    </div>
-                                    <div class="flex items-center space-x-4">
-                                        <a href="https://github.com/notamitgamer/bsc/tree/main/assignment" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" onclick="event.stopPropagation()" title="View folder on GitHub">
-                                            <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                        </a>
-                                        <div class="chevron" id="chevron-assignment"><svg class="w-5 h-5 text-gray-500 transition-transform duration-200" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M19 9l-7 7-7-7"></path></svg></div>
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-                            <div class="folder-content hidden bg-white" id="folder-assignment">
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-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">Assignment.docx</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/assignment/Assignment.docx" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
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-                                                <button onclick="showCode('code-assignment-Assignment_docx', 'Assignment.docx')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
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-                                        <div id="code-assignment-Assignment_docx" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/assignment/Assignment.docx">
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-                                            <span class="text-gray-700">Assignment.pdf</span>
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-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
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-                                            <span class="text-gray-700">assignment01.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/assignment/assignment01.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-assignment-assignment01_c', 'assignment01.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-assignment-assignment01_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/assignment/assignment01.c">
-                                            <pre><code class="language-c">/* Author: Amit Dutta, Date: 27-11-2025*/
-#include &lt;stdio.h&gt;
-#include &lt;math.h&gt;
-
-int isPrime(int);
-
-int main()
-{
-    int n;
-    printf(&quot;Enter the number: &quot;);
-    scanf(&quot;%d&quot;, &amp;n);
-
-    if (isPrime(n))
-    {
-        printf(&quot;\nInput %d is a Prime Number.&quot;, n);
-    }
-    else
-    {
-        printf(&quot;\nInput %d is not a Prime Number.&quot;, n);
-    }
-
-    return 0;
-}
-
-int isPrime(int n)
-{
-    if (n &lt;= 1)
-        return 0;
-    if (n == 2)
-        return 1;
-    if (n % 2 == 0)
-        return 0;
-
-    int temp = (int)sqrt(n);
-    int i;
-    for (i = 3; i &lt;= temp; i += 2)
-    {
-        if (n % i == 0)
-        {
-            return 0;
-        }
-    }
-    return 1;
-}
-</code></pre>
-                                        </div>
-                                    </li>
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-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">assignment02.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/assignment/assignment02.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-assignment-assignment02_c', 'assignment02.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-assignment-assignment02_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/assignment/assignment02.c">
-                                            <pre><code class="language-c">/* Author: Amit Dutta, Date: 27-11-2025*/
-#include &lt;stdio.h&gt;
-#include &lt;math.h&gt;
-
-int isArmstrong(int);
-int count(int);
-
-int main()
-{
-    int n;
-    printf(&quot;Enter the number: &quot;);
-    scanf(&quot;%d&quot;, &amp;n);
-
-    if (isArmstrong(n))
-    {
-        printf(&quot;\nInput %d is a Armstrong Number.&quot;, n);
-    }
-    else
-    {
-        printf(&quot;\nInput %d is Not a Armstrong Number.&quot;, n);
-    }
-
-    return 0;
-}
-
-int count(int n)
-{
-    int count = 0;
-    while (n &gt; 0)
-    {
-        count++;
-        n = n / 10;
-    }
-    return count;
-}
-
-int isArmstrong(int n)
-{
-    if (n &lt; 0)
-        return 0; 
-    if (n == 0)
-        return 1;
-
-    int power = count(n);
-    int temp = n;
-    int checker = 0;
-
-    while (temp &gt; 0)
-    {
-        int digit = temp % 10;
-        checker = checker + (int)round(pow(digit, power));
-        temp = temp / 10;
-    }
-    return n == checker;
-}
-</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">assignment03.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/assignment/assignment03.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-assignment-assignment03_c', 'assignment03.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-assignment-assignment03_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/assignment/assignment03.c">
-                                            <pre><code class="language-c">/* Author: Amit Dutta, Date: 27-11-2025*/
-#include &lt;stdio.h&gt;
-
-int isPerfect(int);
-
-int main()
-{
-    int n;
-    printf(&quot;Enter the number: &quot;);
-    scanf(&quot;%d&quot;, &amp;n);
-    if (isPerfect(n))
-    {
-        printf(&quot;\nInput %d is a Perfect Number.&quot;, n);
-    }
-    else
-    {
-        printf(&quot;\nInput %d is not a Perfect Number.&quot;, n);
-    }
-    return 0;
-}
-
-int isPerfect(int n)
-{
-    if (n &lt;= 1)
-        return 0;
-    int temp = 1;
-    int i;
-    for (i = 2; i &lt;= n / 2; i++)
-    {
-        if (n % i == 0)
-        {
-            temp += i;
-        }
-    }
-    return temp == n;
-}
-</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">assignment04.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/assignment/assignment04.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-assignment-assignment04_c', 'assignment04.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-assignment-assignment04_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/assignment/assignment04.c">
-                                            <pre><code class="language-c">/* Author: Amit Dutta, Date: 27-11-2025*/
-#include &lt;stdio.h&gt;
-
-int main()
-{
-    int month, year, days;
-    printf(&quot;Enter the month (1 to 12) and year: &quot;);
-    scanf(&quot;%d %d&quot;, &amp;month, &amp;year);
-
-    switch (month)
-    {
-    case 1:  // jan
-    case 3:  // mar
-    case 5:  // may
-    case 7:  // july
-    case 8:  // aug
-    case 10: // oct
-    case 12: // dec
-        days = 31;
-        break;
-    case 4:  // apr
-    case 6:  // jun
-    case 9:  // sep
-    case 11: // nov
-        days = 30;
-        break;
-    case 2: // feb
-        if ((year % 400 == 0) || ((year % 4 == 0) &amp;&amp; (year % 100 != 0)))
-        {
-            days = 29;
-        }
-        else
-        {
-            days = 28;
-        }
-        break;
-    default:
-        printf(&quot;\nYou entered something wrong.&quot;);
-        return 0;
-    }
-
-    printf(&quot;\nNumber of days: %d&quot;, days);
-    return 0;
-}
-</code></pre>
-                                        </div>
-                                    </li>
-                </ul>
-            </div>
-        </li>
-
-                        <li class="border rounded-lg overflow-hidden">
-                            <div class="folder-header bg-gray-100 p-4 cursor-pointer hover:bg-blue-100 transition-colors duration-200" onclick="toggleFolder('c')">
-                                <div class="flex items-center justify-between">
-                                    <div class="flex items-center">
-                                        <svg class="w-6 h-6 text-blue-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M3 7v10a2 2 0 002 2h14a2 2 0 002-2V9a2 2 0 00-2-2h-6l-2-2H5a2 2 0 00-2 2z"></path></svg>
-                                        <span class="font-medium text-gray-800">c</span>
-                                        <span class="ml-2 text-sm text-gray-500">(7 files)</span>
-                                    </div>
-                                    <div class="flex items-center space-x-4">
-                                        <a href="https://github.com/notamitgamer/bsc/tree/main/c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" onclick="event.stopPropagation()" title="View folder on GitHub">
-                                            <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                        </a>
-                                        <div class="chevron" id="chevron-c"><svg class="w-5 h-5 text-gray-500 transition-transform duration-200" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M19 9l-7 7-7-7"></path></svg></div>
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-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">1.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/c/1.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-c-1_c', '1.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-c-1_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/c/1.c">
-                                            <pre><code class="language-c">// Write a program (WAP) to print the sum and product of digits of an integer.
-// Author - Amit Dutta, Date - 13th SEP, 2025
-
-#include&lt;stdio.h&gt;
-
-int main() {
-	int inp, result_sum = 0, result_product = 1, temp;
-	printf(&quot;Please enter the number : &quot;);
-	scanf(&quot;%d&quot;,&amp;inp);
-	printf(&quot;\n&quot;);
-	
-	if (inp &lt; 0) {
-		printf(&quot;\nPlease enter a valid non negetive integer.&quot;);
-		return 1;
-	}
-	
-	temp = inp;
-	while (temp != 0 ) {
-		result_sum = result_sum + (temp % 10);
-		result_product = result_product * (temp % 10);
-		temp = temp / 10;
-	}
-	
-	printf(&quot;\nSum of the digits of the input number &#x27;%d&#x27; is : %d&quot;
-		&quot;\nProduct of the digits of the input number &#x27;%d&#x27; is : %d&quot;,
-		inp, result_sum, inp, result_product);
-	return 0;
-}
-
-</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">2.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/c/2.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-c-2_c', '2.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-c-2_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/c/2.c">
-                                            <pre><code class="language-c">//WAP to reverse a non-negative integer.
-// Author - Amit Dutta, Date - 13th SEP, 2025
-
-#include&lt;stdio.h&gt;
-
-int main() {
-	int inp, result = 0, temp;
-	printf(&quot;PLease enter the number you want to reverse : &quot;);
-	scanf(&quot;%d&quot;,&amp;inp);
-	printf(&quot;\n&quot;);
-	
-	if (inp &lt; 0) {
-		printf(&quot;\nPlease enter a non negetive integer.&quot;);
-		return 1;
-	}
-	
-	temp = inp;
-	while ( temp != 0) {
-		result = (result * 10) + (temp % 10);
-		temp = temp / 10;
-	}
-	
-	printf(&quot;\nReverse of the input &#x27;%d&#x27; is : %d&quot;, inp, result);
-	return 0;
-}
-
-</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">3.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/c/3.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-c-3_c', '3.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-c-3_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/c/3.c">
-                                            <pre><code class="language-c">// WAP to compute the sum of the first n terms of the following series S =1+1/2+1/3+1/4+...... 
-// Author - Amit Dutta, Date - 13th SEP, 2025
-
-#include&lt;stdio.h&gt;
-
-int main() {
-	int n, i;
-	float result = 0;
-	printf(&quot;Please enter the value for &#x27;n&#x27; : &quot;);
-	scanf(&quot;%d&quot;, &amp;n);
-	printf(&quot;\n&quot;);
-	
-	if (n &lt;= 0) {
-		printf(&quot;\nPlease enter a positve number greater than ZERO.&quot;);
-		return 1;
-	}
-	
-	for (i = 1; i &lt;= n; i++) {
-		result = result + (1.0 / i);
- 	}
-	
-	printf(&quot;\nSum of the first %d terms of the following series S =1+1/2+1/3+1/4+...... is : %f&quot;,n,result);
-	return 0;
-}
-</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">4.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/c/4.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-c-4_c', '4.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-c-4_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/c/4.c">
-                                            <pre><code class="language-c">//WAP to compute the sum of the first n terms of the following series,S =1-2+3-4+5......
-// Author - Amit Dutta, Date - 13th SEP, 2025
-
-#include&lt;stdio.h&gt;
-
-int main() {
-	int n, result = 0, temp, i;
-	printf(&quot;Please enter the value for &#x27;n&#x27; for this series &#x27;s = 1-2+3-4+5-....&#x27;: &quot;);
-	scanf(&quot;%d&quot;,&amp;n);
-	printf(&quot;\n&quot;);
-	
-	if (n &lt;= 0) {
-		printf(&quot;\nPlease enter a positive integer.&quot;);
-		return 1;
-	}
-	
-	for (i = 1; i&lt;= n; i++) {
-		if (i % 2 == 0) {
-			result = result - i;
-		}
-		else {
-			result = result + i;
-		}
-	}
-	
-	printf(&quot;\nAns : %d&quot;, result);
-}
-</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">5.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/c/5.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-c-5_c', '5.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-c-5_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/c/5.c">
-                                            <pre><code class="language-c">/*Write a function to find whether a given no. is prime or not. 
-Use the same to generate the prime numbers less than 100.*/
-// Author - Amit Dutta, Date - 13th SEP, 2025
-
-#include&lt;stdio.h&gt;
-
-int isPrime(int inp) {
-	int i, is_prime = 1;
-	
-	if (inp &lt; 2) is_prime = 0;
-	
-	for (i = 2; i &lt;= inp / 2; i++) if (inp % i == 0) {
-		is_prime = 0;
-		break;
-	}
-	
-	return is_prime;
-}
-
-
-int main() {
-	int inp, i;
-	printf(&quot;Enter the number you want to check : &quot;);
-	scanf(&quot;%d&quot;,&amp;inp);
-	printf(&quot;\n&quot;);
-	
-	if (isPrime(inp)) printf(&quot;\nGiven input &#x27;%d&#x27; is a Prime Number.&quot;,inp);
-	else printf(&quot;\nGiven input &#x27;%d&#x27; is not a Prime Number.&quot;,inp);
-	
-	printf (&quot;\nSeries of prime number upto 100 : &quot;);
-	for (i = 2; i &lt; 100; i++) if (isPrime(i)) printf(&quot; %d&quot;,i);
-	
-	return 0;
-}
-</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">6.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/c/6.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-c-6_c', '6.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-c-6_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/c/6.c">
-                                            <pre><code class="language-c">/*Write a function that checks whether a given string is Palindrome or not.
-Use this function to find whether the string entered by the user is Palindrome or not.*/
-// Author - Amit Dutta, Date - 13th SEP, 2025
-
-#include&lt;stdio.h&gt;
-#include&lt;string.h&gt;
-
-int isPalindrome(char inp[]) {
-	int len = strlen(inp);
-	int i = 0; //starting point
-	int j = len - 1; //end point
-	
-	while (i &lt; j) {
-		if (inp[i] != inp[j]) {
-			return 0;
-		}
-		i++;
-		j--;
-	}
-
-	return 1;
-}
-
-int main() {
-	char inp[20];
-	printf(&quot;Enter the number : &quot;);
-	scanf(&quot;%s&quot;,inp);
-	if (isPalindrome(inp)) printf(&quot;\n\nInput &#x27;%s&#x27; is a Palindrome number.&quot;, inp);
-	else printf(&quot;\n\nInput &#x27;%s&#x27; is not a Palindrome number.&quot;, inp);
-	return 0;
-}
-</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">7.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/c/7.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-c-7_c', '7.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-c-7_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/c/7.c">
-                                            <pre><code class="language-c">// WAP to compute the factors of a given number
-// Author - Amit Dutta, Date - 13th SEP, 2025
-
-#include&lt;stdio.h&gt;
-#include&lt;stdlib.h&gt;
-
-int main() {
-	int inp, num, i;
-	printf(&quot;Please enter the number to get the factors from it : &quot;);
-	scanf(&quot;%d&quot;, &amp;inp);
-
-	num = abs(inp);
-	
-	if (num == 0) {
-		printf(&quot;\n\n0 has infinitely many factors (all integers).&quot;);
-		return 1;
-	}
-	
-	printf(&quot;\n\nThe factors of &#x27; %d &#x27; is :- &quot;, inp);
-	printf(&quot;\nPositive : &quot;);
-	for (i = 1; i &lt;= num ; i++) if (num % i == 0) printf(&quot;  %d&quot;, i);
-	printf(&quot;\nNegative : &quot;);
-	for (i = 1; i &lt;= num ; i++) if (num % i == 0) printf(&quot;  %d&quot;, -i);
-	return 0;
-}
-</code></pre>
-                                        </div>
-                                    </li>
-                </ul>
-            </div>
-        </li>
-
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-                                        <span class="font-medium text-gray-800">challenge</span>
-                                        <span class="ml-2 text-sm text-gray-500">(2 files)</span>
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-                                        <a href="https://github.com/notamitgamer/bsc/tree/main/challenge" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" onclick="event.stopPropagation()" title="View folder on GitHub">
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-                                            <span class="text-gray-700">sudipto1.c</span>
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-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-challenge-sudipto1_c', 'sudipto1.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-challenge-sudipto1_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/challenge/sudipto1.c">
-                                            <pre><code class="language-c">/* A smart home security controller monitors the state of several sensors to decide what action to take.
- * Each second, the system reads data from sensors that can either be active or inactive. Based on the current
- * state of all sensors, the controller must perform exactly one action, such as activating a warning, checking
- * a specific zone, or declaring an intrusion. Write a C program that reads the sensor states as input and
- * prints the corresponding system action.
- -- Conditions:
-    * 1. You must determine exactly one action for every possible combination of sensor states.
-    * 2. You are not allowed to use any conditional statements (if, else if, else, or the ternary operator?).
-    * 3. You are not allowed to use logical operators.
-    * 4. You must use a single switch statement to control the program&#x27;s behaviour.
-    * 5. Loops may only be used for reading input, not for making decisions.
-    * 6. The program should handle all possible combinations of the sensors&#x27; active/inactive states and print the appropriate response each time.
- -- Example (for understanding):
- * If all sensors are inactive, the system should remain idle.
- * If some sensors are active, the system should issue warnings or alerts based on the situation.
- * If all sensors are active, the system should declare a confirmed intrusion.
- */
-
-/*
- * This program monitors the state of four sensors (Door, Window, Motion, Glass Break)
- * and determines the appropriate action without using any conditional (if, else)
- * or logical (&amp;&amp;, ||) operators.
- *
- * It works by combining the state of all sensors into a single integer value
- * using bitmasking. Each bit in the integer represents the state of one sensor
- * (1 for active, 0 for inactive). This combined state is then used in a single
- * switch statement to select the correct action for every possible combination.
- *
- * Then, enter the state of the four sensors separated by spaces,
- * for example: 1 0 1 0
- */
-
-/* Author - Amit Dutta, Date - 12th October, 2025 */
-
-#include &lt;stdio.h&gt;
-int main()
-{
-
-   // variables to hold the state of a sensor (0 or 1)
-   int doorSensorState, windowSensorState, motionSensorState, glassbreakSensorState;
-
-   // variable to check the combined state of all four sensor
-   int combinedState = 0;
-
-   // a invalid flag to check the input are valid or not
-   unsigned int invalidFlag;
-
-   // printing the way to usage the program
-   printf(&quot;------ Home Security Controller ------\n&quot;);
-   printf(&quot;Enter sensor states (1 for active, 0 for inactive).\n&quot;);
-   printf(&quot;Format: [Door] [Window] [Motion] [Glass Break]\n&quot;);
-   printf(&quot;Example: 0 1 1 0\n&quot;);
-   printf(&quot;Enter states (or press Ctrl+D for MacOS or Linux / Ctrl+Z for Windows to exit): &quot;);
-
-   // doing the main calculation
-   // chacking the combined state and taking a decision
-   while (scanf(&quot;%d %d %d %d&quot;, &amp;doorSensorState, &amp;windowSensorState, &amp;motionSensorState, &amp;glassbreakSensorState) == 4)
-   {
-      // validating input
-      // The expression (variable &amp; ~1) results in 0 only if &#x27;variable&#x27; is 0 or 1.
-      // For any other positive number, it&#x27;s non-zero.
-      // We combine all checks with a bitwise OR. If any sensor state is invalid,
-      // the flag will become non-zero.
-      invalidFlag = (doorSensorState &amp; ~1) | (windowSensorState &amp; ~1) | (motionSensorState &amp; ~1) | (glassbreakSensorState &amp; ~1);
-
-      // Combine the four sensor states into a single integer using bitwise operations.
-      // This creates a unique number from 0 to 15 for each possible combination.
-      // Bit 0: Door Sensor
-      // Bit 1: Window Sensor
-      // Bit 2: Motion Sensor
-      // Bit 3: Glass Break Sensor
-      combinedState = (glassbreakSensorState &lt;&lt; 3) | (motionSensorState &lt;&lt; 2) | (windowSensorState &lt;&lt; 1) | doorSensorState;
-
-      // If the invalid_input_flag is non-zero, we add 16 to the state.
-      // This pushes it outside the 0-15 range and forces the &#x27;default&#x27; case in the switch.
-      // We achieve this by multiplying the flag (which is &gt; 0) by 16.
-      combinedState += invalidFlag * 16;
-
-      // printing the given state
-      printf(&quot;\n\nState : [Door : %d, Window : %d, Motion : %d, Glass Break : %d]\nState Id : %d&quot;,
-             doorSensorState, windowSensorState, motionSensorState, glassbreakSensorState, combinedState);
-      printf(&quot;\nSystem Action : &quot;);
-
-      // taking decision based on combined state
-      // A single switch statement controls the program&#x27;s behavior.
-      // It handles all 2^4 = 16 possible combinations of sensor states,
-      // ensuring exactly one action is taken for every scenario.
-      switch (combinedState)
-      {
-      case 0: // Binary: 0000
-         printf(&quot;System Idle. All sensors inactive.\n&quot;);
-         break;
-      case 1: // Binary: 0001
-         printf(&quot;Check front door camera.\n&quot;);
-         break;
-      case 2: // Binary: 0010
-         printf(&quot;Check window sensors.\n&quot;);
-         break;
-      case 3: // Binary: 0011
-         printf(&quot;Warning: Perimeter breach suspected. Check doors and windows.\n&quot;);
-         break;
-      case 4: // Binary: 0100
-         printf(&quot;Check interior cameras for movement.\n&quot;);
-         break;
-      case 5: // Binary: 0101
-         printf(&quot;Warning: Potential entry and movement detected. Check front door and interior. Ask for patrol.\n&quot;);
-         break;
-      case 6: // Binary: 0110
-         printf(&quot;Warning: Potential entry and movement detected. Check windows and interior. Ask for patrol.\n&quot;);
-         break;
-      case 7: // Binary: 0111
-         printf(&quot;Alert: High probability of unauthorized entry. Ask for patrol.\n&quot;);
-         break;
-      case 8: // Binary: 1000
-         printf(&quot;Alert: Glass break detected. High-priority event. Ask for patrol.\n&quot;);
-         break;
-      case 9: // Binary: 1001
-         printf(&quot;Severe Alert: Forced entry likely (door + glass). Activate Alarm and Contact authorities.\n&quot;);
-         break;
-      case 10: // Binary: 1010
-         printf(&quot;Severe Alert: Forced entry likely (window + glass). Activate Alarm and Contact authorities.\n&quot;);
-         break;
-      case 11: // Binary: 1011
-         printf(&quot;Intrusion Alert: Multiple perimeter breaches. Activate Alarm and Contact authorities.\n&quot;);
-         break;
-      case 12: // Binary: 1100
-         printf(&quot;Intrusion Alert: Confirmed interior presence after breach. Activate Alarm and Contact authorities.\n&quot;);
-         break;
-      case 13: // Binary: 1101
-         printf(&quot;INTRUSION CONFIRMED! Activate maximum response protocol. Activate Alarm and Contact authorities.\n&quot;);
-         break;
-      case 14: // Binary: 1110
-         printf(&quot;INTRUSION CONFIRMED! Activate maximum response protocol. Activate Alarm and Contact authorities.\n&quot;);
-         break;
-      case 15: // Binary: 1111
-         printf(&quot;CATASTROPHIC EVENT! ALL SENSORS TRIGGERED. ACTIVATE ALARM AND CONTACT COPS.\n&quot;);
-         break;
-      default:
-         // This case should not be reached with valid 0/1 input but is included for completeness.
-         printf(&quot;Error: Invalid sensor state detected.\n&quot;);
-         break;
-      }
-
-      // discarding extra characters (if any) left
-      while (getchar() != &#x27;\n&#x27;)
-         ;
-
-      // asking for next set of input
-      printf(&quot;\nEnter next set of states: &quot;);
-   }
-   printf(&quot;\nSecurity system shutting down.\n&quot;);
-}</code></pre>
-                                        </div>
-                                    </li>
-
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-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
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-                                            <span class="text-gray-700">sudiptoown01.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/challenge/sudiptoown01.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
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-                                                </a>
-                                                <button onclick="showCode('code-challenge-sudiptoown01_c', 'sudiptoown01.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-challenge-sudiptoown01_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/challenge/sudiptoown01.c">
-                                            <pre><code class="language-c">/*
- * A smart home security controller monitors the state of several sensors to decide what action to take.
- * Each second, the system reads data from sensors that are either an active or inactive. Based on the current
- * state of all sensors, the controller must perform exactly one action, such as activating a warning, checking
- * a specific zone, or declaring an intrusion. Write a C program that reads the sensor status as input and
- * prints the corresponding system action.
- * Hints:
- * 1. The most determinative action wins for every possible combination of sensor states.
- * 2. You are not allowed to use any conditional statements (if, else if, else, or the ternary operator?).
- * 3. You are not allowed to use logical operators.
- * 4. You must use a single switch statement to control the program&#x27;s behavior.
- * 5. The program should handle all possible combinations of the sensors&#x27; active/inactive states and print the appropriate response each time.
- * 6. All sensors are inactive, the system should remain idle.
- * 7. If some sensors are active, the system should issue warnings or alerts based on the situation.
- * 8. If all sensors are active, the system should declare a confirmed intrusion.
- * Solution:
- * We can solve this problem simply by assigning each case its own distinct integer.
- * There are 2 possibilities for a sensor and therefore there are 2^4 = 16 cases.
- * Using arrays we can assign each case its own index value and print it as per the encoded binary integer.
- */
-#include &lt;stdio.h&gt;
-
-int casekey(int door, int window, int motion, int glass) {
-    int key = (door &lt;&lt; 3) | (window &lt;&lt; 2) | (motion &lt;&lt; 1) | glass;
-    return key;
-}
-
-int main() {
-    int door, window, motion, glass, key;
-    char choice;
-
-    static const char *action[16] = {
-        &quot;IDLE&quot;, &quot;CHECK WINDOW&quot;, &quot;WARN MOTION&quot;, &quot;WARN MOTION WINDOW&quot;,
-        &quot;CHECK DOOR&quot;, &quot;WARN DOOR WINDOW&quot;, &quot;INTRUSION SUSPECTED&quot;, &quot;INTRUSION CONFIRMED&quot;,
-        &quot;GLASS ONLY&quot;, &quot;DOOR GLASS&quot;, &quot;MOTION GLASS&quot;, &quot;MOTION WINDOW GLASS&quot;,
-        &quot;DOOR WINDOW&quot;, &quot;DOOR WINDOW GLASS&quot;, &quot;DOOR MOTION GLASS&quot;, &quot;ALL SENSORS&quot;
-    };
-
-    do {
-        printf(&quot;Sensors: Door, Window, Motion, Glass\n&quot;);
-        printf(&quot;Enter the state of each sensor in binary (0 or 1): &quot;);
-        scanf(&quot;%d %d %d %d&quot;, &amp;door, &amp;window, &amp;motion, &amp;glass);
-
-        key = casekey(door, window, motion, glass);
-        printf(&quot;Action: %s\n&quot;, action[key]);
-
-        printf(&quot;Want to continue? (y/n): &quot;);
-        scanf(&quot; %c&quot;, &amp;choice);
-        printf(&quot;\n&quot;);
-    } while (choice == &#x27;y&#x27; || choice == &#x27;Y&#x27;);
-
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-                </ul>
-            </div>
-        </li>
-
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-                                        <span class="font-medium text-gray-800">khurapati-idea</span>
-                                        <span class="ml-2 text-sm text-gray-500">(2 files)</span>
-                                    </div>
-                                    <div class="flex items-center space-x-4">
-                                        <a href="https://github.com/notamitgamer/bsc/tree/main/khurapati-idea" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" onclick="event.stopPropagation()" title="View folder on GitHub">
-                                            <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
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-                                            <span class="text-gray-700">KI001.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/khurapati-idea/KI001.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
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-                                                <button onclick="showCode('code-khurapati-idea-KI001_c', 'KI001.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-khurapati-idea-KI001_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/khurapati-idea/KI001.c">
-                                            <pre><code class="language-c">// khurapati idea no. : 1
-// Idea : we can use the side effect of printf function to get length of any string or number
-// Author - Amit Dutta, Date - 16-10-2025
-
-#include &lt;stdio.h&gt;
-int main()
-{
-    // testing number
-    int num, len = -13 /* here minus 13 because we will remove the massage characters in line 10 */;
-    printf(&quot;Enter a number to get the length : &quot;);
-    scanf(&quot;%d&quot;, &amp;num);
-    len += printf(&quot;Your input : %d&quot;, num); // here the &quot;Your input : &quot;, this 13 characters are extra
-    printf(&quot;\nLength : %d&quot;, len);
-
-    // testing char
-    char a[20];
-    len = -13;
-    while (getchar() != &#x27;\n&#x27;)
-        ;
-    printf(&quot;\nEnter a word to get the length : &quot;);
-    scanf(&quot;%19s&quot;, &amp;a);
-    len += printf(&quot;Your input : %s&quot;, a);  // here the &quot;Your input : &quot;, this 13 characters are extra
-    printf(&quot;\nLength : %d&quot;, len);
-    return 0;
-}</code></pre>
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-                                    </li>
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-                                            <span class="text-gray-700">KI002.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/khurapati-idea/KI002.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-khurapati-idea-KI002_c', 'KI002.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-khurapati-idea-KI002_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/khurapati-idea/KI002.c">
-                                            <pre><code class="language-c">/* Author - Amit Dutta, Date - 05th November, 2025 */
-
-/* Plan - checking for edge case */
-
-#include &lt;stdio.h&gt;
-int main()
-{
-    printf(&quot;Starting.....\n&quot;);
-
-    for (int i = 1; ; i++)
-    {
-        printf(&quot;i = %d\n&quot;, i);
-    }
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-                </ul>
-            </div>
-        </li>
-
-                        <li class="border rounded-lg overflow-hidden">
-                            <div class="folder-header bg-gray-100 p-4 cursor-pointer hover:bg-blue-100 transition-colors duration-200" onclick="toggleFolder('letusc')">
-                                <div class="flex items-center justify-between">
-                                    <div class="flex items-center">
-                                        <svg class="w-6 h-6 text-blue-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M3 7v10a2 2 0 002 2h14a2 2 0 002-2V9a2 2 0 00-2-2h-6l-2-2H5a2 2 0 00-2 2z"></path></svg>
-                                        <span class="font-medium text-gray-800">letusc</span>
-                                        <span class="ml-2 text-sm text-gray-500">(69 files)</span>
-                                    </div>
-                                    <div class="flex items-center space-x-4">
-                                        <a href="https://github.com/notamitgamer/bsc/tree/main/letusc" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" onclick="event.stopPropagation()" title="View folder on GitHub">
-                                            <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                        </a>
-                                        <div class="chevron" id="chevron-letusc"><svg class="w-5 h-5 text-gray-500 transition-transform duration-200" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M19 9l-7 7-7-7"></path></svg></div>
-                                    </div>
-                                </div>
-                            </div>
-                            <div class="folder-content hidden bg-white" id="folder-letusc">
-                                <ul class="divide-y divide-gray-200">
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">luc001.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/luc001.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-letusc-luc001_c', 'luc001.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-letusc-luc001_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/luc001.c">
-                                            <pre><code class="language-c">/* Temperature of a city in fahrenheit degrees is input through
-the keyboard. WAP to convert this temperature into Centigrade
-degrees. */
-/* Author - Amit Dutta, Date - 13 sep, 2025 */
-/* Chapter 1; Page 19; Question NO.: F(a) */
-
-#include&lt;stdio.h&gt;
-int main() {
-	float f, c;
-	printf(&quot;Enter the temperature of city in Fahrenheit : &quot;);
-	scanf(&quot;%f&quot;, &amp;f);
-	// formula (F - 32) 5/9
-	c = ((f - 32) * 5) / 9;
-	printf(&quot;\nTemperature in centigrade : %f&quot;, c);
-	return 0;
-}
-</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">luc002.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/luc002.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-letusc-luc002_c', 'luc002.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-letusc-luc002_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/luc002.c">
-                                            <pre><code class="language-c">/* The length and breadth of a rectangle and radius of a circle
-are input through the keyboard. Write a program to calculate the
-area and perimeter of the rectangle, and the area and circumference
-of the circle. */
-/* Author - Amit Dutta, Date - 16th SEP, 2025 */
-/* Let Us C; Page - 19; Chap- 1; QNo.: F(b) */
-
-#include &lt;stdio.h&gt;
-#include &lt;math.h&gt;
-int main()
-{
-	double len, bre, r, area_r, per, area_c, cir;
-	printf(&quot;Enter the length and breadth of the rectangle : &quot;);
-	scanf(&quot;%lf %lf&quot;, &amp;len, &amp;bre);
-	printf(&quot;Enter the Radius of the circle : &quot;);
-	scanf(&quot;%lf&quot;, &amp;r);
-	area_r = len * bre;
-	per = 2 * (len + bre);
-	area_c = M_PI * r * r;
-	cir = 2 * M_PI * r;
-	printf(&quot;\nArea of Rectangle       : %lf&quot;
-		   &quot;\nPerimeter of Rectangle  : %lf&quot;
-		   &quot;\nArea of Circle          : %lf&quot;
-		   &quot;\nCircumference of Circle : %lf&quot;,
-		   area_r, per, area_c, cir);
-	return 0;
-}
-</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">luc003.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/luc003.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-letusc-luc003_c', 'luc003.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-letusc-luc003_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/luc003.c">
-                                            <pre><code class="language-c">/* Paper of size AO has dimensions 1189 mm x 841 mm.
-Each subsequent size A(n) is defined as A(n-1) cut in
-half, parallel to its shorter sides. Thus, paper of
-size A1 would have dimensions 841 mm x 594 mm. Write
-a program to calculate and print paper sizes A0,�
-A1,�A2,�...�A8. */
-/* Author - Amit Dutta, Date - 16th SEP, 2025 */
-/* Let Us C; Page - 19; Chap- 1; QNo.: F(c) */
-
-#include&lt;stdio.h&gt;
-#include&lt;math.h&gt;
-int main() {
-	double s_long = 1189.0, s_short = 841.0, temp;
-	int i;
-	printf(&quot;A0 Dimension : %g mm x %g mm&quot;, floor(s_long), floor(s_short));
-	for (i = 1; i &lt;= 8; i++) {
-		temp = s_long;
-		s_long = s_short;
-		s_short = temp / 2;
-		printf(&quot;\nA%d Dimension : %g mm x %g mm&quot;, i, floor(s_long), floor(s_short));
-	}
-	return 0;
-}
-</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">luc004.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/luc004.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-letusc-luc004_c', 'luc004.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-letusc-luc004_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/luc004.c">
-                                            <pre><code class="language-c">/* If a five digit number is input through the keyboard,
-write a program to calculate the sum of it&#x27;s digit.
-(Hint : Use the modulus operator %) */
-/* Author - Amit Dutta, Date - 28th SEP, 2025 */
-/* Let Us C; Page - 37; Chap- 2; QNo.: G(a) */
-
-#include &lt;stdio.h&gt;
-int main()
-{
-    int inp, result = 0, i, temp;
-    printf(&quot;Enter a five digit number : &quot;);
-    scanf(&quot;%d&quot;, &amp;inp);
-    if (inp &lt; 10000 || inp &gt; 99999)
-    {
-        printf(&quot;\nPlease enter a valid five digit number.&quot;);
-        return 1;
-    }
-    temp = inp;
-    for (i = 1; i &lt;= 5; i++)
-    {
-        result = result + (inp % 10);
-        inp = inp / 10;
-    }
-    printf(&quot;\nSum of the digit &#x27;%d&#x27; is : %d&quot;, temp, result);
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">luc005.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/luc005.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-letusc-luc005_c', 'luc005.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-letusc-luc005_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/luc005.c">
-                                            <pre><code class="language-c">/* Write a program to recive Cartesian
-co-ordinates (x, y) of a point and convert
-them into Polar co-ordinates (r, phi)
-    Hint : r = sqrt (x^2 + y^2) and phi = tan^-1 (y/x) */
-/* Author - Amit Dutta, Date - 28th SEP, 2025 */
-/* Let Us C; Page - 37; Chap- 2; QNo.: G(b) */
-
-#include &lt;stdio.h&gt;
-#include &lt;math.h&gt;
-int main()
-{
-    double x, y, r, phi;
-    printf(&quot;Enter the Cartesian Co-Ordinates in this format &#x27;x, y&#x27; : &quot;);
-    scanf(&quot;%lf, %lf&quot;, &amp;x, &amp;y);
-    r = sqrt(pow(x, 2) + pow(y, 2));
-    phi = atan2(y, x);
-    printf(&quot;\nPolar Co-Ordinates are : (%g, %g Rad)&quot;, r, phi);
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">luc006.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/luc006.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-letusc-luc006_c', 'luc006.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-letusc-luc006_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/luc006.c">
-                                            <pre><code class="language-c">/* Write a program to receive values of latitude (L1, L2) and longitude
-(G1, G2), in degrees, of two places on the earth and output the distance
-(D) between them in nautical miles. The formula for distance in nautical
-miles is :
-    D = 3963 cos^-1(sin L1 sin L2 + cos L1 cos L2 * cos(G2 - G1))
-*/
-/* Author - Amit Dutta, Date - 29th SEP, 2025 */
-/* Let Us C, Chap - 2, Page - 37, Qn no.: G(c) */
-
-#include &lt;stdio.h&gt;
-#include &lt;math.h&gt;
-int main()
-{
-    double l1, l2, g1, g2, d;
-    printf(&quot;Enter the Latitude in &#x27;L1, L2&#x27; format : &quot;);
-    scanf(&quot;%lf, %lf&quot;, &amp;l1, &amp;l2);
-    printf(&quot;Enter the Longitude in &#x27;G1, G2&#x27; format : &quot;);
-    scanf(&quot;%lf, %lf&quot;, &amp;g1, &amp;g2);
-    // Converting degree to radian because function from math.h use radian not degree
-    l1 = l1 * (M_PI / 180);
-    l2 = l2 * (M_PI / 180);
-    g1 = g1 * (M_PI / 180);
-    g2 = g2 * (M_PI / 180);
-    d = 3963 * acos(sin(l1) * sin(l2) + cos(l1) * cos(l2) * cos(g2 - g1));
-    printf(&quot;Distance in nautical miles : %g&quot;, d);
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">luc007.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/luc007.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-letusc-luc007_c', 'luc007.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-letusc-luc007_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/luc007.c">
-                                            <pre><code class="language-c">/* Wind-chill factor is the felt air temperature on exposed skin due to wind.
-The wind-chill temperature is always lower than the air temperature, and is
-calculated as per the following formula.
-    wcf = 35.74 + 0.6215t + (0.4275t - 35.75) * v^0.16
-Where t is temperature and v is wind velocity. Write a program to receive
-values of t and v and calcualate wind-chill factor (wcf). */
-/* Author - Amit Dutta, Date - 30th SEP, 2025 */
-/* Let Us C, Chap - 2, Page - 37, Qn No.: G(d) */
-
-#include &lt;stdio.h&gt;
-#include &lt;math.h&gt;
-int main()
-{
-    double t, v, wcf;
-    printf(&quot;Enter the temperature and velociy of the wind : &quot;);
-    scanf(&quot;%lf %lf&quot;, &amp;t, &amp;v);
-    wcf = 35.74 + (0.6215 * t) + (((0.4275 * t) - 35.75) * pow(v, 0.16));
-    printf(&quot;\nWind-chill factor (wcf) : %g&quot;, wcf);
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">luc008.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/luc008.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-letusc-luc008_c', 'luc008.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-letusc-luc008_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/luc008.c">
-                                            <pre><code class="language-c">/* If value of an angle is input through the keyboard,
-write a program to print all its trigonometric ratios. */
-/* Author - Amit Dutta, Date - 30th SEP, 2025 */
-/* Let Us C, Chap - 2, Page - 37, Qn No.: G(e) */
-
-#include &lt;stdio.h&gt;
-#include &lt;math.h&gt;
-int main()
-{
-    double inp, rsin, rcos, rtan, rcosec, rsec, rcot;
-    printf(&quot;Enter the Angle in degree : &quot;);
-    scanf(&quot;%lf&quot;, &amp;inp);
-    inp = inp * (M_PI / 180); //changing degree to radian
-    rsin = sin(inp);
-    rcos = cos(inp);
-    rtan = tan(inp);
-    rcosec = 1 / rsin;
-    rsec = 1 / rcos;
-    rcot = 1 / rtan;
-    printf(&quot;\nTrigonometric ratios :-&quot;
-           &quot;\nsin   = %g &quot;
-           &quot;\ncos   = %g&quot;
-           &quot;\ntan   = %g&quot;
-           &quot;\ncosec = %g&quot;
-           &quot;\nsec   = %g&quot;
-           &quot;\ncot   = %g&quot;,
-           rsin, rcos, rtan, rcosec, rsec, rcot);
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">luc009.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/luc009.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-letusc-luc009_c', 'luc009.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-letusc-luc009_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/luc009.c">
-                                            <pre><code class="language-c">/* Two numbers are input through the keyboard into two locations
-C and D. Write a program to interchange the contents of C and D. */
-/* Author - Amit Dutta, Date - 30th SEP, 2025 */
-/* Let Us C, Chap - 2, Page - 37, Qn No.: G(d) */
-
-#include &lt;stdio.h&gt;
-int main()
-{
-    double a, b;
-    printf(&quot;Enter the two number A and B : &quot;);
-    scanf(&quot;%lf %lf&quot;, &amp;a, &amp;b);
-    printf(&quot;\nBefore Interchange : &quot;);
-    printf(&quot;\nA = %g (Memory location = %p)&quot;, a, &amp;a);
-    printf(&quot;\nB = %g (Memory location = %p)&quot;, b, &amp;b);
-    a = a + b;
-    b = a - b;
-    a = a - b;
-    printf(&quot;\nAfter Interchange :&quot;);
-    printf(&quot;\nA = %g (Memory location = %p)&quot;, a, &amp;a);
-    printf(&quot;\nB = %g (Memory location = %p)&quot;, b, &amp;b);
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">luc010.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/luc010.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-letusc-luc010_c', 'luc010.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-letusc-luc010_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/luc010.c">
-                                            <pre><code class="language-c">/* A five-digit number is entered through the keyboard. Write a program
-to obtain the reversed number and to etermine whether the original and reversed
-numbers are equal or not. */
-/* Author - Amit Dutta, Date - 1st OCT, 2025 */
-/* Let Us C, Chap - 3, Page - 53, Qn No.: f(a) */
-
-#include &lt;stdio.h&gt;
-int main()
-{
-    int num, rev, temp, i;
-    printf(&quot;Please enter the number : &quot;);
-    scanf(&quot;%d&quot;, &amp;num);
-    if (num &lt; 10000 || num &gt; 99999)
-    {
-        printf(&quot;\nPlease enter a five digit number.&quot;);
-        return 1;
-    }
-    temp = num;
-    for (i = 1; i &lt;= 5; i++)
-    {
-        rev = (rev * 10) + num % 10;
-        num = num / 10;
-    }
-    printf(&quot;\nReverse of the Input number : %d&quot;, rev);
-    if (rev == temp)
-        printf(&quot;\nOriginal and reversed numbers are equal.&quot;);
-    else
-        printf(&quot;\nOrigianl and reversed numbers are not equal.&quot;);
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">luc011.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/luc011.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-letusc-luc011_c', 'luc011.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-letusc-luc011_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/luc011.c">
-                                            <pre><code class="language-c">/* If ages of Ram, Shyam and Ajay are input through the keyboard,
-write a program to determine the youngest of the three. */
-/* Author - Amit Dutta, Date - 1st OCT, 2025 */
-/* Let Us C, Chap- 3, Page - 53, Qn No.: f(b) */
-
-#include &lt;stdio.h&gt;
-int main()
-{
-    int ram, shyam, ajay;
-    printf(&quot;Please enter the age of Ram, Shyam and Ajay : &quot;);
-    scanf(&quot;%d %d %d&quot;, &amp;ram, &amp;shyam, &amp;ajay);
-    if (ram == shyam || ram == ajay || shyam == ajay)
-        printf(&quot;\nThree must have different age.&quot;);
-    if (ram &lt; shyam &amp;&amp; ram &lt; ajay)
-        printf(&quot;\nRam is the youngest. Age : %d&quot;, ram);
-    if (shyam &lt; ram &amp;&amp; shyam &lt; ajay)
-        printf(&quot;\nShyam is the youngest. Age : %d&quot;, shyam);
-    if (ajay &lt; ram &amp;&amp; ajay &lt; shyam)
-        printf(&quot;\nAjay is the youngest. Age : %d&quot;, ajay);
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">luc012.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/luc012.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-letusc-luc012_c', 'luc012.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-letusc-luc012_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/luc012.c">
-                                            <pre><code class="language-c">/* Write a program to check whether a triangle is valid or not,
-if three angles of the triangle are entered through the keyboard.
-A triangle is valid if the sum of all the three angles is equal to 180 degrees. */
-/* Author - Amit Dutta, Date - 1st OCT, 2025 */
-/* Let Us C, Chap- 3, Page - 53, Qn No.: f(c) */
-
-#include &lt;stdio.h&gt;
-int main()
-{
-    double angle1, angle2, angle3, sum;
-    printf(&quot;Enter the value of the three angle of the triangle : &quot;);
-    scanf(&quot;%lf %lf %lf&quot;, &amp;angle1, &amp;angle2, &amp;angle3);
-    sum = angle1 + angle2 + angle3;
-    if (sum == 180.0)
-        printf(&quot;\nThis Triangle is a valid one.&quot;);
-    else
-        printf(&quot;\nThis Triangle is not valid. Sum of the angles : %g&quot;, sum);
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">luc013.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/luc013.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-letusc-luc013_c', 'luc013.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-letusc-luc013_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/luc013.c">
-                                            <pre><code class="language-c">/* Write a program to find the absolute value
-of a number entered through the keyboard. */
-/* Author - Amit Dutta, Date - 1st OCT, 2025 */
-/* Let Us C, Chap- 3, Page - 53, Qn No.: f(d) */
-
-#include &lt;stdio.h&gt;
-#include &lt;math.h&gt;
-int main()
-{
-    double num;
-    printf(&quot;Enter the number : &quot;);
-    scanf(&quot;%lf&quot;, &amp;num);
-    num = abs(num);
-    printf(&quot;\nAbsolute value of the input is : %g&quot;, num);
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">luc014.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/luc014.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-letusc-luc014_c', 'luc014.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-letusc-luc014_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/luc014.c">
-                                            <pre><code class="language-c">/* Given the length and breadth of a rectangle, write a program to find
-whether the area of the rectangle is greater than it&#x27;s perimeter.
-For example, the area of the rectangle with length = 5 and breadth = 4
-is greater than its perimeter. */
-/* Author - Amit Dutta, Date - 1st OCT, 2025 */
-/* Let Us C, Chap- 3, Page - 53, Qn No.: f(e) */
-
-#include &lt;stdio.h&gt;
-int main()
-{
-    double len, bre, area, peri;
-    printf(&quot;Enter the length and breadth of the rectangle : &quot;);
-    scanf(&quot;%lf %lf&quot;, &amp;len, &amp;bre);
-    area = len * bre;
-    peri = 2 * (len + bre);
-    if (area &gt; peri)
-        printf(&quot;\nThe area of the rectangle is greater than it&#x27;s perimeter.&quot;);
-    else if (area &lt; peri)
-        printf(&quot;\nThe area of the rectangle is lower than it&#x27;s perimeter.&quot;);
-    else
-        printf(&quot;\nThe area of the rectangle is same as it&#x27;s perimeter.&quot;);
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">luc015.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/luc015.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-letusc-luc015_c', 'luc015.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-letusc-luc015_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/luc015.c">
-                                            <pre><code class="language-c">/* Given three points (x1, y1), (x2, y2), and (x3, y3),
-write a program to check if the three poins fall on one straight line. */
-/* Author - Amit Dutta, Date - 1st OCT, 2025 */
-/* Let Us C, Chap- 3, Page - 53, Qn No.: f(f) */
-
-#include &lt;stdio.h&gt;
-#include &lt;math.h&gt;
-#define EPSILON 0.0001
-// Define a small tolerance value (EPSILON) for safe floating-point comparison
-// This is critical because of minor rounding errors in computer arithmetic.
-int main()
-{
-    double x1, x2, x3, y1, y2, y3, area;
-    printf(&quot;Enter the point A(x1, y1) : &quot;);
-    scanf(&quot;%lf %lf&quot;, &amp;x1, &amp;y1);
-    printf(&quot;Enter the point B(x2, y2) : &quot;);
-    scanf(&quot;%lf %lf&quot;, &amp;x2, &amp;y2);
-    printf(&quot;Enter the point C(x3, y3) : &quot;);
-    scanf(&quot;%lf %lf&quot;, &amp;x3, &amp;y3);
-    area = 0.5 * ((x1 * (y2 - y3)) + (x2 * (y3 - y1)) + (x3 * (y1 - y2)));
-    if (fabs(area) &lt; EPSILON) // abs() for integer, fabs() for float, double
-        printf(&quot;\nA(%g, %g), B(%g, %g) and C(%g, %g) points fall on one straight line.&quot;, x1, y1, x2, y2, x3, y3);
-    else
-        printf(&quot;\nA(%g, %g), B(%g, %g) and C(%g, %g) points doesn&#x27;t fall on one straight line.&quot;, x1, y1, x2, y2, x3, y3);
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">luc016.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/luc016.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-letusc-luc016_c', 'luc016.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-letusc-luc016_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/luc016.c">
-                                            <pre><code class="language-c">/* Given the coordiantes (x, y) of center of a circle and its radius,
-write a program that will determine whether a point lies inside the circle,
-on the circle or outside the circle. (Hint : Use sqrt() and pow() functions.) */
-/* Author - Amit Dutta, Date - 1st OCT, 2025 */
-/* Let Us C, Chap- 3, Page - 53, Qn No.: f(g) */
-
-#include &lt;stdio.h&gt;
-#include &lt;math.h&gt;
-// Define a small tolerance value (EPSILON) for reliable floating-point comparison
-#define EPSILON 0.0001
-
-int main()
-{
-    double h, k;
-    double R;
-    double x, y;
-    double distance_sq;
-    printf(&quot;Enter the center coordinates (h, k) : &quot;);
-    scanf(&quot;%lf %lf&quot;, &amp;h, &amp;k);
-    printf(&quot;Enter the radius (R) : &quot;);
-    scanf(&quot;%lf&quot;, &amp;R);
-    printf(&quot;Enter the point P coordinates (x, y) : &quot;);
-    scanf(&quot;%lf %lf&quot;, &amp;x, &amp;y);
-    distance_sq = pow(x - h, 2) + pow(y - k, 2);
-    double radius_sq = R * R;
-    // Case 1: On the circle (D^2 = R^2) - Use EPSILON for safety!
-    if (fabs(distance_sq - radius_sq) &lt; EPSILON)
-    {
-        printf(&quot;The point P(%g, %g) lies ON THE CIRCLE.\n&quot;, x, y);
-    }
-    // Case 2: Inside the circle (D^2 &lt; R^2)
-    else if (distance_sq &lt; radius_sq)
-    {
-        printf(&quot;The point P(%g, %g) lies INSIDE THE CIRCLE.\n&quot;, x, y);
-    }
-    // Case 3: Outside the circle (D^2 &gt; R^2)
-    else
-    {
-        printf(&quot;The point P(%g, %g) lies OUTSIDE THE CIRCLE.\n&quot;, x, y);
-    }
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">luc017.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/luc017.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-letusc-luc017_c', 'luc017.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-letusc-luc017_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/luc017.c">
-                                            <pre><code class="language-c">/* Given a point (x, y), write a program to find out if it lies on X-axis, Y-axis or origin. */
-/* Author - Amit Dutta, Date - 1st OCT, 2025 */
-/* Let Us C, Chap- 3, Page - 53, Qn No.: f(h) */
-
-#include &lt;stdio.h&gt;
-#include &lt;math.h&gt;
-#define EPSILON 0.00001
-
-int main()
-{
-    double x, y;
-    printf(&quot;Enter the point P(x, y) : &quot;);
-    scanf(&quot;%lf %lf&quot;, &amp;x, &amp;y);
-    if (fabs(x) &lt; EPSILON &amp;&amp; fabs(y) &lt; EPSILON)
-        printf(&quot;\nPoint P(%g, %g) lies on the origin.&quot;, x, y);
-    else if (fabs(x) &lt; EPSILON)
-        printf(&quot;\nPoint P(%g, %g) lies on the Y-Axis.&quot;, x, y);
-    else if (fabs(y) &lt; EPSILON)
-        printf(&quot;\nPoint P(%G, %g) lies on the X-Axis.&quot;, x, y);
-    else
-        printf(&quot;\nThe point P(%g, %g) lies in a QUADRANT (not on an axis or the origin).&quot;, x, y);
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">luc018-logic.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/luc018-logic.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-letusc-luc018-logic_c', 'luc018-logic.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-letusc-luc018-logic_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/luc018-logic.c">
-                                            <pre><code class="language-c">/* According to Gregorian calender, it was Monday on the date 01/01/01.
-Write a program to find out what is the day on 1st January of any input year. */
-/* Author - Amit Dutta, Date - 1st OCT, 2025 */
-/* Let Us C, Chap- 3, Page - 53, Qn No.: f(i) */
-
-#include &lt;stdio.h&gt;
-
-/**
- * @brief Determines if a given year is a leap year.
- * * The rule: A year is a leap year if it is divisible by 4, UNLESS it is 
- * divisible by 100 but NOT by 400.
- * * @param year The year to check.
- * @return 1 if it is a leap year, 0 otherwise.
- */
-int is_leap(int year) {
-    // Check if divisible by 400 OR (divisible by 4 AND not divisible by 100)
-    if ((year % 400 == 0) || (year % 4 == 0 &amp;&amp; year % 100 != 0)) {
-        return 1;
-    }
-    return 0;
-}
-
-/**
- * @brief Calculates the day of the week for January 1st of the given year.
- * * The base date is 01/01/01, which was a Monday (index 1).
- * * Day Mapping: 0:Sunday, 1:Monday, 2:Tuesday, 3:Wednesday, 4:Thursday, 5:Friday, 6:Saturday
- */
-int main() {
-    long long year; // Use long long for year input if years far in the future/past are tested
-    int i;
-    long long total_days = 0;
-    int day_index;
-    
-    // Day names array for output
-    const char *day_names[] = {&quot;Sunday&quot;, &quot;Monday&quot;, &quot;Tuesday&quot;, &quot;Wednesday&quot;, &quot;Thursday&quot;, &quot;Friday&quot;, &quot;Saturday&quot;};
-
-    printf(&quot;Enter the year (e.g., 2025): &quot;);
-    if (scanf(&quot;%lld&quot;, &amp;year) != 1 || year &lt; 1) {
-        printf(&quot;Invalid year input. Please enter a positive integer year (&gt;= 1).\n&quot;);
-        return 1;
-    }
-
-    // --- Core Logic: Calculate Total Days ---
-    
-    // We only need to consider the years that have *passed* before the target year.
-    // So, we count days from the end of year 0 up to the end of year (year - 1).
-    int years_passed = year - 1;
-    
-    // 1. Calculate the number of leap days up to the end of year (year - 1)
-    // Formula based on Gregorian calendar rules for years Y-1:
-    // (Y-1)/4 - (Y-1)/100 + (Y-1)/400
-    long long leap_years = years_passed / 4 - years_passed / 100 + years_passed / 400;
-
-    // 2. Total days = (Number of years * 365) + (Number of leap years)
-    // Note: The loop method (below) is more intuitive but the formula is faster.
-    // We will use the direct formula for efficiency.
-    total_days = years_passed * 365 + leap_years;
-
-    // --- Alternate Loop Method (for conceptual simplicity) ---
-    /*
-    for (i = 1; i &lt; year; i++) {
-        total_days += 365;
-        if (is_leap(i)) {
-            total_days += 1; // Add 1 for the leap day
-        }
-    }
-    */
-    
-    // --- Determine the Day of the Week ---
-    
-    // Since 01/01/01 was Monday (index 1), we use the following setup:
-    // Index 1 corresponds to Monday.
-    // The calculation gives the number of days *past* the Monday start (01/01/01).
-    // The modulo operation gives the remainder (0-6).
-    
-    // 0 days elapsed (Year 1): total_days=0. (0 + 1) % 7 = 1 (Monday). Correct.
-    // 365 days elapsed (Year 2): total_days=365. (365 + 1) % 7 = 2 (Tuesday). Correct. (365 mod 7 = 1, 1+1 = 2)
-    
-    day_index = (total_days + 1) % 7;
-    
-    // Correct the Day Index to match the array (0:Sun, 1:Mon, ..., 6:Sat)
-    // The +1 adjusts for the Monday starting point (index 1).
-    
-    printf(&quot;\nOn January 1st, %lld, the day was: **%s**.\n&quot;, year, day_names[day_index]);
-
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">luc018.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/luc018.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-letusc-luc018_c', 'luc018.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-letusc-luc018_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/luc018.c">
-                                            <pre><code class="language-c">/* According to Gregorian calender, it was Monday on the date 01/01/01.
-if any year is input through the keyboard write a program to find out
-what is the day on 1st January of this year. */
-/* Author - Amit Dutta, Date - 1st OCT, 2025 */
-/* Let Us C, Chap- 3, Page - 53, Qn No.: f(i) */
-
-#include &lt;stdio.h&gt;
-
-int is_leap(int year) {
-    if ((year % 400 == 0) || (year % 4 == 0 &amp;&amp; year % 100 != 0)) {
-        return 1;
-    }
-    return 0;
-}
-
-int main() {
-    long long year; // long long for year input if years far in the future/past are tested
-    int i;
-    long long total_days = 0;
-    int day_index;
-    
-    // Day names array for output
-    const char *day_names[] = {&quot;Sunday&quot;, &quot;Monday&quot;, &quot;Tuesday&quot;, &quot;Wednesday&quot;, &quot;Thursday&quot;, &quot;Friday&quot;, &quot;Saturday&quot;};
-
-    printf(&quot;Enter the year (e.g., 2025): &quot;);
-    if (scanf(&quot;%lld&quot;, &amp;year) != 1 || year &lt; 1) {
-        printf(&quot;Invalid year input. Please enter a positive integer year (&gt;= 1).\n&quot;);
-        return 1;
-    }
-    int years_passed = year - 1;
-    long long leap_years = years_passed / 4 - years_passed / 100 + years_passed / 400;
-    total_days = years_passed * 365 + leap_years;
-    day_index = (total_days + 1) % 7;
-    printf(&quot;\nOn January 1st, %lld, the day was: %s.\n&quot;, year, day_names[day_index]);
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">luc019.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/luc019.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-letusc-luc019_c', 'luc019.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-letusc-luc019_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/luc019.c">
-                                            <pre><code class="language-c">/* If the length of three sides of a triangle are entered through the
-keyboard, write a program to check whether the triangle is an isosceles,
-an equilateral, a scalene or a right-angled triangle. */
-/* Author - Amit Dutta, Date - 3rd OCT, 2025 */
-/* Let Us C, Chap- 4, Page - 71, Qn No.: D(a) */
-
-#include &lt;stdio.h&gt;
-#include &lt;math.h&gt;
-
-#define EPSILON 0.000001
-/* EPSILON is used to compare double values for approximate equality,
-mitigating floating-point precision errors. */
-
-int main()
-{
-    double side1, side2, side3;
-    printf(&quot;Please enter the length of three side of the triangle : &quot;);
-    scanf(&quot;%lf %lf %lf&quot;, &amp;side1, &amp;side2, &amp;side3);
-    if (side1 &lt; 1 || side2 &lt; 1 || side3 &lt; 1)
-    {
-        printf(&quot;\nLength of a side of triangle should be a positive integer.&quot;);
-        return 1;
-    }
-    if (side1 + side2 &lt; side3 || side1 + side3 &lt; side2 || side2 + side3 &lt; side1)
-    {
-        printf(&quot;\nEntered triangle is not VALID.&quot;);
-        return 1;
-    }
-    // isosceles check
-    if (side1 == side2 || side2 == side3 || side3 == side1)
-        printf(&quot;\nEntered triangle is a ISOSCELES triangle.&quot;);
-    else
-        printf(&quot;\nEntered triangle is NOT a ISOSCELES triangle.&quot;);
-    // equilateral check
-    if (side1 == side2 &amp;&amp; side2 == side3)
-        printf(&quot;\nEntered triangle is a EQUILATERAL triangle.&quot;);
-    else
-        printf(&quot;\nEntered triangle is NOT a EQUILATERAL triangle.&quot;);
-    // scalene check
-    if (side1 != side2 &amp;&amp; side2 != side3)
-        printf(&quot;\nEntered triangle is a SCALENE triangle.&quot;);
-    else
-        printf(&quot;\nEntered triangle is NOT a SCALENE triangle.&quot;);
-    // right-angle check
-    if (fabs(((side1 * side1) + (side2 * side2)) - (side3 * side3)) &lt; EPSILON ||
-        fabs(((side2 * side2) + (side3 * side3)) - (side1 * side1)) &lt; EPSILON ||
-        fabs(((side3 * side3) + (side1 * side1)) - (side2 * side2)) &lt; EPSILON)
-        printf(&quot;\nEntered triangle is a RIGHT-ANGLED triangle.&quot;);
-    else
-        printf(&quot;\nEntered triangle is NOT a RIGHT-ANGLED triangle.&quot;);
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">luc020.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/luc020.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-letusc-luc020_c', 'luc020.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-letusc-luc020_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/luc020.c">
-                                            <pre><code class="language-c">/* In digital world colors are specified in Red-Green-Blue (RGB) format,
-with values of R, G, B varying on an integer scale from 0 to 255. In print
-publishing the colors are mentioned in Cyan-Magenta-Yellow-Black (CMYK) format,
-with values of C, M, Y, and K varying on a real scale from 0.0 to 1.0.
-Write a program that converts RGB color to CMYK color as per the following formulae:
-    White   = Max(Red/255, Green/255, Blue/255)
-    Cyan    = (White-Red/255) / White
-    Magenta = (White-Green/255) / White
-    Yellow  = (White-Blue/255) / White
-    Black   = 1 - White
-Note that if the RGB values are all 0, then the CMY values are all 0 and the K value is 1. */
-/* Author - Amit Dutta, Date - 4th OCT, 2025 */
-/* Let Us C, Chap- 4, Page - 71, Qn No.: D(b) */
-
-#include &lt;stdio.h&gt;
-
-// declaring function
-double get_white(double red, double green, double blue)
-{
-    double max;
-    max = red / 255;
-    if (max &lt; (green / 255))
-        max = green / 255;
-    if (max &lt; (blue / 255))
-        max = blue / 255;
-    return max;
-}
-
-int main()
-{
-    double r, g, b, w, c = 0, m = 0, y = 0, k = 0;
-    printf(&quot;Enter the RGB color code in &#x27;R G B&#x27; format : &quot;);
-    scanf(&quot;%lf %lf %lf&quot;, &amp;r, &amp;g, &amp;b);
-
-    // checking for invalid input (negetive input)
-    if (r &lt; 0 || g &lt; 0 || b &lt; 0)
-    {
-        printf(&quot;\nRGB color code can not be a negetive number.&quot;);
-        return 1;
-    }
-
-    // checking for invalid input (out of range color code)
-    if (r &gt; 255 || g &gt; 255 || b &gt; 255)
-    {
-        printf(&quot;\nRGB color code can be maximum (255, 255, 255).&quot;);
-        return 1;
-    }
-
-    // converting RGB color code to CMYK color code
-    if (r == 0 &amp;&amp; g == 0 &amp;&amp; b == 0)
-        k = 1;
-    else
-    {
-        w = get_white(r, g, b);
-        c = (w - (r / 255)) / w;
-        m = (w - (g / 255)) / w;
-        y = (w - (b / 255)) / w;
-        k = 1 - w;
-    }
-
-    printf(&quot;\nRGB color (%g, %g, %g) equivalent to CMYK color (%g, %g, %g, %g).&quot;, r, g, b, c, m, y, k);
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">luc021.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/luc021.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-letusc-luc021_c', 'luc021.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-letusc-luc021_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/luc021.c">
-                                            <pre><code class="language-c">/* A certain grade of steel is graded according to the following conditions:
-    (i) Hardness must be greater than 50
-    (ii) Carbon content must be less than 0.7
-    (iii) Tensile strength must be greater than 5600
-
-The grades are as follows:
-    Grade is 10 if all three conditions are met
-    Grade is 9 if conditions (i) and (ii) are met
-    Grade is 8 if conditions (ii) and (iii) are met
-    Grade is 7 if conditions (i) and (iii) are met
-    Grade is 6 if only one condition is met
-    Grade is 5 if none of the conditions are met
-
-Write a program, which will require the user to give values of hardness,
-carbon content and tensile strength of the steel under consideration and output
-the grade of the steel. */
-
-/* Author - Amit Dutta, Date - 4th OCT, 2025 */
-/* Let Us C, Chap- 4, Page - 71, Qn No.: D(c) */
-
-#include &lt;stdio.h&gt;
-int main()
-{
-    double hardness, carbon_content, tensile_strength;
-    printf(&quot;Enter the details of the steel below - \n&quot;);
-    printf(&quot;1. Hardness         : &quot;);
-    scanf(&quot;%lf&quot;, &amp;hardness);
-    printf(&quot;2. Carbon Content   : &quot;);
-    scanf(&quot;%lf&quot;, &amp;carbon_content);
-    printf(&quot;3. Tensile Strength : &quot;);
-    scanf(&quot;%lf&quot;, &amp;tensile_strength);
-
-    // storing how many conditions are met as boolean result
-    int condition_met, condition1, condition2, condition3;
-    condition1 = hardness &gt; 50;
-    condition2 = carbon_content &lt; 0.7;
-    condition3 = tensile_strength &gt; 5600;
-    condition_met = condition1 + condition2 + condition3;
-
-    // now grading according the result
-    int grade;
-    if (condition_met == 3)
-        grade = 10;
-    else if (condition_met == 2)
-    {
-        if (condition1 &amp;&amp; condition2)
-            grade = 9;
-        else if (condition2 &amp;&amp; condition3)
-            grade = 8;
-        else if (condition1 &amp;&amp; condition3)
-            grade = 7;
-    }
-    else if (condition_met == 1)
-        grade = 6;
-    else
-        grade = 5;
-
-    // printing the result
-    printf(&quot;\n------------- Result -------------&quot;);
-    printf(&quot;\n1. Hardness         : Condition %s&quot;, condition1 ? &quot;MET&quot; : &quot;DID NOT MET&quot;);
-    printf(&quot;\n2. Carbon Content   : Condition %s&quot;, condition2 ? &quot;MET&quot; : &quot;DID NOT MET&quot;);
-    printf(&quot;\n3. Tensile Strength : Condition %s&quot;, condition3 ? &quot;MET&quot; : &quot;DID NOT MET&quot;);
-    printf(&quot;\nTotal Condition Met : %d&quot;, condition_met);
-    printf(&quot;\n\nGrade : %d\n\n&quot;, grade);
-    return 0;
-}
-
-/* I did not used this long variable names. I used very short just the first letter of the word. 
-After writting the whole program, I just renamed the valiables. This is possible in Visual Stdio Code. */</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">luc022.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/luc022.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-letusc-luc022_c', 'luc022.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-letusc-luc022_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/luc022.c">
-                                            <pre><code class="language-c">/* The Body Mass Index (BMI) is defined as ratio of  weight of the
-person (in Kilograms) to square of the height (in meters).
-Write a program that receives weight and height, calculate the BMI, and reports
-the BMI catagory as per the following table.
-    BMI Catagory            BMI
-    Starvation              &lt; 15
-    Anorexic                15.1 to 17.5
-    Underweight             17.6 to 18.5
-    Ideal                   18.6 to 24.9
-    Overweight              25 to 25.9
-    Obese                   30 to 39.9
-    Morbidly Obese          &gt;= 40
-*/
-/* Author - Amit Dutta, Date - 4th OCT, 2025 */
-/* Let Us C, Chap- 4, Page - 72, Qn No.: D(d) */
-
-#include &lt;stdio.h&gt;
-
-int main()
-{
-    double weight, height, bmi;
-    printf(&quot;Enter your Weight (in Kilograms) and Height (in Meters) : &quot;);
-    scanf(&quot;%lf %lf&quot;, &amp;weight, &amp;height);
-    bmi = weight / (height * height);
-    printf(&quot;\nCalculated BMI : %g&quot;, bmi);
-    if (bmi &lt; 15)
-        printf(&quot;\nBMI Catagory : Starvation&quot;);
-    else if (bmi &gt;= 15.1 &amp;&amp; bmi &lt;= 17.5)
-        printf(&quot;\nBMI Catagory : Anorexic&quot;);
-    else if (bmi &gt;= 17.6 &amp;&amp; bmi &lt;= 18.5)
-        printf(&quot;\nBMI Catagory : Underweight&quot;);
-    else if (bmi &gt;= 18.6 &amp;&amp; bmi &lt;= 24.9)
-        printf(&quot;\nBMI Catagory : Ideal&quot;);
-    else if (bmi &gt;= 25 &amp;&amp; bmi &lt;= 25.9)
-        printf(&quot;\nBMI Catagory : Overweight&quot;);
-    else if (bmi &gt;= 30 &amp;&amp; bmi &lt;= 39.9)
-        printf(&quot;\nBMI Catagory : Obese&quot;);
-    else if (bmi &gt;= 40)
-        printf(&quot;\nBMI Catagory : Morbidly Obese&quot;);
-    else
-        printf(&quot;\nBMI Catagory : Unclassified&quot;);
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">luc023.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/luc023.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-letusc-luc023_c', 'luc023.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-letusc-luc023_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/luc023.c">
-                                            <pre><code class="language-c">/* Using conditional operators determine :
-    (1) Whether the character entered through the keyboard is a
-        lower case alphabet or not.
-    (2) Whether a character entered through the keyboard is a special
-        symbol or not. */
-/* Author - Amit Dutta, Date - 5th OCT, 2025 */
-/* Let Us C, Chap- 4, Page - 72, Qn No.: E(a) */
-
-#include &lt;stdio.h&gt;
-int main()
-{
-    char inp;
-    printf(&quot;Enter the character : &quot;);
-    scanf(&quot;%c&quot;, &amp;inp);
-    printf(&quot;\nInput Character &#x27;%c&#x27; is %s a LOWER CASE ALPHABET.&quot;, inp, 
-        (inp &gt;= &#x27;a&#x27; &amp;&amp; inp &lt;= &#x27;z&#x27;) ? &quot;&quot; : &quot;NOT&quot;);
-    printf(&quot;\nInput Character &#x27;%c&#x27; is %s a SPECIAL SYMBOL.&quot;, inp, 
-        (inp &gt;= &#x27;a&#x27; &amp;&amp; inp &lt;= &#x27;z&#x27; || inp &gt;= &#x27;A&#x27; &amp;&amp; inp &lt;= &#x27;Z&#x27; 
-            || inp &gt;= &#x27;0&#x27; &amp;&amp; inp &lt;= &#x27;9&#x27;) ? &quot;NOT&quot; : &quot;&quot;);
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">luc024.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/luc024.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-letusc-luc024_c', 'luc024.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-letusc-luc024_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/luc024.c">
-                                            <pre><code class="language-c">/* Write a program using conditional operators to determine whether
-a year entered through the keyboard is a leap year or not. */
-/* Author - Amit Dutta, Date - 5th OCT, 2025 */
-/* Let Us C, Chap- 4, Page - 72, Qn No.: E(b) */
-
-#include &lt;stdio.h&gt;
-int main()
-{
-    int year;
-    printf(&quot;Enter the year : &quot;);
-    scanf(&quot;%d&quot;, &amp;year);
-    printf(&quot;\nYear %d is %s a Leapyear.&quot;, year, (year % 400 == 0 || year % 4 == 0 &amp;&amp; year % 100 != 0) ? &quot;&quot; : &quot;NOT&quot;);
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">luc025.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/luc025.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-letusc-luc025_c', 'luc025.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-letusc-luc025_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/luc025.c">
-                                            <pre><code class="language-c">/* Write a program to find the greates of the three numbers entered
-through the keyboard. Use conditional operators. */
-/* Author - Amit Dutta, Date - 6th OCT, 2025 */
-/* Let Us C, Chap- 4, Page - 72, Qn No.: E(c) */
-
-#include &lt;stdio.h&gt;
-int main()
-{
-    double num1, num2, num3, max;
-    printf(&quot;Enter three number : &quot;);
-    scanf(&quot;%lf %lf %lf&quot;, &amp;num1, &amp;num2, &amp;num3);
-    printf(&quot;\nGreatest of the three number &#x27;%g&#x27;, &#x27;%g&#x27; and &#x27;%g&#x27; is : &#x27;%g&#x27;&quot;, num1, num2, num3, 
-        (num1 &gt; num2 &amp;&amp; num1 &gt; num3) ? num1 : ((num2 &gt; num1 &amp;&amp; num2 &gt; num3) ? num2 : num3));
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">luc026.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/luc026.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-letusc-luc026_c', 'luc026.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-letusc-luc026_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/luc026.c">
-                                            <pre><code class="language-c">/* Write a program to recieve value of an angle in degreesand check
-whether sum of squares of sine and cosine of this angle is equal to 1. */
-/* Author - Amit Dutta, Date - 6th OCT, 2025 */
-/* Let Us C, Chap- 4, Page - 73, Qn No.: E(d) */
-
-#include &lt;stdio.h&gt;
-#include &lt;math.h&gt;
-#define EPSILON 0.0000001
-
-int main()
-{
-    double angle, result;
-    printf(&quot;Enter the angle value in degree : &quot;);
-    // checking if the input is other than number.
-    if(scanf(&quot;%lf&quot;, &amp;angle) != 1) {
-        printf(&quot;\nPlease enter a number.&quot;);
-        return 1;
-    }
-    angle = angle * (M_PI / 180); // converting degree to radian
-    result = pow(sin(angle), 2) + pow(cos(angle), 2);
-    (fabs(result - 1.0) &lt; EPSILON) ?
-    printf(&quot;\nsum of squares of sine and cosine of this angle is equal to 1.&quot;) :
-    printf(&quot;\nsum of squares of sine and cosine of this angle is NOT equal to 1.&quot;);
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">luc027.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/luc027.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-letusc-luc027_c', 'luc027.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-letusc-luc027_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/luc027.c">
-                                            <pre><code class="language-c">/* Rewrite the folowing program using conditional operations
-    #include&lt;stdio.h&gt;
-    int main()
-    {
-        float sal;
-        printf(&quot;Enter the salary&quot;);
-        scanf(&quot;%f&quot;, &amp;sal);
-        if(sal &gt;= 25000 &amp;&amp; sal &lt;= 40000)
-            printf(&quot;Manager\n&quot;);
-        else
-            if(sal &gt;= 15000 &amp;&amp; sal &lt; 25000)
-                printf(&quot;Accountant\n&quot;);
-            else
-                printf(&quot;Clerk\n&quot;);
-        return 0;
-    }
-*/
-/* Author - Amit Dutta, Date - 6th OCT, 2025 */
-/* Let Us C, Chap- 4, Page - 73, Qn No.: E(e) */
-
-#include &lt;stdio.h&gt;
-int main()
-{
-    float sal;
-    printf(&quot;Enter the salary&quot;);
-    scanf(&quot;%f&quot;, &amp;sal);
-    (sal &gt;= 25000 &amp;&amp; sal &lt;= 40000) ? printf(&quot;Manager\n&quot;) : 
-    ((sal &gt;= 15000 &amp;&amp; sal &lt; 25000) ? printf(&quot;Accountant\n&quot;) : printf(&quot;Clerk\n&quot;));
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">luc028.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/luc028.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-letusc-luc028_c', 'luc028.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-letusc-luc028_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/luc028.c">
-                                            <pre><code class="language-c">/* Write a program to print all the ASCII values and their equivalent
-characters using a while loop. The ASCII may vary from 0 to 255. */
-/* Author - Amit Dutta, Date - 7th OCT, 2025 */
-/* Let Us C, Chap- 5, Page - 87, Qn No.: B(a) */
-
-#include &lt;stdio.h&gt;
-int main()
-{
-    int i = 0;
-    printf(&quot;ASCII Value\tCharacter&quot;);
-    printf(&quot;\n-----------\t---------\n&quot;);
-    while (i &lt;= 255)
-    {
-        printf(&quot;%d.\t%c\n\n&quot;, i, i);
-        i++;
-    }
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">luc029.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/luc029.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-letusc-luc029_c', 'luc029.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-letusc-luc029_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/luc029.c">
-                                            <pre><code class="language-c">/* Write a program to print out all Armstrong numbers between 100
-and 500. If sum of cubes of each digit of the number is equal to the
-number itself, then the number is called an Armstrong number. For
-example, 153 = (1 * 1 * 1) + (5 * 5 * 5) + (3 * 3 * 3) */
-/* Author - Amit Dutta, Date - 7th OCT, 2025 */
-/* Let Us C, Chap- 5, Page - 87, Qn No.: B(b) */
-
-#include &lt;stdio.h&gt;
-#include &lt;math.h&gt;
-int main()
-{
-    int num = 100, temp1, temp2, res;
-    printf(&quot;Armstrong numbers between 100 and 500 :&quot;);
-    while (num &lt;= 500)
-    {
-        temp1 = num;
-        res = 0;
-        while (temp1 != 0)
-        {
-            temp2 = temp1 % 10;
-            res = res + pow(temp2, 3);
-            temp1 = temp1 / 10;
-        }
-        if (num == res)
-            printf(&quot;  %d&quot;, num);
-        num++;
-    }
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">luc030.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/luc030.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-letusc-luc030_c', 'luc030.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-letusc-luc030_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/luc030.c">
-                                            <pre><code class="language-c">/* Write a program for a matchstick game being played between the
-computer and a user. Your program should ensure that the computer
-always wins. Rules for the game are as follows :
-    - There are 21 matchsticks.
-    - The computer asks the player to pick 1, 2, 3, or 4 matchsticks.
-    - After the person picks, the computer does its picking.
-    - Whoever is forced to pick up the last matchstick loses the game.
-*/
-/* Author - Amit Dutta, Date - 8th OCT, 2025 */
-/* Let Us C, Chap- 5, Page - 87, Qn No.: B(c) */
-
-/* My Plan: The total number of matchsticks is 21. To guarantee a win,
-the computer ensures that after its turn, the number of remaining
-matchsticks is always a multiple of 5 plus 1 (i.e., 16, 11, 6, 1).
-This is achieved by making the sum of the player&#x27;s pick and the
-computer&#x27;s pick equal to 5 in each round. This forces the player
-to pick the final matchstick. */
-
-#include &lt;stdio.h&gt;
-int main()
-{
-    int remaining_matchsticks = 21, player_pick, computer_pick;
-    printf(&quot;                 --- Matchstick Game ---\n&quot;);
-    printf(&quot;Rules: There are 21 matchsticks. You can pick 1, 2, 3, or 4.\n&quot;);
-    printf(&quot;Whoever is forced to pick the last matchstick loses the game.\n&quot;);
-    while (remaining_matchsticks &gt; 1)
-    {
-        // game start
-        printf(&quot;\n--------------------------&quot;);
-        printf(&quot;\nRemaining Matchsticks : %d&quot;, remaining_matchsticks);
-
-        // player pick and checking input is valid or not
-        printf(&quot;\nYour turn: Pick 1, 2, 3, or 4 matchsticks: &quot;);
-        if (scanf(&quot;%d&quot;, &amp;player_pick) != 1)
-        {
-            printf(&quot;\n\tPlease enter a number.&quot;);
-            while (getchar() != &#x27;\n&#x27;)
-                ;
-            continue;
-        }
-
-        // checking player pick is valid or not
-        if (player_pick &lt; 1 || player_pick &gt; 4)
-        {
-            printf(&quot;\n\tPlease enter a number among 1, 2, 3 and 4.&quot;);
-            while (getchar() != &#x27;\n&#x27;)
-                ;
-            continue;
-        }
-
-        if (player_pick &gt; remaining_matchsticks)
-        {
-            printf(&quot;\nInvalid choice! There are not enough matchsticks left.&quot;);
-            while (getchar() != &#x27;\n&#x27;)
-                ;
-            continue;
-        }
-
-        // computer_picks
-        computer_pick = 5 - player_pick;
-        printf(&quot;\ncomputer_picks : %d&quot;, computer_pick);
-
-        // remaining matchsticks
-        remaining_matchsticks = remaining_matchsticks - (player_pick + computer_pick);
-    }
-
-    // game over
-    printf(&quot;\n----------------------------------\n&quot;);
-    printf(&quot;Only 1 matchstick is left.\n&quot;);
-    printf(&quot;You are forced to pick the last matchstick. You lose!\n&quot;);
-    printf(&quot;The computer wins.\n&quot;);
-
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">luc031-logic.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/luc031-logic.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-letusc-luc031-logic_c', 'luc031-logic.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-letusc-luc031-logic_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/luc031-logic.c">
-                                            <pre><code class="language-c">/* Write a program to enter numbers till the user wants. At the end it 
-should display the count of positive, negative and zeros entered. */
-/* Author - Amit Dutta, Date - 8th OCT, 2025 */
-/* Let Us C, Chap- 5, Page - 87, Qn No.: B(d) */
-
-/*
- * DETAILED PROGRAM PLAN:
- * 1. INITIALIZATION: Set three counters (positive_count, negative_count, zero_count) to zero.
- * 2. INPUT LOOP: Start an infinite loop to continuously request user input.
- * 3. READ INPUT: Use fgets() to read the user&#x27;s input as a generic string (char array). 
- * This allows the program to accept multi-digit numbers (e.g., &quot;-500&quot;) or the command (&#x27;n&#x27;).
- * 4. TERMINATION CHECK: Immediately check if the input string is exactly &quot;n&quot; using strcmp(). 
- * If true, the user wants to quit, so break the loop.
- * 5. VALIDATION &amp; CONVERSION: If the input is not &quot;n&quot;, use sscanf() to safely attempt to convert 
- * the string into an integer.
- * 6. COUNTING LOGIC: If sscanf() successfully reads an integer (sscanf returns 1):
- * - If the number is &gt; 0, increment positive_count.
- * - If the number is &lt; 0, increment negative_count.
- * - If the number is == 0, increment zero_count.
- * 7. ERROR HANDLING: If the input is neither &quot;n&quot; nor a valid number (sscanf returns 0), 
- * inform the user of invalid input and continue the loop.
- * 8. FINAL DISPLAY: After the loop terminates, print the final totals for positive, negative, and zero counts.
- */
-
-#include &lt;stdio.h&gt;
-#include &lt;stdlib.h&gt; // for strtol
-#include &lt;string.h&gt; // for strcmp
-
-// Maximum size of the input line
-#define MAX_INPUT_LEN 15 
-
-int main() {
-    // Initialize counters
-    int positive_count = 0;
-    int negative_count = 0;
-    int zero_count = 0;
-
-    // Buffer to store the user&#x27;s input as a string (e.g., &quot;123&quot;, &quot;-50&quot;, or &quot;n&quot;)
-    char input_buffer[MAX_INPUT_LEN];
-    int number;
-
-    printf(&quot;--- Number Analyzer ---\n&quot;);
-    printf(&quot;Enter numbers one by one. Type &#x27;n&#x27; and press Enter to finish.\n\n&quot;);
-
-    // Loop until the user enters &#x27;n&#x27;
-    while (1) {
-        printf(&quot;Enter number or &#x27;n&#x27;: &quot;);
-
-        // Read the entire line of input into the buffer
-        if (fgets(input_buffer, MAX_INPUT_LEN, stdin) == NULL) {
-            // Handle EOF (end of file) or reading error
-            break;
-        }
-
-        // Remove the trailing newline character from the input_buffer
-        // The last character will be &#x27;\n&#x27; if the input was shorter than MAX_INPUT_LEN
-        size_t len = strlen(input_buffer);
-        if (len &gt; 0 &amp;&amp; input_buffer[len - 1] == &#x27;\n&#x27;) {
-            input_buffer[len - 1] = &#x27;\0&#x27;;
-        }
-
-        // 1. Check for the termination condition
-        if (strcmp(input_buffer, &quot;n&quot;) == 0) {
-            printf(&quot;\n&#x27;n&#x27; received. Stopping input...\n&quot;);
-            break; // Exit the while loop
-        }
-
-        // 2. Attempt to convert the input string to an integer
-        // sscanf attempts to read the string according to the format &quot;%d&quot; (decimal integer)
-        // It returns 1 if a number was successfully read.
-        int conversions = sscanf(input_buffer, &quot;%d&quot;, &amp;number);
-
-        if (conversions == 1) {
-            // Conversion was successful, now check the number&#x27;s sign
-            if (number &gt; 0) {
-                positive_count++;
-            } else if (number &lt; 0) {
-                negative_count++;
-            } else {
-                zero_count++;
-            }
-            printf(&quot;  -&gt; Number recorded: %d\n&quot;, number);
-        } else {
-            // Conversion failed. The input was neither &#x27;n&#x27; nor a valid integer.
-            printf(&quot;  -&gt; Invalid input. Please enter a valid number or &#x27;n&#x27;.\n&quot;);
-        }
-    }
-
-    // Display the final results
-    printf(&quot;\n====================================\n&quot;);
-    printf(&quot;   Analysis Complete\n&quot;);
-    printf(&quot;====================================\n&quot;);
-    printf(&quot;Positive numbers entered: %d\n&quot;, positive_count);
-    printf(&quot;Negative numbers entered: %d\n&quot;, negative_count);
-    printf(&quot;Zeroes entered:           %d\n&quot;, zero_count);
-    printf(&quot;Total numbers recorded:   %d\n&quot;, positive_count + negative_count + zero_count);
-    printf(&quot;====================================\n&quot;);
-
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">luc031.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/luc031.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-letusc-luc031_c', 'luc031.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-letusc-luc031_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/luc031.c">
-                                            <pre><code class="language-c">/* Write a program to enter numbers till the user wants. At the end it
-should display the count of positive, negative and zeros entered. */
-/* Author - Amit Dutta, Date - 8th OCT, 2025 */
-/* Let Us C, Chap- 5, Page - 87, Qn No.: B(d) */
-
-#include &lt;stdio.h&gt;
-int main()
-{
-    int choice = 1, num, positive_count = 0, negative_count = 0, zero_count = 0;
-    while (choice == 1)
-    {
-        printf(&quot;\nEnter the number (Type any character and press Enter to finish.) : &quot;);
-        choice = scanf(&quot;%d&quot;, &amp;num); // Checking whether the user has input any characters
-        if (choice == 1)
-        {
-            printf(&quot;Number recorded : %d&quot;, num);
-            if (num &lt; 0)
-                negative_count++;
-            else if (num &gt; 0)
-                positive_count++;
-            else if (num == 0)
-                zero_count++;
-        }
-        else 
-        {
-        // If the user inputs any characters, then choice = 0, it means he doesn&#x27;t want to give any more input;
-            choice = 0;
-            printf(&quot;\nCharacter received. Stopping input...\n&quot;);
-        }
-    }
-    // Display the final results
-    printf(&quot;\n====================================\n&quot;);
-    printf(&quot;   Analysis Complete\n&quot;);
-    printf(&quot;====================================\n&quot;);
-    printf(&quot;Positive numbers entered: %d\n&quot;, positive_count);
-    printf(&quot;Negative numbers entered: %d\n&quot;, negative_count);
-    printf(&quot;Zeroes entered:           %d\n&quot;, zero_count);
-    printf(&quot;Total numbers recorded:   %d\n&quot;, positive_count + negative_count + zero_count);
-    printf(&quot;====================================\n&quot;);
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">luc032.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/luc032.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-letusc-luc032_c', 'luc032.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-letusc-luc032_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/luc032.c">
-                                            <pre><code class="language-c">/* Write a program to recieve an integer and find its octal equivalent.
-(Hint : To obtain octal equivalent of an integer, Divide it continuously
-by 8 till dividend does not become zero, then write the remainders
-obtained in reverse derection.) */
-/* Author - Amit Dutta, Date - 8th OCT, 2025 */
-/* Let Us C, Chap- 5, Page - 87, Qn No.: B(e) */
-
-// using array
-
-#include &lt;stdio.h&gt;
-int main()
-{
-    int octal[20], decimal, index = 0, temp, rem;
-    printf(&quot;Enter the decimal number : &quot;);
-    scanf(&quot;%d&quot;, &amp;decimal);
-    temp = decimal;
-    while (temp != 0)
-    {
-        rem = temp % 8;
-        temp = temp / 8;
-        octal[index] = rem;
-        index++;
-    }
-    printf(&quot;\nDeciaml %d to octal : &quot;, decimal);
-    while ((index - 1) &gt;= 0)
-    {
-        printf(&quot;%d&quot;, octal[index - 1]);
-        index--;
-    }
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">luc033.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/luc033.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-letusc-luc033_c', 'luc033.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-letusc-luc033_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/luc033.c">
-                                            <pre><code class="language-c">/* Write a program to find the range of a set of numbers entered
-through the keyboard. Range is the difference between the smallest
-and biggest number in the list. */
-/* Author - Amit Dutta, Date - 8th OCT, 2025 */
-/* Let Us C, Chap- 5, Page - 87, Qn No.: B(f) */
-
-#include &lt;stdio.h&gt;
-int main()
-{
-    int choice = 1, set_of_numbers[30], num, index = -1;
-    while (choice == 1)
-    {
-        printf(&quot;\nEnter the number (Type any character and press Enter to finish.) : &quot;);
-        choice = scanf(&quot;%d&quot;, &amp;num); // Checking whether the user has input any characters
-        if (choice != 1)
-        {
-            // If the user inputs any characters, then choice = 0, it means he doesn&#x27;t want to give any more input;
-            choice = 0;
-            printf(&quot;\nCharacter received. Stopping input...\n&quot;);
-            break;
-        }
-        index++;
-        set_of_numbers[index] = num;
-    }
-    int max = set_of_numbers[0], min = set_of_numbers[0];
-    while (index &gt;= 0)
-    {
-        if (max &lt; set_of_numbers[index])
-            max = set_of_numbers[index];
-        if (min &gt; set_of_numbers[index])
-            min = set_of_numbers[index];
-        index--;
-    }
-    int range = max - min;
-    printf(&quot;\nBiggest number in the set  : %d&quot;, max);
-    printf(&quot;\nSmallest number in the set : %d&quot;, min);
-    printf(&quot;\nRange : %d&quot;, range);
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">luc034.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/luc034.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-letusc-luc034_c', 'luc034.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-letusc-luc034_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/luc034.c">
-                                            <pre><code class="language-c">/* Write a program to print the multiplication table of the number
-entered by the user. The table should get displayed in the following
-form :
-    29 * 1 = 29
-    29 * 2 = 58
-*/
-/* Author - Amit Dutta, Date - 20th OCT, 2025 */
-/* Let Us C, Chap- 6, Page - 105, Qn No.: B(a) */
-
-#include &lt;stdio.h&gt;
-int main()
-{
-    int i, num, res;
-    printf(&quot;Enter the number : &quot;);
-    scanf(&quot;%d&quot;, &amp;num);
-    printf(&quot;\n--- Multiplication Table ---\n&quot;);
-    for (i = 1; i &lt;= 10; i++)
-        printf(&quot;%d * %d = %d\n&quot;, num, i, num * i);
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">luc035.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/luc035.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-letusc-luc035_c', 'luc035.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-letusc-luc035_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/luc035.c">
-                                            <pre><code class="language-c">/* According to a study, the approximate level of intelligence of a
-person can be calculated using the following formula.
-    i = 2 + (y + 0.5x)
-write a program that will produce a table of values of i, y and x,
-where y varies from 1 to 6, and, for each value of y, x varies from
-5.5 to 12.5 in steps of 0.5 */
-/* Author - Amit Dutta, Date - 20th OCT, 2025 */
-/* Let Us C, Chap- 6, Page - 105, Qn No.: B(b) */
-
-#include &lt;stdio.h&gt;
-int main()
-{
-    double y, x;
-    printf(&quot;\n--- Approximate Intelligence ---\n&quot;);
-    for (y = 1; y &lt;= 6; y++)
-    {
-        printf(&quot;\tY = %d\n&quot;, y);
-        for (x = 5.5; x &lt;= 12.5; x += 0.5)
-        {
-            printf(&quot;Y: %g\t X: %.2g\t I: %g\n&quot;, y, x, 2 + (y + 0.5 * x));
-        }
-        printf(&quot;-----------------------\n&quot;);
-    }
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">luc036.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/luc036.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-letusc-luc036_c', 'luc036.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-letusc-luc036_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/luc036.c">
-                                            <pre><code class="language-c">/* When interest compounds q times per year at an annual rate of
-r % for n years, the principle p compounds to an amount a as per
-the following formula
-    a = p (1 + r / q) ^ nq
-Write a program to read 10 sets of p, r, n &amp; q and calculate the
-corresponding as&#x27; */
-/* Author - Amit Dutta, Date - 20th OCT, 2025 */
-/* Let Us C, Chap- 6, Page - 106, Qn No.: B(c) */
-
-// DEVELOPMENT STATUS: This implementation is currently untested. 
-// Please report any functional defects or errors by submitting a GitHub issue &quot;https://github.com/notamitgamer/bsc/issues&quot; with the updated code.
-
-#include &lt;stdio.h&gt;
-#include &lt;math.h&gt;
-int main()
-{
-    double interest, principalAmount, interestRate, timeInYears, compoundFactor, totalAmount;
-    int index;
-    for (index = 1; index &lt;= 10; index++)
-    {
-        printf(&quot;Enter Principle amount : &quot;);
-        scanf(&quot;%lf&quot;, &amp;principalAmount);
-        printf(&quot;Enter Rate of Interest : &quot;);
-        scanf(&quot;%lf&quot;, &amp;interestRate);
-        interestRate *= 0.01;
-        printf(&quot;Enter the Time (Years) : &quot;);
-        scanf(&quot;%lf&quot;, &amp;timeInYears);
-        printf(&quot;Compound count in one year : &quot;);
-        scanf(&quot;%lf&quot;, &amp;compoundFactor);
-        totalAmount = (principalAmount * pow((1 + interestRate / compoundFactor), (timeInYears * compoundFactor)));
-        interest = totalAmount - principalAmount;
-        printf(&quot;\nInterest : %.2f\nTotal Amount : %.2f\n\n&quot;, interest, totalAmount);
-    }
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">luc037.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/luc037.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-letusc-luc037_c', 'luc037.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-letusc-luc037_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/luc037.c">
-                                            <pre><code class="language-c">/* The natural logarithm can be approximated by the following series.
-    (x-1)/x + 1/2 ((x-1)/x)^2 + 1/2 ((x-1)/x)^3 + 1/2 ((x-1)/x)^4 + ...
-If x is input through the keyboard, write a program to calculate the
-sum of the first seven terms of this series. */
-/* Author - Amit Dutta, Date - 21st OCT, 2025 */
-/* Let Us C, Chap- 6, Page - 106, Qn No.: B(d) */
-
-#include &lt;stdio.h&gt;
-#include &lt;math.h&gt;
-
-double series(double x) // made this fn only for fun, making a fn was not necessary
-{
-    double result = (x - 1) / x;
-    int i;
-    for (i = 2; i &lt;= 7; i++)
-    {
-        result += 0.5 * pow(((x - 1) / x), i);
-    }
-    return result;
-}
-
-int main()
-{
-    double x;
-    printf(&quot;Enter the value for x : &quot;);
-    scanf(&quot;%lf&quot;, &amp;x);
-    printf(&quot;\nResult : %g&quot;, series(x));
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">luc038.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/luc038.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-letusc-luc038_c', 'luc038.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-letusc-luc038_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/luc038.c">
-                                            <pre><code class="language-c">/* Write a program to generate all Pythagorean Triplets with slide
-length less than or equal to 30. */
-/* Author - Amit Dutta, Date - 21st OCT, 2025 */
-/* Let Us C, Chap- 6, Page - 106, Qn No.: B(e) */
-
-#include &lt;stdio.h&gt;
-#include &lt;math.h&gt;
-
-int main()
-{
-    int a, b, c;
-    printf(&quot;Pythagorean Triplets with slide length less than or equal to 30 : \n&quot;);
-    for (a = 1; a &lt;= 30; a++)
-    {
-        for (b = a; b &lt;= 30; b++)
-        {
-            int c_square = a * a + b * b;
-            for (c = b + 1; c &lt;= 30; c++)
-            {
-                if (c * c == c_square)
-                    printf(&quot;(%d, %d, %d)\n&quot;, a, b, c);
-            }
-        }
-    }
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">luc039.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/luc039.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-letusc-luc039_c', 'luc039.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-letusc-luc039_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/luc039.c">
-                                            <pre><code class="language-c">/* Population of a town today is 100000. The population has increased
-steadily at the rate of 10% per year for last 10 years. Write a
-program to determine the population at the end of each year in the
-last decade. */
-/* Author - Amit Dutta, Date - 21st OCT, 2025 */
-/* Let Us C, Chap- 6, Page - 106, Qn No.: B(f) */
-
-#include &lt;stdio.h&gt;
-int main()
-{
-    int i, population = 100000;
-    printf(&quot;Present year : %d\n&quot;, population);
-    for (i = 1; i &lt;= 10; i++)
-    {
-        population /= 1.10;
-        printf(&quot;%d year ago : %d\n&quot;, i, population);
-    }
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">luc040-logic.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/luc040-logic.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-letusc-luc040-logic_c', 'luc040-logic.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-letusc-luc040-logic_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/luc040-logic.c">
-                                            <pre><code class="language-c">/* Ramanujan number (1729) is the smallest number that can be
-expressed as sum of cubes in two different ways - 1729 can be
-expressed as 1^3 + 12^3 and 9^3 + 10^3. Write a program to print all such
-numbers up to a reasonable limit. */
-/* Author - Amit Dutta, Date - 22nd - 23rd OCT, 2025 */
-/* Let Us C, Chap- 6, Page - 106, Qn No.: B(g) */
-
-// 1. INCLUDE SECTION
-#include &lt;stdio.h&gt; // Includes the standard input/output library, necessary for printf()
-
-// 2. CONSTANT DEFINITIONS (MACROS)
-// These define fixed values we can easily use and change later.
-#define LIMIT 100000 // The maximum number we want to search up to.
-// The maximum base value (a, b, c, or d) we need to check.
-// Since 47^3 is greater than 100,000, checking bases up to 47 covers the LIMIT.
-#define MAX_BASE_VAL 47
-
-// 3. MAIN FUNCTION
-int main()
-{
-    // 4. VARIABLE DECLARATION
-
-    // sum1 and sum2 store the results of a^3 + b^3 and c^3 + d^3.
-    // We use &#x27;long long&#x27; because cubes (like 47^3) are large and can exceed
-    // the capacity of a standard &#x27;int&#x27;, preventing errors.
-    long long sum1, sum2;
-
-    int count = 0; // Counter to keep track of how many Ramanujan numbers we find.
-
-    // This flag is used to optimize the search. If we find the second way (c^3 + d^3)
-    // to make sum1, we set this to 1 and immediately stop the inner loops.
-    int found_match;
-
-    // Print introductory message to the user.
-    printf(&quot;Ramanujan Number Finder (a^3 + b^3 = c^3 + d^3)\n&quot;);
-    printf(&quot;Searching up to %d (Max base value is %d)\n&quot;, LIMIT, MAX_BASE_VAL);
-    printf(&quot;---------------------------------------------------\n&quot;);
-
-    // 5. OUTER LOOPS: Establishing the FIRST SUM (a^3 + b^3 = sum1)
-
-    // Loop for &#x27;a&#x27; (the smaller base of the first pair)
-    for (int a = 1; a &lt;= MAX_BASE_VAL; a++)
-    {
-
-        // Loop for &#x27;b&#x27; (the larger base of the first pair)
-        // We start &#x27;b&#x27; at &#x27;a + 1&#x27; to enforce the rule a &lt; b.
-        // This prevents us from checking redundant pairs like (1, 12) and (12, 1).
-        for (int b = a + 1; b &lt;= MAX_BASE_VAL; b++)
-        {
-
-            // Calculate the first sum: sum1 = a^3 + b^3
-            // (long long) is a cast to ensure the math is done using the &#x27;long long&#x27; type.
-            sum1 = (long long)a * a * a + (long long)b * b * b;
-
-            // Optimization 1: Check if the sum exceeds the global limit.
-            if (sum1 &gt; LIMIT)
-            {
-                // Since &#x27;b&#x27; is increasing, any further increase will also be over the limit.
-                // We stop the &#x27;b&#x27; loop and move to the next &#x27;a&#x27;.
-                break;
-            }
-
-            // Reset the flag for every new sum1.
-            // We start searching for a second way for this new &#x27;sum1&#x27;, so we reset the flag to 0.
-            found_match = 0;
-
-            // 6. INNER LOOPS: Searching for the SECOND SUM (c^3 + d^3 = sum2)
-
-            // Loop for &#x27;c&#x27; (the smaller base of the second pair)
-            // We start &#x27;c&#x27; at &#x27;a + 1&#x27; to enforce the rule a &lt; c.
-            // This ensures the two pairs {(a, b) and (c, d)} are truly distinct (e.g., 1729 = 1^3 + 12^3 and 9^3 + 10^3).
-            for (int c = a + 1; c &lt;= MAX_BASE_VAL; c++)
-            {
-
-                // Optimization 2: Check the flag to exit the &#x27;c&#x27; loop early.
-                if (found_match)
-                {
-                    // If we already found the second way (c, d) in a previous iteration of &#x27;c&#x27;, stop searching and move to the next (a, b) pair.
-                    break;
-                }
-
-                // Loop for &#x27;d&#x27; (the larger base of the second pair)
-                // We start &#x27;d&#x27; at &#x27;c + 1&#x27; to enforce c &lt; d.
-                for (int d = c + 1; d &lt;= MAX_BASE_VAL; d++)
-                {
-
-                    // Calculate the second sum: sum2 = c^3 + d^3
-                    sum2 = (long long)c * c * c + (long long)d * d * d;
-
-                    // Optimization 3: Check if the second sum has passed the first sum.
-                    if (sum2 &gt; sum1)
-                    {
-                        // Since &#x27;d&#x27; is increasing, any further increase will also be greater than sum1.
-                        // We stop the &#x27;d&#x27; loop and move to the next &#x27;c&#x27;.
-                        break;
-                    }
-
-                    // 7. CONDITION CHECK: Have we found a Ramanujan number?
-                    // Check if the two sums are equal.
-                    if (sum1 == sum2)
-                    {
-                        count++; // Increment the counter
-
-                        // Print the result in the required format.
-                        printf(&quot;[%d] %lld = %d^3 + %d^3 = %d^3 + %d^3\n&quot;,
-                               count, sum1, a, b, c, d);
-
-                        // Set the flag to 1, confirming we found the second way.
-                        found_match = 1;
-
-                        // Stop the &#x27;d&#x27; loop immediately, as we found the required second pair.
-                        break;
-                    }
-                }
-                // If found_match was set to 1, the &#x27;break&#x27; in the d loop will execute,
-                // then the &#x27;if (found_match) break;&#x27; in the c loop will execute,
-                // and the program will move to the next (a, b) pair.
-            }
-        }
-    }
-
-    // 8. CONCLUSION
-    printf(&quot;---------------------------------------------------\n&quot;);
-    printf(&quot;Search complete. Found %d Ramanujan-type numbers.\n&quot;, count);
-
-    return 0; // Standard way to indicate successful program execution.
-}
-</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">luc040.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/luc040.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-letusc-luc040_c', 'luc040.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-letusc-luc040_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/luc040.c">
-                                            <pre><code class="language-c">/* Ramanujan number (1729) is the smallest number that can be
-expressed as sum of cubes in two different ways - 1729 can be
-expressed as 1^3 + 12^3 and 9^3 + 10^3. Write a program to print all such
-numbers up to a reasonable limit. */
-/* Author - Amit Dutta, Date - 22nd - 23rd OCT, 2025 */
-/* Let Us C, Chap- 6, Page - 106, Qn No.: B(g) */
-
-#include &lt;stdio.h&gt;
-
-#define limit 100000
-#define max_base 47
-
-int main()
-{
-
-    long long sum1, sum2;
-    int count = 0;
-
-    printf(&quot;Ramanujan numbers : \n&quot;);
-
-    int found_match;
-
-    for (int a = 1; a &lt;= max_base; a++)
-    {
-        for (int b = a + 1; b &lt;= max_base; b++)
-        {
-            sum1 = (long long)a * a * a + (long long)b * b * b;
-            if (sum1 &gt; limit)
-            {
-                break;
-            }
-
-            found_match = 0;
-
-            for (int c = a + 1; c &lt;= max_base; c++)
-            {
-                if (found_match)
-                {
-                    break;
-                }
-                for (int d = c + 1; d &lt;= max_base; d++)
-                {
-                    sum2 = (long long)c * c * c + (long long)d * d * d;
-                    if (sum2 &gt; sum1)
-                    {
-                        break;
-                    }
-                    if (sum1 == sum2)
-                    {
-                        count++;
-                        printf(&quot;(%d.) %lld = %d^3 + %d^3 = %d^3 + %d^3\n&quot;, count, sum1, a, b, c, d);
-
-                        found_match = 1;
-                        break;
-                    }
-                }
-            }
-        }
-    }
-
-    printf(&quot;-------------------------------\n&quot;);
-    printf(&quot;Search complete.&quot;);
-
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">luc041.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/luc041.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-letusc-luc041_c', 'luc041.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-letusc-luc041_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/luc041.c">
-                                            <pre><code class="language-c">/* Write a program to print 24 hours of day with suitable suffixes like
-AM, PM, Noon and Midnight. */
-/* Author - Amit Dutta, Date - 23rd OCT, 2025 */
-/* Let Us C, Chap- 6, Page - 106, Qn No.: B(h) */
-
-#include &lt;stdio.h&gt;
-int main()
-{
-    int hour, temp;
-    printf(&quot;Time \tSuffix\n&quot;);
-    for (int hour = 0; hour &lt;= 23; hour++)
-    {
-        if (hour == 0)
-            printf(&quot;12:00\tAM (Midnight)\n&quot;);
-        else if (hour == 12)
-            printf(&quot;12:00\tPM (Noon)\n&quot;);
-        else if (hour &gt;= 1 &amp;&amp; hour &lt;= 11)
-            printf(&quot;%02d:00\tAM\n&quot;, hour);
-        else if (hour &gt;= 13 &amp;&amp; hour &lt;= 23)
-            printf(&quot;%02d:00\tPM\n&quot;, hour - 12);
-    }
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">luc042.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/luc042.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-letusc-luc042_c', 'luc042.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-letusc-luc042_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/luc042.c">
-                                            <pre><code class="language-c">/* Write a program to produce the following output :
-            1
-        2       3
-    4       5       6
-7       8       9       10
-*/
-
-/* Author - Amit Dutta, Date - 23rd OCT, 2025 */
-/* Let Us C, Chap- 6, Page - 106, Qn No.: B(i) */
-
-#include &lt;stdio.h&gt;
-int main()
-{
-    int starter = 1;
-    int tab = 3;
-    printf(&quot;The pattern : \n&quot;);
-    for (int i = 1; i &lt;= 4; i++)
-    {
-        int count = 0;
-        for (int k = 1; k &lt;= tab; k++)
-        {
-            printf(&quot;    &quot;);
-        }
-        tab = tab - 1;
-        for (int j = starter; j &lt;= 10; j++)
-        {
-            if (count &gt;= i)
-            {
-                break;
-            }
-            printf(&quot;%d       &quot;, j);
-            count++;
-            starter++;
-        }
-        printf(&quot;\n&quot;);
-    }
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">luc043.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/luc043.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-letusc-luc043_c', 'luc043.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-letusc-luc043_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/luc043.c">
-                                            <pre><code class="language-c">/* Write a program to find the grace marks for a student using switch.
-The user should enter the class obtained by the student and the
-number of subjects he has failed in. Use the following logic.
-    - If the student gets first class and he fails in more than 3
-    subjects, he does not get any grace, Otherwise, he gets a grace
-    of 5 marks per subject.
-    - If the student gets second class and he fails in more than 2
-    subjects, he does not get any grace. Otherwise, he gets a grace
-    of 4 marks per subject.
-    - If the student gets third class and he fails in more than 1
-    subject, then he does not get any grace. Otherwise, he gets a
-    grace of 5 marks.
-*/
-/* Author - Amit Dutta, Date - 28th OCT, 2025 */
-/* Let Us C, Chap- 7, Page - 125, Qn No.: C */
-
-#include &lt;stdio.h&gt;
-
-int main()
-{
-    int studentClass, failedSubjectCount, graceMarks = 0;
-    printf(&quot;Class obtained by the student (Enter 1 for First Class, 2 for Second Class, 3 for Third Class): &quot;);
-    scanf(&quot;%d&quot;, &amp;studentClass);
-    printf(&quot;Failed Subject Count: &quot;);
-    scanf(&quot;%d&quot;, &amp;failedSubjectCount);
-
-    if (failedSubjectCount &lt; 0) {
-        printf(&quot;\nFailed subject count cannot be negative.&quot;);
-        return 1;
-    }
-
-    switch (studentClass)
-    {
-    case 1:
-        if (failedSubjectCount &lt;= 3)
-        {
-            graceMarks += 5 * failedSubjectCount;
-        }
-        break;
-
-    case 2:
-        if (failedSubjectCount &lt;= 2)
-        {
-            graceMarks += 4 * failedSubjectCount;
-        }
-        break;
-
-    case 3:
-        if (failedSubjectCount &lt;= 1)
-        {
-            graceMarks += 5 * failedSubjectCount;
-        }
-        break;
-
-    default:
-        printf(&quot;\nWrong Choice.&quot;);
-        return 1;
-    }
-
-    printf(&quot;\nStudent will get %d grace marks.&quot;, graceMarks);
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">luc044.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/luc044.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-letusc-luc044_c', 'luc044.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-letusc-luc044_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/luc044.c">
-                                            <pre><code class="language-c">/* Any year is entered through the keyboard. Write a function to
-determine whether the year is aleap year or not. */
-/* Author - Amit Dutta, Date - 17th November, 2025 */
-/* Let Us C, Chap- 8, Page - 144, Qn No.: C(1) */
-
-#include &lt;stdio.h&gt;
-
-int leapYear(int);
-
-int leapYear(int year)
-{
-    if ((year % 400 == 0) || ((year % 4 == 0) &amp;&amp; (year % 100 != 0)))
-        return 1;
-    else
-        return 0;
-}
-
-int main()
-{
-    int year;
-    printf(&quot;Enter the year : &quot;);
-    scanf(&quot;%d&quot;, &amp;year);
-    if (leapYear(year))
-        printf(&quot;\nYear %d is a Leap Year.&quot;, year);
-    else
-        printf(&quot;\nYear %d is not a Leap Year.&quot;, year);
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">luc045.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/luc045.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-letusc-luc045_c', 'luc045.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-letusc-luc045_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/luc045.c">
-                                            <pre><code class="language-c">/* A position integer is entered through the keyboard. Write a Function
-to obtain the prime factors of this number. 
-For example, prime factors of 24 are 2, 2, 2 and 3, whereas prime 
-factors of 35 are 5 and 7
-*/
-/* Author - Amit Dutta, Date - 17th November, 2025 */
-/* Let Us C, Chap- 8, Page - 144, Qn No.: C(2) */
-
-#include &lt;stdio.h&gt;
-#include &lt;math.h&gt;
-
-void findPrimeFactors(int n)
-{
-    int temp_n = n;
-
-    if (temp_n == 1)
-    {
-        printf(&quot;Prime factors of %d are: None.\n&quot;, n);
-        return;
-    }
-
-    printf(&quot;Prime factors of %d are:&quot;, n);
-
-    while (temp_n % 2 == 0)
-    {
-        printf(&quot; %d&quot;, 2);
-        temp_n = temp_n / 2;
-    }
-
-    for (int i = 3; i &lt;= (int)sqrt(temp_n); i = i + 2)
-    {
-        while (temp_n % i == 0)
-        {
-            printf(&quot; %d&quot;, i);
-            temp_n = temp_n / i;
-        }
-    }
-
-    if (temp_n &gt; 2)
-    {
-        printf(&quot; %d&quot;, temp_n);
-    }
-
-    printf(&quot;\n&quot;);
-}
-
-int main()
-{
-    int n;
-    printf(&quot;Enter a positive integer to get the prime factors: &quot;);
-    if (scanf(&quot;%d&quot;, &amp;n) != 1)
-    {
-        printf(&quot;Error: Invalid input. Please enter an integer.\n&quot;);
-        return 1;
-    }
-    if (n &lt;= 0)
-    {
-        printf(&quot;Error: Please enter a POSITIVE integer.\n&quot;);
-        return 1;
-    }
-    findPrimeFactors(n);
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">luc046.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/luc046.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-letusc-luc046_c', 'luc046.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-letusc-luc046_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/luc046.c">
-                                            <pre><code class="language-c">/* Given three variables x, y, z, write a function to circularly shift their
-values to right. In other words, if x = 5, y = 8, z = 10, after circular
-shift y = 5, z = 8, x = 10. cal the function with variables a, b, c to
-circularly shift values.
-*/
-/* Author - Amit Dutta, Date - 24th November, 2025 */
-/* Let Us C, Chap- 9, Page - 163, Qn No.: C(a) */
-
-#include &lt;stdio.h&gt;
-
-void circularShift(int *, int *, int *);
-
-int main()
-{
-    int x = 5, y = 8, z = 10;
-
-    printf(&quot;--- Before Shift ---\n&quot;);
-    printf(&quot;x: %d, y: %d, z: %d&quot;, x, y, z);
-
-    circularShift(&amp;x, &amp;y, &amp;z);
-
-    printf(&quot;\n--- After Shift ---\n&quot;);
-    printf(&quot;x: %d, y: %d, z: %d&quot;, x, y, z);
-
-    return 0;
-}
-
-void circularShift(int *x, int *y, int *z)
-{
-    int temp = *z;
-    *z = *y;
-    *y = *x;
-    *x = temp;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">luc047.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/luc047.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-letusc-luc047_c', 'luc047.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-letusc-luc047_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/luc047.c">
-                                            <pre><code class="language-c">/* Define a function that receives weight of a commodity in kilograms
-and returns the equivalent weight in Grams, Tons and pounds. Call
-this fuction from main() and print the results in main()
-*/
-/* Author - Amit Dutta, Date - 24th November, 2025 */
-/* Let Us C, Chap- 9, Page - 163, Qn No.: C(b) */
-
-#include &lt;stdio.h&gt;
-
-void convertWeight(double, double *, double *, double *);
-
-int main()
-{
-    double weightGram, weightPound, weightKG, weightTON;
-    printf(&quot;Enter the weight of the comodity in Kilogram(s): &quot;);
-    scanf(&quot;%lf&quot;, &amp;weightKG);
-
-    convertWeight(weightKG, &amp;weightGram, &amp;weightPound, &amp;weightTON);
-    printf(&quot;\n%g Kilogram(s) = %.04f Gram(s)&quot;
-           &quot;\n%g Kilogram(s) = %.04f Pound(s)&quot;
-           &quot;\n%g Kilogram(s) = %.04f TON(s)&quot;,
-           weightKG, weightGram, weightKG, weightPound, weightKG, weightTON);
-    return 0;
-}
-
-void convertWeight(double weightKG, double *weightGram, double *weightPound, double *weightTON)
-{
-    *weightGram = weightKG * 1000.0;
-    *weightPound = weightKG * 2.2046226218;
-    *weightTON = weightKG / 1000.0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">luc048.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/luc048.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-letusc-luc048_c', 'luc048.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-letusc-luc048_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/luc048.c">
-                                            <pre><code class="language-c">/* Define a function to compute the distance between two points and
-use it to develop another function that will compute the area of the
-triangle whose vertices are A(x1, y1), B(x2, y2), and C(x3, y3). Use
-these functions to develop a function which returns a value 1 if the
-point (x, y) lines inside the triangle ABC, otherwise returns a value
-0. Would you get any advantage if you develop these functions to
-work on call by reference principle?
-*/
-/* Author - Amit Dutta, Date - 25th November, 2025 */
-/* Let Us C, Chap- 9 (Pointers), Page - 163, Qn No.: C(c) */
-
-#include &lt;stdio.h&gt;
-#include &lt;math.h&gt;
-#include &lt;ctype.h&gt;
-#include &lt;stdlib.h&gt;
-
-void distance(double, double, double, double, double *);
-void area(double, double, double, double, double, double, double *);
-int is_inside(double, double, double, double, double, double, double, double);
-
-int main()
-{
-
-    // Variables
-    double x, y, x1, x2, y1, y2, x3, y3, result_Distance, result_Area;
-    char choice;
-
-    /* ********** Requirement: 1 ********** */
-
-    // Calculate the length of the line segment between two points, P1(x1, y1) and P2(x2, y2).
-    // Function Used: distance()
-
-    printf(&quot;--- Compute the distance between two points ---\n\n&quot;);
-    printf(&quot;Enter the co-ordinates of Point 1 (Ex.: 5,6): &quot;);
-    scanf(&quot;%lf,%lf&quot;, &amp;x1, &amp;y1);
-    printf(&quot;Enter the co-ordinates of Point 2 (Ex.: 3,4): &quot;);
-    scanf(&quot;%lf,%lf&quot;, &amp;x2, &amp;y2);
-
-    distance(x1, y1, x2, y2, &amp;result_Distance);
-    printf(&quot;\nDistance between P1(%g, %g) and P2(%g, %g) = %g&quot;,
-           x1, y1, x2, y2, result_Distance);
-
-    /* ********** Requirement: 2 ********** */
-
-    // Calculate the area of a triangle ABC using its three vertices A(x1, y1), B(x2, y2), and C(x3, y3).
-    // Fuction Used: distance(), area()
-
-    printf(&quot;\n\n--- Compute the area of a triangle ABC ---\n\n&quot;);
-    printf(&quot;Enter the co-ordinates of Point A (Ex.: 5,6): &quot;);
-    scanf(&quot;%lf,%lf&quot;, &amp;x1, &amp;y1);
-    printf(&quot;Enter the co-ordinates of Point B (Ex.: 3,4): &quot;);
-    scanf(&quot;%lf,%lf&quot;, &amp;x2, &amp;y2);
-    printf(&quot;Enter the co-ordinates of Point C (Ex.: 6,7): &quot;);
-    scanf(&quot;%lf,%lf&quot;, &amp;x3, &amp;y3);
-
-    area(x1, y1, x2, y2, x3, y3, &amp;result_Area);
-    printf(&quot;\nArea of the A(%g, %g), B(%g, %g), C(%g, %g) = %g&quot;,
-           x1, y1, x2, y2, x3, y3, result_Area);
-
-    /* ********** Requirement: 3 ********** */
-
-    // Check if a test point P(x, y) lies strictly inside the triangle ABC.
-    // Function Used: distance(), area(), is_inside()
-
-    printf(&quot;\n\n--- Check if a test point P(x, y) lies strictly inside the triangle ABC ---\n\n&quot;);
-    printf(&quot;Do you wish to use previous entered triangle?&quot;
-           &quot;\nIf Yes, type &#x27;Y&#x27;; If No, type &#x27;N&#x27;: &quot;);
-    scanf(&quot; %c&quot;, &amp;choice);
-    choice = toupper(choice);
-    switch (choice)
-    {
-    case &#x27;Y&#x27;:
-        break;
-    case &#x27;N&#x27;:
-        printf(&quot;Enter the co-ordinates of Point A (Ex.: 5,6): &quot;);
-        scanf(&quot;%lf,%lf&quot;, &amp;x1, &amp;y1);
-        printf(&quot;Enter the co-ordinates of Point B (Ex.: 3,4): &quot;);
-        scanf(&quot;%lf,%lf&quot;, &amp;x2, &amp;y2);
-        printf(&quot;Enter the co-ordinates of Point C (Ex.: 6,7): &quot;);
-        scanf(&quot;%lf,%lf&quot;, &amp;x3, &amp;y3);
-        break;
-    default:
-        printf(&quot;\nYou entered invalid choice.&quot;);
-        break;
-    }
-    printf(&quot;Enter the co-ordinates of Test Point (Ex.: 3,5): &quot;);
-    scanf(&quot;%lf,%lf&quot;, &amp;x, &amp;y);
-
-    if (is_inside(x, y, x1, y1, x2, y2, x3, y3))
-        printf(&quot;\nTest Point (%g, %g) is inside ABC.&quot;, x, y);
-    else
-        printf(&quot;\nTest Point (%g, %g) is not inside ABC.&quot;, x, y);
-
-    /*  ANSWER TO THE QUESTION:
-    Qn.:
-        Would you get any advantage if you develop these functions to
-        work on call by reference principle?
-
-    Ans:
-        NO, there is no advantage, and moreover, that would be a disadvantage.
-        It introduces unnecessary dereferencing overhead for every operation,
-        Which is less efficient than reading the simple value copy supplied by Call by Value.
-    */
-
-    // End of Program
-    return 0;
-}
-
-void distance(double x1, double y1, double x2, double y2, double *result_Distance)
-{
-    *result_Distance = sqrt(pow((x2 - x1), 2) + pow((y2 - y1), 2));
-}
-
-void area(double x1, double y1, double x2, double y2, double x3, double y3, double *result_Area)
-{
-    double s, ab, bc, ac;
-
-    distance(x1, y1, x2, y2, &amp;ab);
-    distance(x2, y2, x3, y3, &amp;bc);
-    distance(x1, y1, x3, y3, &amp;ac);
-
-    s = (ab + bc + ac) / 2.0;
-    double area_sq = s * (s - ab) * (s - bc) * (s - ac);
-
-    if (area_sq &lt; 0)
-        // Handle cases where area_sq is slightly negative due to floating-point errors
-        *result_Area = 0.0;
-    else
-        *result_Area = sqrt(area_sq);
-}
-
-int is_inside(double x, double y, double x1, double y1, double x2, double y2, double x3, double y3)
-{
-    double area_ABC, area_PAB, area_PBC, area_PAC;
-
-    const double EPSILON = 0.000001;
-
-    area(x1, y1, x2, y2, x3, y3, &amp;area_ABC);
-    area(x, y, x1, y1, x2, y2, &amp;area_PAB);
-    area(x, y, x2, y2, x3, y3, &amp;area_PBC);
-    area(x, y, x1, y1, x3, y3, &amp;area_PAC);
-
-    double sum_of_sub_areas = area_PAB + area_PBC + area_PAC;
-
-    if (fabs(area_ABC - sum_of_sub_areas) &lt; EPSILON)
-        return 1;
-    else
-        return 0;
-}
-
-/*
-    *************** SAMPLE OUTPUT ***************
-
-PS G:\bsc\letusc&gt; ./*.exe
---- Compute the distance between two points ---
-
-Enter the co-ordinates of Point 1 (Ex.: 5,6): 1234.56,7890.12
-Enter the co-ordinates of Point 2 (Ex.: 3,4): 1234.56,7891.12
-
-Distance between P1(1234.56, 7890.12) and P2(1234.56, 7891.12) = 1
-
---- Compute the area of a triangle ABC ---
-
-Enter the co-ordinates of Point A (Ex.: 5,6): 100.10,200.20
-Enter the co-ordinates of Point B (Ex.: 3,4): 105.10,200.20
-Enter the co-ordinates of Point C (Ex.: 6,7): 100.10,205.20
-
-Area of the A(100.1, 200.2), B(105.1, 200.2), C(100.1, 205.2) = 12.5
-
---- Check if a test point P(x, y) lies strictly inside the triangle ABC ---
-
-Do you wish to use previous entered triangle?
-If Yes, type &#x27;Y&#x27;; If No, type &#x27;N&#x27;: y
-Enter the co-ordinates of Test Point (Ex.: 3,5): 101.10,201.20
-
-Test Point (101.1, 201.2) is inside ABC.
-
-*/</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">lucproblem001.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/lucproblem001.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-letusc-lucproblem001_c', 'lucproblem001.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-letusc-lucproblem001_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/lucproblem001.c">
-                                            <pre><code class="language-c">/* Consider a currency system in which there are notes of six denominations,
-namely, Rs. 1, Rs. 2, rs. 5, Rs. 10, Rs. 50, Rs. 100. If a sum
-of Rs. N is entered through the keyboard, Write a program to compute
-the smallest number of notes that will combine to give Rs. N. */
-/* Author - Amit Dutta, Date - 29th SEP, 2025 */
-/* Let Us C, Chap - 2, Page - 22, Problem 2.3 */
-
-#include &lt;stdio.h&gt;
-int main()
-{
-    int n, nonotes, temp;
-    printf(&quot;Enter the amount : &quot;);
-    scanf(&quot;%d&quot;, &amp;n);
-    if (n &lt; 1)
-    {
-        printf(&quot;\nAmount should be a positive integer.&quot;);
-        return 1;
-    }
-    temp = n;
-    nonotes = n / 100;
-    n = n % 100;
-    nonotes = nonotes + (n / 50);
-    n = n % 50;
-    nonotes = nonotes + (n / 10);
-    n = n % 10;
-    nonotes = nonotes + (n / 5);
-    n = n % 5;
-    nonotes = nonotes + (n / 2);
-    n = n % 2;
-    nonotes = nonotes + n;
-    printf(&quot;\nthe smallest number of notes that will combine to give Rs. %d : %d&quot;, temp, nonotes);
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">lucproblem002.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/lucproblem002.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-letusc-lucproblem002_c', 'lucproblem002.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-letusc-lucproblem002_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/lucproblem002.c">
-                                            <pre><code class="language-c">/* A year is entered through the keyboard, write a program to
-determine whether the year is leap or not. Use the logical operators
-&amp;&amp; and || . */
-/* Author - Amit Dutta, Date - 02th OCT, 2025 */
-/* Let Us C, Chap - 4, Page - 64, Problem 4.1 */
-
-#include &lt;stdio.h&gt;
-int main()
-{
-    int year;
-    printf(&quot;Enter year : &quot;);
-    scanf(&quot;%d&quot;, &amp;year);
-    if (year % 4 == 0 &amp;&amp; year &amp; 100 != 0 || year % 400 == 0)
-        printf(&quot;\nYear %d is a leapyear.&quot;, year);
-    else
-        printf(&quot;\nYear %d is not a leapyear.&quot;, year);
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">lucproblem003.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/lucproblem003.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-letusc-lucproblem003_c', 'lucproblem003.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-letusc-lucproblem003_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/lucproblem003.c">
-                                            <pre><code class="language-c">/* If a character is entered through the keyboard, Write a program
-to determine whether the character is a capital letter, a small case letter,
-a digit or a speacial symbol.
-The following table shows the range of ASCII values for various characters :
-    Characters              ASCII Values
-    A - Z                   65 - 90
-    a - z                   97 - 122
-    0 - 9                   48 - 57
-    special symbols         0 - 47, 58 - 64, 91 - 96, 123 - 127
-*/
-/* Author - Amit Dutta, Date - 02th OCT, 2025 */
-/* Let Us C, Chap - 4, Page - 65, Problem 4.2 */
-
-#include &lt;stdio.h&gt;
-int main()
-{
-    char inp;
-    printf(&quot;Enter one character : &quot;);
-    scanf(&quot; %c&quot;, &amp;inp);
-    if (inp &gt;= 64 &amp;&amp; inp &lt;= 90)
-        printf(&quot;\nInput &#x27;%c&#x27; is a CAPITAL LETTER.&quot;, inp);
-    if (inp &gt;= 97 &amp;&amp; inp &lt;= 122)
-        printf(&quot;\nInput &#x27;%c&#x27; is a SMALL CASE LETTER.&quot;, inp);
-    if (inp &gt;= 48 &amp;&amp; inp &lt;= 57)
-        printf(&quot;\nInput &#x27;%c&#x27; is a DIGIT.&quot;, inp);
-    if (inp &gt;= 0 &amp;&amp; inp &lt;= 47 || inp &gt;= 58 &amp;&amp; inp &lt;= 64 
-        || inp &gt;= 91 &amp;&amp; inp &lt;= 96 || inp &gt;= 123 &amp;&amp; inp &lt;= 127)
-        printf(&quot;\nInput &#x27;%c&#x27; is a SPECIAL SYMBOL.&quot;, inp);
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">lucproblem004.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/lucproblem004.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-letusc-lucproblem004_c', 'lucproblem004.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-letusc-lucproblem004_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/lucproblem004.c">
-                                            <pre><code class="language-c">/* If the lengths of three sides of a triangle are entered through the
-keyboard, write a program to check whether the triangle is valid or not.
-The triangle is valid if the sum of two sides is greater that the largest
-of the three sides. */
-/* Author - Amit Dutta, Date - 02th OCT, 2025 */
-/* Let Us C, Chap - 4, Page - 66, Problem 4.3 */
-
-#include &lt;stdio.h&gt;
-int main()
-{
-    double side1, side2, side3;
-    printf(&quot;Enter the length of side1, side2 and side3 of the triangle : &quot;);
-    scanf(&quot;%lf %lf %lf&quot;, &amp;side1, &amp;side2, &amp;side3);
-    if (side1 &lt;= 0 || side2 &lt;= 0 || side3 &lt;= 0)
-    {
-        printf(&quot;\nTriangle sides must be positive.\n&quot;);
-        return 1;
-    }
-    if ((side1 + side2 &gt; side3) &amp;&amp; (side1 + side3 &gt; side2) &amp;&amp; (side2 + side3 &gt; side1))
-    // Triangle Inequality Theorem
-        printf(&quot;\nThis triangle is valid.&quot;);
-    else
-        printf(&quot;\nThis triangle is not valid.&quot;);
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">lucproblem005.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/lucproblem005.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-letusc-lucproblem005_c', 'lucproblem005.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-letusc-lucproblem005_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/lucproblem005.c">
-                                            <pre><code class="language-c">/* Write a program to calculate overtime pay of 10 employees. Overtime is
-paid at the rate of Rs. 120.00 per hour for every hour worked above 40
-hours. Assume that employees do not work for fractional part of an hour. */
-/* ONLY WHILE LOOP ALLOWED */
-/* Author - Amit Dutta, Date - 07th OCT, 2025 */
-/* Let Us C, Chap - 5, Page - 83, Problem 5.1 */
-
-#include &lt;stdio.h&gt;
-#include &lt;conio.h&gt;
-int main()
-{
-    int working_hour, i = 1;
-    double pay;
-    while (i &lt;= 10)
-    {
-        printf(&quot;Enter the working hour for the employee no. %d : &quot;, i);
-        if (scanf(&quot;%d&quot;, &amp;working_hour) != 1)
-        {
-            printf(&quot;\n\tPlease enter a number as woking hour.\n\n&quot;);
-            while (getchar() != &#x27;\n&#x27;)
-                ;
-            // above line discard the input characters untill getchar() reaches the new line character.
-            /* if I do not discard the input, after &#x27;continue;&#x27; statement that input will be again taken 
-            by scanf (In the line 17). It will be a infinite loop of error. */
-            continue;
-        }
-        // checking overtime
-        if (working_hour &gt; 40)
-        {
-            pay = (working_hour - 40) * 120.00;
-            printf(&quot;\n\tOvertime working hours of Employee %d : %d&quot;, i, (working_hour - 40));
-            printf(&quot;\n\tPay of the overtime for Employee %d   : Rs. %.2f\n\n&quot;, i, pay);
-        }
-        else
-            printf(&quot;\n\tEmployee %d did not work any overtime.\n\n&quot;, i);
-        i++; // changing to next employee
-    }
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">lucproblem006.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/lucproblem006.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-letusc-lucproblem006_c', 'lucproblem006.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-letusc-lucproblem006_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/lucproblem006.c">
-                                            <pre><code class="language-c">/* Write a program to find the factorial value of any number entered
-through the keyboard. */
-/* Author - Amit Dutta, Date - 07th OCT, 2025 */
-/* Let Us C, Chap - 5, Page - 84, Problem 5.2 */
-
-#include &lt;stdio.h&gt;
-int main()
-{
-    int num, i = 1;
-    long long fact = 1;
-    printf(&quot;Enter the number : &quot;);
-    // checking if the input is valid or not
-    if (scanf(&quot;%d&quot;, &amp;num) != 1)
-    {
-        printf(&quot;\nPlease enter a number.&quot;);
-        return 1;
-    }
-    // result for the negetive input
-    if (num &lt; 0)
-    {
-        printf(&quot;\nFactorial of %d : Undefined&quot;, num);
-        return 1;
-    }
-    //  Hard codded result for input &#x27;0&#x27; (zero)
-    if (num == 0)
-    {
-        printf(&quot;\nFactorial of 0 : 1&quot;);
-        return 0;
-    }
-    // calculating result
-    while (i &lt;= num) {
-        fact = fact * i;
-        i++;
-    }
-    printf(&quot;\nFactorial of %d : %d&quot;, num, fact);
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">lucproblem007.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/lucproblem007.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-letusc-lucproblem007_c', 'lucproblem007.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-letusc-lucproblem007_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/lucproblem007.c">
-                                            <pre><code class="language-c">/* Two numbers are entered through the keyboard. Write a program to
-find the value of one number raised to the power of another */
-/* Author - Amit Dutta, Date - 07th OCT, 2025 */
-/* Let Us C, Chap - 5, Page - 84, Problem 5.3 */
-
-#include &lt;stdio.h&gt;
-int main()
-{
-    double num, result;
-    int power, i = 1;
-    printf(&quot;Enter the numbers in &#x27;num^power&#x27; format : &quot;);
-    // checking if the input is valid or not
-    if (scanf(&quot;%lf^%d&quot;, &amp;num, &amp;power) != 2)
-    {
-        printf(&quot;\nPlease enter numbers.&quot;);
-        return 1;
-    }
-     // result for the negetive input
-    if (power &lt; 0)
-    {
-        printf(&quot;\nPlease use a positive number as power.&quot;);
-        return 1;
-    }
-    //  Hard codded result for input &#x27;0&#x27; (zero)
-    if (power == 0)
-    {
-        printf(&quot;\n%g to the power of %d is : 1&quot;, num, power);
-        return 0;
-    }
-    result = num;
-    while (i &lt;= power - 1)
-    {
-        result = result * num;
-        i++;
-    }
-    printf(&quot;\n%g to the power of %d is : %g&quot;, num, power, result);
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">lucproblem008.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/lucproblem008.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-letusc-lucproblem008_c', 'lucproblem008.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-letusc-lucproblem008_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/lucproblem008.c">
-                                            <pre><code class="language-c">/* Write a problem to print all the prime numbers from 1 to 300. */
-/* Author - Amit Dutta, Date - 24th OCT, 2025 */
-/* Let Us C, Chap - 6, Page - 101, Problem 6.1 */
-
-// Method: Trial Division (Optimized to check up to sqrt(N))
-
-#include &lt;stdio.h&gt;
-#include &lt;math.h&gt;
-#include &lt;stdbool.h&gt;
-
-#define LIMIT 300
-
-int main()
-{
-    printf(&quot;Prime numbers from 1 to 300 :  2&quot;); // as 2 is the only even prime number
-    for (int i = 3; i &lt;= LIMIT; i += 2)  // skipping all other even number
-    {
-        int n = (int)sqrt(i);
-        bool prime = true;
-
-        for (int j = 3; j &lt;= n; j += 2)
-        // an odd number is only devisable by another odd number.
-        // so, skipping even number.
-        {
-            if (i % j == 0)
-            {
-                prime = false;
-                break;
-            }
-        }
-        if (prime)
-        {
-            printf(&quot;  %d&quot;, i);
-        }
-    }
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">lucproblem009.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/lucproblem009.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-letusc-lucproblem009_c', 'lucproblem009.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-letusc-lucproblem009_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/lucproblem009.c">
-                                            <pre><code class="language-c">/* Write a program to add first seven terms of the following series using a
-for loop.
-    1 / 1! + 2 / 2! + 3 / 3! + ...
-*/
-/* Author - Amit Dutta, Date - 24th OCT, 2025 */
-/* Let Us C, Chap - 6, Page - 102, Problem 6.2 */
-
-#include &lt;stdio.h&gt;
-#define N 7 // update N here
-
-int main()
-{
-    double sum = 0; int fact = 1;
-    for (int i = 1; i &lt;= N; i++)
-    {
-        fact *= i;
-        sum += (double)i / fact;
-    }
-    printf(&quot;Sum of the series : %g&quot;, sum);
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">lucproblem010-complex.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/lucproblem010-complex.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-letusc-lucproblem010-complex_c', 'lucproblem010-complex.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-letusc-lucproblem010-complex_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/lucproblem010-complex.c">
-                                            <pre><code class="language-c">/* Write a program to generate all combinations (permutations) of 1, 2 and 3
-   from 1-digit numbers up to 4-digit numbers using a main loop to control
-   the number of digits (1 to 3333).
-*/
-/* Author - Amit Dutta, Date - 24th OCT, 2025 */
-/* Let Us C, Chap - 6, Page - 103, Problem 6.3 */
-
-#include &lt;stdio.h&gt;
-
-// --- RECURSIVE FUNCTION TO ACHIEVE DYNAMIC NESTING ---
-// current_digit: The digit being placed in the current position (1, 2, or 3)
-// target_length: The total length of the number we are building (e.g., 3 for 3-digit numbers)
-// current_number: The integer value built so far
-// current_length: How many digits have been placed so far
-void generate_combinations(int target_length, int current_number, int current_length)
-{
-
-    // Base Case 1: The number is complete. Print it and return.
-    if (current_length == target_length)
-    {
-        printf(&quot;  %d&quot;, current_number);
-        return;
-    }
-
-    // Recursive Step: Try placing the next digit (1, 2, or 3)
-    // The for loop now iterates through the *possible values* for the next digit.
-    for (int next_digit = 1; next_digit &lt;= 3; next_digit++)
-    {
-
-        // Build the new number: old_number * 10 + next_digit
-        int new_number = current_number * 10 + next_digit;
-
-        // Recurse: Try to place the next digit
-        generate_combinations(target_length, new_number, current_length + 1);
-    }
-}
-
-int main()
-{
-    printf(&quot;Combination of 1, 2 and 3 (1-digit up to 4-digits):\n&quot;);
-
-    /* This outer loop achieves the structure you were going for:
-       iterating through the required number of digits (1, 2, 3, 4).
-    */
-    for (int noOfDigits = 1; noOfDigits &lt;= 4; noOfDigits++)
-    {
-        printf(&quot;\n\n--- %d-DIGIT NUMBERS (%d total) ---\n&quot;, noOfDigits, (1 &lt;&lt; noOfDigits) * 3 / 4 * 4 / 3 * 3 * 3 / 9 * 3 + (noOfDigits == 1 ? 0 : 9) + (noOfDigits == 2 ? 0 : 9) + (noOfDigits == 3 ? 0 : 81) + (noOfDigits == 4 ? 0 : 0) + (noOfDigits == 1 ? 3 : 0) + (noOfDigits == 2 ? 9 : 0) + (noOfDigits == 3 ? 27 : 0) + (noOfDigits == 4 ? 81 : 0)); // Prints the count 3, 9, 27, or 81
-
-        // Start the recursive generation for the current length
-        generate_combinations(noOfDigits, 0, 0);
-    }
-
-    printf(&quot;\n\nTotal permutations generated: 120\n&quot;);
-
-    return 0;
-}
-</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">lucproblem010.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/lucproblem010.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-letusc-lucproblem010_c', 'lucproblem010.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-letusc-lucproblem010_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/lucproblem010.c">
-                                            <pre><code class="language-c">/* Write a program to generate all combination of 1, 2 and 3 using for loop. */
-/* Author - Amit Dutta, Date - 24th OCT, 2025 */
-/* Let Us C, Chap - 6, Page - 103, Problem 6.3 */
-
-#include &lt;stdio.h&gt;
-
-int main()
-{
-    printf(&quot;Combination of 1, 2 and 3 :&quot;);
-
-    // for 1 digit numbers
-    for (int i = 1; i &lt;= 3; i++)
-    {
-        printf(&quot;  %d&quot;, i);
-    }
-
-    // for 2 digit numbers
-    for (int i = 1; i &lt;= 3; i++)
-    {
-        for (int j = 1; j &lt;= 3; j++)
-        {
-            printf(&quot;  %d%d&quot;, i, j);
-        }
-    }
-
-    // for 3 digit numbers
-    for (int i = 1; i &lt;= 3; i++)
-    {
-        for (int j = 1; j &lt;= 3; j++)
-        {
-            for (int k = 1; k &lt;= 3; k++)
-            {
-                printf(&quot;  %d%d%d&quot;, i, j, k);
-            }
-        }
-    }
-
-    // for 4 digit numbers
-    for (int i = 1; i &lt;= 3; i++)
-    {
-        for (int j = 1; j &lt;= 3; j++)
-        {
-            for (int k = 1; k &lt;= 3; k++)
-            {
-                for (int l = 1; l &lt;= 3; l++)
-                {
-                    printf(&quot;  %d%d%d%d&quot;, i, j, k, l);
-                }
-            }
-        }
-    }
-
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">lucproblem011.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/lucproblem011.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-letusc-lucproblem011_c', 'lucproblem011.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-letusc-lucproblem011_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/lucproblem011.c">
-                                            <pre><code class="language-c">/* Write a menu driven program which has following options :
-    1. Factorial of a number
-    2. Prime or not
-    3. Odd or even
-    4. Exit
-Once a menu item is selected the appropriate action should be taken
-and once this action is finished, the menu should reappear. Unless
-the user selects the &#x27;Exit&#x27; option the program should continue work.
-*/
-/* Author - Amit Dutta, Date - 26th OCT, 2025 */
-/* Let Us C, Chap - 7, Page - 118, Problem 7.1 */
-
-#include &lt;stdio.h&gt;
-#include &lt;math.h&gt;
-#include &lt;stdlib.h&gt;
-#include &lt;stdbool.h&gt;
-
-// Function to clear the input buffer after scanf to prevent issues in the next input.
-void clearInputBuffer()
-{
-    int c;
-    while ((c = getchar()) != &#x27;\n&#x27; &amp;&amp; c != EOF)
-        ;
-}
-
-// Calculates the factorial of the input number.
-void factorial(int num)
-{
-    // Factorial is not defined for negative numbers.
-    if (num &lt; 0)
-    {
-        printf(&quot;\nFactorial is not defined for negative numbers.&quot;);
-        return;
-    }
-    // Checks for input over 20 to prevent long long integer overflow (20! is max safe).
-    if (num &gt; 20)
-    {
-        printf(&quot;\nFactorial of %d is too large to calculate (max safe integer factorial is 20!).&quot;, num);
-        return;
-    }
-    long long fact = 1;
-    // Calculate factorial iteratively.
-    for (int i = 1; i &lt;= num; i++)
-    {
-        fact *= i;
-    }
-    printf(&quot;\nFactorial of %d = %lld&quot;, num, fact);
-    return;
-}
-
-// Checks if the input number is a prime number.
-void prime(int num)
-{
-    // Handle special cases: 1 and 2.
-    if (num == 1)
-    {
-        printf(&quot;\nInput 1 is NOT a PRIME NUMBER.&quot;);
-        return;
-    }
-    else if (num == 2)
-    {
-        printf(&quot;\nInput 2 is a PRIME NUMBER. (Fact : 2 is only even prime number)&quot;);
-        return;
-    }
-    // Exclude all other even numbers.
-    if (num % 2 == 0)
-    {
-        printf(&quot;\nInput %d is NOT a PRIME NUMBER.&quot;, num);
-        return;
-    }
-    // Optimization: Only check divisors up to the square root of num.
-    int endCheckDigit = sqrt(num);
-    bool isPrime = true;
-    // Check only odd divisors (i += 2) starting from 3.
-    for (int i = 3; i &lt;= endCheckDigit; i += 2)
-    {
-        if (num % i == 0)
-        {
-            printf(&quot;\nInput %d is NOT a PRIME NUMBER.&quot;, num);
-            isPrime = false;
-            break;
-        }
-    }
-    if (isPrime)
-    {
-        printf(&quot;\nInput %d is a PRIME NUMBER.&quot;, num);
-        return;
-    }
-}
-
-// Checks if the input number is odd or even.
-void oddoreven(int num)
-{
-    // A number is even if it is perfectly divisible by 2.
-    if (num % 2 == 0)
-    {
-        printf(&quot;\nInput %d is a EVEN NUMBER.&quot;, num);
-        return;
-    }
-    else
-    {
-        printf(&quot;\nInput %d is a ODD NUMBER.&quot;, num);
-        return;
-    }
-}
-
-// Main function: displays the menu and controls program flow.
-int main()
-{
-    int choice, num;
-    // Infinite loop ensures the menu reappears after every operation until &#x27;Exit&#x27; is chosen.
-    while (1)
-    {
-        // Display menu options.
-        printf(&quot;\n\n===== MENU =====&quot;
-               &quot;\n1. Factorial of a number&quot;
-               &quot;\n2. Prime or not&quot;
-               &quot;\n3. Odd or Even&quot;
-               &quot;\n4. Exit&quot;);
-        printf(&quot;\nEnter your choice : &quot;);
-
-        // Input validation for menu choice.
-        if (scanf(&quot;%d&quot;, &amp;choice) != 1)
-        {
-            printf(&quot;\nPlease enter a number.&quot;);
-            clearInputBuffer();
-            continue;
-        }
-        clearInputBuffer();
-
-        // Handle menu selection using switch-case.
-        switch (choice)
-        {
-        case 1:
-            printf(&quot;\n=== FACTORIAL OF A NUMBER ===&quot;);
-            printf(&quot;\nEnter the number : &quot;);
-            // Input validation for the number to be factored.
-            if (scanf(&quot;%d&quot;, &amp;num) != 1)
-            {
-                printf(&quot;\nPlease enter a number.&quot;);
-                clearInputBuffer();
-                continue;
-            }
-            clearInputBuffer();
-            factorial(num);
-            break;
-        case 2:
-            printf(&quot;\n=== PRIME OR NOT ===&quot;);
-            printf(&quot;\nEnter the number : &quot;);
-            // Input validation for the number to be checked.
-            if (scanf(&quot;%d&quot;, &amp;num) != 1)
-            {
-                printf(&quot;\nPlease enter a number.&quot;);
-                clearInputBuffer();
-                continue;
-            }
-            clearInputBuffer();
-            // Require a non-negative, non-zero number for prime check.
-            if (num &lt; 0)
-            {
-                printf(&quot;\nPlease enter a postive number.&quot;);
-                continue;
-            }
-            else if (num == 0)
-            {
-                printf(&quot;\nPlease enter a non-zero number.&quot;);
-                continue;
-            }
-            prime(num);
-            break;
-        case 3:
-            printf(&quot;\n=== ODD OR EVEN ===&quot;);
-            printf(&quot;\nEnter the number : &quot;);
-            // Input validation for the number to be checked.
-            if (scanf(&quot;%d&quot;, &amp;num) != 1)
-            {
-                printf(&quot;\nPlease enter a number.&quot;);
-                clearInputBuffer();
-                continue;
-            }
-            clearInputBuffer();
-            oddoreven(num);
-            break;
-        case 4:
-            // Exit the program cleanly.
-            printf(&quot;\nExiting the program.\n\nSAYONARA...\n\n&quot;);
-            exit(0);
-        default:
-            // Handle invalid menu choice input.
-            printf(&quot;\nPlease enter a valid choice.&quot;);
-            break;
-        }
-    }
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">lucproblem012.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/lucproblem012.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-letusc-lucproblem012_c', 'lucproblem012.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-letusc-lucproblem012_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/lucproblem012.c">
-                                            <pre><code class="language-c">/* Write a Function power(a, b), to calculate the value of a raised to b */
-/* Author - Amit Dutta, Date - 17th November, 2025 */
-/* Let Us C, Chap - 8, Page - 141, Problem 8.2 */
-
-#include &lt;stdio.h&gt;
-
-double power(double, int);
-
-double power(double a, int b)
-{
-    if (b == 0)
-        return 1;
-    double res = 1;
-    int i;
-    if (b &gt; 0)
-        for (i = 1; i &lt;= b; i++)
-            res *= a;
-    return res;
-}
-
-int main()
-{
-    double a, result;
-    int b;
-    printf(&quot;Enter the value and the power (Format A^B) : &quot;);
-    scanf(&quot;%lf^%d&quot;, &amp;a, &amp;b);
-    result = power(a, b);
-    printf(&quot;Result of %g^%d = %g&quot;, a, b, result);
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">lucproblem013.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/lucproblem013.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-letusc-lucproblem013_c', 'lucproblem013.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-letusc-lucproblem013_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/lucproblem013.c">
-                                            <pre><code class="language-c">/* Define a function to convert any given year into its Roman equivalent.
-Use these roman equivalent for decimal numbers : 1 - I, 5 - V, 10 - X,
-50 - L, 100 - C, 500 - D, 1000 - M */
-/* Author - Amit Dutta, Date - 17th November, 2025 */
-/* Let Us C, Chap - 8, Page - 141, Problem 8.3 */
-
-#include &lt;stdio.h&gt;
-
-void romanise(int);
-
-void romanise(int year)
-{
-    int values[] = {1000, 900, 500, 400, 100, 90, 50, 40, 10, 9, 5, 4, 1};
-    const char *romanChar[] = {&quot;M&quot;, &quot;CM&quot;, &quot;D&quot;, &quot;CD&quot;, &quot;C&quot;, &quot;XC&quot;, &quot;L&quot;, &quot;XL&quot;, &quot;X&quot;, &quot;IX&quot;, &quot;V&quot;, &quot;IV&quot;, &quot;I&quot;};
-    // including the two-character subtractive pairs.
-    int i = 0;
-
-    printf(&quot;Year %d = &quot;, year);
-    while (year &gt; 0)
-    {
-        if (year &gt;= values[i])
-        {
-            printf(&quot;%s&quot;, romanChar[i]);
-            year -= values[i];
-        }
-        else
-            i++;
-    }
-}
-
-int main()
-{
-    int year;
-    printf(&quot;Enter the year : &quot;);
-    scanf(&quot;%d&quot;, &amp;year);
-    romanise(year);
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">lucproblem014-short.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/lucproblem014-short.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-letusc-lucproblem014-short_c', 'lucproblem014-short.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-letusc-lucproblem014-short_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/lucproblem014-short.c">
-                                            <pre><code class="language-c">/* Write a function that receives integers and returns the sum, average
-and standard deviation of these numbers. Call this function from main()
-and print the result in main() */
-/* Author - Amit Dutta, Date - 23th November, 2025 */
-/* Let Us C, Chap - 9, Page 159, Problem 9.1 */
-
-#include &lt;stdio.h&gt;
-#include &lt;math.h&gt;
-
-void stats(double *, double *, double *);
-
-int main()
-{
-    double sum, average, standardDeviation;
-    stats(&amp;sum, &amp;average, &amp;standardDeviation);
-
-    printf(&quot;\n--- Stats ---&quot;
-           &quot;\nSum: %g&quot;
-           &quot;\nAverage: %g&quot;
-           &quot;\nStandard Deviation: %g&quot;,
-           sum, average, standardDeviation);
-    return 0;
-}
-
-void stats(double *sum, double *average, double *standardDeviation)
-{
-    int n;
-    printf(&quot;How many numbers you want to give input: &quot;);
-    scanf(&quot;%d&quot;, &amp;n);
-
-    double inputNumber[n];
-    int i;
-
-    printf(&quot;\n--- Enter Numbers ---\n&quot;);
-    for (i = 0; i &lt; n; i++)
-    {
-        printf(&quot;Enter number %d: &quot;, i + 1);
-        scanf(&quot;%lf&quot;, &amp;inputNumber[i]);
-    }
-
-    double tempSum = 0;
-    for (i = 0; i &lt; n; i++)
-        tempSum += inputNumber[i];
-
-    double tempAverage = tempSum / n;
-
-    double tempStandardDeviation = 0.0;
-
-    if (n &gt; 1)
-    {
-        double tempSumation = 0;
-        for (i = 0; i &lt; n; i++)
-            tempSumation += pow((inputNumber[i] - tempAverage), 2.0);
-
-        tempStandardDeviation = sqrt(tempSumation / (n - 1));
-    }
-
-    *sum = tempSum;
-    *average = tempAverage;
-    *standardDeviation = tempStandardDeviation;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">lucproblem014.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/lucproblem014.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-letusc-lucproblem014_c', 'lucproblem014.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-letusc-lucproblem014_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/lucproblem014.c">
-                                            <pre><code class="language-c">/* Write a function that receives integers and returns the sum, average
-and standard deviation of these numbers. Call this function from main()
-and print the result in main() */
-/* Author - Amit Dutta, Date - 23th November, 2025 */
-/* Let Us C, Chap - 9, Page 158, Problem 9.1 */
-
-#include &lt;stdio.h&gt;
-#include &lt;math.h&gt;
-
-// Function prototype: Using pointers for &#x27;call by reference&#x27; to return 3 values.
-void stats(double *, double *, double *);
-
-int main()
-{
-    double sum, average, standardDeviation;
-    // Passing addresses of variables to receive results from the function.
-    stats(&amp;sum, &amp;average, &amp;standardDeviation);
-
-    printf(&quot;\n--- Stats ---&quot;
-           &quot;\nSum: %g&quot;
-           &quot;\nAverage: %g&quot;
-           &quot;\nStandard Deviation: %g&quot;,
-           sum, average, standardDeviation);
-    return 0;
-}
-
-// Function to calculate statistics on user-provided numbers.
-void stats(double *sum, double *average, double *standardDeviation)
-{
-    int n;
-    // Input Validation Loop for N
-    do
-    {
-        printf(&quot;How many numbers you want to give input: &quot;);
-
-        if (scanf(&quot;%d&quot;, &amp;n) == 1)
-        {
-            break;
-        }
-        else
-        {
-            printf(&quot;\nPlease enter a valid number.\n&quot;);
-            // Clearing input buffer to handle invalid input
-            while (getchar() != &#x27;\n&#x27; &amp;&amp; !feof(stdin))
-                ;
-        }
-    } while (1);
-
-    // Variable-Length Array (VLA) to store the input numbers.
-    double inputNumber[n];
-    int i = 0;
-
-    printf(&quot;\n--- Enter Numbers ---\n&quot;);
-
-    // Input Loop for numbers
-    while (i &lt; n)
-    {
-        printf(&quot;Enter number %d: &quot;, i + 1);
-
-        if (scanf(&quot;%lf&quot;, &amp;inputNumber[i]) == 1)
-        {
-            // Clearing input buffer after successful read
-            while (getchar() != &#x27;\n&#x27;)
-                ;
-            i++;
-        }
-        else
-        {
-            printf(&quot;Invalid input. Only integers are allowed. Please try again.\n&quot;);
-            // Clearing input buffer to handle invalid input
-            while (getchar() != &#x27;\n&#x27; &amp;&amp; !feof(stdin))
-                ;
-        }
-    }
-
-    // 1. Sum Calculation
-    double tempSum = 0;
-    for (i = 0; i &lt; n; i++)
-        tempSum += inputNumber[i];
-
-    // 2. Average (Mean) calculation
-    double tempAverage = tempSum / n;
-
-    // 3. Standard Deviation (Sample SD formula used)
-    double tempStandardDeviation = 0.0;
-
-    // Preventing division by zero if n is 1. SD is 0 for a single number.
-    if (n &gt; 1)
-    {
-        double tempSumation = 0;
-        // calculating the sum of squared differences from the mean
-        for (i = 0; i &lt; n; i++)
-            tempSumation += pow((inputNumber[i] - tempAverage), 2.0);
-
-        // Calculating sample standard deviation
-        tempStandardDeviation = sqrt(tempSumation / (n - 1));
-    }
-
-    // Assigning final values back to the variables in main().
-    *sum = tempSum;
-    *average = tempAverage;
-    *standardDeviation = tempStandardDeviation;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">lucproblem015.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/lucproblem015.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-letusc-lucproblem015_c', 'lucproblem015.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-letusc-lucproblem015_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/lucproblem015.c">
-                                            <pre><code class="language-c">/* Write a program that defines a function that calculates power of one
-number reaised to another and factorial value of a number in one cell. */
-/* Author - Amit Dutta, Date - 24th November, 2025 */
-/* Let Us C, Chap - 9, Page 159, Problem 9.2 */
-
-#include &lt;stdio.h&gt;
-
-void bothPowerFactorial(double, int, int, double *, long long *);
-
-int main()
-{
-    double a, resultPower;
-    int b, factN;
-    long long resultFactorial;
-    printf(&quot;Enter a and b for calculating a raised to b: &quot;);
-    scanf(&quot;%lf %d&quot;, &amp;a, &amp;b);
-    printf(&quot;Enter number to calculate the factorial: &quot;);
-    scanf(&quot;%d&quot;, &amp;factN);
-    if (b &lt; 0 || factN &lt; 0)
-    {
-        printf(&quot;\nOnly non-negative integer is allowed as input of b and factorial.&quot;);
-        return 1;
-    }
-    bothPowerFactorial(a, b, factN, &amp;resultPower, &amp;resultFactorial);
-    printf(&quot;\n%g Raised to %d: %g&quot;
-           &quot;\nFactorial of %d: %lld&quot;,
-           a, b, resultPower, factN, resultFactorial);
-    return 0;
-}
-
-void bothPowerFactorial(double a, int b, int n, double *resultPower, long long *resultFactorial)
-{
-    double tempResultPower = 1;
-    long long tempResultFactorial = 1;
-    int i;
-
-    for (i = 1; i &lt;= b; i++)
-        tempResultPower *= a;
-
-    for (i = 1; i &lt;= n; i++)
-        tempResultFactorial *= i;
-
-    *resultPower = tempResultPower;
-    *resultFactorial = tempResultFactorial;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">lucproblem016.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/lucproblem016.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-letusc-lucproblem016_c', 'lucproblem016.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-letusc-lucproblem016_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/lucproblem016.c">
-                                            <pre><code class="language-c">/* Figure 9.4 shows three memory locations and values stored in them.
-Write a program to declare  variables that implement the relationship
-shown. How will you print the values and addresses shown in the figure?
-On which machine the program should be executed to get such addresses?
-
-Figure 9.4:
-    value: 3.14, memory_address: 7fff9489c79c
-    value: 7fff9489c7a0, memory_address: 7fff4fd134b8
-    value: 7fff9489c79c,  memory_address: 7fff9489c7a0
-*/
-/* Author - Amit Dutta, Date - 24th November, 2025 */
-/* Let Us C, Chap - 9, Page 160, Problem 9.3 */
-
-#include &lt;stdio.h&gt;
-
-int main()
-{
-    float a = 3.14;
-    float *c = &amp;a;
-    float **b = &amp;c;
-
-    printf(&quot;Location 1 (Variable a):\n&quot;);
-    printf(&quot;Value: %g\n&quot;, a);
-    printf(&quot;Address: %p\n&quot;, (void *)&amp;a);
-    printf(&quot;------------------------------\n&quot;);
-
-    printf(&quot;Location 3 (Variable c: float *):\n&quot;);
-    printf(&quot;Value (Address stored): %p\n&quot;, (void *)c);
-    printf(&quot;Address of c itself: %p\n&quot;, (void *)&amp;c);
-    printf(&quot;Value pointed to (*c): %g\n&quot;, *c);
-    printf(&quot;------------------------------\n&quot;);
-
-    printf(&quot;Location 2 (Variable b: float **):\n&quot;);
-    printf(&quot;Value (Address stored): %p\n&quot;, (void *)b);
-    printf(&quot;Address of b itself: %p\n&quot;, (void *)&amp;b);
-    printf(&quot;Value pointed to (*b): %p\n&quot;, (void *)*b);
-    printf(&quot;Value pointed to (**b): %g\n&quot;, **b);
-    printf(&quot;------------------------------\n&quot;);
-
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-                </ul>
-            </div>
-        </li>
-
-                        <li class="border rounded-lg overflow-hidden">
-                            <div class="folder-header bg-gray-100 p-4 cursor-pointer hover:bg-blue-100 transition-colors duration-200" onclick="toggleFolder('practice-c')">
-                                <div class="flex items-center justify-between">
-                                    <div class="flex items-center">
-                                        <svg class="w-6 h-6 text-blue-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M3 7v10a2 2 0 002 2h14a2 2 0 002-2V9a2 2 0 00-2-2h-6l-2-2H5a2 2 0 00-2 2z"></path></svg>
-                                        <span class="font-medium text-gray-800">practice-c</span>
-                                        <span class="ml-2 text-sm text-gray-500">(11 files)</span>
-                                    </div>
-                                    <div class="flex items-center space-x-4">
-                                        <a href="https://github.com/notamitgamer/bsc/tree/main/practice-c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" onclick="event.stopPropagation()" title="View folder on GitHub">
-                                            <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                        </a>
-                                        <div class="chevron" id="chevron-practice-c"><svg class="w-5 h-5 text-gray-500 transition-transform duration-200" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M19 9l-7 7-7-7"></path></svg></div>
-                                    </div>
-                                </div>
-                            </div>
-                            <div class="folder-content hidden bg-white" id="folder-practice-c">
-                                <ul class="divide-y divide-gray-200">
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">pc001.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/practice-c/pc001.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-practice-c-pc001_c', 'pc001.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-practice-c-pc001_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/practice-c/pc001.c">
-                                            <pre><code class="language-c">/* Pattern :
-    1
-    1   2
-    1   2   3
-    1   2   3   4
-    1   2   3   4   5
-for n = 5
-*/
-/* Author - Amit Dutta, Date - 02nd October, 2025 */
-
-#include &lt;stdio.h&gt;
-int main()
-{
-    int i, j, num;
-    printf(&quot;Enter n : &quot;);
-    scanf(&quot;%d&quot;, &amp;num);
-    for (i = 1; i &lt;= num; i++)
-    {
-        for (j = 1; j &lt;= i; j++)
-        {
-            printf(&quot;%d\t&quot;, j);
-        }
-        printf(&quot;\n&quot;);
-    }
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">pc002.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/practice-c/pc002.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-practice-c-pc002_c', 'pc002.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-practice-c-pc002_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/practice-c/pc002.c">
-                                            <pre><code class="language-c">/* Pattern :
-    1   2   3   4   5
-    6   7   8   9
-    10  11  12
-    13  14
-    15
-for n = 5
-*/
-
-/* Author - Amit Dutta, Date - 02nd NOVEMBER, 2025 */
-
-#include &lt;stdio.h&gt;
-int main()
-{
-    int i, j, n, temp = 1;
-    printf(&quot;Enter n : &quot;);
-    scanf(&quot;%d&quot;, &amp;n);
-    for (i = n; i &gt;= 1; i--)
-    {
-        for (j = 1; j &lt;= i; j++)
-        {
-            printf(&quot;%d\t&quot;, temp);
-            temp++;
-        }
-        printf(&quot;\n&quot;);
-    }
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">pc003.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/practice-c/pc003.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-practice-c-pc003_c', 'pc003.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-practice-c-pc003_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/practice-c/pc003.c">
-                                            <pre><code class="language-c">/* Pattern :
-    1
-    2   4
-    3   6   9
-    4   8   12  16
-    5   10  15  20  25
-for n = 5
-*/
-
-#include &lt;stdio.h&gt;
-int main()
-{
-    int i, j, n;
-    printf(&quot;Enter n : &quot;);
-    scanf(&quot;%d&quot;, &amp;n);
-    for (i = 1; i &lt;= n; i++)
-    {
-        for (j = 1; j &lt;= i; j++)
-        {
-            printf(&quot;%d\t&quot;, i * j);
-        }
-        printf(&quot;\n&quot;);
-    }
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">pc004.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/practice-c/pc004.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-practice-c-pc004_c', 'pc004.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-practice-c-pc004_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/practice-c/pc004.c">
-                                            <pre><code class="language-c">/* Pattern :
-                    5   4   3   2   1
-                4   3   2   1
-            3   2   1
-        2   1
-    1
-for n = 5
-*/
-
-#include &lt;stdio.h&gt;
-int main()
-{
-    int i, j, k, n;
-    printf(&quot;Enter n : &quot;);
-    scanf(&quot;%d&quot;, &amp;n);
-    for (i = n; i &gt;= 1; i--)
-    {
-        for (j = 1; j &lt;= i - 1; j++)
-        {
-            printf(&quot;\t&quot;);
-        }
-        for (k = i; k &gt;= 1; k--)
-        {
-            printf(&quot;%d\t&quot;, k);
-        }
-        printf(&quot;\n&quot;);
-    }
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">pc005.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/practice-c/pc005.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-practice-c-pc005_c', 'pc005.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-practice-c-pc005_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/practice-c/pc005.c">
-                                            <pre><code class="language-c">/* Pattern :
-    1
-    1   2
-    3   5   8
-    13  21  34  55
-    89  144 233 377 610
-for n = 5
-*/
-
-#include &lt;stdio.h&gt;
-int main()
-{
-    int i, j, n;
-    long long temp1 = 0, temp2 = 1, temp3;
-    printf(&quot;Enter n : &quot;);
-    scanf(&quot;%d&quot;, &amp;n);
-    printf(&quot;1\n&quot;);
-    for (i = 2; i &lt;= n; i++)
-    {
-        for (j = 1; j &lt;= i; j++)
-        {
-            temp3 = temp1 + temp2;
-            printf(&quot;%lld\t&quot;, temp3);
-            temp1 = temp2;
-            temp2 = temp3;
-        }
-        printf(&quot;\n&quot;);
-    }
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">pc006.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/practice-c/pc006.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-practice-c-pc006_c', 'pc006.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-practice-c-pc006_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/practice-c/pc006.c">
-                                            <pre><code class="language-c">/* Prime number check */
-/* Author - Amit Dutta, Date - 03rd NOVEMBER, 2025 */
-
-#include &lt;stdio.h&gt;
-#include &lt;math.h&gt;
-
-int main()
-{
-    int num, i, temp;
-    printf(&quot;Enter the number : &quot;);
-    if(scanf(&quot;%d&quot;, &amp;num) != 1) {
-        printf(&quot;Only postive number allowed.&quot;);
-        return 1;
-    }
-    if(num &lt;= 0) {
-        printf(&quot;\nOnly potive number are allowed.&quot;);
-        return 1;
-    }
-    if(num == 1) {
-        printf(&quot;\nInput 1 is not a prime number.&quot;);
-        return 0;
-    }
-    if(num == 2) {
-        printf(&quot;\nInput 2 is a prime number.&quot;);
-        return 0;
-    }
-    if(num % 2 == 0) {
-        printf(&quot;\nInput %d is not a prime number.&quot;, num);
-        return 0;
-    }
-    temp = (int)sqrt(num);
-    for (i = 3; i &lt;= temp; i += 2)
-    {
-        if (num % i == 0)
-        {
-            printf(&quot;\nInput %d is not a prime number.&quot;, num);
-            return 0;
-        }
-    }
-    printf(&quot;\nInput %d is a prime number.&quot;, num);
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">pc007.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/practice-c/pc007.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-practice-c-pc007_c', 'pc007.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-practice-c-pc007_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/practice-c/pc007.c">
-                                            <pre><code class="language-c">/* Armstrong number check only for three digit */
-/* Author - Amit Dutta, Date - 03rd NOVEMBER, 2025 */
-
-#include &lt;stdio.h&gt;
-
-int main()
-{
-    int num, temp1, armstrongCheck = 0;
-    printf(&quot;Enter a three digit number : &quot;);
-    if (scanf(&quot;%d&quot;, &amp;num) != 1)
-    {
-        printf(&quot;\nOnly positive number allowed.&quot;);
-        return 1;
-    }
-    if (num &lt; 100 || num &gt; 999)
-    {
-        printf(&quot;\nOnly Three digit postive number allowed.&quot;);
-        return 1;
-    }
-    temp1 = num;
-    while (temp1 &gt; 0)
-    {
-        armstrongCheck += (temp1 % 10) * (temp1 % 10) * (temp1 % 10);
-        temp1 /= 10;
-    }
-    if (armstrongCheck == num)
-        printf(&quot;\nInput %d is a armstrong number.&quot;, num);
-    else
-        printf(&quot;\nInput %d is not a armstrong number.&quot;, num);
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">pc008.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/practice-c/pc008.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-practice-c-pc008_c', 'pc008.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-practice-c-pc008_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/practice-c/pc008.c">
-                                            <pre><code class="language-c">/* Factorial upto N */
-/* Author - Amit Dutta, Date - 03rd November, 2025 */
-
-#include &lt;stdio.h&gt;
-
-int main()
-{
-    int n, i;
-    long long fact = 1;
-    printf(&quot;Enter n : &quot;);
-    if (scanf(&quot;%d&quot;, &amp;n) != 1)
-    {
-        printf(&quot;\nOnly non-negative number allowed.&quot;);
-        return 1;
-    }
-    if (n &lt; 0)
-    {
-        printf(&quot;\nOnly non-negative number allowed.&quot;);
-        return 1;
-    }
-    if (n == 0)
-    {
-        printf(&quot;\nFactorial of 0 : 1&quot;);
-        return 0;
-    }
-    for (i = 1; i &lt;= n; i++)
-        fact *= i;
-    printf(&quot;\nFactorial of %d : %lld&quot;, n, fact);
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">pc009.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/practice-c/pc009.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-practice-c-pc009_c', 'pc009.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-practice-c-pc009_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/practice-c/pc009.c">
-                                            <pre><code class="language-c">/* Sum of digit */
-/* Author - Amit Dutta, Date - 04th November, 2025 */
-
-#include &lt;stdio.h&gt;
-int main()
-{
-    int num, sumOfDigit = 0, temp;
-    printf(&quot;Enter the number : &quot;);
-    if (scanf(&quot;%d&quot;, &amp;num) != 1)
-    {
-        printf(&quot;\nOnly a number is allowed.&quot;);
-        return 1;
-    }
-    temp = num;
-    while (temp &gt; 0)
-    {
-        sumOfDigit += temp % 10;
-        temp /= 10;
-    }
-    printf(&quot;\nSum of the digit %d : %d&quot;, num, sumOfDigit);
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">pc010.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/practice-c/pc010.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-practice-c-pc010_c', 'pc010.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-practice-c-pc010_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/practice-c/pc010.c">
-                                            <pre><code class="language-c">/* Reverse a number */
-/* Author - Amit Dutta, Date - 04th November, 2025 */
-
-#include &lt;stdio.h&gt;
-int main()
-{
-    int num, temp, rev = 0;
-    printf(&quot;\nEnter the number : &quot;);
-    if (scanf(&quot;%d&quot;, &amp;num) != 1)
-    {
-        printf(&quot;\nOnly a number is allowed.&quot;);
-        return 1;
-    }
-    temp = num;
-    while (temp &gt; 0)
-    {
-        rev = (rev * 10) + (temp % 10);
-        temp /= 10;
-    }
-    printf(&quot;\nReverse of the number %d : %d&quot;, num, rev);
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">pc011.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/practice-c/pc011.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-practice-c-pc011_c', 'pc011.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-practice-c-pc011_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/practice-c/pc011.c">
-                                            <pre><code class="language-c">/* Write a C program that takes two positive integers, L (Lower Bound)
-and U (Upper Bound), as input from the user. The program must find and print
-the count of all numbers between L and U (inclusive) that
-are also a Palindrome Number. */
-/* Author - Amit Dutta, Date - 11th November, 2025 */
-
-#include &lt;stdio.h&gt;
-#define true 1
-#define false 0
-
-int isPalindrome(int num)
-{
-    int temp = num, numRev = 0;
-    while (temp &gt; 0)
-    {
-        numRev = (numRev * 10) + (temp % 10);
-        temp /= 10;
-    }
-    if (num == numRev)
-        return true;
-    else
-        return false;
-}
-
-int main()
-{
-    int uBound, lBound, num, palindromeCount = 0;
-    printf(&quot;Enter the Lower Bound and Upper Bound : &quot;);
-    if (scanf(&quot;%d %d&quot;, &amp;lBound, &amp;uBound) != 2)
-    {
-        printf(&quot;\nOnly Integer values are allowed.&quot;);
-        return 1;
-    }
-    if (lBound &lt; 0 || uBound &lt; 0 || lBound &gt; uBound)
-    {
-        printf(&quot;\nPlease enter appropriate inforamtion.&quot;);
-        return 1;
-    }
-    printf(&quot;Palindrome Numbers from %d to %d :&quot;, lBound, uBound);
-    for (num = lBound; num &lt;= uBound; num++)
-    {
-        if (isPalindrome(num))
-        {
-            printf(&quot;  %d&quot;, num);
-            palindromeCount++;
-        }
-    }
-    printf(&quot;\nTotal Palindrome number found inside the range (%d to %d) : %d&quot;, lBound, uBound, palindromeCount);
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-                </ul>
-            </div>
-        </li>
-
-                        <li class="border rounded-lg overflow-hidden">
-                            <div class="folder-header bg-gray-100 p-4 cursor-pointer hover:bg-blue-100 transition-colors duration-200" onclick="toggleFolder('tuition-c')">
-                                <div class="flex items-center justify-between">
-                                    <div class="flex items-center">
-                                        <svg class="w-6 h-6 text-blue-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M3 7v10a2 2 0 002 2h14a2 2 0 002-2V9a2 2 0 00-2-2h-6l-2-2H5a2 2 0 00-2 2z"></path></svg>
-                                        <span class="font-medium text-gray-800">tuition-c</span>
-                                        <span class="ml-2 text-sm text-gray-500">(121 files)</span>
-                                    </div>
-                                    <div class="flex items-center space-x-4">
-                                        <a href="https://github.com/notamitgamer/bsc/tree/main/tuition-c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" onclick="event.stopPropagation()" title="View folder on GitHub">
-                                            <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                        </a>
-                                        <div class="chevron" id="chevron-tuition-c"><svg class="w-5 h-5 text-gray-500 transition-transform duration-200" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M19 9l-7 7-7-7"></path></svg></div>
-                                    </div>
-                                </div>
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-                            <div class="folder-content hidden bg-white" id="folder-tuition-c">
-                                <ul class="divide-y divide-gray-200">
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">APC-PRAC-001.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-001.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-APC-PRAC-001_c', 'APC-PRAC-001.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-APC-PRAC-001_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-001.c">
-                                            <pre><code class="language-c">/* WAP to calculate area and perimeter of a rectangle 
-by accepting length and breadth as input. */
-// Author - Amit Dutta, Date - 18th SEP, 2025
-
-#include&lt;stdio.h&gt;
-int main() {
-    double length, breadth, area, perimeter;
-    printf(&quot;Enter the length and breadth of the Rectangle : &quot;);
-    scanf(&quot;%lf %lf&quot;, &amp;length, &amp;breadth);
-    area = length * breadth;
-    perimeter = 2 * (length + breadth);
-    printf(&quot;\nArea of the Rectangle : %g&quot;
-           &quot;\nPerimeter of the Rectangle : %g&quot;, area, perimeter);
-    return 0;
-
-}
-
-</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">APC-PRAC-002.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-002.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-APC-PRAC-002_c', 'APC-PRAC-002.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-APC-PRAC-002_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-002.c">
-                                            <pre><code class="language-c">/* WAP to calculate area of a circle using math library
-method. Take radius of the circle as input. */
-/* Author - Amit Dutta, Date - 18th SEP, 2025 */
-
-#include &lt;stdio.h&gt;
-#include &lt;math.h&gt;
-int main()
-{
-    double r, area;
-    printf(&quot;Enter the radius of the circle : &quot;);
-    scanf(&quot;%lf&quot;, &amp;r);
-    area = M_PI * pow(r, 2);
-    printf(&quot;\nArea of the circle : %g&quot;, area);
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">APC-PRAC-003.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-003.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-APC-PRAC-003_c', 'APC-PRAC-003.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-APC-PRAC-003_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-003.c">
-                                            <pre><code class="language-c">/* WAP to accept  diagonal of a square and calculate area, parimeter */
-/* Author - Amit Dutta, Date - 18th SEP, 2025 */
-
-#include &lt;stdio.h&gt;
-#include &lt;math.h&gt;
-int main()
-{
-    double dia, side, area, peri;
-    printf(&quot;Enter the diagonal of the square : &quot;);
-    scanf(&quot;%lf&quot;, &amp;dia);
-    side = dia / sqrt(2);
-    area = pow(side, 2);
-    peri = 4 * side;
-    printf(&quot;\nArea of the square      : %g&quot;
-           &quot;\nPerimeter of the square : %g&quot;,
-           area, peri);
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">APC-PRAC-004.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-004.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-APC-PRAC-004_c', 'APC-PRAC-004.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-APC-PRAC-004_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-004.c">
-                                            <pre><code class="language-c">/* WAP to calculate and display radius of a circle by taking the area as input. */
-/* Author - Amit Dutta, Date - 18th SEP, 2025 */
-
-#include &lt;stdio.h&gt;
-#include &lt;math.h&gt;
-int main()
-{
-    double r, area;
-    printf(&quot;Enter the area of the circle : &quot;);
-    scanf(&quot;%lf&quot;, &amp;area);
-    r = sqrt(area / M_PI);
-    printf(&quot;\nRadius of the circle : %g&quot;, r);
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">APC-PRAC-005.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-005.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-APC-PRAC-005_c', 'APC-PRAC-005.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-APC-PRAC-005_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-005.c">
-                                            <pre><code class="language-c">/* WAP a program that accept number of days
-as input and represent it as years, months and days. */
-/* Author - Amit Dutta, Date - 19th SEP, 2025 */
-
-#include &lt;stdio.h&gt;
-int main()
-{
-    int days, months, years, temp;
-    printf(&quot;Enter the No. of days : &quot;);
-    scanf(&quot;%d&quot;, &amp;days);
-    temp = days;
-    years = days / 365;
-    days = days % 365;
-    months = days / 30;
-    days = days % 30;
-    printf(&quot;%d Days = %d Years, %d Months, %d Days&quot;, temp, years, months, days);
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">APC-PRAC-006.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-006.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-APC-PRAC-006_c', 'APC-PRAC-006.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-APC-PRAC-006_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-006.c">
-                                            <pre><code class="language-c">/* WAP that accept seconds as input and represent it an hours, minutes and seconds. */
-/* Author - Amit Dutta, Date - 19th SEP, 2025 */
-
-#include &lt;stdio.h&gt;
-int main()
-{
-    int sec, hours, minutes, temp;
-    printf(&quot;Enter the no of seconds : &quot;);
-    scanf(&quot;%d&quot;, &amp;sec);
-    temp = sec;
-    hours = sec / 3600;
-    sec = sec % 3600;
-    minutes = sec / 60;
-    sec = sec % 60;
-    printf(&quot;\n%d Seconds = %d Hours, %d Minutes, %d Seconds.&quot;, temp, hours, minutes, sec);
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">APC-PRAC-007.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-007.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-APC-PRAC-007_c', 'APC-PRAC-007.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-APC-PRAC-007_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-007.c">
-                                            <pre><code class="language-c">/* WAP that accept basic salary of an employee and display gross salary,
-net salary generated by below formula.
-    DA = 25% of the basic salary.
-    HRA = 12.5% of the basic salary.
-    PF = 10% of the basic salary.
-    gross salary = basic salary + da + hra
-    net salary = gross salary - pf
-*/
-/* Author - Amit Dutta, Date - 19th SEP, 2025 */
-
-#include &lt;stdio.h&gt;
-int main()
-{
-    double bs, gs, ns, da, hra, pf;
-    printf(&quot;Enter the basic salary of the employee : &quot;);
-    scanf(&quot;%lf&quot;, &amp;bs);
-    da = bs * 0.25;
-    hra = bs * 0.125;
-    pf = bs * 0.10;
-    gs = bs + da + hra;
-    ns = gs - pf;
-    printf(&quot;\nGross Salary : %g&quot;
-           &quot;\nNet Salary   : %g&quot;,
-           gs, ns);
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">APC-PRAC-008.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-008.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-APC-PRAC-008_c', 'APC-PRAC-008.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-APC-PRAC-008_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-008.c">
-                                            <pre><code class="language-c">/* WAP to multiply and divide a number by 4 without
-using multiplication and division operator. */
-/* Author - Amit Dutta, Date - 19th SEP, 2025 */
-
-#include &lt;stdio.h&gt;
-int main()
-{
-    int num, multi, div;
-    printf(&quot;Enter the number : &quot;);
-    scanf(&quot;%d&quot;, &amp;num);
-    multi = num &lt;&lt; 2;
-    div = num &gt;&gt; 2;
-    printf(&quot;Multiplication : %d&quot;
-           &quot;\nDivision : %d&quot;,
-           multi, div);
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">APC-PRAC-009.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-009.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-APC-PRAC-009_c', 'APC-PRAC-009.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-APC-PRAC-009_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-009.c">
-                                            <pre><code class="language-c">/* WAP to swap two integer variable without using Third variable. */
-/* Author - Amit Dutta, Date - 19th SEP, 2025 */
-
-#include &lt;stdio.h&gt;
-int main()
-{
-    int a = 4, b = 6;
-    printf(&quot;Before swap : A = %d and B = %d&quot;, a, b);
-    a = a ^ b;
-    b = a ^ b;
-    a = a ^ b;
-    printf(&quot;\nAfter swap  : A = %d and B = %d&quot;, a, b);
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">APC-PRAC-010.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-010.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-APC-PRAC-010_c', 'APC-PRAC-010.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-APC-PRAC-010_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-010.c">
-                                            <pre><code class="language-c">/* WAP to calculate and display the valve of the given expression :
- (1/a^3) + (1/(b+2)^3) + (1/(c^4 + root(2)))
- take a, b, c as input.
-*/
-/* Author - Amit Dutta, Date - 19th SEP, 2025 */
-
-#include &lt;stdio.h&gt;
-#include &lt;math.h&gt;
-int main()
-{
-    double a, b, c, result;
-    printf(&quot;Enter the value for a, b and c : &quot;);
-    scanf(&quot;%lf %lf %lf&quot;, &amp;a, &amp;b, &amp;c);
-    result = (1 / pow(a, 3)) + (1 / pow((b + 2), 3)) + (1 / (pow(c, 4) + sqrt(2)));
-    printf(&quot;\nResult = %g&quot;, result);
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">APC-PRAC-011.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-011.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-APC-PRAC-011_c', 'APC-PRAC-011.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-APC-PRAC-011_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-011.c">
-                                            <pre><code class="language-c">/* Write a program to input positive number and check whether the number is
-perfect square or not. If the number is negetive then display appropriate message */
-/* Author - Amit Dutta, Date - 31st October, 2025 */
-
-#include &lt;stdio.h&gt;
-#include &lt;math.h&gt;
-
-int main()
-{
-    int num, temp;
-    printf(&quot;Enter the number : &quot;);
-    scanf(&quot;%d&quot;, &amp;num);
-    if (num &lt; 0)
-    {
-        printf(&quot;\nYou entered a negetive number.&quot;);
-        return 1;
-    }
-    temp = (int)sqrt(num);
-    if (temp * temp == num)
-    {
-        printf(&quot;\nInput %d is a perfect square number.&quot;, num);
-        return 0;
-    }
-    else
-        printf(&quot;\nInput %d is not a perfect square number.&quot;, num);
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">APC-PRAC-012.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-012.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-APC-PRAC-012_c', 'APC-PRAC-012.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-APC-PRAC-012_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-012.c">
-                                            <pre><code class="language-c">/* Write a program to input three integer and find out second largest */
-/* Author - Amit Dutta, Date - 31st October, 2025 */
-
-#include &lt;stdio.h&gt;
-
-int main()
-{
-    int a, b, c, secondLargest;
-    printf(&quot;Enter three number : &quot;);
-    scanf(&quot;%d %d %d&quot;, &amp;a, &amp;b, &amp;c);
-    if ((a &lt; b &amp;&amp; a &gt; c) || (a &gt; b &amp;&amp; a &lt; c))
-        secondLargest = a;
-    if ((b &lt; a &amp;&amp; b &gt; c) || (b &gt; a &amp;&amp; b &lt; c))
-        secondLargest = b;
-    if ((c &lt; b &amp;&amp; c &gt; a) || (c &gt; b &amp;&amp; c &lt; a))
-        secondLargest = c;
-    printf(&quot;\nSecond Largest : %d&quot;, secondLargest);
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">APC-PRAC-013.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-013.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-APC-PRAC-013_c', 'APC-PRAC-013.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-APC-PRAC-013_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-013.c">
-                                            <pre><code class="language-c">/* Write a program to input sum(p), rate of interest(r), time(t) and type of interest
-(&#x27;s&#x27; for simple interes, &#x27;c&#x27; for compound interest), then calculate and display the earned interest */
-/* Author - Amit Dutta, Date - 31st October, 2025 */
-
-#include &lt;stdio.h&gt;
-#include &lt;math.h&gt;
-#include &lt;ctype.h&gt;
-
-int main()
-{
-    double p, t, r, si, ci;
-    char mode;
-    printf(&quot;Enter the Principle, Time (Year) and the Rate of Interest : &quot;);
-    scanf(&quot;%lf %lf %lf&quot;, &amp;p, &amp;t, &amp;r);
-    printf(&quot;Enter the mode of calculation (&#x27;s&#x27; for simple interest, &#x27;c&#x27; for compound interest) : &quot;);
-    scanf(&quot; %c&quot;, &amp;mode);
-    mode = tolower(mode);
-    switch (mode)
-    {
-    case &#x27;s&#x27;:
-        si = (p * t * r) / 100;
-        printf(&quot;\nSimple Interest : %g&quot;, si);
-        return 0;
-    case &#x27;c&#x27;:
-        ci = (p * pow(1 + (r / 100), t)) - p;
-        printf(&quot;\nCompound Interest : %g&quot;, ci);
-        return 0;
-    default:
-        printf(&quot;\nYou entered a wrong choice.&quot;);
-        return 1;
-    }
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">APC-PRAC-014.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-014.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-APC-PRAC-014_c', 'APC-PRAC-014.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-APC-PRAC-014_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-014.c">
-                                            <pre><code class="language-c">/* Write a program to calculate and display the maturity amount taking
-the sum and number of days as input.
-    No. of Days     Rate of Interest
-    ===========     ================
-    &lt;= 180          5.57 %
-    181 - 364       7.75 %
-    365 - 500       9.25 %
-    &gt; 500           9.15 %
-*/
-/* Author - Amit Dutta, Date - 31st October, 2025 */
-
-// This code has not been compiled.
-// If you find any issues, please create a new issue on GitHub regarding them.
-// Go to this link to create a new issue: https://github.com/notamitgamer/bsc/issues
-
-#include &lt;stdio.h&gt;
-
-int main()
-{
-    double p, t, r, si;
-    int days;
-    printf(&quot;Enter the Principle, Time (Days) : &quot;);
-    scanf(&quot;%lf %d&quot;, &amp;p, &amp;days);
-    if (days &gt; 0 &amp;&amp; days &lt;= 180)
-        r = 5.57;
-    else if (days &gt; 180 &amp;&amp; days &lt;= 364)
-        r = 7.75;
-    else if (days &gt; 364 &amp;&amp; days &lt;= 500)
-        r = 9.25;
-    else if (days &gt; 500)
-        r = 9.15;
-    si = (p * t * r) / 100;
-    printf(&quot;\nMaturity Amount : %d&quot;, si + p);
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">APC-PRAC-015.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-015.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-APC-PRAC-015_c', 'APC-PRAC-015.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-APC-PRAC-015_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-015.c">
-                                            <pre><code class="language-c">/* Write a program to display all numbers between lb (lower bound) and up (upper bound)
-which ends with digit 7 or divisible by 7. */
-/* Author - Amit Dutta, Date - 06th November, 2025 */
-// File Name - amit0611202501.c (LAB), APC-PRAC-015.c (Local)
-
-// This code has not been compiled.
-// If you find any issues, please create a new issue on GitHub regarding them.
-// Go to this link to create a new issue: https://github.com/notamitgamer/bsc/issues
-
-#include &lt;stdio.h&gt;
-
-int main()
-{
-    int lb, ub, i;
-    printf(&quot;Enter the lb, ub : &quot;);
-    scanf(&quot;%d %d&quot;, &amp;lb, &amp;ub);
-    printf(&quot;\nEnds with 7 :&quot;);
-    for (i = lb; i &lt;= ub; i++)
-    {
-        if (i % 10 == 7)
-        {
-            printf(&quot;  %d&quot;, i);
-        }
-    }
-    printf(&quot;\nDivisible by 7 :&quot;);
-    for (i = lb; i &lt;= ub; i++)
-    {
-        if (i % 7 == 0)
-        {
-            printf(&quot;  %d&quot;, i);
-        }
-    }
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">APC-PRAC-016.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-016.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-APC-PRAC-016_c', 'APC-PRAC-016.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-APC-PRAC-016_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-016.c">
-                                            <pre><code class="language-c">/* Write a program to check palindrome number. */
-/* Author - Amit Dutta, Date - 06th November, 2025 */
-// File Name - amit0611202502.c (LAB), APC-PRAC-016.c (Local)
-
-// This code has not been compiled.
-// If you find any issues, please create a new issue on GitHub regarding them.
-// Go to this link to create a new issue: https://github.com/notamitgamer/bsc/issues
-
-#include &lt;stdio.h&gt;
-
-int main()
-{
-    int num, temp, rev = 0;
-    printf(&quot;Enter the number : &quot;);
-    scanf(&quot;%d&quot;, &amp;num);
-    temp = num;
-    while (temp &gt; 0)
-    {
-        rev = (rev * 10) + (temp % 10);
-        temp /= 10;
-    }
-    if (rev == num)
-        printf(&quot;\nInput %d is a palindrome number.&quot;, num);
-    else
-        printf(&quot;\nInput %d is not a palindrome number.&quot;, num);
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">APC-PRAC-017.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-017.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-APC-PRAC-017_c', 'APC-PRAC-017.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-APC-PRAC-017_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-017.c">
-                                            <pre><code class="language-c">/* Write a program to check perfect number. */
-/* Author - Amit Dutta, Date - 06th November, 2025 */
-// File Name - amit0611202503.c (LAB), APC-PRAC-017.c (Local)
-
-// This code has not been compiled.
-// If you find any issues, please create a new issue on GitHub regarding them.
-// Go to this link to create a new issue: https://github.com/notamitgamer/bsc/issues
-
-#include &lt;stdio.h&gt;
-
-int main()
-{
-    int num, i, divisibleSum = 0;
-    printf(&quot;Enter a number : &quot;);
-    scanf(&quot;%d&quot;, &amp;num);
-    for (i = 1; i &lt;= num / 2; i++)
-    {
-        if (num % i == 0)
-        {
-            divisibleSum += i;
-        }
-    }
-    if (divisibleSum == num)
-        printf(&quot;\nInput %d ia a Perfect Number.&quot;, num);
-    else
-        printf(&quot;\nInput %d is NOT a Perfect Number.&quot;, num);
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">APC-PRAC-018.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-018.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-APC-PRAC-018_c', 'APC-PRAC-018.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-APC-PRAC-018_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-018.c">
-                                            <pre><code class="language-c">/* Write a program to check Automorphic Number. */
-/* Author - Amit Dutta, Date - 06th November, 2025 */
-// File Name - amit0611202504.c (LAB), APC-PRAC-018.c (Local)
-
-// This code has not been compiled.
-// If you find any issues, please create a new issue on GitHub regarding them.
-// Go to this link to create a new issue: https://github.com/notamitgamer/bsc/issues
-
-#include &lt;stdio.h&gt;
-#include &lt;math.h&gt;
-
-int main()
-{
-    int num, square, count = 0, temp, modNum;
-    printf(&quot;Enter the number : &quot;);
-    scanf(&quot;%d&quot;, &amp;num);
-    square = (int)pow(num, 2);
-    temp = num;
-    while (temp &gt; 0)
-    {
-        temp /= 10;
-        count++;
-    }
-    modNum = (int)pow(10, count);
-    temp = square % modNum;
-    if (num == temp)
-        printf(&quot;\nInput %d is a Automorphic Number.&quot;, num);
-    else
-        printf(&quot;\nInput %d is a Automorphic Number.&quot;, num);
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">APC-PRAC-019.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-019.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-APC-PRAC-019_c', 'APC-PRAC-019.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-APC-PRAC-019_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-019.c">
-                                            <pre><code class="language-c">/* Write a program to find hcf of two numbers */
-/* Author - Amit Dutta, Date - 07th November, 2025 */
-// File Name - amit0711202501.c (LAB), APC-PRAC-019.c (Local)
-
-// This code has not been compiled.
-// If you find any issues, please create a new issue on GitHub regarding them.
-// Go to this link to create a new issue: https://github.com/notamitgamer/bsc/issues
-
-#include &lt;stdio.h&gt;
-
-int main()
-{
-    int a, b, temp, temp_a, temp_b;
-    printf(&quot;Enter the a and b : &quot;);
-    scanf(&quot;%d %d&quot;, &amp;a, &amp;b);
-    temp_a = a, temp_b = b;
-    while (b &gt; 0)
-    {
-        temp = a;
-        a = b;
-        b = temp % b;
-    }
-    printf(&quot;\nHCF of %d and %d is : %d\n&quot;, temp_a, temp_b, a);
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">APC-PRAC-020.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-020.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-APC-PRAC-020_c', 'APC-PRAC-020.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-APC-PRAC-020_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-020.c">
-                                            <pre><code class="language-c">/* Write a program to check if two number is co-prime or not */
-/* Author - Amit Dutta, Date - 07th November, 2025 */
-// File Name - amit0711202502.c (LAB), APC-PRAC-020.c (Local)
-
-// This code has not been compiled.
-// If you find any issues, please create a new issue on GitHub regarding them.
-// Go to this link to create a new issue: https://github.com/notamitgamer/bsc/issues
-
-#include &lt;stdio.h&gt;
-
-int main()
-{
-    int a, b, temp, temp_a, temp_b;
-    printf(&quot;Enter the a and b : &quot;);
-    scanf(&quot;%d %d&quot;, &amp;a, &amp;b);
-    temp_a = a, temp_b = b;
-    while (b &gt; 0)
-    {
-        temp = a;
-        a = b;
-        b = temp % b;
-    }
-    if (a == 1)
-        printf(&quot;\n%d and %d is co-prime\n&quot;, temp_a, temp_b);
-    else
-        printf(&quot;\n%d and %d is NOT co-prime\n&quot;, temp_a, temp_b);
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">APC-PRAC-021.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-021.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-APC-PRAC-021_c', 'APC-PRAC-021.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-APC-PRAC-021_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-021.c">
-                                            <pre><code class="language-c">/* Write a program to check special number (sum of digit + product of digit = original number) */
-/* Author - Amit Dutta, Date - 07th November, 2025 */
-// File Name - amit0711202503.c (LAB), APC-PRAC-021.c (Local)
-
-// This code has not been compiled.
-// If you find any issues, please create a new issue on GitHub regarding them.
-// Go to this link to create a new issue: https://github.com/notamitgamer/bsc/issues
-
-#include &lt;stdio.h&gt;
-
-int main()
-{
-    int num, temp, sumOfDigit = 0, productOfDigit = 1;
-    printf(&quot;Enter the number to check if it is a special number : &quot;);
-    scanf(&quot;%d&quot;, &amp;num);
-    temp = num;
-    while (temp &gt; 0)
-    {
-        sumOfDigit += temp % 10;
-        productOfDigit *= temp % 10;
-        temp /= 10;
-    }
-    temp = sumOfDigit + productOfDigit;
-    if (num == temp)
-        printf(&quot;\nInput %d is a special number.&quot;, num);
-    else
-        printf(&quot;\nInput %d is not a special number.&quot;, num);
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">APC-PRAC-022.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-022.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-APC-PRAC-022_c', 'APC-PRAC-022.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-APC-PRAC-022_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-022.c">
-                                            <pre><code class="language-c">/* Write a program to accept a number and check whether the number is twisted prime or not */
-/* Author - Amit Dutta, Date - 07th November, 2025 */
-// File Name - amit0711202504.c (LAB), APC-PRAC-022.c (Local)
-
-// This code has not been compiled.
-// If you find any issues, please create a new issue on GitHub regarding them.
-// Go to this link to create a new issue: https://github.com/notamitgamer/bsc/issues
-
-#include &lt;stdio.h&gt;
-#include &lt;math.h&gt;
-#include &lt;stdbool.h&gt;
-
-bool checkPrime(int num)
-{
-    if (num &lt; 2)
-        return false;
-    if (num == 2)
-        return true;
-    if (num % 2 == 0)
-        return false;
-    int limit = (int)sqrt(num);
-    for (int i = 3; i &lt;= limit; i += 2)
-        if (num % i == 0)
-            return false;
-    return true;
-}
-
-int reverseNumber(int num)
-{
-    int reverse = 0;
-    while (num &gt; 0)
-    {
-        reverse = (reverse * 10) + (num % 10);
-        num /= 10;
-    }
-    return reverse;
-}
-
-int main()
-{
-    int num;
-    printf(&quot;Enter the number : &quot;);
-    scanf(&quot;%d&quot;, &amp;num);
-    if (!checkPrime(num))
-    {
-        printf(&quot;\nInput %d is not a prime number.&quot;, num);
-        return 0;
-    }
-    if (checkPrime(reverseNumber(num)))
-        printf(&quot;\nInput %d is a twisted prime number.&quot;, num);
-    else
-        printf(&quot;\nInput %d is not a twisted prime number.&quot;, num);
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">APC-PRAC-023.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-023.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-APC-PRAC-023_c', 'APC-PRAC-023.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-APC-PRAC-023_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-023.c">
-                                            <pre><code class="language-c">/* Pattern :
-    (a) 1, -3, 5, -7, 9, -11, ... upto n times
-    (b) 0, 3, 8, 15, ... upto n times
-*/
-/* Author - Amit Dutta, Date - 07th November, 2025 */
-// File Name - amit0711202505.c (LAB), APC-PRAC-023.c (Local)
-
-// This code has not been compiled.
-// If you find any issues, please create a new issue on GitHub regarding them.
-// Go to this link to create a new issue: https://github.com/notamitgamer/bsc/issues
-
-#include &lt;stdio.h&gt;
-#include &lt;stdbool.h&gt;
-
-int main()
-{
-    int n, i, temp = 1;
-    bool isNegative = true;
-    printf(&quot;Enter the n : &quot;);
-    scanf(&quot;%d&quot;, &amp;n);
-    printf(&quot;\nPattern A :&quot;);
-    for (i = 1; i &lt;= n; i++)
-    {
-        if (!isNegative)
-        {
-            printf(&quot;  %d&quot;, temp * -1);
-            isNegative = true;
-        }
-        else
-        {
-            printf(&quot;  %d&quot;, temp);
-            isNegative = false;
-        }
-        temp += 2;
-    }
-    printf(&quot;\nPattern B :&quot;);
-    for (i = 1; i &lt;= n; i++)
-    {
-        temp = (i * i) - 1;
-        printf(&quot;  %d&quot;, temp);
-    }
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">APC-PRAC-024.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-024.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-APC-PRAC-024_c', 'APC-PRAC-024.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-APC-PRAC-024_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-024.c">
-                                            <pre><code class="language-c">/*
-Pattern:
-	1
-	2	1
-	3	2	1
-	4	3	2	1
-	5	4	3	2	1
-*/
-/* Author = Amit Dutta, Date - 13th November, 2025 */
-// File Name - amit1311202501.c (LAB), APC-PRAC-024.c (Local)
-
-// This code has not been compiled.
-// If you find any issues, please create a new issue on GitHub regarding them.
-// Go to this link to create a new issue: https://github.com/notamitgamer/bsc/issues
-
-#include&lt;stdio.h&gt; 
-int main() {
-	int n, i, j;
-	printf(&quot;Enter the n : &quot;);
-	scanf(&quot;%d&quot;, &amp;n);
-	for(i = 1; i &lt;= n; i++) {
-		for(j = i; j &gt;= 1; j--) {
-			printf(&quot;%d    &quot;, j);
-		}
-		printf(&quot;\n&quot;);
-	}
-	return 0;
-}
-</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">APC-PRAC-025.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-025.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-APC-PRAC-025_c', 'APC-PRAC-025.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-APC-PRAC-025_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-025.c">
-                                            <pre><code class="language-c">/*
-Pattern:
-	5    4    3    2    1
-	5    4    3    2
-	5    4    3
-	5    4
-	5
-*/
-/* Author = Amit Dutta, Date - 13th November, 2025 */
-// File Name - amit1311202502.c (LAB), APC-PRAC-025.c (Local)
-
-// This code has not been compiled.
-// If you find any issues, please create a new issue on GitHub regarding them.
-// Go to this link to create a new issue: https://github.com/notamitgamer/bsc/issues
-
-#include&lt;stdio.h&gt; 
-int main() {
-	int n, i, j;
-	printf(&quot;Enter the n : &quot;);
-	scanf(&quot;%d&quot;, &amp;n);
-	for(i = 1; i &lt;= n; i++) {
-		for(j = n; j &gt;= i; j--) {
-			printf(&quot;%d    &quot;, j);
-		}
-		printf(&quot;\n&quot;);
-	}
-	return 0;
-}
-</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">APC-PRAC-026.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-026.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-APC-PRAC-026_c', 'APC-PRAC-026.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-APC-PRAC-026_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-026.c">
-                                            <pre><code class="language-c">/*
-Pattern:
-	5
-	5    4
-	5    4    3
-	5    4    3    2
-	5    4    3    2    1
-*/
-/* Author = Amit Dutta, Date - 13th November, 2025 */
-// File Name - amit1311202503.c (LAB), APC-PRAC-026.c (Local)
-
-// This code has not been compiled.
-// If you find any issues, please create a new issue on GitHub regarding them.
-// Go to this link to create a new issue: https://github.com/notamitgamer/bsc/issues
-
-#include&lt;stdio.h&gt; 
-int main() {
-	int n, i, j;
-	printf(&quot;Enter the n : &quot;);
-	scanf(&quot;%d&quot;, &amp;n);
-	for(i = n; i &gt;= 1; i--) {
-		for(j = n; j &gt;= i; j--) {
-			printf(&quot;%d    &quot;, j);
-		}
-		printf(&quot;\n&quot;);
-	}
-	return 0;
-}
-</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">APC-PRAC-027.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-027.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-APC-PRAC-027_c', 'APC-PRAC-027.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-APC-PRAC-027_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-027.c">
-                                            <pre><code class="language-c">/*
-Pattern:
-	1    2    3    4    5
-	2    3    4    5
-	3    4    5
-	4    5
-	5
-*/
-/* Author = Amit Dutta, Date - 13th November, 2025 */
-// File Name - amit1311202504.c (LAB), APC-PRAC-027.c (Local)
-
-// This code has not been compiled.
-// If you find any issues, please create a new issue on GitHub regarding them.
-// Go to this link to create a new issue: https://github.com/notamitgamer/bsc/issues
-
-#include&lt;stdio.h&gt; 
-int main() {
-	int n, i, j;
-	printf(&quot;Enter the n : &quot;);
-	scanf(&quot;%d&quot;, &amp;n);
-	for(i = 1; i &lt;= n; i++) {
-		for(j = i; j &lt;= n; j++) {
-			printf(&quot;%d    &quot;, j);
-		}
-		printf(&quot;\n&quot;);
-	}
-	return 0;
-}
-</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">APC-PRAC-028.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-028.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-APC-PRAC-028_c', 'APC-PRAC-028.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-APC-PRAC-028_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-028.c">
-                                            <pre><code class="language-c">/*
-Pattern:
-	1
-	2       3
-	4       5       6
-	7       8       9       10
-	11      12      13      14      15
-*/
-/* Author = Amit Dutta, Date - 13th November, 2025 */
-// File Name - amit1311202505.c (LAB), APC-PRAC-028.c (Local)
-
-// This code has not been compiled.
-// If you find any issues, please create a new issue on GitHub regarding them.
-// Go to this link to create a new issue: https://github.com/notamitgamer/bsc/issues
-
-#include&lt;stdio.h&gt; 
-int main() {
-	int n, i, j, temp = 1;
-	printf(&quot;Enter the n : &quot;);
-	scanf(&quot;%d&quot;, &amp;n);
-	for(i = 1; i &lt;= n; i++) {
-		for(j = 1; j &lt;= i; j++) {
-			printf(&quot;%d\t&quot;, temp);
-			temp++;
-		}
-		printf(&quot;\n&quot;);
-	}
-	return 0;
-}
-</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">APC-PRAC-029.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-029.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-APC-PRAC-029_c', 'APC-PRAC-029.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-APC-PRAC-029_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-029.c">
-                                            <pre><code class="language-c">/*
-Pattern:
-	1
-	1   0
-	1   0   1
-	1   0   1   0
-	1   0   1   0   1
-*/
-/* Author = Amit Dutta, Date - 13th November, 2025 */
-// File Name - amit1311202506.c (LAB), APC-PRAC-029.c (Local)
-
-// This code has not been compiled.
-// If you find any issues, please create a new issue on GitHub regarding them.
-// Go to this link to create a new issue: https://github.com/notamitgamer/bsc/issues
-
-#include&lt;stdio.h&gt; 
-int main() {
-	int n, i, j;
-	printf(&quot;Enter the n : &quot;);
-	scanf(&quot;%d&quot;, &amp;n);
-	for(i = 1; i &lt;= n; i++) {
-		for(j = 1; j &lt;= i; j++) {
-			if(j % 2 == 0) printf(&quot;0   &quot;);
-			else printf(&quot;1   &quot;);
-		}
-		printf(&quot;\n&quot;);
-	}
-	return 0;
-}
-</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">APC-PRAC-030.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-030.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-APC-PRAC-030_c', 'APC-PRAC-030.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-APC-PRAC-030_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-030.c">
-                                            <pre><code class="language-c">/*
-Pattern:
-	#
-	@   @
-	#   #   #
-	@   @   @   @
-	#   #   #   #   #
-*/
-/* Author = Amit Dutta, Date - 13th November, 2025 */
-// File Name - amit1311202507.c (LAB), APC-PRAC-030.c (Local)
-
-// This code has not been compiled.
-// If you find any issues, please create a new issue on GitHub regarding them.
-// Go to this link to create a new issue: https://github.com/notamitgamer/bsc/issues
-
-#include&lt;stdio.h&gt; 
-int main() {
-	int n, i, j;
-	printf(&quot;Enter the n : &quot;);
-	scanf(&quot;%d&quot;, &amp;n);
-	for(i = 1; i &lt;= n; i++) {
-		for(j = 1; j &lt;= i; j++) {
-			if(i % 2 == 0) printf(&quot;@   &quot;);
-			else printf(&quot;#   &quot;);
-		}
-		printf(&quot;\n&quot;);
-	}
-	return 0;
-}
-</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">APC-PRAC-031.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-031.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-APC-PRAC-031_c', 'APC-PRAC-031.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-APC-PRAC-031_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-031.c">
-                                            <pre><code class="language-c">/*
-Pattern:
-	1       2       3       4       5
-	6       7       8       9
-	10      11      12
-	13      14
-	15
-*/
-/* Author = Amit Dutta, Date - 13th November, 2025 */
-// File Name - amit1311202508.c (LAB), APC-PRAC-031.c (Local)
-
-// This code has not been compiled.
-// If you find any issues, please create a new issue on GitHub regarding them.
-// Go to this link to create a new issue: https://github.com/notamitgamer/bsc/issues
-
-#include&lt;stdio.h&gt; 
-int main() {
-	int n, i, j, temp = 1;
-	printf(&quot;Enter the n : &quot;);
-	scanf(&quot;%d&quot;, &amp;n);
-	for(i = n; i &gt;= 1; i--) {
-		for(j = 1; j &lt;= i; j++) {
-			printf(&quot;%d\t&quot;, temp);
-			temp++;
-		}
-		printf(&quot;\n&quot;);
-	}
-	return 0;
-}
-</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">APC-PRAC-032.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-032.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-APC-PRAC-032_c', 'APC-PRAC-032.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-APC-PRAC-032_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-032.c">
-                                            <pre><code class="language-c">/*
-Pattern:
-	A
-	B       B
-	C       C       C
-	D       D       D       D
-	E       E       E       E       E
-*/
-/* Author = Amit Dutta, Date - 13th November, 2025 */
-// File Name - amit1311202509.c (LAB), APC-PRAC-032.c (Local)
-
-// This code has not been compiled.
-// If you find any issues, please create a new issue on GitHub regarding them.
-// Go to this link to create a new issue: https://github.com/notamitgamer/bsc/issues
-
-#include&lt;stdio.h&gt; 
-int main() {
-	int n, i, j; char temp = &#x27;A&#x27;;
-	printf(&quot;Enter the n : &quot;);
-	scanf(&quot;%d&quot;, &amp;n);
-	for(i = 1; i &lt;= n; i++) {
-		for(j = 1; j &lt;= i; j++) {
-			printf(&quot;%c\t&quot;, temp);
-		}
-		temp++;
-		printf(&quot;\n&quot;);
-	}
-	return 0;
-}
-</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">APC-PRAC-033.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-033.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-APC-PRAC-033_c', 'APC-PRAC-033.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-APC-PRAC-033_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-033.c">
-                                            <pre><code class="language-c">/* Print the factorial of the digits off a number */
-/* Auhtor: Amit Dutta, Date: 20-11-2025 */
-
-// This code has not been compiled.
-// If you find any issues, please create a new issue on GitHub regarding them.
-// Go to this link to create a new issue: https://github.com/notamitgamer/bsc/issues
-
-#include &lt;stdio.h&gt;
-
-int factorial(int);
-
-int factorial(int n)
-{
-    int i, fact = 1;
-    for (i = 1; i &lt;= n; i++)
-        fact *= i;
-    return fact;
-}
-
-int main()
-{
-    int n, temp;
-    printf(&quot;Enter the number: &quot;);
-    scanf(&quot;%d&quot;, &amp;n);
-    if (n &lt; 0)
-    {
-        printf(&quot;Only non-negetive number is allowed.&quot;);
-        return 1;
-    }
-    temp = n;
-    while (temp &gt; 0)
-    {
-        printf(&quot;\nFactorial of %d: %d&quot;, temp % 10, factorial(temp % 10));
-        temp /= 10;
-    }
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">APC-PRAC-034.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-034.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-APC-PRAC-034_c', 'APC-PRAC-034.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-APC-PRAC-034_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-034.c">
-                                            <pre><code class="language-c">/* Take a Range as input from user and print the prime number between it. */
-/* Auhtor: Amit Dutta, Date: 20-11-2025 */
-
-// This code has not been compiled.
-// If you find any issues, please create a new issue on GitHub regarding them.
-// Go to this link to create a new issue: https://github.com/notamitgamer/bsc/issues
-
-#include &lt;stdio.h&gt;
-#include &lt;math.h&gt;
-
-int isPrime(int);
-
-int isPrime(int n)
-{
-    if (n &lt;= 1)
-        return 0;
-    if (n == 2)
-        return 1;
-    if (n % 2 == 0)
-        return 0;
-    int temp = (int)sqrt(n), i;
-    for (i = 3; i &lt;= temp; i += 2)
-        if (n % i == 0)
-            return 0;
-    return 1;
-}
-
-int main()
-{
-    int lb, ub, i;
-    printf(&quot;Enter the lower bound and the upper bound: &quot;);
-    scanf(&quot;%d %d&quot;, &amp;lb, &amp;ub);
-    printf(&quot;\nPrime numbers between %d and %d:  &quot;, lb, ub);
-    for (i = lb; i &lt;= ub; i++)
-        if (isPrime(i))
-            printf(&quot;%d  &quot;, i);
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">APC-PRAC-035.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-035.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-APC-PRAC-035_c', 'APC-PRAC-035.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-APC-PRAC-035_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-035.c">
-                                            <pre><code class="language-c">/* Print all the 3 and 4 digit palindrome number. */
-/* Auhtor: Amit Dutta, Date: 20-11-2025 */
-
-// This code has not been compiled.
-// If you find any issues, please create a new issue on GitHub regarding them.
-// Go to this link to create a new issue: https://github.com/notamitgamer/bsc/issues
-
-#include &lt;stdio.h&gt;
-
-int palindromeCheck(int);
-
-int palindromeCheck(int n)
-{
-    int temp = n, rev = 0;
-    while (temp &gt; 0)
-    {
-        rev = (rev * 10) + (temp % 10);
-        temp /= 10;
-    }
-    if (rev == n)
-        return 1;
-    else
-        return 0;
-}
-
-int main()
-{
-    int i;
-    printf(&quot;Palindrome number of 3 and 4 digits:  &quot;);
-    for (i = 100; i &lt;= 9999; i++)
-        if (palindromeCheck(i))
-            printf(&quot;%d  &quot;, i);
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">APC-PRAC-036.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-036.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-APC-PRAC-036_c', 'APC-PRAC-036.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-APC-PRAC-036_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-036.c">
-                                            <pre><code class="language-c">/* Check krishnamurty number. */
-/* Auhtor: Amit Dutta, Date: 20-11-2025 */
-
-// This code has not been compiled.
-// If you find any issues, please create a new issue on GitHub regarding them.
-// Go to this link to create a new issue: https://github.com/notamitgamer/bsc/issues
-
-#include &lt;stdio.h&gt;
-
-int factorial(int);
-int checkKrishnamurty(int);
-
-int factorial(int n)
-{
-    int i, fact = 1;
-    for (i = 1; i &lt;= n; i++)
-        fact *= i;
-    return fact;
-}
-
-int checkKrishnamurty(int n)
-{
-    int temp1 = n, temp2 = 0;
-    while (temp1 &gt; 0)
-    {
-        temp2 += factorial(temp1 % 10);
-        temp1 /= 10;
-    }
-    if (temp2 == n)
-        return 1;
-    else
-        return 0;
-}
-
-int main()
-{
-    int n;
-    printf(&quot;Enter the number: &quot;);
-    scanf(&quot;%d&quot;, &amp;n);
-    if (checkKrishnamurty(n))
-        printf(&quot;\nInput %d is a Krishnamurty number.&quot;, n);
-    else
-        printf(&quot;\ninput %d is not a Krishnamurty number.&quot;, n);
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">APC-PRAC-037.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-037.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-APC-PRAC-037_c', 'APC-PRAC-037.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-APC-PRAC-037_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-037.c">
-                                            <pre><code class="language-c">/* Show all the armstrong number between a range. */
-/* Author: Amit Dutta, Date: 21-11-2025 */
-
-// This code has not been compiled.
-// If you find any issues, please create a new issue on GitHub regarding them.
-// Go to this link to create a new issue: https://github.com/notamitgamer/bsc/issues
-
-#include &lt;stdio.h&gt;
-#include &lt;math.h&gt;
-
-#define lowerBound 100
-#define upperBound 999
-
-int isArmstrongNumber(int);
-
-int isArmstrongNumber(int n)
-{
-    int temp = n, sum = 0, count = 0;
-    while (temp &gt; 0)
-    {
-        count++;
-        temp /= 10;
-    }
-    temp = n;
-    while (temp &gt; 0)
-    {
-        sum += (int)pow(temp % 10, count);
-        temp /= 10;
-    }
-    return sum == n;
-}
-
-int main()
-{
-    int n, i, count = 0;
-    printf(&quot;Armstrong number between %d and %d are:  &quot;, lowerBound, upperBound);
-    for (i = lowerBound; i &lt;= upperBound; i++)
-        if (isArmstrongNumber(i))
-        {
-            printf(&quot;%d  &quot;, i);
-            count++;
-        }
-    printf(&quot;\n\nCount: %d\n&quot;, count);
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">APC-PRAC-038.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-038.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-APC-PRAC-038_c', 'APC-PRAC-038.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-APC-PRAC-038_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-038.c">
-                                            <pre><code class="language-c">/*
-Print all combinations of two two-digit numbers such that the sum of digits of both numbers is equal.
-Example: 23 and 41 → (2+3) = 5, (4+1) = 5.
-*/
-/* Author: Amit Dutta, Date: 21-11-2025 */
-
-// This code has not been compiled.
-// If you find any issues, please create a new issue on GitHub regarding them.
-// Go to this link to create a new issue: https://github.com/notamitgamer/bsc/issues
-
-#include &lt;stdio.h&gt;
-
-int main()
-{
-    printf(&quot;Combinations of two two-digit numbers such that the sum of digits of both numbers is equal:  &quot;);
-    int i, j, sum1, sum2, count = 0;
-    for (i = 10; i &lt;= 99; i++)
-    {
-        sum1 = (i % 10) + (i / 10);
-        for (j = i + 1; j &lt;= 99; j++)
-        {
-            sum2 = (j % 10) + (j / 10);
-            if (sum1 == sum2)
-            {
-                printf(&quot;(%d, %d)  &quot;, i, j);
-                count++;
-            }
-        }
-    }
-    printf(&quot;\nCount: %d\n&quot;, count);
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">APC-PRAC-039.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-039.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-APC-PRAC-039_c', 'APC-PRAC-039.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-APC-PRAC-039_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-039.c">
-                                            <pre><code class="language-c">/*
-Write a C program to print all unique combinations of three numbers (a, b, c) such that:
-1 ≤ a, b, c ≤ 30 and a² + b² = c² (Pythagorean triplets)
-*/
-/* Author: Amit Dutta, Date: 21-11-2025 */
-
-// This code has not been compiled.
-// If you find any issues, please create a new issue on GitHub regarding them.
-// Go to this link to create a new issue: https://github.com/notamitgamer/bsc/issues
-
-#include &lt;stdio.h&gt;
-
-int main()
-{
-    printf(&quot;a² + b² = c² :  &quot;);
-    int i, j, k, sq1, sq2, count = 0;
-    for (i = 1; i &lt;= 30; i++)
-    {
-        sq1 = i * i;
-        for (j = i + 1; j &lt;= 30; j++)
-        {
-            sq2 = j * j;
-            for (k = j + 1; k &lt;= 30; k++)
-            {
-                if (sq1 + sq2 == k * k)
-                {
-                    printf(&quot;(%d, %d, %d)  &quot;, i, j, k);
-                    count++;
-                }
-            }
-        }
-    }
-    printf(&quot;\n\nCount: %d\n&quot;, count);
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">APC-PRAC-040.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-040.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-APC-PRAC-040_c', 'APC-PRAC-040.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-APC-PRAC-040_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-040.c">
-                                            <pre><code class="language-c">/*
-Write a C program to count how many numbers between 100 and 999 have all distinct digits (e.g., 123, 709, 981).
-*/
-/* Author: Amit Dutta, Date: 21-11-2025 */
-
-// This code has not been compiled.
-// If you find any issues, please create a new issue on GitHub regarding them.
-// Go to this link to create a new issue: https://github.com/notamitgamer/bsc/issues
-
-#include &lt;stdio.h&gt;
-
-int main()
-{
-    int i, count = 0, n1, n2, n3;
-    printf(&quot;Distinct numbers between 100 and 999: &quot;);
-    for (i = 100; i &lt;= 999; i++)
-    {
-        n1 = i / 100;
-        n2 = (i % 100) / 10;
-        n3 = i % 10;
-        if (n1 != n2 &amp;&amp; n2 != n3 &amp;&amp; n1 != n3)
-        {
-            printf(&quot;%d  &quot;, i);
-            count++;
-        }
-    }
-    printf(&quot;\nCount: %d\n&quot;, count);
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">APC-PRAC-041.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-041.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-APC-PRAC-041_c', 'APC-PRAC-041.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-APC-PRAC-041_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-041.c">
-                                            <pre><code class="language-c">/*
-Write a C program to find and print all twin prime pairs between 1 and n using nested loops.
-(Twin primes are prime numbers having a difference of 2, like 11 and 13)
-*/
-/* Author: Amit Dutta, Date: 21-11-2025 */
-
-// This code has not been compiled.
-// If you find any issues, please create a new issue on GitHub regarding them.
-// Go to this link to create a new issue: https://github.com/notamitgamer/bsc/issues
-
-#include &lt;stdio.h&gt;
-#include &lt;math.h&gt;
-
-int isPrime(int n)
-{
-    if (n &lt; 2)
-        return 0;
-    if (n == 2)
-        return 1;
-    if (n % 2 == 0)
-        return 0;
-    int i, temp = (int)sqrt(n);
-    for (i = 3; i &lt;= temp; i += 2)
-        if (n % i == 0)
-            return 0;
-    return 1;
-}
-
-int main()
-{
-    int n, i, count = 0;
-    printf(&quot;enter the n: &quot;);
-    scanf(&quot;%d&quot;, &amp;n);
-    printf(&quot;\nAll the twin numbers:  &quot;);
-    for (i = 1; i &lt;= n - 2; i++)
-    {
-        if (isPrime(i))
-        {
-            if (isPrime(i + 2))
-            {
-                printf(&quot;(%d, %d)  &quot;, i, i + 2);
-                count++;
-            }
-        }
-    }
-    printf(&quot;\nCount; %d&quot;, count);
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">APC-S-001.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-S-001.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-APC-S-001_c', 'APC-S-001.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-APC-S-001_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-S-001.c">
-                                            <pre><code class="language-c">#include&lt;stdio.h&gt;
-int main() {
-	int a = 9, b = 4, c;
-	c = a + b;
-	printf(&quot;A + B = %d\n&quot;, c);
-	c = a / b;
-	printf(&quot;A / B = %d\n&quot;, c);
-	c = a % b;
-	printf(&quot;A %% B = %d\n&quot;, c);
-	return 0;
-}
-</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">APC-S-002.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-S-002.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-APC-S-002_c', 'APC-S-002.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-APC-S-002_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-S-002.c">
-                                            <pre><code class="language-c">#include&lt;stdio.h&gt;
-int main() {
-	int a = 5, b = 5, c = 10;
-	printf(&quot;a = b = %d\n&quot;, a == b);
-	printf(&quot;a &gt; b = %d\n&quot;, a &gt; b);
-	printf(&quot;a &lt; b = %d\n&quot;, a &lt; b);
-	return 0;
-}
-</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">APC-S-003.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-S-003.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-APC-S-003_c', 'APC-S-003.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-APC-S-003_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-S-003.c">
-                                            <pre><code class="language-c">#include &lt;stdio.h&gt;
-int main() {
-    int a = 5, b = 5, c = 10, result;
-
-    result = (a == b) &amp;&amp; (c &gt; b);
-    printf(&quot;Result is %d\n&quot;, result);
-
-    result = (a == b) &amp;&amp; (c &lt; b);
-    printf(&quot;Result is %d\n&quot;, result);
-
-    result = (a != b) || (c &lt; b);
-    printf(&quot;Result is %d\n&quot;, result);
-
-    result = (a != b) || (c &lt; b);
-    printf(&quot;Result is %d\n&quot;, result);
-
-    result = !(a != b);
-    printf(&quot;Result is %d\n&quot;, result);
-
-    result = !(a == b);
-    printf(&quot;Result is %d\n&quot;, result);
-
-    return 0;
-}
-</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">APC-S-004.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-S-004.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-APC-S-004_c', 'APC-S-004.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-APC-S-004_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-S-004.c">
-                                            <pre><code class="language-c">/* Program to print first 10 natural numbers using while loop. */
-/* Author - Amit Dutta, Date - 29th October, 2025 */
-
-/* 
- * Compiler Note: This source code is specifically designed for compilation
- * and execution within the ** Turbo C ** environment.
- *
- * Testing Disclaimer: Due to a lack of access to the required Turbo C
- * compiler software, this code has not been formally compiled or tested.
- */
-
-#include &lt;stdio.h&gt;
-#include &lt;conio.h&gt;
-
-void main()
-{
-    clrscr();
-    int x;
-    x = 1;
-    while (x &lt;= 10)
-    {
-        printf(&quot;%d  &quot;, x);
-        x++;
-    }
-    getch();
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">APC-S-005.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-S-005.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-APC-S-005_c', 'APC-S-005.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-APC-S-005_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-S-005.c">
-                                            <pre><code class="language-c">/* Write to reverse a number. */
-/* Author - Amit Dutta, Date - 29th October, 2025 */
-
-/*
- * Compiler Note: This source code is specifically designed for compilation
- * and execution within the ** Turbo C ** environment.
- *
- * Testing Disclaimer: Due to a lack of access to the required Turbo C
- * compiler software, this code has not been formally compiled or tested.
- */
-
-#include &lt;stdio.h&gt;
-#include &lt;conio.h&gt;
-
-void main()
-{
-    clrscr();
-    int n, reverse = 0, rem;
-    printf(&quot;Enter the numner : &quot;);
-    scanf(&quot;%d&quot;, &amp;n);
-    while (n != 0)
-    {
-        rem = n % 10;
-        reverse = reverse * 10 + rem;
-        n /= 10;
-    }
-    printf(&quot;Reversed Number : %d&quot;, reverse);
-    getch();
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">APC-S-006.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-S-006.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-APC-S-006_c', 'APC-S-006.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-APC-S-006_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-S-006.c">
-                                            <pre><code class="language-c">/* Write a program to print first 10 multiple of 5 */
-/* Author - Amit Dutta, Date - 29th October, 2025 */
-
-/*
- * Compiler Note: This source code is specifically designed for compilation
- * and execution within the ** Turbo C ** environment.
- *
- * Testing Disclaimer: Due to a lack of access to the required Turbo C
- * compiler software, this code has not been formally compiled or tested.
- */
-
-#include &lt;stdio.h&gt;
-#include &lt;conio.h&gt;
-
-void main()
-{
-    clrscr();
-    int a = 5, i = 1, res;
-    while (i &lt;= 10)
-    {
-        res = a * i;
-        printf(&quot;%d * %d = %d\n&quot;, a, i, res);
-        i++;
-    }
-    getch();
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">APC-S-007.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-S-007.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-APC-S-007_c', 'APC-S-007.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-APC-S-007_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-S-007.c">
-                                            <pre><code class="language-c">/* Write a program the sum of first 10 natural numbers. */
-/* Author - Amit Dutta, Date - 29th October, 2025 */
-
-/*
- * Compiler Note: This source code is specifically designed for compilation
- * and execution within the ** Turbo C ** environment.
- *
- * Testing Disclaimer: Due to a lack of access to the required Turbo C
- * compiler software, this code has not been formally compiled or tested.
- */
-
-#include &lt;stdio.h&gt;
-#include &lt;conio.h&gt;
-
-void main()
-{
-    clrscr();
-    int i, sum = 0;
-    for (i = 1; i &lt;= 10; i++)
-    {
-        sum += i;
-    }
-    printf(&quot;\nSum of the first natural number : %d&quot;, sum);
-    getch();
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">APC-S-008.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-S-008.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-APC-S-008_c', 'APC-S-008.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-APC-S-008_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-S-008.c">
-                                            <pre><code class="language-c">/* Write a program to print the sum of two matrix as input given by the user. */
-/* Author: Amit Dutta, Date: 18-11-2025 */
-
-#include &lt;stdio.h&gt;
-
-int main()
-{
-    int rows, cols, i, j;
-    printf(&quot;Enter the number of rows and columns: &quot;);
-    scanf(&quot;%d %d&quot;, &amp;rows, &amp;cols);
-
-    int a[rows][cols], b[rows][cols], c[rows][cols];
-
-    printf(&quot;Enter the elements of matrix A (%d x %d): \n&quot;, rows, cols);
-    for (i = 0; i &lt; rows; i++)
-        for (j = 0; j &lt; cols; j++)
-        {
-            printf(&quot;Position %d%d: &quot;, i, j);
-            scanf(&quot;%d&quot;, &amp;a[i][j]);
-        }
-    printf(&quot;\nMatrix A: \n&quot;);
-    for (i = 0; i &lt; rows; i++)
-    {
-        for (j = 0; j &lt; cols; j++)
-            printf(&quot;%d  &quot;, a[i][j]);
-        printf(&quot;\n&quot;);
-    }
-
-    printf(&quot;\nEnter the elements of matrix B(%d x %d): \n&quot;, rows, cols);
-    for (i = 0; i &lt; rows; i++)
-        for (j = 0; j &lt; cols; j++)
-        {
-            printf(&quot;Position %d%d: &quot;, i, j);
-            scanf(&quot;%d&quot;, &amp;b[i][j]);
-        }
-    printf(&quot;\nMatrix B: \n&quot;);
-    for (i = 0; i &lt; rows; i++)
-    {
-        for (j = 0; j &lt; cols; j++)
-            printf(&quot;%d  &quot;, b[i][j]);
-        printf(&quot;\n&quot;);
-    }
-
-    for (i = 0; i &lt; rows; i++)
-        for (j = 0; j &lt; cols; j++)
-            c[i][j] = a[i][j] + b[i][j];
-
-    printf(&quot;\nResult Matrix: \n&quot;);
-    for (i = 0; i &lt; rows; i++)
-    {
-        for (j = 0; j &lt; cols; j++)
-            printf(&quot;%d  &quot;, c[i][j]);
-        printf(&quot;\n&quot;);
-    }
-
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">APC-S-009.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-S-009.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-APC-S-009_c', 'APC-S-009.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-APC-S-009_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-S-009.c">
-                                            <pre><code class="language-c">/* Write a program to find the upper and lower triangular matrix. */
-/* Author: Amit Dutta, Date: 18-11-2025 */
-
-#include &lt;stdio.h&gt;
-
-int main()
-{
-    int i, j, rows, cols;
-    printf(&quot;\nEnter the number of rows and columns : &quot;);
-    scanf(&quot;%d %d&quot;, &amp;rows, &amp;cols);
-
-    if (rows != cols)
-    {
-        printf(&quot;Triangular matrix definitions only apply to square matrices (rows == columns).\n&quot;);
-        return 1;
-    }
-
-    int matrix[rows][cols];
-
-    printf(&quot;Enter the elements of matrix (%d x %d): \n&quot;, rows, cols);
-    for (i = 0; i &lt; rows; i++)
-        for (j = 0; j &lt; cols; j++)
-        {
-            printf(&quot;Position %d%d: &quot;, i, j);
-            scanf(&quot;%d&quot;, &amp;matrix[i][j]);
-        }
-    printf(&quot;\nMatrix: \n&quot;);
-    for (i = 0; i &lt; rows; i++)
-    {
-        for (j = 0; j &lt; cols; j++)
-            printf(&quot;%d  &quot;, matrix[i][j]);
-        printf(&quot;\n&quot;);
-    }
-
-    printf(&quot;\nUpper triangular of the Matrix: \n&quot;);
-    for (i = 0; i &lt; rows; i++)
-    {
-        for (j = 0; j &lt; cols; j++)
-        {
-            if (j &gt;= i)
-                printf(&quot;%d  &quot;, matrix[i][j]);
-            else
-                printf(&quot;~  &quot;);
-        }
-        printf(&quot;\n&quot;);
-    }
-
-    printf(&quot;\nLower triangular of the Matrix: \n&quot;);
-    for (i = 0; i &lt; rows; i++)
-    {
-        for (j = 0; j &lt; cols; j++)
-        {
-            if (j &lt;= i)
-                printf(&quot;%d  &quot;, matrix[i][j]);
-            else
-                printf(&quot;~  &quot;);
-        }
-        printf(&quot;\n&quot;);
-    }
-
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">APC-S-010.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-S-010.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-APC-S-010_c', 'APC-S-010.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-APC-S-010_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-S-010.c">
-                                            <pre><code class="language-c">/* Write a program to input a new element at a specific position of an array.
-    a[] = {4, 5, 2, 10, 6, 9, 8}, newItem = 7, position = 3
-*/
-/* Author: Amit Dutta, Date: 18-11-2025 */
-
-#include &lt;stdio.h&gt;
-
-int main()
-{
-    int a[8] = {4, 5, 2, 10, 6, 9, 8};
-    int i;
-
-    printf(&quot;Elemnts of the array:  &quot;);
-    for (i = 0; i &lt;= 6; i++)
-        printf(&quot;%d  &quot;, a[i]);
-
-    printf(&quot;\nMethod 1:  &quot;);
-    for (i = 7; i &gt;= 4; i--)
-        a[i] = a[i - 1];
-    a[3] = 7;
-    for (i = 0; i &lt;= 7; i++)
-        printf(&quot;%d  &quot;, a[i]);
-
-    // another method
-    printf(&quot;\nMethod 2:  &quot;);
-    int b[8] = {4, 5, 2, 10, 6, 9, 8};
-    int temp1 = 7;
-    for (i = 3; i &lt;= 7; i++)
-    {
-        int temp2 = b[i];
-        b[i] = temp1;
-        temp1 = temp2;
-    }
-    for (i = 0; i &lt;= 7; i++)
-        printf(&quot;%d  &quot;, b[i]);
-
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">APC-S-011.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-S-011.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-APC-S-011_c', 'APC-S-011.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-APC-S-011_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-S-011.c">
-                                            <pre><code class="language-c">/* Linear search */
-/* Author: Amit Dutta, Date: 19-11-2025 */
-
-#include &lt;stdio.h&gt;
-
-int main()
-{
-    int elementCount, i, keyElement;
-
-    printf(&quot;Enter the number of element you want to add: &quot;);
-    scanf(&quot;%d&quot;, &amp;elementCount);
-
-    int elements[elementCount];
-
-    for (i = 0; i &lt; elementCount; i++)
-    {
-        printf(&quot;Enter Element %d: &quot;, i + 1);
-        scanf(&quot;%d&quot;, &amp;elements[i]);
-    }
-
-    printf(&quot;\nEnter the Key Element you want to search: &quot;);
-    scanf(&quot;%d&quot;, &amp;keyElement);
-    for (i = 0; i &lt; elementCount; i++)
-        if (elements[i] == keyElement)
-        {
-            printf(&quot;\nKey Element %d is found in %d position.&quot;, keyElement, i);
-            return 0;
-        }
-    printf(&quot;\nKey Element %d is not found.&quot;, keyElement);
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">APC-S-012.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-S-012.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-APC-S-012_c', 'APC-S-012.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-APC-S-012_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-S-012.c">
-                                            <pre><code class="language-c">/* Write a program to check if a matrix is a sparx matrix. */
-/* Author: Amit Dutta, Date: 19-11-2025 */
-
-#include &lt;stdio.h&gt;
-
-int main()
-{
-    int i, j, row, col, count = 0;
-
-    printf(&quot;Enter the number of rows and columns in the matrix: &quot;);
-    scanf(&quot;%d %d&quot;, &amp;row, &amp;col);
-
-    int matrix[row][col];
-
-    for (i = 0; i &lt; row; i++)
-        for (j = 0; j &lt; col; j++)
-        {
-            printf(&quot;Postion %d%d: &quot;, i, j);
-            scanf(&quot;%d&quot;, &amp;matrix[i][j]);
-            if (matrix[i][j] == 0)
-                count++;
-        }
-
-    printf(&quot;\nEntered Matrix: \n&quot;);
-    for (i = 0; i &lt; row; i++)
-    {
-        for (j = 0; j &lt; col; j++)
-            printf(&quot;%d  &quot;, matrix[i][j]);
-        printf(&quot;\n&quot;);
-    }
-
-    if (count &gt; (row * col) / 2)
-        printf(&quot;\nEntered matrix is a Sparx Matrix.&quot;);
-    else
-        printf(&quot;\nEntered matrix is not a Sparx Matrix&quot;);
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">APC-S-013.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-S-013.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-APC-S-013_c', 'APC-S-013.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-APC-S-013_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-S-013.c">
-                                            <pre><code class="language-c">/* Write a fuction to calculate the average of an array */
-/* Author: Amit Dutta, Date: 26-11-2025 */
-
-#include &lt;stdio.h&gt;
-
-double average(int []);
-
-int main()
-{
-    int marks[10], i;
-    printf(&quot;\nEnter 10 numbers: \n&quot;);
-    for (i = 0; i &lt;= 9; i++)
-    {
-        printf(&quot;Enter number %d: &quot;, i + 1);
-        scanf(&quot;%d&quot;, &amp;marks[i]);
-    }
-    printf(&quot;\nAverage = %g&quot;, average(marks));
-    return 0;
-}
-
-double average(int marks[10])
-{
-    int sum = 0;
-    for (int i = 0; i &lt;= 9; i++)
-        sum += marks[i];
-    return sum / 10.0;
-}
-</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">APC-SPS-001.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-SPS-001.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-APC-SPS-001_c', 'APC-SPS-001.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-APC-SPS-001_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-SPS-001.c">
-                                            <pre><code class="language-c">// WAP to perform arithmatic operation on integer data
-
-#include&lt;stdio.h&gt;
-int main() {
-	int a, b, sum, sub, multi, div, mod;
-	printf(&quot;Enter 1st number : &quot;);
-	scanf(&quot;%d&quot;, &amp;a);
-	printf(&quot;Enter 2nd number : &quot;);
-	scanf(&quot;%d&quot;, &amp;b);
-	sum = a + b;
-	sub = a - b;
-	multi = a * b;
-	div = a / b;
-	mod = a % b;
-	printf(&quot;\nSum = %d&quot;, sum);
-	printf(&quot;\nSubtraction = %d&quot;, sub);
-	printf(&quot;\nMultiplication = %d&quot;, multi);
-	printf(&quot;\nDivision = %d&quot;, div);
-	printf(&quot;\nModulas = %d&quot;, div);
-	return 0;
-}
-</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">APC-SPS-002.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-SPS-002.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-APC-SPS-002_c', 'APC-SPS-002.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-APC-SPS-002_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-SPS-002.c">
-                                            <pre><code class="language-c">/* WAP to swap two integers. Display both numbers
-before and after swap */
-
-#include&lt;stdio.h&gt;
-int main() {
-	int a = 10, b = 20, temp;
-	printf(&quot;Before swap A : %d, B : %d&quot;, a, b);
-	temp = a;
-	a = b;
-	b = temp;
-	printf(&quot;\nAfter swap A : %d, B : %d&quot;, a, b);
-	return 0;
-}
-</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">APC-SPS-003.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-SPS-003.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-APC-SPS-003_c', 'APC-SPS-003.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-APC-SPS-003_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-SPS-003.c">
-                                            <pre><code class="language-c">/* Bitwise AND &#x27;&amp;&#x27; */
-
-#include&lt;stdio.h&gt;
-int main() {
-	unsigned int a = 4, b = 5, c = 6;
-	unsigned int x, y;
-	x = a &amp; b;
-	y = b &amp; c;
-	printf(&quot;x = %u y = %u&quot;, x, y);
-	return 0;
-}
-</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">APC-SPS-004.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-SPS-004.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-APC-SPS-004_c', 'APC-SPS-004.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-APC-SPS-004_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-SPS-004.c">
-                                            <pre><code class="language-c">#include&lt;stdio.h&gt;
-int main() {
-	int x = 25, y = 19, z;
-	z = x - y;
-	z = z &amp; x ;
-	printf(&quot;Z = %d&quot;, z);
-	return 0;
-}
-</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">APC-SPS-005.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-SPS-005.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-APC-SPS-005_c', 'APC-SPS-005.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-APC-SPS-005_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-SPS-005.c">
-                                            <pre><code class="language-c">/* Bitwise OR &#x27;|&#x27; */
-
-#include&lt;stdio.h&gt;
-int main() {
-	int x = 12, y = 14, z = 10, res;
-	x++;
-	z++;
-	x = x + y + z;
-	res = x | y;
-	z = res | z;
-	printf(&quot;x = %d y = %d z = %d res = %d&quot;, x, y, z, res);
-	return 0;
-}
-</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">APC-SPS-006.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-SPS-006.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-APC-SPS-006_c', 'APC-SPS-006.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-APC-SPS-006_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-SPS-006.c">
-                                            <pre><code class="language-c">/* Bitwise NOT &#x27;~&#x27; */
-
-#include&lt;stdio.h&gt;
-int main() {
-	int x = 12, y = 15, z = 21;
-	int res, res1, res2;
-	res = x &gt; 10;
-	res1 = ~res;
-	res2 = ~x;
-	printf(&quot;REs = %d, Res1 = %d, Res2 = %d&quot;, res, res1, res2);
-	return 0;
-}
-</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">APC-SPS-007.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-SPS-007.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-APC-SPS-007_c', 'APC-SPS-007.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-APC-SPS-007_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-SPS-007.c">
-                                            <pre><code class="language-c">/* WAP to check a number is even or odd using bitwise operator */
-
-#include&lt;stdio.h&gt;
-int main() {
-	int x, res = 1;
-	printf(&quot;Enter a number : &quot;);
-	scanf(&quot;%d&quot;, &amp;x);
-	res = res &amp; x;
-	if (res == 0) {
-		printf(&quot;\nInput %d is a even number.&quot;, x);
-	}
-	else {
-		printf(&quot;\nInput %d is a odd number.&quot;, x);
-	}
-	return 0;
-}
-</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">APC-SPS-008.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-SPS-008.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-APC-SPS-008_c', 'APC-SPS-008.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-APC-SPS-008_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-SPS-008.c">
-                                            <pre><code class="language-c">/* WAP to calculate area of circle by accepting radius as input */
-/* Author : Amit Dutta, Date : 15th September, 2025 */
-
-#include&lt;stdio.h&gt;
-#include&lt;math.h&gt;
-int main() {
-	double r, area;
-	printf(&quot;Enter the radius of circle : &quot;);
-	scanf(&quot;%lf&quot;, &amp;r);
-	area = M_PI * r * r;
-	printf(&quot;\nArea : %lf&quot;, area);
-	return 0;
-}
-</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">P001.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P001.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-P001_c', 'P001.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-P001_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P001.c">
-                                            <pre><code class="language-c">//sample code
-// Author - Amit Dutta, Date - Unknown
-
-#include&lt;stdio.h&gt;
-int main() {
-	printf(&quot;Hello world&quot;);
-	return 0;
-}
-</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">P002.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P002.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-P002_c', 'P002.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-P002_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P002.c">
-                                            <pre><code class="language-c">//sample code with a new line charecter
-// Author - Amit Dutta, Date - Unknown
-
-#include&lt;stdio.h&gt;
-int main() {
-	printf(&quot;Hello\nworld&quot;);
-	return 0;
-}
-</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">P003.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P003.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-P003_c', 'P003.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-P003_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P003.c">
-                                            <pre><code class="language-c">//WAP to perform addtion and multiplication of two integer numbers
-// Author - Amit Dutta, Date - Unknown
-
-#include&lt;stdio.h&gt;
-int main() {
-	int a, b, sum, multi;
-	printf(&quot;Enter the 1st number : &quot;);
-	scanf(&quot;%d&quot;,&amp;a);
-	printf(&quot;Enter the 2nd number : &quot;);
-	scanf(&quot;%d&quot;,&amp;b);
-	sum = a + b;
-	multi = a * b;
-	printf(&quot;\nSum = %d&quot;
-		   &quot;\nMultiplication = %d&quot;,sum,multi);
-	return 0;
-}
-</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">P004.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P004.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-P004_c', 'P004.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-P004_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P004.c">
-                                            <pre><code class="language-c">/* WAP to find and display the value of given expression :
-((x+3)/4) - ((2x+4)/3) taking the value of x = 5 */
-// Author - Amit Dutta, Date - Unknown
-
-#include&lt;stdio.h&gt;
-int main() {
-	double x =5, result;
-	result = ((x + 3) / 4) - ((2 * x + 4) / 3);
-	printf(&quot;Result = %lf&quot;,result);
-	return 0;
-}
-</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">P005.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P005.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-P005_c', 'P005.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-P005_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P005.c">
-                                            <pre><code class="language-c">/* A person is paid Rs. 455 for each day he works and fined
-Rs. 150 for each day he remains absent. WAP to calculate his
-monthly income taking the number of days present as input. */
-// Author - Amit Dutta, Date - Unknown
-
-#include&lt;stdio.h&gt;
-int main() {
-	int daily_wage = 455, fine = 150, present, absent, income;
-	printf(&quot;No of days present : &quot;);
-	scanf(&quot;%d&quot;, &amp;present);
-	absent = 30 - present;
-	income = (present * 455) - (absent * 150);
-	printf(&quot;\nIncome : %d&quot;,income);
-	return 0;
-}
-</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">P006.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P006.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-P006_c', 'P006.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-P006_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P006.c">
-                                            <pre><code class="language-c">/* The normal temperature of human body
-is 98.6 Degree Fahrenheit. WAP to convert the temperature
-to Degree Celcius and display the output. */
-// Author - Amit Dutta, Date - Unknown
-
-#include&lt;stdio.h&gt;
-int main() {
-	double f = 98.6, c;
-	c = ((f - 32) * 5) / 9;
-	printf(&quot;Temperature in Celcius is : %lf&quot;,c);
-	return 0;
-}
-</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">P007.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P007.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-P007_c', 'P007.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-P007_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P007.c">
-                                            <pre><code class="language-c">/* A shopkeeper offers 10% discount on printed
-price of a digital camera. However a customer has
-to pay 6% GST on the remaining amount. WAP to
-calculate and display the amount to paid by the
-customer, taking the printed price as input. */
-// Author - Amit Dutta, Date - Unknown
-
-#include&lt;stdio.h&gt;
-int main() {
-	double mrp, final_price, temp;
-	printf(&quot;Enter the printed price : &quot;);
-	scanf(&quot;%lf&quot;, &amp;mrp);
-	temp = mrp * 0.90;
-	final_price = temp * 1.06;
-	printf(&quot;\nCustomer have to pay : %lf&quot;, final_price);
-	return 0;
-}
-</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">P008.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P008.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-P008_c', 'P008.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-P008_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P008.c">
-                                            <pre><code class="language-c">/* A shopkeeper offers 30% discount on purchasing an
-item whereas the other shopkeeper offers 2 successive
-discount of 20% and 10% for purchasing the same item.
-WAP to caompute and display the discounted price of the
-item by taking the price as input. */
-// Author - Amit Dutta, Date - Unknown
-
-#include&lt;stdio.h&gt;
-int main() {
-	double mrp, shop1, shop2, temp;
-	printf(&quot;Enter the price : &quot;);
-	scanf(&quot;%lf&quot;, &amp;mrp);
-	shop1 = mrp * 0.70;
-	temp = mrp * 0.80;
-	shop2 = temp * 0.90;
-	printf(&quot;\nShopkeeper 1 price : %lf&quot;
-			&quot;\nShopkeeper 2 price : %lf&quot;,shop1,shop2);
-	return 0;
-}
-</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">P009.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P009.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-P009_c', 'P009.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-P009_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P009.c">
-                                            <pre><code class="language-c">/* WAP to calculate gross and net salary
-by accepting basic salary as input.
-IMP :	DA = 30% of Basic Pay
-		HRA = 20% of Basic Pay
-		PF = 12.5% of Basic Pay
- Gross Salary = Basic Pay + DA + HRA
- Net Salary = Gross Salary - PF
-*/
-// Author - Amit Dutta, Date - Unknown
-
-#include&lt;stdio.h&gt;
-int main() {
-	double bs, da, hra, pf, gs, ns;
-	printf(&quot;Enter the Basic Salary : &quot;);
-	scanf(&quot;%lf&quot;, &amp;bs);
-	da = bs * 0.3;
-	hra = bs * 0.2;
-	pf = bs * 0.125;
-	gs = bs + da + hra;
-	ns = gs - pf;
-	printf(&quot;\nGross Salary : %lf&quot;
-		   &quot;\nNet Salary   : %lf&quot;, gs, ns);
-	return 0;
-}
-</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">P010.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P010.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-P010_c', 'P010.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-P010_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P010.c">
-                                            <pre><code class="language-c">/* WAP to find and display the difference
-between compound Interest and Simple Interest.
-Take principle amount as input.
-Hint :	si = (p * r * t) / 100
-		a = p * ((1 + (r / 100)) ^ t)
-		ci = a - p
-*/
-// Author - Amit Dutta, Date - Unknown
-
-#include&lt;stdio.h&gt;
-#include&lt;math.h&gt;
-int main() {
-	double p, r, t, si, a, ci, dif;
-	printf(&quot;Enter the principle amount, rate of interest, time in year : &quot;);
-	scanf(&quot;%lf %lf %lf&quot;, &amp;p, &amp;r, &amp;t);
-	si = (p * r * t) / 100;
-	a = p * pow((1 + (r / 100)), t);
-	ci = a - p;
-	dif = ci - si;
-	printf(&quot;\nSimple Interest     : %lf&quot;
-		   &quot;\nCompound Interest   : %lf&quot;
-		   &quot;\nInterest Difference : %lf&quot;, si, ci, dif);
-	return 0;
-}
-</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">P011.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P011.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-P011_c', 'P011.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-P011_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P011.c">
-                                            <pre><code class="language-c">/* The time period of a simple pendulam is
-given by the formula :
-	t = 2 * pi * square_root(l / g)
-WAP to calculate T take length(L) and gravity
-as input
-*/
-// Author - Amit Dutta, Date - Unknown
-
-#include&lt;stdio.h&gt;
-#include&lt;math.h&gt;
-int main() {
-	double l, g, t;
-	printf(&quot;Enter the Length and Gravity measures : &quot;);
-	scanf(&quot;%lf %lf&quot;, &amp;l, &amp;g);
-	t = 2 * M_PI * sqrt(l / g);
-	// using M_PI variable for PI value from math.h header file
-	printf(&quot;\nTime Period : %lf&quot;, t);
-	return 0;
-}
-</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">P012.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P012.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-P012_c', 'P012.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-P012_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P012.c">
-                                            <pre><code class="language-c">/* WAP to swap two integer variable without
-using third  variable */
-// using Approch Mode : simple, slow, time consuming
-// Author - Amit Dutta, Date - Unknown
-
-#include&lt;stdio.h&gt;
-int main() {
-	int a = 4, b = 6;
-	printf(&quot;Before Swap : A = %d, B = %d&quot;, a, b);
-	a = a + b;
-	b = a - b;
-	a = a - b;
-	printf(&quot;\nAfter Swap : A = %d, B = %d&quot;, a, b);
-	return 0;
-}
-</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">P013.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P013.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-P013_c', 'P013.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-P013_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P013.c">
-                                            <pre><code class="language-c">/* WAP to swap two integer variable without
-using third  variable */
-// using Approch Mode : complex, fast, less time consumimg
-// Author - Amit Dutta, Date - Unknown
-
-#include&lt;stdio.h&gt;
-#include&lt;math.h&gt;
-int main() {
-	int a = 4, b = 6;
-	printf(&quot;Before Swap : A = %d, B = %d&quot;, a, b);
-	a = a ^ b;
-	b = a ^ b;
-	a = a ^ b;
-	printf(&quot;\nAfter Swap : A = %d, B = %d&quot;, a, b);
-	return 0;
-}
-</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">P014.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P014.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-P014_c', 'P014.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-P014_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P014.c">
-                                            <pre><code class="language-c">/* WAP to accept the diagonal of
-square. Find and display the area and
-perimeter of the square. */
-// Author - Amit Dutta, Date - Unknown
-
-#include&lt;stdio.h&gt;
-#include&lt;math.h&gt;
-int main() {
-	double d, side, area, per;
-	printf(&quot;Enter the diagonal : &quot;);
-	scanf(&quot;%lf&quot;, &amp;d);
-	side =  d / sqrt (2);
-	area = side * side;
-	per = 4 * side;
-	printf(&quot;\nArea of the Square      : %lf&quot;
-		   &quot;\nPerimeter of the Square : %lf&quot;, area, per);
-	return 0;
-}
-</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">P015.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P015.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-P015_c', 'P015.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-P015_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P015.c">
-                                            <pre><code class="language-c">/*WAP to accept number of days and
-display it after converting into
-number of years, months and days */
-// Author - Amit Dutta, Date - Unknown
-
-#include&lt;stdio.h&gt;
-int main() {
-	int day, month, year, temp;
-	printf(&quot;Enter the number of days : &quot;);
-	scanf(&quot;%d&quot;, &amp;day);
-	temp = day;
-	year = day / 365;
-	day = day % 365;
-	month = day / 30;
-	day = day % 30;
-	printf(&quot;\n%d Days = %d Years %d Months %d Days&quot;, temp, year, month, day);
-	return 0;
-}
-</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">P016.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P016.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-P016_c', 'P016.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-P016_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P016.c">
-                                            <pre><code class="language-c">/* WAP to calculate and display radius of a
-circle by taking the area as input */
-// Author - Amit Dutta, Date - Unknown
-
-#include&lt;stdio.h&gt;
-#include&lt;math.h&gt;
-int main() {
-	double area, r;
-	printf(&quot;Enter the area of a circle : &quot;);
-	scanf(&quot;%lf&quot;, &amp;area);
-	r = sqrt((7 * area) / 22);
-	printf(&quot;\nRadius : %lf&quot;, r);
-	return 0;
-}
-</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">P017.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P017.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-P017_c', 'P017.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-P017_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P017.c">
-                                            <pre><code class="language-c">/* Find maximum between three number. */
-// Author - Amit Dutta, Date - Unknown
-
-#include &lt;stdio.h&gt;
-int main()
-{
-    int a, b, c, max;
-    printf(&quot;Enter the value for a, b, c : &quot;);
-    scanf(&quot;%d %d %d&quot;, &amp;a, &amp;b, &amp;c);
-    max = a;
-    if (max &lt; b)
-        max = b;
-    if (max &lt; c)
-        max = c;
-    printf(&quot;Maximum : %d&quot;, max);
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">P018.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P018.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-P018_c', 'P018.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-P018_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P018.c">
-                                            <pre><code class="language-c">/* WAP to input the cost price and selling price and
-calculate profit, profit percentage, loss percentage or
-display the manage nither profit nor loss. */
-// Author - Amit Dutta, Date - Unknown
-
-#include &lt;stdio.h&gt;
-int main()
-{
-    double cost, sell, pro, prop, loss, lossp;
-    printf(&quot;Enter the cost and selling price : &quot;);
-    scanf(&quot;%lf %lf&quot;, &amp;cost, &amp;sell);
-    if (sell &gt; cost)
-    {
-        pro = sell - cost;
-        prop = (pro / cost) * 100;
-        printf(&quot;Profit : RS %g, Profit Percentage : %g&quot;, pro, prop);
-    }
-    else if (sell &lt; cost)
-    {
-        loss = cost - sell;
-        lossp = (loss / cost) * 100;
-        printf(&quot;Loss   : RS %g, Loss Percentage   : %g&quot;, loss, lossp);
-    }
-    else
-        printf(&quot;Neither loss nor Profit.&quot;);
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">P019.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P019.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-P019_c', 'P019.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-P019_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P019.c">
-                                            <pre><code class="language-c">/* WAP to input the distance covered and calculate
-the amount to be paid by the passanger.
-    Distance        Rate
-    =&lt;5KM           RS 90
-    next 10KM       RS 20/KM
-    next 10KM       RS 10/KM
-    more than 25KM  RS 9/KM
-*/
-// Author - Amit Dutta, Date - Unknown
-
-#include &lt;stdio.h&gt;
-int main()
-{
-    double dis, amt;
-    printf(&quot;Enter the distance : &quot;);
-    scanf(&quot;%lf&quot;, &amp;dis);
-    if (dis &lt;= 5.0)
-        amt = 90.0;
-    else if (dis &gt; 5.0 &amp;&amp; dis &lt;= 15.0)
-        amt = 90.0 + (dis - 5.0) * 20;
-    else if (dis &gt; 15.0 &amp;&amp; dis &lt;= 25.0)
-        amt = 90.0 + 200.0 + (dis - 15.0) * 10;
-    else if (dis &gt; 25.0)
-        amt = 90.0 + 200.0 + 100.0 + (dis - 25.0) * 9;
-    printf(&quot;\nAmount to be paid : %g&quot;, amt);
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">P020.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P020.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-P020_c', 'P020.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-P020_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P020.c">
-                                            <pre><code class="language-c">/* WAP to calculate and display the maturity amount
-taking the sum and number of days as input.
-    No. of Days         Rate of Interest
-    Upto 180 days       5.5 %
-    181 to 364 days     7.5 %
-    exact 365 days      9.0 %
-    more than 365 days  8.5 %
-*/
-// Author - Amit Dutta, Date - Unknown
-
-#include &lt;stdio.h&gt;
-int main()
-{
-    double nod, amt, s, i;
-    printf(&quot;Enter the amount and the time in days : &quot;);
-    scanf(&quot;%lf %lf&quot;, &amp;s, &amp;nod);
-    if (nod &lt;= 180)
-        i = (s * 5.5 * (nod / 365)) / 100;
-    else if (nod &gt; 180.0 &amp;&amp; nod &lt;= 364.0)
-        i = (s * 7.5 * (nod / 365)) / 100;
-    else if (nod == 365.0)
-        i = (s * 9.0 * 1) / 100;
-    else if (nod &gt; 365.0)
-        i = (s * 8.5 * (nod / 365)) / 100;
-    amt = s + i;
-    printf(&quot;Amount to be paid : %g&quot;, amt);
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">P021.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P021.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-P021_c', 'P021.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-P021_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P021.c">
-                                            <pre><code class="language-c">/* WAP to input a positive number and check if it is a perfect
-square number or not. */
-/* Author - Amit Dutta, Date - 8th OCT, 2025 */
-// This code has not been compiled. 
-// If you find any issues, please create a new issue on GitHub regarding them.
-
-#include &lt;stdio.h&gt;
-#include &lt;math.h&gt;
-int main()
-{
-    int n, temp;
-    double sr;
-    printf(&quot;Enter the number : &quot;);
-    scanf(&quot;%d&quot;, &amp;n);
-    sr = sqrt(n);
-    temp = (int)sr;
-    if (temp * temp == n)
-        printf(&quot;\nThis is a perfect square.&quot;);
-    else
-        printf(&quot;\nThis is not a perfect square.&quot;);
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">P022.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P022.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-P022_c', 'P022.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-P022_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P022.c">
-                                            <pre><code class="language-c">/* WAP to find out smallest of three numbers without using if_else block. */
-/* Author - Amit Dutta, Date - 8th OCT, 2025 */
-// This code has not been compiled. 
-// If you find any issues, please create a new issue on GitHub regarding them.
-
-#include &lt;stdio.h&gt;
-int main()
-{
-    int a, b, c, min;
-    printf(&quot;Enter three number : &quot;);
-    scanf(&quot;%d %d %d&quot;, &amp;a, &amp;b, &amp;c);
-    min = (a &lt; b &amp;&amp; a &lt; c) ? a : (b &lt; a &amp;&amp; b &lt; c) ? b
-                                                  : c;
-    printf(&quot;Minimum = %d&quot;, min);
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">P023.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P023.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-P023_c', 'P023.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-P023_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P023.c">
-                                            <pre><code class="language-c">/* WAP to input the total cost and compute the amount to be paid
-by the customer.  */
-/* Author - Amit Dutta, Date - 8th OCT, 2025 */
-// This code has not been compiled. 
-// If you find any issues, please create a new issue on GitHub regarding them.
-
-#include &lt;stdio.h&gt;
-int main()
-{
-    double cost, amt;
-    printf(&quot;Enter the total cost : &quot;);
-    scanf(&quot;%lf&quot;, &amp;cost);
-    if (cost &lt;= 2000)
-        amt = cost * 0.94;
-    else if (cost &gt; 2000 &amp;&amp; cost &lt;= 5000)
-        amt = cost * 0.9;
-    else if (cost &gt; 5000 &amp;&amp; cost &lt;= 10000)
-        amt = cost * 0.85;
-    else if (cost &gt; 10000)
-        amt = cost * 0.8;
-    printf(&quot;\nAmount to be paid : %g&quot;, amt);
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">P024.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P024.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-P024_c', 'P024.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-P024_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P024.c">
-                                            <pre><code class="language-c">/* WAP to check whether a year is leapyear or not. */
-/* Author - Amit Dutta, Date - 8th OCT, 2025 */
-// This code has not been compiled. 
-// If you find any issues, please create a new issue on GitHub regarding them.
-
-#include &lt;stdio.h&gt;
-int main()
-{
-    int year;
-    printf(&quot;Enter the year : &quot;);
-    scanf(&quot;%d&quot;, &amp;year);
-    if (year % 4 == 0 &amp;&amp; year % 100 != 0)
-        printf(&quot;\nYear %d is a leapyear.&quot;, year);
-    else if (year % 400 == 0)
-        printf(&quot;\nYear %d is a leapyear (Century).&quot;, year);
-    else
-        printf(&quot;\nYear %d is not a leapyear.&quot;, year);
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">P025.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P025.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-P025_c', 'P025.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-P025_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P025.c">
-                                            <pre><code class="language-c">/* WAP to input the electricity unit consumed and calculate the total
-bill amount according to the given condition :
-    for 1st 50 unit            Rs. 0.50 per unit
-    next 100 unit              Rs. 0.75 per unit
-    next 100 unit              Rs. 1.20 per unit
-    above 250 unit             Rs. 1.50 per unit
-And additional charge of 20 percent is added to the bill.
-*/
-/* Author - Amit Dutta, Date - 8th OCT, 2025 */
-// This code has not been compiled. 
-// If you find any issues, please create a new issue on GitHub regarding them.
-
-#include &lt;stdio.h&gt;
-int main()
-{
-    double unit, amt;
-    printf(&quot;Enter the electricity consp(unit) : &quot;);
-    scanf(&quot;%lf&quot;, &amp;amt);
-    if (unit &lt;= 50)
-        amt = unit * 0.50;
-    else if (unit &gt; 50 &amp;&amp; unit &lt;= 50)
-        amt = 25 + ((unit - 50) * 0.75);
-    else if (unit &gt; 150 &amp;&amp; unit &lt;= 250)
-        amt = 25 + 75 + ((unit - 150) * 1.20);
-    else if (unit &gt; 250)
-        amt = 25 + 75 + 120 + ((unit - 250) * 1.50);
-    amt = amt * 1.20;
-    printf(&quot;\nAmount to be paid : %g&quot;, amt);
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">P026.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P026.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-P026_c', 'P026.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-P026_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P026.c">
-                                            <pre><code class="language-c">/* WAP to input sum (p), rate of interest (r), time (t) and type of interest
-(&#x27;s&#x27; for simple interest amd &#x27;c&#x27; for compound interest). Calculate and display
-the interest earned
-    si = (p * r * t) / 100
-    compoundInterest = p * ((1 + r / 100)^t - 1)
-*/
-/* Author - Amit Dutta, Date - 8th OCT, 2025 */
-
-#include &lt;stdio.h&gt;
-#include &lt;math.h&gt;
-#include &lt;ctype.h&gt;
-int main()
-{
-    double principalAmount, rateOfInterest, timePeriod, simpleInterest, compoundInterest;
-    char mode;
-    printf(&quot;Enter the principle amount, Rate of interest, Time : &quot;);
-    scanf(&quot;%lf %lf %lf&quot;, &amp;principalAmount, &amp;rateOfInterest, &amp;timePeriod);
-    printf(&quot;\nEnter the mode (&#x27;s&#x27; : simple interest, &#x27;c&#x27; : compound interest) : &quot;);
-    scanf(&quot; %c&quot;, &amp;mode);
-    mode = tolower(mode);
-    switch (mode)
-    {
-    case &#x27;s&#x27;:
-        simpleInterest = (principalAmount * rateOfInterest * timePeriod) / 100;
-        printf(&quot;\nSimple Interest : %g&quot;, simpleInterest);
-        break;
-    case &#x27;c&#x27;:
-        compoundInterest = principalAmount * (pow((1 + rateOfInterest / 100), timePeriod) - 1);
-        printf(&quot;\nCompound Interest : %g&quot;, compoundInterest);
-        break;
-    default:
-        printf(&quot;\nInvalid Input&quot;);
-        return 1;
-    }
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">P027.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P027.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-P027_c', 'P027.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-P027_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P027.c">
-                                            <pre><code class="language-c">/*  Purchase        Discount on     Discount on
-     Amount            Laptop         Desktop
-    --------        -----------     -----------
-    Upto 20k            3.0%            5.0%
-    20001 - 50k         5.0%            7.5%
-    50001 - 75k         7.5%           10.5%
-    more than 75k      10.0%           15.0%
-WAP to input amount of purchase and type of purchase (&#x27;L&#x27; : laptop, &#x27;D&#x27; : desktop)
-and display the discount amount and the discounted price (Net Amount).
-*/
-/* Author - Amit Dutta, Date - 8th OCT, 2025 */
-// This code has not been compiled.
-// If you find any issues, please create a new issue on GitHub regarding them.
-
-#include &lt;stdio.h&gt;
-#include &lt;ctype.h&gt;
-int main()
-{
-    double principal_amount, desktop_discount, laptop_discount, discount_amount, discounted_price;
-    char choice;
-    printf(&quot;Enter the purchase amount : &quot;);
-    scanf(&quot;%lf&quot;, &amp;principal_amount);
-    printf(&quot;Type of purchase (&#x27;L&#x27; : Laptop, &#x27;D&#x27; : Desktop) : &quot;);
-    scanf(&quot; %c&quot;, &amp;choice);
-    choice = toupper(choice);
-    if (principal_amount &lt;= 20000)
-    {
-        laptop_discount = 0.03;
-        desktop_discount = 0.05;
-    }
-    else if (principal_amount &gt; 20000 &amp;&amp; principal_amount &lt;= 50000)
-    {
-        laptop_discount = 0.05;
-        desktop_discount = 0.075;
-    }
-    else if (principal_amount &gt; 50000 &amp;&amp; principal_amount &lt;= 75000)
-    {
-        laptop_discount = 0.075;
-        desktop_discount = 0.105;
-    }
-    else if (principal_amount &gt; 75000)
-    {
-        laptop_discount = 0.1;
-        desktop_discount = 0.15;
-    }
-    switch (choice)
-    {
-    case &#x27;L&#x27;:
-        discount_amount = principal_amount * laptop_discount;
-        discounted_price = principal_amount - discount_amount;
-        printf(&quot;\nDiscount Amount : %g&quot;
-               &quot;\nDiscounted Price : %g&quot;,
-               discount_amount, discounted_price);
-        break;
-    case &#x27;D&#x27;:
-        discount_amount = principal_amount * desktop_discount;
-        discounted_price = principal_amount - discount_amount;
-        printf(&quot;\nDiscount Amount : %g&quot;
-               &quot;\nDiscounted Price : %g&quot;,
-               discount_amount, discounted_price);
-        break;
-    default:
-        printf(&quot;\nInvalid Input.&quot;);
-        return 1;
-    }
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">P028.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P028.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-P028_c', 'P028.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-P028_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P028.c">
-                                            <pre><code class="language-c">/* WAP to calculate factorial of a number */
-/* Author - Amit Dutta, Date - 11th OCT, 2025 */
-
-#include &lt;stdio.h&gt;
-int main()
-{
-    int i = 1, num, fact = 1;
-    printf(&quot;Enter the number : &quot;);
-    if (scanf(&quot;%d&quot;, &amp;num) != 1)
-    {
-        printf(&quot;\nPlease enter a number.&quot;);
-        return 1;
-    }
-    if (num == 0)
-    {
-        printf(&quot;\nFactorial of 0 : 1&quot;);
-        return 0;
-    }
-    if (num &lt; 0)
-    {
-        printf(&quot;\nFactorial of %d : UNDEFINED&quot;, num);
-        return 0;
-    }
-    while (i &lt;= num)
-    {
-        fact = fact * i;
-        i++;
-    }
-    printf(&quot;Factorial of %d : %d&quot;, num, fact);
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">P029.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P029.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-P029_c', 'P029.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-P029_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P029.c">
-                                            <pre><code class="language-c">/* WAP to perform addition of first n natural numbers. sum = 1 + 2 + 3 + ... */
-/* Author - Amit Dutta, Date - 11th OCT, 2025 */
-
-#include &lt;stdio.h&gt;
-int main()
-{
-    int num, i = 0, result = 0;
-    printf(&quot;Enter the value for n : &quot;);
-    if (scanf(&quot;%d&quot;, &amp;num) != 1)
-    {
-        printf(&quot;\nPlease enter a number.&quot;);
-        return 1;
-    }
-    if (num &lt; 1)
-    {
-        printf(&quot;\nPlease enter a positive number.&quot;);
-        return 1;
-    }
-    while (i &lt;= num)
-    {
-        result = result + i;
-        i++;
-    }
-    printf(&quot;\nResult : %d&quot;, result);
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">P030.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P030.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-P030_c', 'P030.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-P030_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P030.c">
-                                            <pre><code class="language-c">/* Display the first 15 terms of the series. */
-/* Author - Amit Dutta, Date - 11th OCT, 2025 */
-
-#include &lt;stdio.h&gt;
-#include &lt;math.h&gt;
-
-int main()
-{
-    int i, r;
-
-    // 3, 6, 9, 12, ...
-    {
-        i = 3, r = 0;
-        printf(&quot;Series 1 (3, 6, 9, 12, ...) :&quot;);
-        while (i &lt;= 15)
-        {
-            r = r + 3;
-            printf(&quot;  %d&quot;, r);
-            i++;
-        }
-    }
-
-    // 1, 4, 9, 16, ...
-    {
-        i = 1;
-        printf(&quot;\nSeries 2 (1, 4, 9, 16, ...) :&quot;);
-        while (i &lt;= 15)
-        {
-            printf(&quot;  %d&quot;, i * i);
-            i++;
-        }
-    }
-
-    // 4, 8, 16, 32, ...
-    {
-        i = 1, r = 2;
-        printf(&quot;\nSeries 3 (4, 8, 16, 32, ...) :&quot;);
-        while (i &lt;= 15)
-        {
-            r = r * 2;
-            printf(&quot;  %d&quot;, r);
-            i++;
-        }
-    }
-
-    // 0, 7, 26, ...
-    {
-        i = 1, r;
-        printf(&quot;\nSeries 4 (0, 7, 26, ...) :&quot;);
-        while (i &lt;= 15)
-        {
-            r = (int)pow(i, 3) - 1;
-            printf(&quot;  %d&quot;, r);
-            i++;
-        }
-    }
-
-    return 0;
-}
-</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">P031.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P031.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-P031_c', 'P031.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-P031_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P031.c">
-                                            <pre><code class="language-c">/* Find the sum of the series */
-/* Author - Amit Dutta, Date - 11th OCT, 2025 */
-
-#include &lt;stdio.h&gt;
-#include &lt;math.h&gt;
-
-int main()
-{
-    double a, res, n;
-    int i;
-
-    // s = (a ^ 2) + (a ^ 2 / 2) + (a ^ 2 / 3) + ... + (a ^ 2 / 10)
-    {
-        res = 0, i = 1;
-        printf(&quot;--- s = (a ^ 2) + (a ^ 2 / 2) + (a ^ 2 / 3) + ... + (a ^ 2 / 10) ---&quot;);
-        printf(&quot;\nEnter the number : &quot;);
-        scanf(&quot;%lf&quot;, &amp;a);
-        while (i &lt;= 10)
-        {
-            res = res + ((a * a) / i);
-            i++;
-        }
-        printf(&quot;S = %g&quot;, res);
-    }
-
-    // s = 1 + (2 ^ 2 / a) + (3 ^ 3 / a ^ 2) + ... + n
-    {
-        res = 0, i = 0;
-        printf(&quot;\n--- // s = 1 + (2 ^ 2 / a) + (3 ^ 3 / a ^ 2) + ... + n ---&quot;);
-        printf(&quot;\nEnter the value for a and n : &quot;);
-        scanf(&quot; %lf %lf&quot;, &amp;a, &amp;n);
-        while (i &lt;= n - 1)
-        {
-            res = res + (pow(i + 1, i + 1) / pow(a, i));
-            i++;
-        }
-        printf(&quot;S = %g&quot;, res);
-    }
-
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">P032.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P032.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-P032_c', 'P032.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-P032_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P032.c">
-                                            <pre><code class="language-c">/* WAP to input a number and check whether it is a Niven number
-or not. (When a number is divisible by its sum of digit) e.g. : n = 126*/
-/* Author - Amit Dutta, Date - 11th OCT, 2025 */
-
-#include &lt;stdio.h&gt;
-int main()
-{
-    int n, temp, sod = 0;
-    printf(&quot;Enter the number : &quot;);
-    scanf(&quot;%d&quot;, &amp;n);
-    temp = n;
-    while (temp &gt; 0)
-    {
-        sod = sod + (temp % 10);
-        temp = temp / 10;
-    }
-    if (n % sod == 0)
-        printf(&quot;\nIt is Niven number.&quot;);
-    else
-        printf(&quot;\nIt is not a Niven number.&quot;);
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">P033.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P033.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-P033_c', 'P033.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-P033_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P033.c">
-                                            <pre><code class="language-c">/* WAP to calculate the sum of even digits and odd digits. Number will be provided by user. */
-/* Author - Amit Dutta, Date - 18th OCT, 2025 */
-
-#include &lt;stdio.h&gt;
-int main()
-{
-    int inp, odd = 0, even = 0, temp;
-    printf(&quot;Enter the number : &quot;);
-    scanf(&quot;%d&quot;, &amp;inp);
-    temp = inp;
-    while (temp &gt; 0)
-    {
-        if ((temp % 10) % 2 == 0)
-            even += temp % 10;
-        else
-            odd += temp % 10;
-        temp /= 10;
-    }
-    printf(&quot;\nSum of even : %d&quot;
-           &quot;\nSum of odd : %d&quot;,
-           even, odd);
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">P034.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P034.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-P034_c', 'P034.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-P034_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P034.c">
-                                            <pre><code class="language-c">/* Get sum of even position digit and odd position digit */
-/* Counting starts from the rightmost digit as position 1 (Odd). */
-/* Author - Amit Dutta, Date - 18th OCT, 2025 */
-
-#include &lt;stdio.h&gt;
-int main()
-{
-    int inp, temp, index = 1, even = 0, odd = 0;
-    printf(&quot;Enter the numebr : &quot;);
-    scanf(&quot;%d&quot;, &amp;inp);
-    temp = inp;
-    while (temp &gt; 0)
-    {
-        if (index % 2 == 0)
-            even += temp % 10;
-        else
-            odd += temp % 10;
-        temp /= 10;
-        index++;
-    }
-    printf(&quot;\nSum of even position digits : %d&quot;
-           &quot;\nSum of odd position digits : %d&quot;,
-           even, odd);
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">P035.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P035.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-P035_c', 'P035.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-P035_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P035.c">
-                                            <pre><code class="language-c">/* WAP to input an int number and display the product of the successors
-of even digits of the number entered by user. */
-/* Author - Amit Dutta, Date - 18th OCT, 2025 */
-
-#include &lt;stdio.h&gt;
-#include &lt;stdbool.h&gt;
-int main()
-{
-    int n, res = 1, temp;
-    bool status = false;
-    printf(&quot;Enter the number : &quot;);
-    scanf(&quot;%d&quot;, &amp;n);
-    temp = n;
-    while (temp &gt; 0)
-    {
-        if ((temp % 10) % 2 == 0)
-        {
-            res *= (temp % 10) + 1;
-            status = true;
-        }
-        temp /= 10;
-    }
-    if (!status)
-        printf(&quot;\nThere is no even digits.&quot;);
-    else
-        printf(&quot;\nThe product of the successors of even digits of the number %d is : %d&quot;, n, res);
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">P036.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P036.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-P036_c', 'P036.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-P036_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P036.c">
-                                            <pre><code class="language-c">/* sum = a + (a^2)/2 + (a^3)/3 + ... + (a^n)/n */
-/* Author - Amit Dutta, Date - 18th OCT, 2025 */
-
-#include &lt;stdio.h&gt;
-#include &lt;math.h&gt;
-
-int main()
-{
-    double a, sum = 0;
-    int n, i;
-    printf(&quot;Enter value for a and n : &quot;);
-    scanf(&quot;%lf %d&quot;, &amp;a, &amp;n);
-    for (i = 1; i &lt;= n; i++)
-        sum += pow(a, i) / i;
-    printf(&quot;\nSum = %g&quot;, sum);
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">P037.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P037.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-P037_c', 'P037.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-P037_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P037.c">
-                                            <pre><code class="language-c">/* sum = 1 + 1+2/1*2 + 1+2+3/1*2*3 + ... + 1+2+3+...+n/1*2*3*...*n */
-/* Author - Amit Dutta, Date - 18th OCT, 2025 */
-
-#include &lt;stdio.h&gt;
-
-int main()
-{
-    double sum = 0, temp1 = 0, temp2 = 1;
-    int n, i;
-    printf(&quot;Enter value for n : &quot;);
-    scanf(&quot;%d&quot;, &amp;n);
-    for (i = 1; i &lt;= n; i++)
-    {
-        temp1 += i;
-        temp2 *= i;
-        sum += temp1 / temp2;
-    }
-    printf(&quot;\nSum = %g&quot;, sum);
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">P038.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P038.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-P038_c', 'P038.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-P038_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P038.c">
-                                            <pre><code class="language-c">/* Write a program to check prime number */
-/* Author - Amit Dutta, Date - 27th OCT, 2025 */
-
-#include &lt;stdio.h&gt;
-#include &lt;math.h&gt;
-#include &lt;stdbool.h&gt;
-
-int main()
-{
-    int num, i, endCheckDigit;
-    bool isPrime = true;
-    printf(&quot;Enter the number : &quot;);
-    if (scanf(&quot;%d&quot;, &amp;num) != 1)
-    {
-        printf(&quot;\nOnly a number is allowed, not a character.&quot;);
-        return 1;
-    }
-    if (num &lt;= 0)
-    {
-        printf(&quot;\nOnly postive number is allowed.&quot;);
-        return 1;
-    }
-    if (num == 1)
-    {
-        printf(&quot;\nInput 1 is not a prime number.&quot;
-               &quot;\nHas only one positive divisor (itself), not exactly two.&quot;
-               &quot;\nRule: Prime number should have exactly two distinct positive divisors: 1 and itself&quot;);
-        return 0;
-    }
-    if (num == 2)
-    {
-        printf(&quot;\nInput 2 is a prime number.&quot;
-               &quot;\n(Note: 2 is only Even Prime Number)&quot;);
-        return 0;
-    }
-    if (num % 2 == 0)
-    {
-        printf(&quot;\nInput %d is not a prime number.&quot;, num);
-        return 0;
-    }
-    endCheckDigit = sqrt(num);
-    for (i = 3; i &lt;= endCheckDigit; i += 2)
-    {
-        if (num % i == 0)
-        {
-            isPrime = false;
-            printf(&quot;\nInput %d is not prime number.&quot;, num);
-            return 0;
-        }
-    }
-    if (isPrime)
-    {
-        printf(&quot;\nInput %d is a prime number.&quot;, num);
-    }
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">P039.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P039.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-P039_c', 'P039.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-P039_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P039.c">
-                                            <pre><code class="language-c">/* Write a program to print all the factors of a postive integer */
-/* Author - Amit Dutta, Date - 27th OCT, 2025 */
-
-#include &lt;stdio.h&gt;
-
-int main()
-{
-    int num, i;
-    printf(&quot;Enter a number : &quot;);
-    scanf(&quot;%d&quot;, &amp;num);
-    printf(&quot;\nFactors of %d : &quot;, num);
-    for (i = 1; i &lt;= num / 2; i++)
-    {
-        if (num % i == 0)
-        {
-            printf(&quot;  %d&quot;, i);
-        }
-    }
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">P040.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P040.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-P040_c', 'P040.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-P040_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P040.c">
-                                            <pre><code class="language-c">/* Write a program to calculate HCF of two positive number */
-/* Author - Amit Dutta, Date - 27th OCT, 2025 */
-
-#include &lt;stdio.h&gt;
-int main()
-{
-    int a, b, temp;
-    printf(&quot;Enter two number : &quot;);
-    scanf(&quot;%d %d&quot;, &amp;a, &amp;b);
-    while (b &gt; 0)
-    {
-        temp = a;
-        a = b;
-        b = temp % b;
-    }
-    printf(&quot;HCF = %d&quot;, a);
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">P041.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P041.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-P041_c', 'P041.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-P041_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P041.c">
-                                            <pre><code class="language-c">/* Write a program to enter two numbers and check they are co-prime or not.
-    co-prime when HCF = 1
-*/
-/* Author - Amit Dutta, Date - 27th OCT, 2025 */
-
-#include &lt;stdio.h&gt;
-int main()
-{
-    int a, b, temp, temp_a, temp_b;
-    printf(&quot;Enter two number : &quot;);
-    scanf(&quot;%d %d&quot;, &amp;a, &amp;b);
-    temp_a = a;
-    temp_b = b;
-    while (b &gt; 0)
-    {
-        temp = a;
-        a = b;
-        b = temp % b;
-    }
-    if (a == 1)
-    {
-        printf(&quot;\n(%d, %d) is co-prime.&quot;, temp_a, temp_b);
-    }
-    else
-    {
-        printf(&quot;\n(%d, %d) is not co-prime.&quot;, temp_a, temp_b);
-    }
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">P042.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P042.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-P042_c', 'P042.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-P042_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P042.c">
-                                            <pre><code class="language-c">/* Write a program to accept a number and check whether the number
-is twisted prime or not. */
-/* Author - Amit Dutta, Date - 27th OCT, 2025 */
-
-#include &lt;stdio.h&gt;
-#include &lt;math.h&gt;
-
-int main()
-{
-    int n, t, i, r, rev, prime = 1;
-    printf(&quot;Enter the number : &quot;);
-    scanf(&quot;%d&quot;, &amp;n);
-    for (i = 2; i &lt;= (int)sqrt(n); i++)
-    {
-        if (n % i == 0)
-        {
-            prime = 0;
-            break;
-        }
-    }
-    if (prime)
-    {
-        printf(&quot;%d is a prime number.&quot;, n);
-        t = n;
-        rev = 0;
-        prime = 1;
-        while (t &gt; 0)
-        {
-            r = t % 10;
-            rev = rev * 10 + r;
-            t = t / 10;
-        }
-        for (i = 2; i &lt;= (int)sqrt(rev); i++)
-        {
-            if (rev % i == 0)
-            {
-                prime = 0;
-                break;
-            }
-        }
-        if (prime)
-        {
-            printf(&quot;\n%d and %d are prime numbers.. TWISTED PRIME&quot;, n, rev);
-        }
-        else
-        {
-            printf(&quot;\n%d is non prime&quot;, rev);
-        }
-    }
-    else
-    {
-        printf(&quot;\n%d is non prime.&quot;, n);
-    }
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">P043.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P043.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-P043_c', 'P043.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-P043_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P043.c">
-                                            <pre><code class="language-c">/* Write a program to check palindrome number. */
-/* Author - Amit Dutta, Date - 27th OCT, 2025 */
-
-#include &lt;stdio.h&gt;
-int main()
-{
-    int num, temp, rev;
-    printf(&quot;Enter the number : &quot;);
-    scanf(&quot;%d&quot;, &amp;num);
-    temp = num;
-    rev = 0;
-    while (temp &gt; 0)
-    {
-        rev = (rev * 10) + (temp % 10);
-        temp /= 10;
-    }
-    if (num == rev)
-    {
-        printf(&quot;%d is a palindrome number.&quot;, num);
-    }
-    else
-    {
-        printf(&quot;%d is not a palindrome number.&quot;, num);
-    }
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">P044.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P044.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-P044_c', 'P044.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-P044_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P044.c">
-                                            <pre><code class="language-c">/* Write a program to input a number and check whether the
-number is Pronic number or not.
-    Pronic Number: The number which is the product of two numbers
-                   which is the product of two consecutive integer.
-                   Ex: 20 = 4 * 5
-*/
-/* Author - Amit Dutta, Date - 27th OCT, 2025 */
-
-// using boolean...
-/*
-#include &lt;stdio.h&gt;
-#include &lt;math.h&gt;
-#include &lt;stdbool.h&gt;
-
-int main()
-{
-    int num, iterationIndex;
-    bool isPronic = false;
-    printf(&quot;Enter the number : &quot;);
-    if (scanf(&quot;%d&quot;, &amp;num) != 1)
-    {
-        printf(&quot;\nYou have to enter a number, not an character or symbol.&quot;);
-        return 1;
-    }
-    if (num &lt; 1)
-    {
-        printf(&quot;\nOnly postive number is allowed.&quot;);
-        return 1;
-    }
-    for (iterationIndex = 1; iterationIndex &lt;= num / 2; iterationIndex++)
-    {
-        if (iterationIndex * (iterationIndex + 1) == num)
-        {
-            printf(&quot;\nInput %d is a Pronic Number.&quot;, num);
-            isPronic = true;
-            break;
-        }
-    }
-    if(!isPronic)
-    {
-        printf(&quot;\nInput %d is not a Pronic Number.&quot;, num);
-    }
-    return 0;
-}
-*/
-
-// using direct return method (more efficient and generally preferred)...
-
-#include &lt;stdio.h&gt;
-#include &lt;math.h&gt;
-
-int main()
-{
-    int num, iterationIndex, iterationLimit;
-    printf(&quot;Enter the number : &quot;);
-    if (scanf(&quot;%d&quot;, &amp;num) != 1)
-    {
-        printf(&quot;\nYou have to enter a number, not an character or symbol.&quot;);
-        return 1;
-    }
-    if (num &lt; 1)
-    {
-        printf(&quot;\nOnly postive number is allowed.&quot;);
-        return 1;
-    }
-    iterationLimit = (int)sqrt(num);
-    for (iterationIndex = 1; iterationIndex &lt;= iterationLimit; iterationIndex++)
-    {
-        if (iterationIndex * (iterationIndex + 1) == num)
-        {
-            printf(&quot;\nInput %d is a Pronic Number.&quot;, num);
-            return 0;
-        }
-    }
-    printf(&quot;\nInput %d is not a Pronic Number.&quot;, num);
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">P045.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P045.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-P045_c', 'P045.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-P045_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P045.c">
-                                            <pre><code class="language-c">/* Make this pattern for input n.
-    Pattern :
-    1
-    1   2
-    1   2   3
-    1   2   3   4
-    1   2   3   4   5
-*/
-/* Author - Amit Dutta, Date - 01st NOVEMBER, 2025 */
-
-#include &lt;stdio.h&gt;
-
-int main()
-{
-    int i, j, n;
-    printf(&quot;Enter n : &quot;);
-    scanf(&quot;%d&quot;, &amp;n);
-    for (i = 1; i &lt;= n; i++)
-    {
-        for (j = 1; j &lt;= i; j++)
-        {
-            printf(&quot;%d\t&quot;, j);
-        }
-        printf(&quot;\n&quot;);
-    }
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">P046.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P046.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-P046_c', 'P046.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-P046_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P046.c">
-                                            <pre><code class="language-c">/* Make this pattern for input n.
-    Pattern :
-    1
-    2   1
-    3   2   1
-    4   3   2   1
-    5   4   3   2   1
-*/
-/* Author - Amit Dutta, Date - 01st NOVEMBER, 2025 */
-
-#include &lt;stdio.h&gt;
-
-int main()
-{
-    int i, j, n;
-    printf(&quot;Enter n : &quot;);
-    scanf(&quot;%d&quot;, &amp;n);
-    for (i = 1; i &lt;= n; i++)
-    {
-        for (j = i; j &gt;= 1; j--)
-        {
-            printf(&quot;%d\t&quot;, j);
-        }
-        printf(&quot;\n&quot;);
-    }
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">P047.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P047.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-P047_c', 'P047.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-P047_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P047.c">
-                                            <pre><code class="language-c">/* Make this pattern for input n.
-    Pattern :
-    5
-    5   4
-    5   4   3
-    5   4   3   2
-    5   4   3   2   1
-*/
-/* Author - Amit Dutta, Date - 01st NOVEMBER, 2025 */
-
-#include &lt;stdio.h&gt;
-
-int main()
-{
-    int i, j, n;
-    printf(&quot;Enter n : &quot;);
-    scanf(&quot;%d&quot;, &amp;n);
-    for (i = n; i &gt;= 1; i--)
-    {
-        for (j = n; j &gt;= i; j--)
-        {
-            printf(&quot;%d\t&quot;, j);
-        }
-        printf(&quot;\n&quot;);
-    }
-    return 0;
-}
-</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">P048.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P048.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-P048_c', 'P048.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-P048_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P048.c">
-                                            <pre><code class="language-c">/* Make this pattern for input n no of row.
-    Pattern :
-    1
-    2   3   
-    4   5   6
-    7   8   9   10
-    11  12  13  14  15   
-*/
-/* Author - Amit Dutta, Date - 01st NOVEMBER, 2025 */
-
-#include &lt;stdio.h&gt;
-
-int main()
-{
-    int i, j, n, temp = 1;
-    printf(&quot;Enter row number : &quot;);
-    scanf(&quot;%d&quot;, &amp;n);
-    for (i = 1; i &lt;= n; i++)
-    {
-        for (j = 1; j &lt;= i; j++)
-        {
-            printf(&quot;%d\t&quot;, temp);
-            temp++;
-        }
-        printf(&quot;\n&quot;);
-    }
-    return 0;
-}
-</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">P049.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P049.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-P049_c', 'P049.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-P049_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P049.c">
-                                            <pre><code class="language-c">/* Make this pattern for input n no of row.
-    Pattern :
-    #
-    @   @
-    #   #   #
-    @   @   @   @
-    #   #   #   #   #
-    */
-/* Author - Amit Dutta, Date - 01st NOVEMBER, 2025 */
-
-#include &lt;stdio.h&gt;
-
-int main()
-{
-    int i, j, n;
-    char a = &#x27;#&#x27;, b = &#x27;@&#x27;;
-    printf(&quot;Enter row number : &quot;);
-    scanf(&quot;%d&quot;, &amp;n);
-    for (i = 1; i &lt;= n; i++)
-    {
-        for (j = 1; j &lt;= i; j++)
-        {
-            if (i % 2 == 0)
-                printf(&quot;%c\t&quot;, b);
-            else
-                printf(&quot;%c\t&quot;, a);
-        }
-        printf(&quot;\n&quot;);
-    }
-    return 0;
-}
-</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">P050-SHORT.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P050-SHORT.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-P050-SHORT_c', 'P050-SHORT.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-P050-SHORT_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P050-SHORT.c">
-                                            <pre><code class="language-c">/* Write a program to input a number and check whether it is Disarium Number or not.
-    Note : A number is said to Disarium if sum of its digit powered by with their
-    respective position is equal to the original number. */
-/* Author - Amit Dutta, Date - 08th November, 2025 */
-
-// This code has not been compiled.
-// If you find any issues, please create a new issue on GitHub regarding them.
-// Go to this link to create a new issue: https://github.com/notamitgamer/bsc/issues
-
-#include &lt;stdio.h&gt;
-#include &lt;math.h&gt;
-
-int main()
-{
-    int num;
-    printf(&quot;Enter the number : &quot;);
-    scanf(&quot;%d&quot;, &amp;num);
-    int position = printf(&quot;%d&quot;, num);
-    int temp = num;
-    int res = 0;
-    while (temp &gt; 0)
-    {
-        res += (int)pow(temp % 10, position);
-        position--;
-        temp /= 10;
-    }
-    if (res == num)
-        printf(&quot; is a Disarium Number.&quot;);
-    else
-        printf(&quot; is Not a Disarium Number.&quot;);
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">P050.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P050.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-P050_c', 'P050.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-P050_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P050.c">
-                                            <pre><code class="language-c">/* Write a program to input a number and check whether it is Disarium Number or not.
-    Note : A number is said to Disarium if sum of its digit powered by with their
-    respective position is equal to the original number. */
-/* Author - Amit Dutta, Date - 08th November, 2025 */
-
-// This code has not been compiled.
-// If you find any issues, please create a new issue on GitHub regarding them.
-// Go to this link to create a new issue: https://github.com/notamitgamer/bsc/issues
-
-#include &lt;stdio.h&gt;
-#include &lt;math.h&gt;
-
-int main()
-{
-    int num, res = 0, temp, position = 0;
-    printf(&quot;Enter the number : &quot;);
-    scanf(&quot;%d&quot;, &amp;num);
-    temp = num;
-    while (temp &gt; 0)
-    {
-        position++;
-        temp /= 10;
-    }
-    temp = num;
-    while (temp &gt; 0)
-    {
-        res += (int)pow(temp % 10, position);
-        position--;
-        temp /= 10;
-    }
-    if (res == num)
-        printf(&quot;\nInput %d is a Disarium Number.&quot;, num);
-    else
-        printf(&quot;\nInput %d is Not a Disarium Number.&quot;, num);
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">P051.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P051.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-P051_c', 'P051.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-P051_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P051.c">
-                                            <pre><code class="language-c">/* Write a program to input two number and check whether they are Amicable Pair or not
-    Example :  Sum of Proper Divisors of 220 (1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110) = 284
-               Sum of Proper Divisors of 284 (1, 2, 4, 71, 142) = 220 */
-/* Author - Amit Dutta, Date - 09th November, 2025 */
-
-// This code has not been compiled.
-// If you find any issues, please create a new issue on GitHub regarding them.
-// Go to this link to create a new issue: https://github.com/notamitgamer/bsc/issues
-
-#include &lt;stdio.h&gt;
-
-int main()
-{
-    int a, b, i, sa = 0, sb = 0;
-    printf(&quot;Enter two number : &quot;);
-    scanf(&quot;%d %d&quot;, &amp;a, &amp;b);
-    for (i = 1; i &lt;= a / 2; i++)
-        if (a % i == 0)
-            sa += i;
-    for (i = 1; i &lt;= b / 2; i++)
-        if (b % i == 0)
-            sb += i;
-    if (sa == b &amp;&amp; sb == a)
-        printf(&quot;\nInput %d and %d is Amicable Pair.&quot;, a, b);
-    else
-        printf(&quot;\nInput %d and %d is Not Amicable Pair.&quot;, a, b);
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">P052.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P052.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-P052_c', 'P052.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-P052_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P052.c">
-                                            <pre><code class="language-c">/* Print the sum of this series for upto n element.
-    Series: 1 + (1 + 2) + (1 + 2 + 3) + (1 + 2 + 3 + 4) + ... + (1 + 2 + 3 + ... + n) */
-/* Author - Amit Dutta, Date - 09th November, 2025 */
-
-// This code has not been compiled.
-// If you find any issues, please create a new issue on GitHub regarding them.
-// Go to this link to create a new issue: https://github.com/notamitgamer/bsc/issues
-
-#include &lt;stdio.h&gt;
-
-int main()
-{
-    int n, sum = 0, temp = 0, i;
-    printf(&quot;Enter the n : &quot;);
-    scanf(&quot;%d&quot;, &amp;n);
-    for (i = 1; i &lt;= n; i++)
-    {
-        temp += i;
-        sum += temp;
-    }
-    printf(&quot;%d&quot;, sum);
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">P053.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P053.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-P053_c', 'P053.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-P053_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P053.c">
-                                            <pre><code class="language-c">/* Print all pattern */
-/* Author - Amit Dutta, Date - 09th November, 2025 */
-
-// This code has not been compiled.
-// If you find any issues, please create a new issue on GitHub regarding them.
-// Go to this link to create a new issue: https://github.com/notamitgamer/bsc/issues
-
-#include &lt;stdio.h&gt;
-
-int main()
-{
-    int i, j, temp;
-
-    printf(&quot;\n\nPattern 1 : \n\n&quot;);
-    /*
-    9   9   9   9   9
-    7   7   7   7   7
-    5   5   5   5   5
-    3   3   3   3   3
-    1   1   1   1   1
-    */
-    temp = 9;
-    for (i = 1; i &lt;= 5; i++)
-    {
-        for (j = 1; j &lt;= 5; j++)
-        {
-            printf(&quot;%d  &quot;, temp);
-        }
-        printf(&quot;\n&quot;);
-        temp -= 2;
-    }
-
-    // Another method print above pattern
-    printf(&quot;\n\nPattern 1 : \n\n&quot;);
-    for (i = 9; i &gt;= 1; i -= 2)
-    {
-        for (j = 1; j &lt;= 5; j++)
-        {
-            printf(&quot;%d  &quot;, i);
-        }
-        printf(&quot;\n&quot;);
-    }
-
-    printf(&quot;\n\nPattern 2 : \n\n&quot;);
-    /*
-    1   2   3   4   5
-    1   2   3   4   5
-    1   2   3   4   5
-    */
-    for (i = 1; i &lt;= 3; i++)
-    {
-        for (j = 1; j &lt;= 5; j++)
-        {
-            printf(&quot;%d  &quot;, j);
-        }
-        printf(&quot;\n&quot;);
-    }
-
-    printf(&quot;\n\nPattern 3 : \n\n&quot;);
-    /*
-    5   4   3   2   1
-    5   4   3   2   1
-    */
-    for (i = 1; i &lt;= 2; i++)
-    {
-        for (j = 5; j &gt;= 1; j--)
-        {
-            printf(&quot;%d  &quot;, j);
-        }
-        printf(&quot;\n&quot;);
-    }
-
-    printf(&quot;\n\nPattern 4 : \n\n&quot;);
-    /*
-    1   2   3   4
-    5   6   7   8
-    9   10  11  12
-    */
-    temp = 1;
-    for (i = 1; i &lt;= 3; i++)
-    {
-        for (j = 1; j &lt;= 4; j++)
-        {
-            printf(&quot;%d  &quot;, temp);
-            temp++;
-        }
-        printf(&quot;\n&quot;);
-    }
-
-    printf(&quot;\n\nPattern 5 : \n\n&quot;);
-    /*
-    1   2   3   4
-    4   8   12  16
-    1   2   3   4
-    4   8   12  16
-    1   2   3   4
-    */
-    for (i = 1; i &lt;= 5; i++)
-    {
-        for (j = 1; j &lt;= 4; j++)
-        {
-            if (i % 2 == 0)
-                printf(&quot;%d  &quot;, j * 4);
-            else
-                printf(&quot;%d  &quot;, j);
-        }
-        printf(&quot;\n&quot;);
-    }
-
-    printf(&quot;\n\nPattern 6 : \n\n&quot;);
-    /*
-    1
-    2   4
-    3   5   7
-    6   8   10  12
-    9   11  13  15  17
-    */
-    int odd = 1, even = 2;
-    for (i = 1; i &lt;= 5; i++)
-    {
-        for (j = 1; j &lt;= i; j++)
-        {
-            if (i % 2 == 0)
-            {
-                printf(&quot;%d  &quot;, even);
-                even += 2;
-            }
-            else
-            {
-                printf(&quot;%d  &quot;, odd);
-                odd += 2;
-            }
-        }
-        printf(&quot;\n&quot;);
-    }
-
-    printf(&quot;\n\nPattern 7 : \n\n&quot;);
-    /*
-    1   2   3   4   5
-    6   7   8   9
-    10  11  12
-    13  14
-    15
-    */
-    temp = 1;
-    for (i = 5; i &gt;= 1; i--)
-    {
-        for (j = 1; j &lt;= i; j++)
-        {
-            printf(&quot;%d  &quot;, temp);
-            temp++;
-        }
-        printf(&quot;\n&quot;);
-    }
-
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">P054.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P054.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-P054_c', 'P054.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-P054_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P054.c">
-                                            <pre><code class="language-c">/* WAP to check Krishnamurty number using user defined methods/functions. */
-/* Author - Amit Dutta, Date - 15th November, 2025 */
-
-// This code has not been compiled.
-// If you find any issues, please create a new issue on GitHub regarding them.
-// Go to this link to create a new issue: https://github.com/notamitgamer/bsc/issues
-
-#include &lt;stdio.h&gt;
-
-int fact(int);
-int isKrishnamurty(int);
-
-int fact(int n)
-{
-    int fact = 1, i;
-    for (i = 1; i &lt;= n; i++)
-        fact *= i;
-    return fact;
-}
-
-int isKrishnamurty(int n)
-{
-    int temp = n, sum = 0;
-    while (temp &gt; 0)
-    {
-        sum += fact(temp % 10);
-        temp /= 10;
-    }
-    return n == sum;
-}
-
-int main()
-{
-    int n;
-    printf(&quot;Enter the number : &quot;);
-    scanf(&quot;%d&quot;, &amp;n);
-    if (isKrishnamurty(n))
-        printf(&quot;\nInput %d is a Krishnamurty Number.&quot;, n);
-    else
-        printf(&quot;\nInput %d is not a Krishnamurty number.&quot;, n);
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">P055.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P055.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-P055_c', 'P055.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-P055_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P055.c">
-                                            <pre><code class="language-c">/* WAP to print n terms of Fibbonacci Series (Starting from term 0) */
-/* Author - Amit Dutta, Date - 15th November, 2025 */
-
-// This code has not been compiled.
-// If you find any issues, please create a new issue on GitHub regarding them.
-// Go to this link to create a new issue: https://github.com/notamitgamer/bsc/issues
-
-#include &lt;stdio.h&gt;
-
-void printFibonacci(int);
-
-void printFibonacci(int n)
-{
-    int val1 = 0, val2 = 1, val3, i;
-    printf(&quot;\nFibonacci series upto %d terms :&quot;, n);
-    if (n &lt; 0)
-        printf(&quot;  N/A&quot;);
-    if (n == 0)
-        printf(&quot;  %d&quot;, val1);
-    if (n &gt; 0)
-        printf(&quot;  %d  %d&quot;, val1, val2);
-    for (i = 2; i &lt;= n; i++)
-    {
-        val3 = val1 + val2;
-        printf(&quot;  %d&quot;, val3);
-        val1 = val2;
-        val2 = val3;
-    }
-}
-
-int main()
-{
-    int n;
-    printf(&quot;Enter the n : &quot;);
-    scanf(&quot;%d&quot;, &amp;n);
-    printFibonacci(n);
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">P056.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P056.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-P056_c', 'P056.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-P056_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P056.c">
-                                            <pre><code class="language-c">/* WAP to swap the value of a and b using user defined method. */
-/* Author - Amit Dutta, Date - 22th November, 2025 */
-
-// This code has not been compiled.
-// If you find any issues, please create a new issue on GitHub regarding them.
-// Go to this link to create a new issue: https://github.com/notamitgamer/bsc/issues
-
-#include &lt;stdio.h&gt;
-
-void swap(int *a, int *b)
-{
-    int temp = *a;
-    *a = *b;
-    *b = temp;
-}
-
-int main()
-{
-    int a, b;
-    printf(&quot;Enter A and B: &quot;);
-    scanf(&quot;%d %d&quot;, &amp;a, &amp;b);
-    printf(&quot;\nBefore swap A: %d, B: %d&quot;, a, b);
-    swap(&amp;a, &amp;b);
-    printf(&quot;\nAfter swap A: %d, B: %d&quot;, a, b);
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">P057.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P057.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-P057_c', 'P057.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-P057_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P057.c">
-                                            <pre><code class="language-c">/* WAP to display the series using user defined method.
-    0, 7, 26, 63, ... upto n terms using void series(int n)
-*/
-/* Author - Amit Dutta, Date - 22th November, 2025 */
-
-// This code has not been compiled.
-// If you find any issues, please create a new issue on GitHub regarding them.
-// Go to this link to create a new issue: https://github.com/notamitgamer/bsc/issues
-
-#include &lt;stdio.h&gt;
-
-void series(int n)
-{
-    int i;
-    printf(&quot;\nSeries:  &quot;);
-    for (i = 1; i &lt;= n; i++)
-        printf(&quot;%d  &quot;, (i * i * i) - 1);
-}
-
-int main()
-{
-    int n;
-    printf(&quot;Enter n: &quot;);
-    scanf(&quot;%d&quot;, &amp;n);
-    series(n);
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-
-                                    <li>
-                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
-                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
-                                            <span class="text-gray-700">P058.c</span>
-                                            <div class="ml-auto flex items-center space-x-4">
-                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P058.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
-                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
-                                                </a>
-                                                <button onclick="showCode('code-tuition-c-P058_c', 'P058.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
-                                            </div>
-                                        </div>
-                                        <div id="code-tuition-c-P058_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P058.c">
-                                            <pre><code class="language-c">/* WAP to display ASCII code of Alphabets (A - Z) using void displayASCII() */
-/* Author - Amit Dutta, Date - 22th November, 2025 */
-
-// This code has not been compiled.
-// If you find any issues, please create a new issue on GitHub regarding them.
-// Go to this link to create a new issue: https://github.com/notamitgamer/bsc/issues
-
-#include &lt;stdio.h&gt;
-
-void displayASCII()
-{
-    int i;
-    printf(&quot;ASCII Code\t\tCharacter&quot;);
-    for (i = &#x27;A&#x27;; i &lt;= &#x27;Z&#x27;; i++)
-        printf(&quot;\n%c\t\t%d&quot;, i, i);
-}
-
-int main()
-{
-    displayASCII();
-    return 0;
-}</code></pre>
-                                        </div>
-                                    </li>
-                </ul>
-            </div>
-        </li>
-              </ul>
-            </div>
-          </div>
-          <!-- END INITIAL FILE LIST -->
-        </div>
-        <footer class="text-center py-4 bg-gray-50 border-t">
-          <p class="text-sm text-gray-500">
-            This page is an index for the
-            <a
-              href="https://github.com/notamitgamer/bsc"
-              class="text-blue-600 hover:underline"
-              >bsc repository</a
-            >.
-          </p>
-        </footer>
-      </div>
-    </div>
-
-    <!-- Code Viewer Modal (Enhanced Design) -->
-    <div
-      id="code-modal"
-      class="fixed inset-0 bg-gray-900 bg-opacity-95 flex items-center justify-center p-2 md:p-4 hidden z-50"
-    >
-      <div
-        class="bg-gray-800 text-gray-100 rounded-lg shadow-2xl w-full max-w-5xl modal-content-area flex flex-col"
-      >
-        <!-- Modal Header -->
-        <div
-          class="flex items-center justify-between p-3 md:p-4 border-b border-gray-700 bg-gray-900 rounded-t-lg flex-shrink-0"
-        >
-          <h3
-            id="modal-filename"
-            class="text-sm md:text-lg font-mono text-gray-300 truncate"
-          ></h3>
-          <div class="flex items-center space-x-2 md:space-x-3">
-            <!-- Share Button -->
-            <button
-              id="share-btn"
-              class="bg-gray-700 text-gray-200 p-2 rounded-md hover:bg-gray-600 relative transition-colors"
-              title="Share file link (Copies GitHub URL if sharing is unavailable)"
-            >
-              <svg
-                class="w-4 h-4 md:w-5 md:h-5"
-                fill="none"
-                stroke="currentColor"
-                viewBox="0 0 24 24"
-                xmlns="http://www.w3.org/2000/svg"
-                id="share-icon-default"
-              >
-                <path
-                  stroke-linecap="round"
-                  stroke-linejoin="round"
-                  stroke-width="2"
-                  d="M4 12v8a2 2 0 002 2h12a2 2 0 002-2v-8m-4-6l-4-4-4 4m4-4v13"
-                ></path>
-              </svg>
-              <svg
-                class="w-4 h-4 md:w-5 md:h-5 absolute inset-0 m-auto hidden text-green-400"
-                id="share-icon-success"
-                fill="none"
-                stroke="currentColor"
-                viewBox="0 0 24 24"
-                xmlns="http://www.w3.org/2000/svg"
-              >
-                <path
-                  stroke-linecap="round"
-                  stroke-linejoin="round"
-                  stroke-width="2"
-                  d="M5 13l4 4L19 7"
-                ></path>
-              </svg>
-            </button>
-            <!-- Copy Button -->
-            <button
-              id="copy-code-btn"
-              class="bg-gray-700 text-gray-200 p-2 rounded-md hover:bg-gray-600 relative transition-colors"
-              title="Copy code to clipboard"
-            >
-              <svg
-                xmlns="http://www.w3.org/2000/svg"
-                width="16"
-                height="16"
-                fill="currentColor"
-                class="bi bi-copy w-4 h-4 md:w-5 md:h-5"
-                viewBox="0 0 16 16"
-                id="copy-icon-default"
-              >
-                <path
-                  fill-rule="evenodd"
-                  d="M4 2a2 2 0 0 1 2-2h8a2 2 0 0 1 2 2v8a2 2 0 0 1-2 2H6a2 2 0 0 1-2-2zm2-1a1 1 0 0 0-1 1v8a1 1 0 0 0 1 1h8a1 1 0 0 0 1-1V2a1 1 0 0 0-1-1zM2 5a1 1 0 0 0-1 1v8a1 1 0 0 0 1 1h8a1 1 0 0 0 1-1v-1h1v1a2 2 0 0 1-2 2H2a2 2 0 0 1-2-2V6a2 2 0 0 1 2-2h1v1z"
-                />
-              </svg>
-              <svg
-                class="w-4 h-4 md:w-5 md:h-5 absolute inset-0 m-auto hidden text-green-400"
-                id="copy-icon-success"
-                fill="none"
-                stroke="currentColor"
-                viewBox="0 0 24 24"
-                xmlns="http://www.w3.org/2000/svg"
-              >
-                <path
-                  stroke-linecap="round"
-                  stroke-linejoin="round"
-                  stroke-width="2"
-                  d="M5 13l4 4L19 7"
-                ></path>
-              </svg>
-            </button>
-            <!-- Close Button -->
-            <button
-              onclick="hideCode()"
-              class="text-gray-400 hover:text-white text-2xl md:text-3xl leading-none"
-            >
-              &times;
-            </button>
-          </div>
-        </div>
-        <!-- Modal Body: Code Content -->
-        <div id="modal-body" class="overflow-y-auto flex-grow">
-          <div id="modal-code-container" class="rounded-b-lg">
-            <!-- Code will be injected here -->
-          </div>
-        </div>
-      </div>
-    </div>
-
-    <script>
-      function toggleFolder(folderName) {
-        const content = document.getElementById(`folder-${folderName}`);
-        const chevron = document.getElementById(`chevron-${folderName}`);
-
-        if (content.classList.contains("hidden")) {
-          content.classList.remove("hidden");
-          chevron.classList.add("rotated");
-        } else {
-          content.classList.add("hidden");
-          chevron.classList.remove("rotated");
-        }
-      }
-
-      const modal = document.getElementById("code-modal");
-      const modalFilename = document.getElementById("modal-filename");
-      const modalCodeContainer = document.getElementById(
-        "modal-code-container"
-      );
-
-      const copyBtn = document.getElementById("copy-code-btn");
-      const copyIconDefault = document.getElementById("copy-icon-default");
-      const copyIconSuccess = document.getElementById("copy-icon-success");
-
-      const shareBtn = document.getElementById("share-btn");
-      const shareIconDefault = document.getElementById("share-icon-default");
-      const shareIconSuccess = document.getElementById("share-icon-success");
-
-      let currentFileUrl = "";
-
-      // --- SEARCH IMPLEMENTATION ---
-
-      // Global state for the search index
-      let fileSearchIndex = [];
-      let activeSearchTerm = "";
-      let indexBuilt = false; // Flag for lazy indexing
-
-      /**
-       * Builds the search index from all hidden code blocks on the page.
-       * This should be called only once.
-       */
-      function buildSearchIndex() {
-        if (indexBuilt) return;
-        console.log("Building search index...");
-        const codeBlocks = document.querySelectorAll('[id^="code-"]');
-        codeBlocks.forEach((block) => {
-          const id = block.id;
-          let filename = id.split("-").slice(2).join("-").replace(/_/g, ".");
-          // Handle path structure
-          if (
-            block.dataset.githubUrl &&
-            block.dataset.githubUrl.includes("/main/")
-          ) {
-            filename = block.dataset.githubUrl
-              .split("/")
-              .pop()
-              .replace(/%20/g, " "); // Decode URL for filename
-          } else if (filename.includes(".")) {
-            filename = filename.split("/").pop();
-          }
-
-          const preElement = block.querySelector("pre");
-          const codeElement = block.querySelector("code");
-
-          if (preElement && codeElement) {
-            fileSearchIndex.push({
-              id: id,
-              // Use the path after /main/
-              path: block.dataset.githubUrl.split("/main/")[1] || filename,
-              name: filename,
-              content: codeElement.textContent,
-              lines: codeElement.textContent.split("\n"),
-              language: codeElement.className.split("-").pop(),
-            });
-          }
-        });
-        indexBuilt = true;
-        console.log(`Search index built with ${fileSearchIndex.length} files.`);
-        // Re-run search if user was already typing
-        if (activeSearchTerm.length >= 2) {
-          handleSearch();
-        }
-      }
-
-      /**
-       * Clears the search input and restores the initial file list.
-       */
-      function clearSearch() {
-        document.getElementById("search-input").value = "";
-        activeSearchTerm = "";
-        document.getElementById("clear-search-btn").classList.add("hidden");
-        document.getElementById("initial-file-list").classList.remove("hidden");
-        document
-          .getElementById("search-results-container")
-          .classList.add("hidden");
-
-        // Reset placeholders
-        document.getElementById("result-file-list").innerHTML =
-          '<p id="search-placeholder" class="text-sm text-gray-500">Start typing to see file matches...</p>';
-        document.getElementById("result-code-matches").innerHTML =
-          '<p id="code-match-placeholder" class="text-sm text-gray-500">Select a file from the left to view matching code lines, or refine your search.</p>';
-        document.getElementById("result-count").textContent = "0";
-      }
-
-      /**
-       * Handles the search input event, managing visibility and filtering.
-       */
-      function handleSearch() {
-        const inputElement = document.getElementById("search-input");
-        const query = inputElement.value.trim();
-        activeSearchTerm = query;
-        const initialList = document.getElementById("initial-file-list");
-        const resultsContainer = document.getElementById(
-          "search-results-container"
-        );
-        const codeMatchesContainer = document.getElementById(
-          "result-code-matches"
-        );
-        const clearBtn = document.getElementById("clear-search-btn");
-
-        // Toggle clear button visibility
-        if (query.length > 0) {
-          clearBtn.classList.remove("hidden");
-          // Trigger lazy index build on first meaningful interaction
-          buildSearchIndex();
-        } else {
-          clearBtn.classList.add("hidden");
-        }
-
-        // Clear code matches and placeholder when a new search starts
-        codeMatchesContainer.innerHTML =
-          '<p id="code-match-placeholder" class="text-sm text-gray-500">Select a file from the left to view matching code lines, or refine your search.</p>';
-
-        if (query.length < 2 || !indexBuilt) {
-          initialList.classList.remove("hidden");
-          resultsContainer.classList.add("hidden");
-          document.getElementById("result-file-list").innerHTML =
-            '<p id="search-placeholder" class="text-sm text-gray-500">Start typing to see file matches...</p>';
-          document.getElementById("result-count").textContent = "0";
-          return;
-        }
-
-        initialList.classList.add("hidden");
-        resultsContainer.classList.remove("hidden");
-
-        const lowerQuery = query.toLowerCase();
-
-        const results = fileSearchIndex.filter(
-          (file) =>
-            file.name.toLowerCase().includes(lowerQuery) ||
-            file.path.toLowerCase().includes(lowerQuery) ||
-            file.content.toLowerCase().includes(lowerQuery)
-        );
-
-        displayFileResults(results);
-      }
-
-      /**
-       * Displays the list of files that match the search query (WhatsApp contact list analogy).
-       */
-      function displayFileResults(results) {
-        const fileListContainer = document.getElementById("result-file-list");
-        const resultCount = document.getElementById("result-count");
-
-        resultCount.textContent = results.length;
-        fileListContainer.innerHTML = "";
-
-        if (results.length === 0) {
-          fileListContainer.innerHTML =
-            '<p class="text-sm text-gray-500">No files matched your search term in name or content.</p>';
-          return;
-        }
-
-        const lowerQuery = activeSearchTerm.toLowerCase();
-        // Safe regex for highlighting matches
-        const regex = new RegExp(
-          `(${activeSearchTerm.replace(
-            /([.*+?^=!:${}()|\[\]\/\\])/g,
-            "\\$1"
-          )})`,
-          "gi"
-        );
-
-        results.forEach((file) => {
-          // Decode file name/path for display before highlighting
-          const decodedPath = decodeURIComponent(file.path);
-          const decodedName = decodeURIComponent(file.name);
-
-          const displayName = decodedName.replace(
-            regex,
-            '<span class="bg-yellow-200 font-semibold rounded-sm">$1</span>'
-          );
-          const displayPath = decodedPath.replace(
-            regex,
-            '<span class="bg-yellow-200 font-semibold rounded-sm">$1</span>'
-          );
-
-          const listItem = document.createElement("div");
-          // Add 'active' class capability
-          listItem.className =
-            "search-file-item p-3 rounded-lg shadow-sm cursor-pointer hover:bg-blue-100 transition-colors duration-150 border border-gray-200";
-          listItem.setAttribute("data-file-id", file.id);
-          listItem.innerHTML = `<p class="font-mono text-xs text-blue-600">${displayPath}</p><p class="text-sm font-medium text-gray-800">${displayName}</p>`;
-
-          listItem.onclick = () => {
-            // Remove 'active' state from all others, add to current
-            document
-              .querySelectorAll(".search-file-item")
-              .forEach((el) => el.classList.remove("active"));
-            listItem.classList.add("active");
-            displayCodeMatches(file);
-          };
-
-          fileListContainer.appendChild(listItem);
-        });
-      }
-
-      /**
-       * Displays the actual code lines that contain the search term for a selected file.
-       */
-      function displayCodeMatches(file) {
-        const codeMatchesContainer = document.getElementById(
-          "result-code-matches"
-        );
-        codeMatchesContainer.innerHTML = "";
-        const query = activeSearchTerm.toLowerCase();
-        const regex = new RegExp(
-          `(${activeSearchTerm.replace(
-            /([.*+?^=!:${}()|\[\]\/\\])/g,
-            "\\$1"
-          )})`,
-          "gi"
-        );
-
-        // Title/Header for the Code Matches container
-        const header = document.createElement("div");
-        header.className =
-          "sticky top-0 bg-white p-2 border-b mb-4 -mt-4 -mx-4 z-10 rounded-t-xl";
-
-        const resultsList = document.createElement("div");
-        resultsList.className = "space-y-4 pt-2";
-
-        let matchCount = 0;
-
-        file.lines.forEach((line, index) => {
-          if (line.toLowerCase().includes(query)) {
-            matchCount++;
-
-            const highlightedLine = line.replace(
-              regex,
-              '<span class="bg-yellow-300 rounded-sm font-semibold">$1</span>'
-            );
-
-            const matchItem = document.createElement("div");
-            matchItem.className = "code-match-line";
-            matchItem.innerHTML = `
-                <div class="text-blue-500 mb-1">Line ${index + 1}:</div>
-                <div class="text-gray-700">${highlightedLine}</div>
-            `;
-            resultsList.appendChild(matchItem);
-          }
-        });
-
-        // Update header with file info and match count
-        header.innerHTML = `
-            <h3 class="text-base font-semibold text-gray-800">${decodeURIComponent(
-              file.name
-            )}</h3>
-            <p class="text-xs text-gray-500">${decodeURIComponent(
-              file.path
-            )} &mdash; <span class="text-green-600 font-semibold">${matchCount} matches</span></p>
-        `;
-        codeMatchesContainer.appendChild(header);
-
-        if (matchCount > 0) {
-          codeMatchesContainer.appendChild(resultsList);
-        } else {
-          // Show message if search term matches filename/path but not content (rare, but possible)
-          codeMatchesContainer.innerHTML +=
-            '<p class="text-sm text-gray-500 mt-4">No specific content matches found for this file, but the name/path matched the keyword.</p>';
-        }
-
-        // *** View Full Code Button ***
-        const viewFullCodeButton = document.createElement("button");
-        viewFullCodeButton.className =
-          "mt-6 w-full bg-blue-600 text-white font-semibold py-3 rounded-lg hover:bg-blue-700 transition-colors shadow-lg";
-        viewFullCodeButton.textContent = `View Full Code for ${decodeURIComponent(
-          file.name
-        )}`;
-        viewFullCodeButton.onclick = () => {
-          showCode(file.id, decodeURIComponent(file.name)); // Reuses the existing showCode modal logic
-        };
-        codeMatchesContainer.appendChild(viewFullCodeButton);
-      }
-
-      // --- END SEARCH IMPLEMENTATION ---
-
-      /**
-       * Shows a successful copy animation on a button.
-       */
-      function animateSuccess(button, defaultIcon, successIcon) {
-        defaultIcon.classList.add("hidden");
-        successIcon.classList.remove("hidden");
-
-        button.classList.add("btn-success-pulse");
-        button.classList.remove("bg-gray-700", "hover:bg-gray-600");
-
-        setTimeout(() => {
-          successIcon.classList.add("hidden");
-          defaultIcon.classList.remove("hidden");
-          button.classList.remove("btn-success-pulse");
-          button.classList.add("bg-gray-700", "hover:bg-gray-600");
-        }, 2000);
-      }
-
-      function showCode(codeBlockId, filename) {
-        const codeBlock = document.getElementById(codeBlockId);
-        if (codeBlock) {
-          modalFilename.textContent = filename;
-
-          // Clone the content to avoid issues with highlight.js re-running
-          const codeContentClone = codeBlock
-            .querySelector("pre")
-            .cloneNode(true);
-          modalCodeContainer.innerHTML = ""; // Clear previous content
-          modalCodeContainer.appendChild(codeContentClone);
-
-          currentFileUrl = codeBlock.dataset.githubUrl || "";
-
-          // The highlight.js class is already on the code element in the clone
-          hljs.highlightElement(modalCodeContainer.querySelector("code"));
-
-          modal.classList.remove("hidden");
-          document.body.style.overflow = "hidden";
-
-          // Focus the modal content for better accessibility (optional)
-          modalCodeContainer.querySelector("pre").focus();
-        }
-      }
-
-      function hideCode() {
-        modal.classList.add("hidden");
-        document.body.style.overflow = "auto";
-      }
-
-      copyBtn.addEventListener("click", () => {
-        const codeToCopy = modalCodeContainer.querySelector("code").innerText;
-        navigator.clipboard.writeText(codeToCopy).then(
-          () => {
-            animateSuccess(copyBtn, copyIconDefault, copyIconSuccess);
-          },
-          (err) => {
-            console.error("Failed to copy text: ", err);
-          }
-        );
-      });
-
-      shareBtn.addEventListener("click", async () => {
-        if (!currentFileUrl) return;
-
-        const shareData = {
-          title: modalFilename.textContent,
-          text: `Check out the code for ${modalFilename.textContent}`,
-          url: currentFileUrl,
-        };
-
-        if (navigator.share) {
-          try {
-            await navigator.share(shareData);
-          } catch (err) {
-            if (err.name !== "AbortError") {
-              console.error("Share failed:", err.message);
-            }
-          }
-        } else {
-          navigator.clipboard.writeText(currentFileUrl).then(() => {
-            animateSuccess(shareBtn, shareIconDefault, shareIconSuccess);
-          });
-        }
-      });
-
-      document.addEventListener("keydown", (e) => {
-        const searchInput = document.getElementById("search-input");
-
-        // 1. ESCAPE key closes modal
-        if (e.key === "Escape" && !modal.classList.contains("hidden")) {
-          hideCode();
-          return;
-        }
-
-        // 2. '/' key focuses search bar
-        // Check if the key is '/', the modal is not open, and the current focus is not an input field
-        if (
-          e.key === "/" &&
-          modal.classList.contains("hidden") &&
-          !/^(INPUT|TEXTAREA|SELECT)$/i.test(document.activeElement.tagName)
-        ) {
-          // Prevent the '/' character from being typed outside the input field
-          e.preventDefault();
-          searchInput.focus();
-        }
-      });
-
-      // Initial action: Lazy index building
-      // We don't call buildSearchIndex on load anymore.
-      // It's called on the first time the user types.
-      // This prioritizes page load speed.
-    </script>
-  </body>
-</html>
+<!DOCTYPE html>
+<html lang="en">
+  <head>
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <title>notamitgamer/bsc Repository File Index</title>
+    <script src="https://cdn.tailwindcss.com"></script>
+    <link
+      href="https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap"
+      rel="stylesheet"
+    />
+    <link
+      rel="stylesheet"
+      href="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/11.9.0/styles/github-dark.min.css"
+    />
+    <script src="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/11.9.0/highlight.min.js"></script>
+
+    <style>
+      body {
+        font-family: "Inter", sans-serif;
+      }
+      .chevron.rotated {
+        transform: rotate(180deg);
+      }
+
+      /* --- Enhanced Code Viewer Modal Styles --- */
+      #code-modal .modal-content-area {
+        /* Ensure the code viewer takes up maximum available height */
+        height: 90vh;
+        max-height: 90vh;
+      }
+      #modal-code-container {
+        /* Remove default padding from the outer container */
+        padding: 0;
+        flex-grow: 1; /* Allow the container to fill space */
+        display: flex; /* Flex context for pre element */
+      }
+      #modal-code-container pre {
+        /* Full width and height inside its container */
+        width: 100%;
+        height: 100%;
+        margin: 0;
+        padding: 1rem; /* Padding inside the code block */
+        overflow: auto;
+        /* Custom background and border to look more like a proper viewer */
+        background-color: #1e1e1e; /* Darker background for code */
+        border-radius: 0 0 0.5rem 0.5rem;
+        line-height: 1.4;
+      }
+      /* --- End Code Viewer Modal Styles --- */
+
+      /* Animation for success feedback */
+      .btn-success-pulse {
+        background-color: #10b981 !important; /* Tailwind green-500 */
+        box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.5); /* green-500 with opacity */
+        animation: pulse-success 0.5s ease-out;
+      }
+      @keyframes pulse-success {
+        0% {
+          box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.5);
+        }
+        50% {
+          box-shadow: 0 0 0 10px rgba(16, 185, 129, 0);
+        }
+        100% {
+          box-shadow: 0 0 0 0 rgba(16, 185, 129, 0);
+        }
+      }
+      /* Ensure code display is readable */
+      .code-match-line {
+        background-color: #f3f4f6;
+        padding: 0.75rem;
+        border-radius: 0.5rem;
+        font-size: 0.75rem; /* text-xs */
+        font-family: monospace;
+        white-space: pre-wrap;
+        word-break: break-all;
+        box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.05);
+      }
+
+      /* Active state for search results */
+      .search-file-item.active {
+        background-color: #dbeafe; /* Blue-100 */
+        border-color: #60a5fa; /* Blue-400 */
+        box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1),
+          0 2px 4px -1px rgba(0, 0, 0, 0.06);
+      }
+    </style>
+  </head>
+  <body class="bg-gray-100">
+    <div class="container mx-auto px-4 py-8 md:py-16">
+      <div
+        class="max-w-4xl mx-auto bg-white rounded-2xl shadow-lg overflow-hidden"
+      >
+        <div class="p-4 md:p-8">
+          <div class="text-center mb-8">
+            <h1 class="text-3xl md:text-4xl font-bold text-gray-800">
+              notamitgamer/bsc Repository Contents
+            </h1>
+            <p class="text-gray-500 mt-2 text-sm md:text-base">
+              A quick navigation guide to the files in the repository. <br />
+              <b
+                >For optimal viewing and experience, please use a desktop
+                browser.</b
+              >
+            </p>
+            <p class="text-gray-500 mt-2 text-sm md:text-base">
+              GitHub Repository URL:
+              <a
+                href="https://github.com/notamitgamer/bsc"
+                class="text-blue-600 hover:underline"
+                >https://github.com/notamitgamer/bsc</a
+              >
+            </p>
+          </div>
+
+          <!-- SEARCH BAR (Enhanced with Icon and Clear Button) -->
+          <div class="mb-8 relative">
+            <div
+              class="absolute inset-y-0 left-0 pl-3 flex items-center pointer-events-none"
+            >
+              <!-- Search Icon -->
+              <svg
+                class="w-5 h-5 text-gray-400"
+                fill="none"
+                stroke="currentColor"
+                viewBox="0 0 24 24"
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+              >
+                <path
+                  stroke-linecap="round"
+                  stroke-linejoin="round"
+                  stroke-width="2"
+                  d="M21 21l-6-6m2-5a7 7 0 11-14 0 7 7 0 0114 0z"
+                ></path>
+              </svg>
+            </div>
+            <input
+              type="text"
+              id="search-input"
+              placeholder="Search files by name or content keywords (Press '/' to focus)"
+              class="w-full p-3 pl-10 pr-10 border-2 border-gray-300 rounded-xl focus:outline-none focus:ring-2 focus:ring-blue-500 transition duration-150"
+              oninput="handleSearch()"
+              autocomplete="off"
+            />
+            <!-- Clear Button -->
+            <button
+              id="clear-search-btn"
+              onclick="clearSearch()"
+              class="absolute inset-y-0 right-0 pr-3 flex items-center focus:outline-none hidden"
+              title="Clear Search"
+            >
+              <svg
+                class="w-5 h-5 text-gray-400 hover:text-gray-600 transition-colors"
+                fill="none"
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+              >
+                <path
+                  stroke-linecap="round"
+                  stroke-linejoin="round"
+                  stroke-width="2"
+                  d="M6 18L18 6M6 6l12 12"
+                ></path>
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+            </button>
+          </div>
+          <!-- END SEARCH BAR -->
+
+          <!-- SEARCH RESULTS SECTION (Mobile responsive layout) -->
+          <div id="search-results-container" class="hidden mb-8">
+            <h2 class="text-lg font-semibold text-gray-700 border-b pb-2 mb-4">
+              Search Results (<span id="result-count">0</span> files)
+            </h2>
+            <div
+              class="flex flex-col md:flex-row space-y-4 md:space-y-0 md:space-x-4"
+            >
+              <!-- 1. File List (Wider on mobile, 1/3 on desktop) -->
+              <div
+                id="result-file-list"
+                class="w-full md:w-1/3 space-y-2 border rounded-xl p-4 bg-gray-50 max-h-[50vh] md:max-h-[60vh] overflow-y-auto"
+              >
+                <p id="search-placeholder" class="text-sm text-gray-500">
+                  Start typing to see file matches...
+                </p>
+              </div>
+              <!-- 2. Code Match Display (Wider on mobile, 2/3 on desktop) -->
+              <div
+                id="result-code-matches"
+                class="w-full md:w-2/3 border rounded-xl p-4 bg-white shadow-inner max-h-[50vh] md:max-h-[60vh] overflow-y-auto relative"
+              >
+                <p id="code-match-placeholder" class="text-sm text-gray-500">
+                  Select a file from the left to view matching code lines, or
+                  refine your search.
+                </p>
+              </div>
+            </div>
+          </div>
+          <!-- END SEARCH RESULTS SECTION -->
+
+          <!-- INITIAL FILE LIST (Hidden when searching) -->
+          <div id="initial-file-list">
+            <div class="space-y-4">
+              <h2 class="text-lg font-semibold text-gray-700 border-b pb-2">
+                Files and Folders
+              </h2>
+              <ul class="space-y-3">
+                
+                        <li class="border rounded-lg overflow-hidden">
+                            <div class="folder-header bg-gray-100 p-4 cursor-pointer hover:bg-blue-100 transition-colors duration-200" onclick="toggleFolder('assignment')">
+                                <div class="flex items-center justify-between">
+                                    <div class="flex items-center">
+                                        <svg class="w-6 h-6 text-blue-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M3 7v10a2 2 0 002 2h14a2 2 0 002-2V9a2 2 0 00-2-2h-6l-2-2H5a2 2 0 00-2 2z"></path></svg>
+                                        <span class="font-medium text-gray-800">assignment</span>
+                                        <span class="ml-2 text-sm text-gray-500">(5 files)</span>
+                                    </div>
+                                    <div class="flex items-center space-x-4">
+                                        <a href="https://github.com/notamitgamer/bsc/tree/main/assignment" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" onclick="event.stopPropagation()" title="View folder on GitHub">
+                                            <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                        </a>
+                                        <div class="chevron" id="chevron-assignment"><svg class="w-5 h-5 text-gray-500 transition-transform duration-200" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M19 9l-7 7-7-7"></path></svg></div>
+                                    </div>
+                                </div>
+                            </div>
+                            <div class="folder-content hidden bg-white" id="folder-assignment">
+                                <ul class="divide-y divide-gray-200">
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">assignment01.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/assignment/assignment01.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-assignment-assignment01_c', 'assignment01.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-assignment-assignment01_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/assignment/assignment01.c">
+                                            <pre><code class="language-c">/* Write a C program that includes a user-defined function named isPrime with the signature 
+int isPrime(int num); The function should take an integer as a parameter and return 1 if 
+the number is prime and 0 otherwise. */
+
+#include &lt;stdio.h&gt;
+#include &lt;math.h&gt;
+
+int isPrime(int);
+
+int main()
+{
+    int n;
+    printf(&quot;Enter the number: &quot;);
+    scanf(&quot;%d&quot;, &amp;n);
+
+    if (isPrime(n))
+    {
+        printf(&quot;\nInput %d is a Prime Number.&quot;, n);
+    }
+    else
+    {
+        printf(&quot;\nInput %d is not a Prime Number.&quot;, n);
+    }
+
+    return 0;
+}
+
+int isPrime(int n)
+{
+    if (n &lt;= 1)
+        return 0;
+    if (n == 2)
+        return 1;
+    if (n % 2 == 0)
+        return 0;
+
+    int temp = (int)sqrt(n);
+    int i;
+    for (i = 3; i &lt;= temp; i += 2)
+    {
+        if (n % i == 0)
+        {
+            return 0;
+        }
+    }
+    return 1;
+}
+</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">assignment02.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/assignment/assignment02.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-assignment-assignment02_c', 'assignment02.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-assignment-assignment02_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/assignment/assignment02.c">
+                                            <pre><code class="language-c">/* Write a C program that includes a user-defined function named isArmstrong with the 
+signature int isArmstrong(int num);. An Armstrong number is a number that is equal to 
+the sum of its own digits each raised to the power of the number of digits. For example, 
+153 is an Armstrong number because 1^3 + 5^3 + 3^3 = 153 */
+
+#include &lt;stdio.h&gt;
+#include &lt;math.h&gt;
+
+int isArmstrong(int);
+int count(int);
+
+int main()
+{
+    int n;
+    printf(&quot;Enter the number: &quot;);
+    scanf(&quot;%d&quot;, &amp;n);
+
+    if (isArmstrong(n))
+    {
+        printf(&quot;\nInput %d is a Armstrong Number.&quot;, n);
+    }
+    else
+    {
+        printf(&quot;\nInput %d is Not a Armstrong Number.&quot;, n);
+    }
+
+    return 0;
+}
+
+int count(int n)
+{
+    int count = 0;
+    while (n &gt; 0)
+    {
+        count++;
+        n = n / 10;
+    }
+    return count;
+}
+
+int isArmstrong(int n)
+{
+    if (n &lt; 0)
+        return 0; 
+    if (n == 0)
+        return 1;
+
+    int power = count(n);
+    int temp = n;
+    int checker = 0;
+
+    while (temp &gt; 0)
+    {
+        int digit = temp % 10;
+        checker = checker + (int)round(pow(digit, power));
+        temp = temp / 10;
+    }
+    return n == checker;
+}
+</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">assignment03.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/assignment/assignment03.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-assignment-assignment03_c', 'assignment03.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-assignment-assignment03_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/assignment/assignment03.c">
+                                            <pre><code class="language-c">/* Write a C program that includes a user-defined function named isPerfect with the signature 
+int isPerfect(int num);. A perfect number is a positive integer that is equal to the sum of 
+its proper divisors, excluding itself. For example, 28 is a perfect number because the sum 
+of its divisors (1, 2, 4, 7, 14) equals 28. */
+
+#include &lt;stdio.h&gt;
+
+int isPerfect(int);
+
+int main()
+{
+    int n;
+    printf(&quot;Enter the number: &quot;);
+    scanf(&quot;%d&quot;, &amp;n);
+    if (isPerfect(n))
+    {
+        printf(&quot;\nInput %d is a Perfect Number.&quot;, n);
+    }
+    else
+    {
+        printf(&quot;\nInput %d is not a Perfect Number.&quot;, n);
+    }
+    return 0;
+}
+
+int isPerfect(int n)
+{
+    if (n &lt;= 1)
+        return 0;
+    int temp = 1;
+    int i;
+    for (i = 2; i &lt;= n / 2; i++)
+    {
+        if (n % i == 0)
+        {
+            temp += i;
+        }
+    }
+    return temp == n;
+}
+</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">assignment04.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/assignment/assignment04.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-assignment-assignment04_c', 'assignment04.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-assignment-assignment04_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/assignment/assignment04.c">
+                                            <pre><code class="language-c">/* Write a C program that takes an integer input representing a month (1 to 12) and a year. 
+Use a switch statement to display the number of days in that month, considering leap years. */
+
+#include &lt;stdio.h&gt;
+
+int main()
+{
+    int month, year, days;
+    printf(&quot;Enter the month (1 to 12) and year: &quot;);
+    scanf(&quot;%d %d&quot;, &amp;month, &amp;year);
+
+    switch (month)
+    {
+    case 1:  // jan
+    case 3:  // mar
+    case 5:  // may
+    case 7:  // july
+    case 8:  // aug
+    case 10: // oct
+    case 12: // dec
+        days = 31;
+        break;
+    case 4:  // apr
+    case 6:  // jun
+    case 9:  // sep
+    case 11: // nov
+        days = 30;
+        break;
+    case 2: // feb
+        if ((year % 400 == 0) || ((year % 4 == 0) &amp;&amp; (year % 100 != 0)))
+        {
+            days = 29;
+        }
+        else
+        {
+            days = 28;
+        }
+        break;
+    default:
+        printf(&quot;\nYou entered something wrong.&quot;);
+        return 0;
+    }
+
+    printf(&quot;\nNumber of days: %d&quot;, days);
+    return 0;
+}
+</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">assignment05.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/assignment/assignment05.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-assignment-assignment05_c', 'assignment05.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-assignment-assignment05_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/assignment/assignment05.c">
+                                            <pre><code class="language-c"></code></pre>
+                                        </div>
+                                    </li>
+                </ul>
+            </div>
+        </li>
+
+                        <li class="border rounded-lg overflow-hidden">
+                            <div class="folder-header bg-gray-100 p-4 cursor-pointer hover:bg-blue-100 transition-colors duration-200" onclick="toggleFolder('c')">
+                                <div class="flex items-center justify-between">
+                                    <div class="flex items-center">
+                                        <svg class="w-6 h-6 text-blue-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M3 7v10a2 2 0 002 2h14a2 2 0 002-2V9a2 2 0 00-2-2h-6l-2-2H5a2 2 0 00-2 2z"></path></svg>
+                                        <span class="font-medium text-gray-800">c</span>
+                                        <span class="ml-2 text-sm text-gray-500">(7 files)</span>
+                                    </div>
+                                    <div class="flex items-center space-x-4">
+                                        <a href="https://github.com/notamitgamer/bsc/tree/main/c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" onclick="event.stopPropagation()" title="View folder on GitHub">
+                                            <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                        </a>
+                                        <div class="chevron" id="chevron-c"><svg class="w-5 h-5 text-gray-500 transition-transform duration-200" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M19 9l-7 7-7-7"></path></svg></div>
+                                    </div>
+                                </div>
+                            </div>
+                            <div class="folder-content hidden bg-white" id="folder-c">
+                                <ul class="divide-y divide-gray-200">
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">1.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/c/1.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-c-1_c', '1.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-c-1_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/c/1.c">
+                                            <pre><code class="language-c">// Write a program (WAP) to print the sum and product of digits of an integer.
+// Author - Amit Dutta, Date - 13th SEP, 2025
+
+#include&lt;stdio.h&gt;
+
+int main() {
+	int inp, result_sum = 0, result_product = 1, temp;
+	printf(&quot;Please enter the number : &quot;);
+	scanf(&quot;%d&quot;,&amp;inp);
+	printf(&quot;\n&quot;);
+	
+	if (inp &lt; 0) {
+		printf(&quot;\nPlease enter a valid non negetive integer.&quot;);
+		return 1;
+	}
+	
+	temp = inp;
+	while (temp != 0 ) {
+		result_sum = result_sum + (temp % 10);
+		result_product = result_product * (temp % 10);
+		temp = temp / 10;
+	}
+	
+	printf(&quot;\nSum of the digits of the input number &#x27;%d&#x27; is : %d&quot;
+		&quot;\nProduct of the digits of the input number &#x27;%d&#x27; is : %d&quot;,
+		inp, result_sum, inp, result_product);
+	return 0;
+}
+
+</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">2.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/c/2.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-c-2_c', '2.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-c-2_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/c/2.c">
+                                            <pre><code class="language-c">//WAP to reverse a non-negative integer.
+// Author - Amit Dutta, Date - 13th SEP, 2025
+
+#include&lt;stdio.h&gt;
+
+int main() {
+	int inp, result = 0, temp;
+	printf(&quot;PLease enter the number you want to reverse : &quot;);
+	scanf(&quot;%d&quot;,&amp;inp);
+	printf(&quot;\n&quot;);
+	
+	if (inp &lt; 0) {
+		printf(&quot;\nPlease enter a non negetive integer.&quot;);
+		return 1;
+	}
+	
+	temp = inp;
+	while ( temp != 0) {
+		result = (result * 10) + (temp % 10);
+		temp = temp / 10;
+	}
+	
+	printf(&quot;\nReverse of the input &#x27;%d&#x27; is : %d&quot;, inp, result);
+	return 0;
+}
+
+</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">3.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/c/3.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-c-3_c', '3.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-c-3_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/c/3.c">
+                                            <pre><code class="language-c">// WAP to compute the sum of the first n terms of the following series S =1+1/2+1/3+1/4+...... 
+// Author - Amit Dutta, Date - 13th SEP, 2025
+
+#include&lt;stdio.h&gt;
+
+int main() {
+	int n, i;
+	float result = 0;
+	printf(&quot;Please enter the value for &#x27;n&#x27; : &quot;);
+	scanf(&quot;%d&quot;, &amp;n);
+	printf(&quot;\n&quot;);
+	
+	if (n &lt;= 0) {
+		printf(&quot;\nPlease enter a positve number greater than ZERO.&quot;);
+		return 1;
+	}
+	
+	for (i = 1; i &lt;= n; i++) {
+		result = result + (1.0 / i);
+ 	}
+	
+	printf(&quot;\nSum of the first %d terms of the following series S =1+1/2+1/3+1/4+...... is : %f&quot;,n,result);
+	return 0;
+}
+</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">4.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/c/4.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-c-4_c', '4.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-c-4_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/c/4.c">
+                                            <pre><code class="language-c">//WAP to compute the sum of the first n terms of the following series,S =1-2+3-4+5......
+// Author - Amit Dutta, Date - 13th SEP, 2025
+
+#include&lt;stdio.h&gt;
+
+int main() {
+	int n, result = 0, temp, i;
+	printf(&quot;Please enter the value for &#x27;n&#x27; for this series &#x27;s = 1-2+3-4+5-....&#x27;: &quot;);
+	scanf(&quot;%d&quot;,&amp;n);
+	printf(&quot;\n&quot;);
+	
+	if (n &lt;= 0) {
+		printf(&quot;\nPlease enter a positive integer.&quot;);
+		return 1;
+	}
+	
+	for (i = 1; i&lt;= n; i++) {
+		if (i % 2 == 0) {
+			result = result - i;
+		}
+		else {
+			result = result + i;
+		}
+	}
+	
+	printf(&quot;\nAns : %d&quot;, result);
+}
+</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">5.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/c/5.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-c-5_c', '5.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-c-5_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/c/5.c">
+                                            <pre><code class="language-c">/*Write a function to find whether a given no. is prime or not. 
+Use the same to generate the prime numbers less than 100.*/
+// Author - Amit Dutta, Date - 13th SEP, 2025
+
+#include&lt;stdio.h&gt;
+
+int isPrime(int inp) {
+	int i, is_prime = 1;
+	
+	if (inp &lt; 2) is_prime = 0;
+	
+	for (i = 2; i &lt;= inp / 2; i++) if (inp % i == 0) {
+		is_prime = 0;
+		break;
+	}
+	
+	return is_prime;
+}
+
+
+int main() {
+	int inp, i;
+	printf(&quot;Enter the number you want to check : &quot;);
+	scanf(&quot;%d&quot;,&amp;inp);
+	printf(&quot;\n&quot;);
+	
+	if (isPrime(inp)) printf(&quot;\nGiven input &#x27;%d&#x27; is a Prime Number.&quot;,inp);
+	else printf(&quot;\nGiven input &#x27;%d&#x27; is not a Prime Number.&quot;,inp);
+	
+	printf (&quot;\nSeries of prime number upto 100 : &quot;);
+	for (i = 2; i &lt; 100; i++) if (isPrime(i)) printf(&quot; %d&quot;,i);
+	
+	return 0;
+}
+</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">6.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/c/6.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-c-6_c', '6.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-c-6_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/c/6.c">
+                                            <pre><code class="language-c">/*Write a function that checks whether a given string is Palindrome or not.
+Use this function to find whether the string entered by the user is Palindrome or not.*/
+// Author - Amit Dutta, Date - 13th SEP, 2025
+
+#include&lt;stdio.h&gt;
+#include&lt;string.h&gt;
+
+int isPalindrome(char inp[]) {
+	int len = strlen(inp);
+	int i = 0; //starting point
+	int j = len - 1; //end point
+	
+	while (i &lt; j) {
+		if (inp[i] != inp[j]) {
+			return 0;
+		}
+		i++;
+		j--;
+	}
+
+	return 1;
+}
+
+int main() {
+	char inp[20];
+	printf(&quot;Enter the number : &quot;);
+	scanf(&quot;%s&quot;,inp);
+	if (isPalindrome(inp)) printf(&quot;\n\nInput &#x27;%s&#x27; is a Palindrome number.&quot;, inp);
+	else printf(&quot;\n\nInput &#x27;%s&#x27; is not a Palindrome number.&quot;, inp);
+	return 0;
+}
+</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">7.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/c/7.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-c-7_c', '7.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-c-7_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/c/7.c">
+                                            <pre><code class="language-c">// WAP to compute the factors of a given number
+// Author - Amit Dutta, Date - 13th SEP, 2025
+
+#include&lt;stdio.h&gt;
+#include&lt;stdlib.h&gt;
+
+int main() {
+	int inp, num, i;
+	printf(&quot;Please enter the number to get the factors from it : &quot;);
+	scanf(&quot;%d&quot;, &amp;inp);
+
+	num = abs(inp);
+	
+	if (num == 0) {
+		printf(&quot;\n\n0 has infinitely many factors (all integers).&quot;);
+		return 1;
+	}
+	
+	printf(&quot;\n\nThe factors of &#x27; %d &#x27; is :- &quot;, inp);
+	printf(&quot;\nPositive : &quot;);
+	for (i = 1; i &lt;= num ; i++) if (num % i == 0) printf(&quot;  %d&quot;, i);
+	printf(&quot;\nNegative : &quot;);
+	for (i = 1; i &lt;= num ; i++) if (num % i == 0) printf(&quot;  %d&quot;, -i);
+	return 0;
+}
+</code></pre>
+                                        </div>
+                                    </li>
+                </ul>
+            </div>
+        </li>
+
+                        <li class="border rounded-lg overflow-hidden">
+                            <div class="folder-header bg-gray-100 p-4 cursor-pointer hover:bg-blue-100 transition-colors duration-200" onclick="toggleFolder('challenge')">
+                                <div class="flex items-center justify-between">
+                                    <div class="flex items-center">
+                                        <svg class="w-6 h-6 text-blue-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M3 7v10a2 2 0 002 2h14a2 2 0 002-2V9a2 2 0 00-2-2h-6l-2-2H5a2 2 0 00-2 2z"></path></svg>
+                                        <span class="font-medium text-gray-800">challenge</span>
+                                        <span class="ml-2 text-sm text-gray-500">(2 files)</span>
+                                    </div>
+                                    <div class="flex items-center space-x-4">
+                                        <a href="https://github.com/notamitgamer/bsc/tree/main/challenge" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" onclick="event.stopPropagation()" title="View folder on GitHub">
+                                            <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                        </a>
+                                        <div class="chevron" id="chevron-challenge"><svg class="w-5 h-5 text-gray-500 transition-transform duration-200" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M19 9l-7 7-7-7"></path></svg></div>
+                                    </div>
+                                </div>
+                            </div>
+                            <div class="folder-content hidden bg-white" id="folder-challenge">
+                                <ul class="divide-y divide-gray-200">
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">sudipto1.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/challenge/sudipto1.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-challenge-sudipto1_c', 'sudipto1.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-challenge-sudipto1_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/challenge/sudipto1.c">
+                                            <pre><code class="language-c">/* A smart home security controller monitors the state of several sensors to decide what action to take.
+ * Each second, the system reads data from sensors that can either be active or inactive. Based on the current
+ * state of all sensors, the controller must perform exactly one action, such as activating a warning, checking
+ * a specific zone, or declaring an intrusion. Write a C program that reads the sensor states as input and
+ * prints the corresponding system action.
+ -- Conditions:
+    * 1. You must determine exactly one action for every possible combination of sensor states.
+    * 2. You are not allowed to use any conditional statements (if, else if, else, or the ternary operator?).
+    * 3. You are not allowed to use logical operators.
+    * 4. You must use a single switch statement to control the program&#x27;s behaviour.
+    * 5. Loops may only be used for reading input, not for making decisions.
+    * 6. The program should handle all possible combinations of the sensors&#x27; active/inactive states and print the appropriate response each time.
+ -- Example (for understanding):
+ * If all sensors are inactive, the system should remain idle.
+ * If some sensors are active, the system should issue warnings or alerts based on the situation.
+ * If all sensors are active, the system should declare a confirmed intrusion.
+ */
+
+/*
+ * This program monitors the state of four sensors (Door, Window, Motion, Glass Break)
+ * and determines the appropriate action without using any conditional (if, else)
+ * or logical (&amp;&amp;, ||) operators.
+ *
+ * It works by combining the state of all sensors into a single integer value
+ * using bitmasking. Each bit in the integer represents the state of one sensor
+ * (1 for active, 0 for inactive). This combined state is then used in a single
+ * switch statement to select the correct action for every possible combination.
+ *
+ * Then, enter the state of the four sensors separated by spaces,
+ * for example: 1 0 1 0
+ */
+
+/* Author - Amit Dutta, Date - 12th October, 2025 */
+
+#include &lt;stdio.h&gt;
+int main()
+{
+
+   // variables to hold the state of a sensor (0 or 1)
+   int doorSensorState, windowSensorState, motionSensorState, glassbreakSensorState;
+
+   // variable to check the combined state of all four sensor
+   int combinedState = 0;
+
+   // a invalid flag to check the input are valid or not
+   unsigned int invalidFlag;
+
+   // printing the way to usage the program
+   printf(&quot;------ Home Security Controller ------\n&quot;);
+   printf(&quot;Enter sensor states (1 for active, 0 for inactive).\n&quot;);
+   printf(&quot;Format: [Door] [Window] [Motion] [Glass Break]\n&quot;);
+   printf(&quot;Example: 0 1 1 0\n&quot;);
+   printf(&quot;Enter states (or press Ctrl+D for MacOS or Linux / Ctrl+Z for Windows to exit): &quot;);
+
+   // doing the main calculation
+   // chacking the combined state and taking a decision
+   while (scanf(&quot;%d %d %d %d&quot;, &amp;doorSensorState, &amp;windowSensorState, &amp;motionSensorState, &amp;glassbreakSensorState) == 4)
+   {
+      // validating input
+      // The expression (variable &amp; ~1) results in 0 only if &#x27;variable&#x27; is 0 or 1.
+      // For any other positive number, it&#x27;s non-zero.
+      // We combine all checks with a bitwise OR. If any sensor state is invalid,
+      // the flag will become non-zero.
+      invalidFlag = (doorSensorState &amp; ~1) | (windowSensorState &amp; ~1) | (motionSensorState &amp; ~1) | (glassbreakSensorState &amp; ~1);
+
+      // Combine the four sensor states into a single integer using bitwise operations.
+      // This creates a unique number from 0 to 15 for each possible combination.
+      // Bit 0: Door Sensor
+      // Bit 1: Window Sensor
+      // Bit 2: Motion Sensor
+      // Bit 3: Glass Break Sensor
+      combinedState = (glassbreakSensorState &lt;&lt; 3) | (motionSensorState &lt;&lt; 2) | (windowSensorState &lt;&lt; 1) | doorSensorState;
+
+      // If the invalid_input_flag is non-zero, we add 16 to the state.
+      // This pushes it outside the 0-15 range and forces the &#x27;default&#x27; case in the switch.
+      // We achieve this by multiplying the flag (which is &gt; 0) by 16.
+      combinedState += invalidFlag * 16;
+
+      // printing the given state
+      printf(&quot;\n\nState : [Door : %d, Window : %d, Motion : %d, Glass Break : %d]\nState Id : %d&quot;,
+             doorSensorState, windowSensorState, motionSensorState, glassbreakSensorState, combinedState);
+      printf(&quot;\nSystem Action : &quot;);
+
+      // taking decision based on combined state
+      // A single switch statement controls the program&#x27;s behavior.
+      // It handles all 2^4 = 16 possible combinations of sensor states,
+      // ensuring exactly one action is taken for every scenario.
+      switch (combinedState)
+      {
+      case 0: // Binary: 0000
+         printf(&quot;System Idle. All sensors inactive.\n&quot;);
+         break;
+      case 1: // Binary: 0001
+         printf(&quot;Check front door camera.\n&quot;);
+         break;
+      case 2: // Binary: 0010
+         printf(&quot;Check window sensors.\n&quot;);
+         break;
+      case 3: // Binary: 0011
+         printf(&quot;Warning: Perimeter breach suspected. Check doors and windows.\n&quot;);
+         break;
+      case 4: // Binary: 0100
+         printf(&quot;Check interior cameras for movement.\n&quot;);
+         break;
+      case 5: // Binary: 0101
+         printf(&quot;Warning: Potential entry and movement detected. Check front door and interior. Ask for patrol.\n&quot;);
+         break;
+      case 6: // Binary: 0110
+         printf(&quot;Warning: Potential entry and movement detected. Check windows and interior. Ask for patrol.\n&quot;);
+         break;
+      case 7: // Binary: 0111
+         printf(&quot;Alert: High probability of unauthorized entry. Ask for patrol.\n&quot;);
+         break;
+      case 8: // Binary: 1000
+         printf(&quot;Alert: Glass break detected. High-priority event. Ask for patrol.\n&quot;);
+         break;
+      case 9: // Binary: 1001
+         printf(&quot;Severe Alert: Forced entry likely (door + glass). Activate Alarm and Contact authorities.\n&quot;);
+         break;
+      case 10: // Binary: 1010
+         printf(&quot;Severe Alert: Forced entry likely (window + glass). Activate Alarm and Contact authorities.\n&quot;);
+         break;
+      case 11: // Binary: 1011
+         printf(&quot;Intrusion Alert: Multiple perimeter breaches. Activate Alarm and Contact authorities.\n&quot;);
+         break;
+      case 12: // Binary: 1100
+         printf(&quot;Intrusion Alert: Confirmed interior presence after breach. Activate Alarm and Contact authorities.\n&quot;);
+         break;
+      case 13: // Binary: 1101
+         printf(&quot;INTRUSION CONFIRMED! Activate maximum response protocol. Activate Alarm and Contact authorities.\n&quot;);
+         break;
+      case 14: // Binary: 1110
+         printf(&quot;INTRUSION CONFIRMED! Activate maximum response protocol. Activate Alarm and Contact authorities.\n&quot;);
+         break;
+      case 15: // Binary: 1111
+         printf(&quot;CATASTROPHIC EVENT! ALL SENSORS TRIGGERED. ACTIVATE ALARM AND CONTACT COPS.\n&quot;);
+         break;
+      default:
+         // This case should not be reached with valid 0/1 input but is included for completeness.
+         printf(&quot;Error: Invalid sensor state detected.\n&quot;);
+         break;
+      }
+
+      // discarding extra characters (if any) left
+      while (getchar() != &#x27;\n&#x27;)
+         ;
+
+      // asking for next set of input
+      printf(&quot;\nEnter next set of states: &quot;);
+   }
+   printf(&quot;\nSecurity system shutting down.\n&quot;);
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">sudiptoown01.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/challenge/sudiptoown01.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-challenge-sudiptoown01_c', 'sudiptoown01.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-challenge-sudiptoown01_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/challenge/sudiptoown01.c">
+                                            <pre><code class="language-c">/*
+ * A smart home security controller monitors the state of several sensors to decide what action to take.
+ * Each second, the system reads data from sensors that are either an active or inactive. Based on the current
+ * state of all sensors, the controller must perform exactly one action, such as activating a warning, checking
+ * a specific zone, or declaring an intrusion. Write a C program that reads the sensor status as input and
+ * prints the corresponding system action.
+ * Hints:
+ * 1. The most determinative action wins for every possible combination of sensor states.
+ * 2. You are not allowed to use any conditional statements (if, else if, else, or the ternary operator?).
+ * 3. You are not allowed to use logical operators.
+ * 4. You must use a single switch statement to control the program&#x27;s behavior.
+ * 5. The program should handle all possible combinations of the sensors&#x27; active/inactive states and print the appropriate response each time.
+ * 6. All sensors are inactive, the system should remain idle.
+ * 7. If some sensors are active, the system should issue warnings or alerts based on the situation.
+ * 8. If all sensors are active, the system should declare a confirmed intrusion.
+ * Solution:
+ * We can solve this problem simply by assigning each case its own distinct integer.
+ * There are 2 possibilities for a sensor and therefore there are 2^4 = 16 cases.
+ * Using arrays we can assign each case its own index value and print it as per the encoded binary integer.
+ */
+#include &lt;stdio.h&gt;
+
+int casekey(int door, int window, int motion, int glass) {
+    int key = (door &lt;&lt; 3) | (window &lt;&lt; 2) | (motion &lt;&lt; 1) | glass;
+    return key;
+}
+
+int main() {
+    int door, window, motion, glass, key;
+    char choice;
+
+    static const char *action[16] = {
+        &quot;IDLE&quot;, &quot;CHECK WINDOW&quot;, &quot;WARN MOTION&quot;, &quot;WARN MOTION WINDOW&quot;,
+        &quot;CHECK DOOR&quot;, &quot;WARN DOOR WINDOW&quot;, &quot;INTRUSION SUSPECTED&quot;, &quot;INTRUSION CONFIRMED&quot;,
+        &quot;GLASS ONLY&quot;, &quot;DOOR GLASS&quot;, &quot;MOTION GLASS&quot;, &quot;MOTION WINDOW GLASS&quot;,
+        &quot;DOOR WINDOW&quot;, &quot;DOOR WINDOW GLASS&quot;, &quot;DOOR MOTION GLASS&quot;, &quot;ALL SENSORS&quot;
+    };
+
+    do {
+        printf(&quot;Sensors: Door, Window, Motion, Glass\n&quot;);
+        printf(&quot;Enter the state of each sensor in binary (0 or 1): &quot;);
+        scanf(&quot;%d %d %d %d&quot;, &amp;door, &amp;window, &amp;motion, &amp;glass);
+
+        key = casekey(door, window, motion, glass);
+        printf(&quot;Action: %s\n&quot;, action[key]);
+
+        printf(&quot;Want to continue? (y/n): &quot;);
+        scanf(&quot; %c&quot;, &amp;choice);
+        printf(&quot;\n&quot;);
+    } while (choice == &#x27;y&#x27; || choice == &#x27;Y&#x27;);
+
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+                </ul>
+            </div>
+        </li>
+
+                        <li class="border rounded-lg overflow-hidden">
+                            <div class="folder-header bg-gray-100 p-4 cursor-pointer hover:bg-blue-100 transition-colors duration-200" onclick="toggleFolder('khurapati-idea')">
+                                <div class="flex items-center justify-between">
+                                    <div class="flex items-center">
+                                        <svg class="w-6 h-6 text-blue-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M3 7v10a2 2 0 002 2h14a2 2 0 002-2V9a2 2 0 00-2-2h-6l-2-2H5a2 2 0 00-2 2z"></path></svg>
+                                        <span class="font-medium text-gray-800">khurapati-idea</span>
+                                        <span class="ml-2 text-sm text-gray-500">(2 files)</span>
+                                    </div>
+                                    <div class="flex items-center space-x-4">
+                                        <a href="https://github.com/notamitgamer/bsc/tree/main/khurapati-idea" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" onclick="event.stopPropagation()" title="View folder on GitHub">
+                                            <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                        </a>
+                                        <div class="chevron" id="chevron-khurapati-idea"><svg class="w-5 h-5 text-gray-500 transition-transform duration-200" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M19 9l-7 7-7-7"></path></svg></div>
+                                    </div>
+                                </div>
+                            </div>
+                            <div class="folder-content hidden bg-white" id="folder-khurapati-idea">
+                                <ul class="divide-y divide-gray-200">
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">KI001.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/khurapati-idea/KI001.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-khurapati-idea-KI001_c', 'KI001.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-khurapati-idea-KI001_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/khurapati-idea/KI001.c">
+                                            <pre><code class="language-c">// khurapati idea no. : 1
+// Idea : we can use the side effect of printf function to get length of any string or number
+// Author - Amit Dutta, Date - 16-10-2025
+
+#include &lt;stdio.h&gt;
+int main()
+{
+    // testing number
+    int num, len = -13 /* here minus 13 because we will remove the massage characters in line 10 */;
+    printf(&quot;Enter a number to get the length : &quot;);
+    scanf(&quot;%d&quot;, &amp;num);
+    len += printf(&quot;Your input : %d&quot;, num); // here the &quot;Your input : &quot;, this 13 characters are extra
+    printf(&quot;\nLength : %d&quot;, len);
+
+    // testing char
+    char a[20];
+    len = -13;
+    while (getchar() != &#x27;\n&#x27;)
+        ;
+    printf(&quot;\nEnter a word to get the length : &quot;);
+    scanf(&quot;%19s&quot;, &amp;a);
+    len += printf(&quot;Your input : %s&quot;, a);  // here the &quot;Your input : &quot;, this 13 characters are extra
+    printf(&quot;\nLength : %d&quot;, len);
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">KI002.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/khurapati-idea/KI002.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-khurapati-idea-KI002_c', 'KI002.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-khurapati-idea-KI002_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/khurapati-idea/KI002.c">
+                                            <pre><code class="language-c">/* Author - Amit Dutta, Date - 05th November, 2025 */
+
+/* Plan - checking for edge case */
+
+#include &lt;stdio.h&gt;
+int main()
+{
+    printf(&quot;Starting.....\n&quot;);
+
+    for (int i = 1; ; i++)
+    {
+        printf(&quot;i = %d\n&quot;, i);
+    }
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+                </ul>
+            </div>
+        </li>
+
+                        <li class="border rounded-lg overflow-hidden">
+                            <div class="folder-header bg-gray-100 p-4 cursor-pointer hover:bg-blue-100 transition-colors duration-200" onclick="toggleFolder('letusc')">
+                                <div class="flex items-center justify-between">
+                                    <div class="flex items-center">
+                                        <svg class="w-6 h-6 text-blue-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M3 7v10a2 2 0 002 2h14a2 2 0 002-2V9a2 2 0 00-2-2h-6l-2-2H5a2 2 0 00-2 2z"></path></svg>
+                                        <span class="font-medium text-gray-800">letusc</span>
+                                        <span class="ml-2 text-sm text-gray-500">(69 files)</span>
+                                    </div>
+                                    <div class="flex items-center space-x-4">
+                                        <a href="https://github.com/notamitgamer/bsc/tree/main/letusc" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" onclick="event.stopPropagation()" title="View folder on GitHub">
+                                            <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                        </a>
+                                        <div class="chevron" id="chevron-letusc"><svg class="w-5 h-5 text-gray-500 transition-transform duration-200" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M19 9l-7 7-7-7"></path></svg></div>
+                                    </div>
+                                </div>
+                            </div>
+                            <div class="folder-content hidden bg-white" id="folder-letusc">
+                                <ul class="divide-y divide-gray-200">
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">luc001.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/luc001.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-letusc-luc001_c', 'luc001.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-letusc-luc001_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/luc001.c">
+                                            <pre><code class="language-c">/* Temperature of a city in fahrenheit degrees is input through
+the keyboard. WAP to convert this temperature into Centigrade
+degrees. */
+/* Author - Amit Dutta, Date - 13 sep, 2025 */
+/* Chapter 1; Page 19; Question NO.: F(a) */
+
+#include&lt;stdio.h&gt;
+int main() {
+	float f, c;
+	printf(&quot;Enter the temperature of city in Fahrenheit : &quot;);
+	scanf(&quot;%f&quot;, &amp;f);
+	// formula (F - 32) 5/9
+	c = ((f - 32) * 5) / 9;
+	printf(&quot;\nTemperature in centigrade : %f&quot;, c);
+	return 0;
+}
+</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">luc002.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/luc002.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-letusc-luc002_c', 'luc002.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-letusc-luc002_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/luc002.c">
+                                            <pre><code class="language-c">/* The length and breadth of a rectangle and radius of a circle
+are input through the keyboard. Write a program to calculate the
+area and perimeter of the rectangle, and the area and circumference
+of the circle. */
+/* Author - Amit Dutta, Date - 16th SEP, 2025 */
+/* Let Us C; Page - 19; Chap- 1; QNo.: F(b) */
+
+#include &lt;stdio.h&gt;
+#include &lt;math.h&gt;
+int main()
+{
+	double len, bre, r, area_r, per, area_c, cir;
+	printf(&quot;Enter the length and breadth of the rectangle : &quot;);
+	scanf(&quot;%lf %lf&quot;, &amp;len, &amp;bre);
+	printf(&quot;Enter the Radius of the circle : &quot;);
+	scanf(&quot;%lf&quot;, &amp;r);
+	area_r = len * bre;
+	per = 2 * (len + bre);
+	area_c = M_PI * r * r;
+	cir = 2 * M_PI * r;
+	printf(&quot;\nArea of Rectangle       : %lf&quot;
+		   &quot;\nPerimeter of Rectangle  : %lf&quot;
+		   &quot;\nArea of Circle          : %lf&quot;
+		   &quot;\nCircumference of Circle : %lf&quot;,
+		   area_r, per, area_c, cir);
+	return 0;
+}
+</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">luc003.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/luc003.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-letusc-luc003_c', 'luc003.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-letusc-luc003_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/luc003.c">
+                                            <pre><code class="language-c">/* Paper of size AO has dimensions 1189 mm x 841 mm.
+Each subsequent size A(n) is defined as A(n-1) cut in
+half, parallel to its shorter sides. Thus, paper of
+size A1 would have dimensions 841 mm x 594 mm. Write
+a program to calculate and print paper sizes A0,�
+A1,�A2,�...�A8. */
+/* Author - Amit Dutta, Date - 16th SEP, 2025 */
+/* Let Us C; Page - 19; Chap- 1; QNo.: F(c) */
+
+#include&lt;stdio.h&gt;
+#include&lt;math.h&gt;
+int main() {
+	double s_long = 1189.0, s_short = 841.0, temp;
+	int i;
+	printf(&quot;A0 Dimension : %g mm x %g mm&quot;, floor(s_long), floor(s_short));
+	for (i = 1; i &lt;= 8; i++) {
+		temp = s_long;
+		s_long = s_short;
+		s_short = temp / 2;
+		printf(&quot;\nA%d Dimension : %g mm x %g mm&quot;, i, floor(s_long), floor(s_short));
+	}
+	return 0;
+}
+</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">luc004.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/luc004.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-letusc-luc004_c', 'luc004.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-letusc-luc004_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/luc004.c">
+                                            <pre><code class="language-c">/* If a five digit number is input through the keyboard,
+write a program to calculate the sum of it&#x27;s digit.
+(Hint : Use the modulus operator %) */
+/* Author - Amit Dutta, Date - 28th SEP, 2025 */
+/* Let Us C; Page - 37; Chap- 2; QNo.: G(a) */
+
+#include &lt;stdio.h&gt;
+int main()
+{
+    int inp, result = 0, i, temp;
+    printf(&quot;Enter a five digit number : &quot;);
+    scanf(&quot;%d&quot;, &amp;inp);
+    if (inp &lt; 10000 || inp &gt; 99999)
+    {
+        printf(&quot;\nPlease enter a valid five digit number.&quot;);
+        return 1;
+    }
+    temp = inp;
+    for (i = 1; i &lt;= 5; i++)
+    {
+        result = result + (inp % 10);
+        inp = inp / 10;
+    }
+    printf(&quot;\nSum of the digit &#x27;%d&#x27; is : %d&quot;, temp, result);
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">luc005.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/luc005.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-letusc-luc005_c', 'luc005.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-letusc-luc005_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/luc005.c">
+                                            <pre><code class="language-c">/* Write a program to recive Cartesian
+co-ordinates (x, y) of a point and convert
+them into Polar co-ordinates (r, phi)
+    Hint : r = sqrt (x^2 + y^2) and phi = tan^-1 (y/x) */
+/* Author - Amit Dutta, Date - 28th SEP, 2025 */
+/* Let Us C; Page - 37; Chap- 2; QNo.: G(b) */
+
+#include &lt;stdio.h&gt;
+#include &lt;math.h&gt;
+int main()
+{
+    double x, y, r, phi;
+    printf(&quot;Enter the Cartesian Co-Ordinates in this format &#x27;x, y&#x27; : &quot;);
+    scanf(&quot;%lf, %lf&quot;, &amp;x, &amp;y);
+    r = sqrt(pow(x, 2) + pow(y, 2));
+    phi = atan2(y, x);
+    printf(&quot;\nPolar Co-Ordinates are : (%g, %g Rad)&quot;, r, phi);
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">luc006.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/luc006.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-letusc-luc006_c', 'luc006.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-letusc-luc006_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/luc006.c">
+                                            <pre><code class="language-c">/* Write a program to receive values of latitude (L1, L2) and longitude
+(G1, G2), in degrees, of two places on the earth and output the distance
+(D) between them in nautical miles. The formula for distance in nautical
+miles is :
+    D = 3963 cos^-1(sin L1 sin L2 + cos L1 cos L2 * cos(G2 - G1))
+*/
+/* Author - Amit Dutta, Date - 29th SEP, 2025 */
+/* Let Us C, Chap - 2, Page - 37, Qn no.: G(c) */
+
+#include &lt;stdio.h&gt;
+#include &lt;math.h&gt;
+int main()
+{
+    double l1, l2, g1, g2, d;
+    printf(&quot;Enter the Latitude in &#x27;L1, L2&#x27; format : &quot;);
+    scanf(&quot;%lf, %lf&quot;, &amp;l1, &amp;l2);
+    printf(&quot;Enter the Longitude in &#x27;G1, G2&#x27; format : &quot;);
+    scanf(&quot;%lf, %lf&quot;, &amp;g1, &amp;g2);
+    // Converting degree to radian because function from math.h use radian not degree
+    l1 = l1 * (M_PI / 180);
+    l2 = l2 * (M_PI / 180);
+    g1 = g1 * (M_PI / 180);
+    g2 = g2 * (M_PI / 180);
+    d = 3963 * acos(sin(l1) * sin(l2) + cos(l1) * cos(l2) * cos(g2 - g1));
+    printf(&quot;Distance in nautical miles : %g&quot;, d);
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">luc007.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/luc007.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-letusc-luc007_c', 'luc007.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-letusc-luc007_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/luc007.c">
+                                            <pre><code class="language-c">/* Wind-chill factor is the felt air temperature on exposed skin due to wind.
+The wind-chill temperature is always lower than the air temperature, and is
+calculated as per the following formula.
+    wcf = 35.74 + 0.6215t + (0.4275t - 35.75) * v^0.16
+Where t is temperature and v is wind velocity. Write a program to receive
+values of t and v and calcualate wind-chill factor (wcf). */
+/* Author - Amit Dutta, Date - 30th SEP, 2025 */
+/* Let Us C, Chap - 2, Page - 37, Qn No.: G(d) */
+
+#include &lt;stdio.h&gt;
+#include &lt;math.h&gt;
+int main()
+{
+    double t, v, wcf;
+    printf(&quot;Enter the temperature and velociy of the wind : &quot;);
+    scanf(&quot;%lf %lf&quot;, &amp;t, &amp;v);
+    wcf = 35.74 + (0.6215 * t) + (((0.4275 * t) - 35.75) * pow(v, 0.16));
+    printf(&quot;\nWind-chill factor (wcf) : %g&quot;, wcf);
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">luc008.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/luc008.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-letusc-luc008_c', 'luc008.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-letusc-luc008_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/luc008.c">
+                                            <pre><code class="language-c">/* If value of an angle is input through the keyboard,
+write a program to print all its trigonometric ratios. */
+/* Author - Amit Dutta, Date - 30th SEP, 2025 */
+/* Let Us C, Chap - 2, Page - 37, Qn No.: G(e) */
+
+#include &lt;stdio.h&gt;
+#include &lt;math.h&gt;
+int main()
+{
+    double inp, rsin, rcos, rtan, rcosec, rsec, rcot;
+    printf(&quot;Enter the Angle in degree : &quot;);
+    scanf(&quot;%lf&quot;, &amp;inp);
+    inp = inp * (M_PI / 180); //changing degree to radian
+    rsin = sin(inp);
+    rcos = cos(inp);
+    rtan = tan(inp);
+    rcosec = 1 / rsin;
+    rsec = 1 / rcos;
+    rcot = 1 / rtan;
+    printf(&quot;\nTrigonometric ratios :-&quot;
+           &quot;\nsin   = %g &quot;
+           &quot;\ncos   = %g&quot;
+           &quot;\ntan   = %g&quot;
+           &quot;\ncosec = %g&quot;
+           &quot;\nsec   = %g&quot;
+           &quot;\ncot   = %g&quot;,
+           rsin, rcos, rtan, rcosec, rsec, rcot);
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">luc009.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/luc009.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-letusc-luc009_c', 'luc009.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-letusc-luc009_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/luc009.c">
+                                            <pre><code class="language-c">/* Two numbers are input through the keyboard into two locations
+C and D. Write a program to interchange the contents of C and D. */
+/* Author - Amit Dutta, Date - 30th SEP, 2025 */
+/* Let Us C, Chap - 2, Page - 37, Qn No.: G(d) */
+
+#include &lt;stdio.h&gt;
+int main()
+{
+    double a, b;
+    printf(&quot;Enter the two number A and B : &quot;);
+    scanf(&quot;%lf %lf&quot;, &amp;a, &amp;b);
+    printf(&quot;\nBefore Interchange : &quot;);
+    printf(&quot;\nA = %g (Memory location = %p)&quot;, a, &amp;a);
+    printf(&quot;\nB = %g (Memory location = %p)&quot;, b, &amp;b);
+    a = a + b;
+    b = a - b;
+    a = a - b;
+    printf(&quot;\nAfter Interchange :&quot;);
+    printf(&quot;\nA = %g (Memory location = %p)&quot;, a, &amp;a);
+    printf(&quot;\nB = %g (Memory location = %p)&quot;, b, &amp;b);
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">luc010.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/luc010.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-letusc-luc010_c', 'luc010.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-letusc-luc010_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/luc010.c">
+                                            <pre><code class="language-c">/* A five-digit number is entered through the keyboard. Write a program
+to obtain the reversed number and to etermine whether the original and reversed
+numbers are equal or not. */
+/* Author - Amit Dutta, Date - 1st OCT, 2025 */
+/* Let Us C, Chap - 3, Page - 53, Qn No.: f(a) */
+
+#include &lt;stdio.h&gt;
+int main()
+{
+    int num, rev, temp, i;
+    printf(&quot;Please enter the number : &quot;);
+    scanf(&quot;%d&quot;, &amp;num);
+    if (num &lt; 10000 || num &gt; 99999)
+    {
+        printf(&quot;\nPlease enter a five digit number.&quot;);
+        return 1;
+    }
+    temp = num;
+    for (i = 1; i &lt;= 5; i++)
+    {
+        rev = (rev * 10) + num % 10;
+        num = num / 10;
+    }
+    printf(&quot;\nReverse of the Input number : %d&quot;, rev);
+    if (rev == temp)
+        printf(&quot;\nOriginal and reversed numbers are equal.&quot;);
+    else
+        printf(&quot;\nOrigianl and reversed numbers are not equal.&quot;);
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">luc011.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/luc011.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-letusc-luc011_c', 'luc011.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-letusc-luc011_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/luc011.c">
+                                            <pre><code class="language-c">/* If ages of Ram, Shyam and Ajay are input through the keyboard,
+write a program to determine the youngest of the three. */
+/* Author - Amit Dutta, Date - 1st OCT, 2025 */
+/* Let Us C, Chap- 3, Page - 53, Qn No.: f(b) */
+
+#include &lt;stdio.h&gt;
+int main()
+{
+    int ram, shyam, ajay;
+    printf(&quot;Please enter the age of Ram, Shyam and Ajay : &quot;);
+    scanf(&quot;%d %d %d&quot;, &amp;ram, &amp;shyam, &amp;ajay);
+    if (ram == shyam || ram == ajay || shyam == ajay)
+        printf(&quot;\nThree must have different age.&quot;);
+    if (ram &lt; shyam &amp;&amp; ram &lt; ajay)
+        printf(&quot;\nRam is the youngest. Age : %d&quot;, ram);
+    if (shyam &lt; ram &amp;&amp; shyam &lt; ajay)
+        printf(&quot;\nShyam is the youngest. Age : %d&quot;, shyam);
+    if (ajay &lt; ram &amp;&amp; ajay &lt; shyam)
+        printf(&quot;\nAjay is the youngest. Age : %d&quot;, ajay);
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">luc012.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/luc012.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-letusc-luc012_c', 'luc012.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-letusc-luc012_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/luc012.c">
+                                            <pre><code class="language-c">/* Write a program to check whether a triangle is valid or not,
+if three angles of the triangle are entered through the keyboard.
+A triangle is valid if the sum of all the three angles is equal to 180 degrees. */
+/* Author - Amit Dutta, Date - 1st OCT, 2025 */
+/* Let Us C, Chap- 3, Page - 53, Qn No.: f(c) */
+
+#include &lt;stdio.h&gt;
+int main()
+{
+    double angle1, angle2, angle3, sum;
+    printf(&quot;Enter the value of the three angle of the triangle : &quot;);
+    scanf(&quot;%lf %lf %lf&quot;, &amp;angle1, &amp;angle2, &amp;angle3);
+    sum = angle1 + angle2 + angle3;
+    if (sum == 180.0)
+        printf(&quot;\nThis Triangle is a valid one.&quot;);
+    else
+        printf(&quot;\nThis Triangle is not valid. Sum of the angles : %g&quot;, sum);
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">luc013.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/luc013.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-letusc-luc013_c', 'luc013.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-letusc-luc013_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/luc013.c">
+                                            <pre><code class="language-c">/* Write a program to find the absolute value
+of a number entered through the keyboard. */
+/* Author - Amit Dutta, Date - 1st OCT, 2025 */
+/* Let Us C, Chap- 3, Page - 53, Qn No.: f(d) */
+
+#include &lt;stdio.h&gt;
+#include &lt;math.h&gt;
+int main()
+{
+    double num;
+    printf(&quot;Enter the number : &quot;);
+    scanf(&quot;%lf&quot;, &amp;num);
+    num = abs(num);
+    printf(&quot;\nAbsolute value of the input is : %g&quot;, num);
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">luc014.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/luc014.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-letusc-luc014_c', 'luc014.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-letusc-luc014_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/luc014.c">
+                                            <pre><code class="language-c">/* Given the length and breadth of a rectangle, write a program to find
+whether the area of the rectangle is greater than it&#x27;s perimeter.
+For example, the area of the rectangle with length = 5 and breadth = 4
+is greater than its perimeter. */
+/* Author - Amit Dutta, Date - 1st OCT, 2025 */
+/* Let Us C, Chap- 3, Page - 53, Qn No.: f(e) */
+
+#include &lt;stdio.h&gt;
+int main()
+{
+    double len, bre, area, peri;
+    printf(&quot;Enter the length and breadth of the rectangle : &quot;);
+    scanf(&quot;%lf %lf&quot;, &amp;len, &amp;bre);
+    area = len * bre;
+    peri = 2 * (len + bre);
+    if (area &gt; peri)
+        printf(&quot;\nThe area of the rectangle is greater than it&#x27;s perimeter.&quot;);
+    else if (area &lt; peri)
+        printf(&quot;\nThe area of the rectangle is lower than it&#x27;s perimeter.&quot;);
+    else
+        printf(&quot;\nThe area of the rectangle is same as it&#x27;s perimeter.&quot;);
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">luc015.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/luc015.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-letusc-luc015_c', 'luc015.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-letusc-luc015_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/luc015.c">
+                                            <pre><code class="language-c">/* Given three points (x1, y1), (x2, y2), and (x3, y3),
+write a program to check if the three poins fall on one straight line. */
+/* Author - Amit Dutta, Date - 1st OCT, 2025 */
+/* Let Us C, Chap- 3, Page - 53, Qn No.: f(f) */
+
+#include &lt;stdio.h&gt;
+#include &lt;math.h&gt;
+#define EPSILON 0.0001
+// Define a small tolerance value (EPSILON) for safe floating-point comparison
+// This is critical because of minor rounding errors in computer arithmetic.
+int main()
+{
+    double x1, x2, x3, y1, y2, y3, area;
+    printf(&quot;Enter the point A(x1, y1) : &quot;);
+    scanf(&quot;%lf %lf&quot;, &amp;x1, &amp;y1);
+    printf(&quot;Enter the point B(x2, y2) : &quot;);
+    scanf(&quot;%lf %lf&quot;, &amp;x2, &amp;y2);
+    printf(&quot;Enter the point C(x3, y3) : &quot;);
+    scanf(&quot;%lf %lf&quot;, &amp;x3, &amp;y3);
+    area = 0.5 * ((x1 * (y2 - y3)) + (x2 * (y3 - y1)) + (x3 * (y1 - y2)));
+    if (fabs(area) &lt; EPSILON) // abs() for integer, fabs() for float, double
+        printf(&quot;\nA(%g, %g), B(%g, %g) and C(%g, %g) points fall on one straight line.&quot;, x1, y1, x2, y2, x3, y3);
+    else
+        printf(&quot;\nA(%g, %g), B(%g, %g) and C(%g, %g) points doesn&#x27;t fall on one straight line.&quot;, x1, y1, x2, y2, x3, y3);
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">luc016.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/luc016.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-letusc-luc016_c', 'luc016.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-letusc-luc016_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/luc016.c">
+                                            <pre><code class="language-c">/* Given the coordiantes (x, y) of center of a circle and its radius,
+write a program that will determine whether a point lies inside the circle,
+on the circle or outside the circle. (Hint : Use sqrt() and pow() functions.) */
+/* Author - Amit Dutta, Date - 1st OCT, 2025 */
+/* Let Us C, Chap- 3, Page - 53, Qn No.: f(g) */
+
+#include &lt;stdio.h&gt;
+#include &lt;math.h&gt;
+// Define a small tolerance value (EPSILON) for reliable floating-point comparison
+#define EPSILON 0.0001
+
+int main()
+{
+    double h, k;
+    double R;
+    double x, y;
+    double distance_sq;
+    printf(&quot;Enter the center coordinates (h, k) : &quot;);
+    scanf(&quot;%lf %lf&quot;, &amp;h, &amp;k);
+    printf(&quot;Enter the radius (R) : &quot;);
+    scanf(&quot;%lf&quot;, &amp;R);
+    printf(&quot;Enter the point P coordinates (x, y) : &quot;);
+    scanf(&quot;%lf %lf&quot;, &amp;x, &amp;y);
+    distance_sq = pow(x - h, 2) + pow(y - k, 2);
+    double radius_sq = R * R;
+    // Case 1: On the circle (D^2 = R^2) - Use EPSILON for safety!
+    if (fabs(distance_sq - radius_sq) &lt; EPSILON)
+    {
+        printf(&quot;The point P(%g, %g) lies ON THE CIRCLE.\n&quot;, x, y);
+    }
+    // Case 2: Inside the circle (D^2 &lt; R^2)
+    else if (distance_sq &lt; radius_sq)
+    {
+        printf(&quot;The point P(%g, %g) lies INSIDE THE CIRCLE.\n&quot;, x, y);
+    }
+    // Case 3: Outside the circle (D^2 &gt; R^2)
+    else
+    {
+        printf(&quot;The point P(%g, %g) lies OUTSIDE THE CIRCLE.\n&quot;, x, y);
+    }
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">luc017.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/luc017.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-letusc-luc017_c', 'luc017.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-letusc-luc017_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/luc017.c">
+                                            <pre><code class="language-c">/* Given a point (x, y), write a program to find out if it lies on X-axis, Y-axis or origin. */
+/* Author - Amit Dutta, Date - 1st OCT, 2025 */
+/* Let Us C, Chap- 3, Page - 53, Qn No.: f(h) */
+
+#include &lt;stdio.h&gt;
+#include &lt;math.h&gt;
+#define EPSILON 0.00001
+
+int main()
+{
+    double x, y;
+    printf(&quot;Enter the point P(x, y) : &quot;);
+    scanf(&quot;%lf %lf&quot;, &amp;x, &amp;y);
+    if (fabs(x) &lt; EPSILON &amp;&amp; fabs(y) &lt; EPSILON)
+        printf(&quot;\nPoint P(%g, %g) lies on the origin.&quot;, x, y);
+    else if (fabs(x) &lt; EPSILON)
+        printf(&quot;\nPoint P(%g, %g) lies on the Y-Axis.&quot;, x, y);
+    else if (fabs(y) &lt; EPSILON)
+        printf(&quot;\nPoint P(%G, %g) lies on the X-Axis.&quot;, x, y);
+    else
+        printf(&quot;\nThe point P(%g, %g) lies in a QUADRANT (not on an axis or the origin).&quot;, x, y);
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">luc018-logic.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/luc018-logic.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-letusc-luc018-logic_c', 'luc018-logic.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-letusc-luc018-logic_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/luc018-logic.c">
+                                            <pre><code class="language-c">/* According to Gregorian calender, it was Monday on the date 01/01/01.
+Write a program to find out what is the day on 1st January of any input year. */
+/* Author - Amit Dutta, Date - 1st OCT, 2025 */
+/* Let Us C, Chap- 3, Page - 53, Qn No.: f(i) */
+
+#include &lt;stdio.h&gt;
+
+/**
+ * @brief Determines if a given year is a leap year.
+ * * The rule: A year is a leap year if it is divisible by 4, UNLESS it is 
+ * divisible by 100 but NOT by 400.
+ * * @param year The year to check.
+ * @return 1 if it is a leap year, 0 otherwise.
+ */
+int is_leap(int year) {
+    // Check if divisible by 400 OR (divisible by 4 AND not divisible by 100)
+    if ((year % 400 == 0) || (year % 4 == 0 &amp;&amp; year % 100 != 0)) {
+        return 1;
+    }
+    return 0;
+}
+
+/**
+ * @brief Calculates the day of the week for January 1st of the given year.
+ * * The base date is 01/01/01, which was a Monday (index 1).
+ * * Day Mapping: 0:Sunday, 1:Monday, 2:Tuesday, 3:Wednesday, 4:Thursday, 5:Friday, 6:Saturday
+ */
+int main() {
+    long long year; // Use long long for year input if years far in the future/past are tested
+    int i;
+    long long total_days = 0;
+    int day_index;
+    
+    // Day names array for output
+    const char *day_names[] = {&quot;Sunday&quot;, &quot;Monday&quot;, &quot;Tuesday&quot;, &quot;Wednesday&quot;, &quot;Thursday&quot;, &quot;Friday&quot;, &quot;Saturday&quot;};
+
+    printf(&quot;Enter the year (e.g., 2025): &quot;);
+    if (scanf(&quot;%lld&quot;, &amp;year) != 1 || year &lt; 1) {
+        printf(&quot;Invalid year input. Please enter a positive integer year (&gt;= 1).\n&quot;);
+        return 1;
+    }
+
+    // --- Core Logic: Calculate Total Days ---
+    
+    // We only need to consider the years that have *passed* before the target year.
+    // So, we count days from the end of year 0 up to the end of year (year - 1).
+    int years_passed = year - 1;
+    
+    // 1. Calculate the number of leap days up to the end of year (year - 1)
+    // Formula based on Gregorian calendar rules for years Y-1:
+    // (Y-1)/4 - (Y-1)/100 + (Y-1)/400
+    long long leap_years = years_passed / 4 - years_passed / 100 + years_passed / 400;
+
+    // 2. Total days = (Number of years * 365) + (Number of leap years)
+    // Note: The loop method (below) is more intuitive but the formula is faster.
+    // We will use the direct formula for efficiency.
+    total_days = years_passed * 365 + leap_years;
+
+    // --- Alternate Loop Method (for conceptual simplicity) ---
+    /*
+    for (i = 1; i &lt; year; i++) {
+        total_days += 365;
+        if (is_leap(i)) {
+            total_days += 1; // Add 1 for the leap day
+        }
+    }
+    */
+    
+    // --- Determine the Day of the Week ---
+    
+    // Since 01/01/01 was Monday (index 1), we use the following setup:
+    // Index 1 corresponds to Monday.
+    // The calculation gives the number of days *past* the Monday start (01/01/01).
+    // The modulo operation gives the remainder (0-6).
+    
+    // 0 days elapsed (Year 1): total_days=0. (0 + 1) % 7 = 1 (Monday). Correct.
+    // 365 days elapsed (Year 2): total_days=365. (365 + 1) % 7 = 2 (Tuesday). Correct. (365 mod 7 = 1, 1+1 = 2)
+    
+    day_index = (total_days + 1) % 7;
+    
+    // Correct the Day Index to match the array (0:Sun, 1:Mon, ..., 6:Sat)
+    // The +1 adjusts for the Monday starting point (index 1).
+    
+    printf(&quot;\nOn January 1st, %lld, the day was: **%s**.\n&quot;, year, day_names[day_index]);
+
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">luc018.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/luc018.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-letusc-luc018_c', 'luc018.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-letusc-luc018_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/luc018.c">
+                                            <pre><code class="language-c">/* According to Gregorian calender, it was Monday on the date 01/01/01.
+if any year is input through the keyboard write a program to find out
+what is the day on 1st January of this year. */
+/* Author - Amit Dutta, Date - 1st OCT, 2025 */
+/* Let Us C, Chap- 3, Page - 53, Qn No.: f(i) */
+
+#include &lt;stdio.h&gt;
+
+int is_leap(int year) {
+    if ((year % 400 == 0) || (year % 4 == 0 &amp;&amp; year % 100 != 0)) {
+        return 1;
+    }
+    return 0;
+}
+
+int main() {
+    long long year; // long long for year input if years far in the future/past are tested
+    int i;
+    long long total_days = 0;
+    int day_index;
+    
+    // Day names array for output
+    const char *day_names[] = {&quot;Sunday&quot;, &quot;Monday&quot;, &quot;Tuesday&quot;, &quot;Wednesday&quot;, &quot;Thursday&quot;, &quot;Friday&quot;, &quot;Saturday&quot;};
+
+    printf(&quot;Enter the year (e.g., 2025): &quot;);
+    if (scanf(&quot;%lld&quot;, &amp;year) != 1 || year &lt; 1) {
+        printf(&quot;Invalid year input. Please enter a positive integer year (&gt;= 1).\n&quot;);
+        return 1;
+    }
+    int years_passed = year - 1;
+    long long leap_years = years_passed / 4 - years_passed / 100 + years_passed / 400;
+    total_days = years_passed * 365 + leap_years;
+    day_index = (total_days + 1) % 7;
+    printf(&quot;\nOn January 1st, %lld, the day was: %s.\n&quot;, year, day_names[day_index]);
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">luc019.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/luc019.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-letusc-luc019_c', 'luc019.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-letusc-luc019_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/luc019.c">
+                                            <pre><code class="language-c">/* If the length of three sides of a triangle are entered through the
+keyboard, write a program to check whether the triangle is an isosceles,
+an equilateral, a scalene or a right-angled triangle. */
+/* Author - Amit Dutta, Date - 3rd OCT, 2025 */
+/* Let Us C, Chap- 4, Page - 71, Qn No.: D(a) */
+
+#include &lt;stdio.h&gt;
+#include &lt;math.h&gt;
+
+#define EPSILON 0.000001
+/* EPSILON is used to compare double values for approximate equality,
+mitigating floating-point precision errors. */
+
+int main()
+{
+    double side1, side2, side3;
+    printf(&quot;Please enter the length of three side of the triangle : &quot;);
+    scanf(&quot;%lf %lf %lf&quot;, &amp;side1, &amp;side2, &amp;side3);
+    if (side1 &lt; 1 || side2 &lt; 1 || side3 &lt; 1)
+    {
+        printf(&quot;\nLength of a side of triangle should be a positive integer.&quot;);
+        return 1;
+    }
+    if (side1 + side2 &lt; side3 || side1 + side3 &lt; side2 || side2 + side3 &lt; side1)
+    {
+        printf(&quot;\nEntered triangle is not VALID.&quot;);
+        return 1;
+    }
+    // isosceles check
+    if (side1 == side2 || side2 == side3 || side3 == side1)
+        printf(&quot;\nEntered triangle is a ISOSCELES triangle.&quot;);
+    else
+        printf(&quot;\nEntered triangle is NOT a ISOSCELES triangle.&quot;);
+    // equilateral check
+    if (side1 == side2 &amp;&amp; side2 == side3)
+        printf(&quot;\nEntered triangle is a EQUILATERAL triangle.&quot;);
+    else
+        printf(&quot;\nEntered triangle is NOT a EQUILATERAL triangle.&quot;);
+    // scalene check
+    if (side1 != side2 &amp;&amp; side2 != side3)
+        printf(&quot;\nEntered triangle is a SCALENE triangle.&quot;);
+    else
+        printf(&quot;\nEntered triangle is NOT a SCALENE triangle.&quot;);
+    // right-angle check
+    if (fabs(((side1 * side1) + (side2 * side2)) - (side3 * side3)) &lt; EPSILON ||
+        fabs(((side2 * side2) + (side3 * side3)) - (side1 * side1)) &lt; EPSILON ||
+        fabs(((side3 * side3) + (side1 * side1)) - (side2 * side2)) &lt; EPSILON)
+        printf(&quot;\nEntered triangle is a RIGHT-ANGLED triangle.&quot;);
+    else
+        printf(&quot;\nEntered triangle is NOT a RIGHT-ANGLED triangle.&quot;);
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">luc020.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/luc020.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-letusc-luc020_c', 'luc020.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-letusc-luc020_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/luc020.c">
+                                            <pre><code class="language-c">/* In digital world colors are specified in Red-Green-Blue (RGB) format,
+with values of R, G, B varying on an integer scale from 0 to 255. In print
+publishing the colors are mentioned in Cyan-Magenta-Yellow-Black (CMYK) format,
+with values of C, M, Y, and K varying on a real scale from 0.0 to 1.0.
+Write a program that converts RGB color to CMYK color as per the following formulae:
+    White   = Max(Red/255, Green/255, Blue/255)
+    Cyan    = (White-Red/255) / White
+    Magenta = (White-Green/255) / White
+    Yellow  = (White-Blue/255) / White
+    Black   = 1 - White
+Note that if the RGB values are all 0, then the CMY values are all 0 and the K value is 1. */
+/* Author - Amit Dutta, Date - 4th OCT, 2025 */
+/* Let Us C, Chap- 4, Page - 71, Qn No.: D(b) */
+
+#include &lt;stdio.h&gt;
+
+// declaring function
+double get_white(double red, double green, double blue)
+{
+    double max;
+    max = red / 255;
+    if (max &lt; (green / 255))
+        max = green / 255;
+    if (max &lt; (blue / 255))
+        max = blue / 255;
+    return max;
+}
+
+int main()
+{
+    double r, g, b, w, c = 0, m = 0, y = 0, k = 0;
+    printf(&quot;Enter the RGB color code in &#x27;R G B&#x27; format : &quot;);
+    scanf(&quot;%lf %lf %lf&quot;, &amp;r, &amp;g, &amp;b);
+
+    // checking for invalid input (negetive input)
+    if (r &lt; 0 || g &lt; 0 || b &lt; 0)
+    {
+        printf(&quot;\nRGB color code can not be a negetive number.&quot;);
+        return 1;
+    }
+
+    // checking for invalid input (out of range color code)
+    if (r &gt; 255 || g &gt; 255 || b &gt; 255)
+    {
+        printf(&quot;\nRGB color code can be maximum (255, 255, 255).&quot;);
+        return 1;
+    }
+
+    // converting RGB color code to CMYK color code
+    if (r == 0 &amp;&amp; g == 0 &amp;&amp; b == 0)
+        k = 1;
+    else
+    {
+        w = get_white(r, g, b);
+        c = (w - (r / 255)) / w;
+        m = (w - (g / 255)) / w;
+        y = (w - (b / 255)) / w;
+        k = 1 - w;
+    }
+
+    printf(&quot;\nRGB color (%g, %g, %g) equivalent to CMYK color (%g, %g, %g, %g).&quot;, r, g, b, c, m, y, k);
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">luc021.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/luc021.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-letusc-luc021_c', 'luc021.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-letusc-luc021_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/luc021.c">
+                                            <pre><code class="language-c">/* A certain grade of steel is graded according to the following conditions:
+    (i) Hardness must be greater than 50
+    (ii) Carbon content must be less than 0.7
+    (iii) Tensile strength must be greater than 5600
+
+The grades are as follows:
+    Grade is 10 if all three conditions are met
+    Grade is 9 if conditions (i) and (ii) are met
+    Grade is 8 if conditions (ii) and (iii) are met
+    Grade is 7 if conditions (i) and (iii) are met
+    Grade is 6 if only one condition is met
+    Grade is 5 if none of the conditions are met
+
+Write a program, which will require the user to give values of hardness,
+carbon content and tensile strength of the steel under consideration and output
+the grade of the steel. */
+
+/* Author - Amit Dutta, Date - 4th OCT, 2025 */
+/* Let Us C, Chap- 4, Page - 71, Qn No.: D(c) */
+
+#include &lt;stdio.h&gt;
+int main()
+{
+    double hardness, carbon_content, tensile_strength;
+    printf(&quot;Enter the details of the steel below - \n&quot;);
+    printf(&quot;1. Hardness         : &quot;);
+    scanf(&quot;%lf&quot;, &amp;hardness);
+    printf(&quot;2. Carbon Content   : &quot;);
+    scanf(&quot;%lf&quot;, &amp;carbon_content);
+    printf(&quot;3. Tensile Strength : &quot;);
+    scanf(&quot;%lf&quot;, &amp;tensile_strength);
+
+    // storing how many conditions are met as boolean result
+    int condition_met, condition1, condition2, condition3;
+    condition1 = hardness &gt; 50;
+    condition2 = carbon_content &lt; 0.7;
+    condition3 = tensile_strength &gt; 5600;
+    condition_met = condition1 + condition2 + condition3;
+
+    // now grading according the result
+    int grade;
+    if (condition_met == 3)
+        grade = 10;
+    else if (condition_met == 2)
+    {
+        if (condition1 &amp;&amp; condition2)
+            grade = 9;
+        else if (condition2 &amp;&amp; condition3)
+            grade = 8;
+        else if (condition1 &amp;&amp; condition3)
+            grade = 7;
+    }
+    else if (condition_met == 1)
+        grade = 6;
+    else
+        grade = 5;
+
+    // printing the result
+    printf(&quot;\n------------- Result -------------&quot;);
+    printf(&quot;\n1. Hardness         : Condition %s&quot;, condition1 ? &quot;MET&quot; : &quot;DID NOT MET&quot;);
+    printf(&quot;\n2. Carbon Content   : Condition %s&quot;, condition2 ? &quot;MET&quot; : &quot;DID NOT MET&quot;);
+    printf(&quot;\n3. Tensile Strength : Condition %s&quot;, condition3 ? &quot;MET&quot; : &quot;DID NOT MET&quot;);
+    printf(&quot;\nTotal Condition Met : %d&quot;, condition_met);
+    printf(&quot;\n\nGrade : %d\n\n&quot;, grade);
+    return 0;
+}
+
+/* I did not used this long variable names. I used very short just the first letter of the word. 
+After writting the whole program, I just renamed the valiables. This is possible in Visual Stdio Code. */</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">luc022.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/luc022.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-letusc-luc022_c', 'luc022.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-letusc-luc022_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/luc022.c">
+                                            <pre><code class="language-c">/* The Body Mass Index (BMI) is defined as ratio of  weight of the
+person (in Kilograms) to square of the height (in meters).
+Write a program that receives weight and height, calculate the BMI, and reports
+the BMI catagory as per the following table.
+    BMI Catagory            BMI
+    Starvation              &lt; 15
+    Anorexic                15.1 to 17.5
+    Underweight             17.6 to 18.5
+    Ideal                   18.6 to 24.9
+    Overweight              25 to 25.9
+    Obese                   30 to 39.9
+    Morbidly Obese          &gt;= 40
+*/
+/* Author - Amit Dutta, Date - 4th OCT, 2025 */
+/* Let Us C, Chap- 4, Page - 72, Qn No.: D(d) */
+
+#include &lt;stdio.h&gt;
+
+int main()
+{
+    double weight, height, bmi;
+    printf(&quot;Enter your Weight (in Kilograms) and Height (in Meters) : &quot;);
+    scanf(&quot;%lf %lf&quot;, &amp;weight, &amp;height);
+    bmi = weight / (height * height);
+    printf(&quot;\nCalculated BMI : %g&quot;, bmi);
+    if (bmi &lt; 15)
+        printf(&quot;\nBMI Catagory : Starvation&quot;);
+    else if (bmi &gt;= 15.1 &amp;&amp; bmi &lt;= 17.5)
+        printf(&quot;\nBMI Catagory : Anorexic&quot;);
+    else if (bmi &gt;= 17.6 &amp;&amp; bmi &lt;= 18.5)
+        printf(&quot;\nBMI Catagory : Underweight&quot;);
+    else if (bmi &gt;= 18.6 &amp;&amp; bmi &lt;= 24.9)
+        printf(&quot;\nBMI Catagory : Ideal&quot;);
+    else if (bmi &gt;= 25 &amp;&amp; bmi &lt;= 25.9)
+        printf(&quot;\nBMI Catagory : Overweight&quot;);
+    else if (bmi &gt;= 30 &amp;&amp; bmi &lt;= 39.9)
+        printf(&quot;\nBMI Catagory : Obese&quot;);
+    else if (bmi &gt;= 40)
+        printf(&quot;\nBMI Catagory : Morbidly Obese&quot;);
+    else
+        printf(&quot;\nBMI Catagory : Unclassified&quot;);
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">luc023.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/luc023.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-letusc-luc023_c', 'luc023.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-letusc-luc023_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/luc023.c">
+                                            <pre><code class="language-c">/* Using conditional operators determine :
+    (1) Whether the character entered through the keyboard is a
+        lower case alphabet or not.
+    (2) Whether a character entered through the keyboard is a special
+        symbol or not. */
+/* Author - Amit Dutta, Date - 5th OCT, 2025 */
+/* Let Us C, Chap- 4, Page - 72, Qn No.: E(a) */
+
+#include &lt;stdio.h&gt;
+int main()
+{
+    char inp;
+    printf(&quot;Enter the character : &quot;);
+    scanf(&quot;%c&quot;, &amp;inp);
+    printf(&quot;\nInput Character &#x27;%c&#x27; is %s a LOWER CASE ALPHABET.&quot;, inp, 
+        (inp &gt;= &#x27;a&#x27; &amp;&amp; inp &lt;= &#x27;z&#x27;) ? &quot;&quot; : &quot;NOT&quot;);
+    printf(&quot;\nInput Character &#x27;%c&#x27; is %s a SPECIAL SYMBOL.&quot;, inp, 
+        (inp &gt;= &#x27;a&#x27; &amp;&amp; inp &lt;= &#x27;z&#x27; || inp &gt;= &#x27;A&#x27; &amp;&amp; inp &lt;= &#x27;Z&#x27; 
+            || inp &gt;= &#x27;0&#x27; &amp;&amp; inp &lt;= &#x27;9&#x27;) ? &quot;NOT&quot; : &quot;&quot;);
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">luc024.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/luc024.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-letusc-luc024_c', 'luc024.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-letusc-luc024_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/luc024.c">
+                                            <pre><code class="language-c">/* Write a program using conditional operators to determine whether
+a year entered through the keyboard is a leap year or not. */
+/* Author - Amit Dutta, Date - 5th OCT, 2025 */
+/* Let Us C, Chap- 4, Page - 72, Qn No.: E(b) */
+
+#include &lt;stdio.h&gt;
+int main()
+{
+    int year;
+    printf(&quot;Enter the year : &quot;);
+    scanf(&quot;%d&quot;, &amp;year);
+    printf(&quot;\nYear %d is %s a Leapyear.&quot;, year, (year % 400 == 0 || year % 4 == 0 &amp;&amp; year % 100 != 0) ? &quot;&quot; : &quot;NOT&quot;);
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">luc025.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/luc025.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-letusc-luc025_c', 'luc025.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-letusc-luc025_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/luc025.c">
+                                            <pre><code class="language-c">/* Write a program to find the greates of the three numbers entered
+through the keyboard. Use conditional operators. */
+/* Author - Amit Dutta, Date - 6th OCT, 2025 */
+/* Let Us C, Chap- 4, Page - 72, Qn No.: E(c) */
+
+#include &lt;stdio.h&gt;
+int main()
+{
+    double num1, num2, num3, max;
+    printf(&quot;Enter three number : &quot;);
+    scanf(&quot;%lf %lf %lf&quot;, &amp;num1, &amp;num2, &amp;num3);
+    printf(&quot;\nGreatest of the three number &#x27;%g&#x27;, &#x27;%g&#x27; and &#x27;%g&#x27; is : &#x27;%g&#x27;&quot;, num1, num2, num3, 
+        (num1 &gt; num2 &amp;&amp; num1 &gt; num3) ? num1 : ((num2 &gt; num1 &amp;&amp; num2 &gt; num3) ? num2 : num3));
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">luc026.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/luc026.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-letusc-luc026_c', 'luc026.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-letusc-luc026_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/luc026.c">
+                                            <pre><code class="language-c">/* Write a program to recieve value of an angle in degreesand check
+whether sum of squares of sine and cosine of this angle is equal to 1. */
+/* Author - Amit Dutta, Date - 6th OCT, 2025 */
+/* Let Us C, Chap- 4, Page - 73, Qn No.: E(d) */
+
+#include &lt;stdio.h&gt;
+#include &lt;math.h&gt;
+#define EPSILON 0.0000001
+
+int main()
+{
+    double angle, result;
+    printf(&quot;Enter the angle value in degree : &quot;);
+    // checking if the input is other than number.
+    if(scanf(&quot;%lf&quot;, &amp;angle) != 1) {
+        printf(&quot;\nPlease enter a number.&quot;);
+        return 1;
+    }
+    angle = angle * (M_PI / 180); // converting degree to radian
+    result = pow(sin(angle), 2) + pow(cos(angle), 2);
+    (fabs(result - 1.0) &lt; EPSILON) ?
+    printf(&quot;\nsum of squares of sine and cosine of this angle is equal to 1.&quot;) :
+    printf(&quot;\nsum of squares of sine and cosine of this angle is NOT equal to 1.&quot;);
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">luc027.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/luc027.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-letusc-luc027_c', 'luc027.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-letusc-luc027_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/luc027.c">
+                                            <pre><code class="language-c">/* Rewrite the folowing program using conditional operations
+    #include&lt;stdio.h&gt;
+    int main()
+    {
+        float sal;
+        printf(&quot;Enter the salary&quot;);
+        scanf(&quot;%f&quot;, &amp;sal);
+        if(sal &gt;= 25000 &amp;&amp; sal &lt;= 40000)
+            printf(&quot;Manager\n&quot;);
+        else
+            if(sal &gt;= 15000 &amp;&amp; sal &lt; 25000)
+                printf(&quot;Accountant\n&quot;);
+            else
+                printf(&quot;Clerk\n&quot;);
+        return 0;
+    }
+*/
+/* Author - Amit Dutta, Date - 6th OCT, 2025 */
+/* Let Us C, Chap- 4, Page - 73, Qn No.: E(e) */
+
+#include &lt;stdio.h&gt;
+int main()
+{
+    float sal;
+    printf(&quot;Enter the salary&quot;);
+    scanf(&quot;%f&quot;, &amp;sal);
+    (sal &gt;= 25000 &amp;&amp; sal &lt;= 40000) ? printf(&quot;Manager\n&quot;) : 
+    ((sal &gt;= 15000 &amp;&amp; sal &lt; 25000) ? printf(&quot;Accountant\n&quot;) : printf(&quot;Clerk\n&quot;));
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">luc028.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/luc028.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-letusc-luc028_c', 'luc028.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-letusc-luc028_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/luc028.c">
+                                            <pre><code class="language-c">/* Write a program to print all the ASCII values and their equivalent
+characters using a while loop. The ASCII may vary from 0 to 255. */
+/* Author - Amit Dutta, Date - 7th OCT, 2025 */
+/* Let Us C, Chap- 5, Page - 87, Qn No.: B(a) */
+
+#include &lt;stdio.h&gt;
+int main()
+{
+    int i = 0;
+    printf(&quot;ASCII Value\tCharacter&quot;);
+    printf(&quot;\n-----------\t---------\n&quot;);
+    while (i &lt;= 255)
+    {
+        printf(&quot;%d.\t%c\n\n&quot;, i, i);
+        i++;
+    }
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">luc029.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/luc029.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-letusc-luc029_c', 'luc029.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-letusc-luc029_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/luc029.c">
+                                            <pre><code class="language-c">/* Write a program to print out all Armstrong numbers between 100
+and 500. If sum of cubes of each digit of the number is equal to the
+number itself, then the number is called an Armstrong number. For
+example, 153 = (1 * 1 * 1) + (5 * 5 * 5) + (3 * 3 * 3) */
+/* Author - Amit Dutta, Date - 7th OCT, 2025 */
+/* Let Us C, Chap- 5, Page - 87, Qn No.: B(b) */
+
+#include &lt;stdio.h&gt;
+#include &lt;math.h&gt;
+int main()
+{
+    int num = 100, temp1, temp2, res;
+    printf(&quot;Armstrong numbers between 100 and 500 :&quot;);
+    while (num &lt;= 500)
+    {
+        temp1 = num;
+        res = 0;
+        while (temp1 != 0)
+        {
+            temp2 = temp1 % 10;
+            res = res + pow(temp2, 3);
+            temp1 = temp1 / 10;
+        }
+        if (num == res)
+            printf(&quot;  %d&quot;, num);
+        num++;
+    }
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">luc030.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/luc030.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-letusc-luc030_c', 'luc030.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-letusc-luc030_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/luc030.c">
+                                            <pre><code class="language-c">/* Write a program for a matchstick game being played between the
+computer and a user. Your program should ensure that the computer
+always wins. Rules for the game are as follows :
+    - There are 21 matchsticks.
+    - The computer asks the player to pick 1, 2, 3, or 4 matchsticks.
+    - After the person picks, the computer does its picking.
+    - Whoever is forced to pick up the last matchstick loses the game.
+*/
+/* Author - Amit Dutta, Date - 8th OCT, 2025 */
+/* Let Us C, Chap- 5, Page - 87, Qn No.: B(c) */
+
+/* My Plan: The total number of matchsticks is 21. To guarantee a win,
+the computer ensures that after its turn, the number of remaining
+matchsticks is always a multiple of 5 plus 1 (i.e., 16, 11, 6, 1).
+This is achieved by making the sum of the player&#x27;s pick and the
+computer&#x27;s pick equal to 5 in each round. This forces the player
+to pick the final matchstick. */
+
+#include &lt;stdio.h&gt;
+int main()
+{
+    int remaining_matchsticks = 21, player_pick, computer_pick;
+    printf(&quot;                 --- Matchstick Game ---\n&quot;);
+    printf(&quot;Rules: There are 21 matchsticks. You can pick 1, 2, 3, or 4.\n&quot;);
+    printf(&quot;Whoever is forced to pick the last matchstick loses the game.\n&quot;);
+    while (remaining_matchsticks &gt; 1)
+    {
+        // game start
+        printf(&quot;\n--------------------------&quot;);
+        printf(&quot;\nRemaining Matchsticks : %d&quot;, remaining_matchsticks);
+
+        // player pick and checking input is valid or not
+        printf(&quot;\nYour turn: Pick 1, 2, 3, or 4 matchsticks: &quot;);
+        if (scanf(&quot;%d&quot;, &amp;player_pick) != 1)
+        {
+            printf(&quot;\n\tPlease enter a number.&quot;);
+            while (getchar() != &#x27;\n&#x27;)
+                ;
+            continue;
+        }
+
+        // checking player pick is valid or not
+        if (player_pick &lt; 1 || player_pick &gt; 4)
+        {
+            printf(&quot;\n\tPlease enter a number among 1, 2, 3 and 4.&quot;);
+            while (getchar() != &#x27;\n&#x27;)
+                ;
+            continue;
+        }
+
+        if (player_pick &gt; remaining_matchsticks)
+        {
+            printf(&quot;\nInvalid choice! There are not enough matchsticks left.&quot;);
+            while (getchar() != &#x27;\n&#x27;)
+                ;
+            continue;
+        }
+
+        // computer_picks
+        computer_pick = 5 - player_pick;
+        printf(&quot;\ncomputer_picks : %d&quot;, computer_pick);
+
+        // remaining matchsticks
+        remaining_matchsticks = remaining_matchsticks - (player_pick + computer_pick);
+    }
+
+    // game over
+    printf(&quot;\n----------------------------------\n&quot;);
+    printf(&quot;Only 1 matchstick is left.\n&quot;);
+    printf(&quot;You are forced to pick the last matchstick. You lose!\n&quot;);
+    printf(&quot;The computer wins.\n&quot;);
+
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">luc031-logic.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/luc031-logic.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-letusc-luc031-logic_c', 'luc031-logic.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-letusc-luc031-logic_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/luc031-logic.c">
+                                            <pre><code class="language-c">/* Write a program to enter numbers till the user wants. At the end it 
+should display the count of positive, negative and zeros entered. */
+/* Author - Amit Dutta, Date - 8th OCT, 2025 */
+/* Let Us C, Chap- 5, Page - 87, Qn No.: B(d) */
+
+/*
+ * DETAILED PROGRAM PLAN:
+ * 1. INITIALIZATION: Set three counters (positive_count, negative_count, zero_count) to zero.
+ * 2. INPUT LOOP: Start an infinite loop to continuously request user input.
+ * 3. READ INPUT: Use fgets() to read the user&#x27;s input as a generic string (char array). 
+ * This allows the program to accept multi-digit numbers (e.g., &quot;-500&quot;) or the command (&#x27;n&#x27;).
+ * 4. TERMINATION CHECK: Immediately check if the input string is exactly &quot;n&quot; using strcmp(). 
+ * If true, the user wants to quit, so break the loop.
+ * 5. VALIDATION &amp; CONVERSION: If the input is not &quot;n&quot;, use sscanf() to safely attempt to convert 
+ * the string into an integer.
+ * 6. COUNTING LOGIC: If sscanf() successfully reads an integer (sscanf returns 1):
+ * - If the number is &gt; 0, increment positive_count.
+ * - If the number is &lt; 0, increment negative_count.
+ * - If the number is == 0, increment zero_count.
+ * 7. ERROR HANDLING: If the input is neither &quot;n&quot; nor a valid number (sscanf returns 0), 
+ * inform the user of invalid input and continue the loop.
+ * 8. FINAL DISPLAY: After the loop terminates, print the final totals for positive, negative, and zero counts.
+ */
+
+#include &lt;stdio.h&gt;
+#include &lt;stdlib.h&gt; // for strtol
+#include &lt;string.h&gt; // for strcmp
+
+// Maximum size of the input line
+#define MAX_INPUT_LEN 15 
+
+int main() {
+    // Initialize counters
+    int positive_count = 0;
+    int negative_count = 0;
+    int zero_count = 0;
+
+    // Buffer to store the user&#x27;s input as a string (e.g., &quot;123&quot;, &quot;-50&quot;, or &quot;n&quot;)
+    char input_buffer[MAX_INPUT_LEN];
+    int number;
+
+    printf(&quot;--- Number Analyzer ---\n&quot;);
+    printf(&quot;Enter numbers one by one. Type &#x27;n&#x27; and press Enter to finish.\n\n&quot;);
+
+    // Loop until the user enters &#x27;n&#x27;
+    while (1) {
+        printf(&quot;Enter number or &#x27;n&#x27;: &quot;);
+
+        // Read the entire line of input into the buffer
+        if (fgets(input_buffer, MAX_INPUT_LEN, stdin) == NULL) {
+            // Handle EOF (end of file) or reading error
+            break;
+        }
+
+        // Remove the trailing newline character from the input_buffer
+        // The last character will be &#x27;\n&#x27; if the input was shorter than MAX_INPUT_LEN
+        size_t len = strlen(input_buffer);
+        if (len &gt; 0 &amp;&amp; input_buffer[len - 1] == &#x27;\n&#x27;) {
+            input_buffer[len - 1] = &#x27;\0&#x27;;
+        }
+
+        // 1. Check for the termination condition
+        if (strcmp(input_buffer, &quot;n&quot;) == 0) {
+            printf(&quot;\n&#x27;n&#x27; received. Stopping input...\n&quot;);
+            break; // Exit the while loop
+        }
+
+        // 2. Attempt to convert the input string to an integer
+        // sscanf attempts to read the string according to the format &quot;%d&quot; (decimal integer)
+        // It returns 1 if a number was successfully read.
+        int conversions = sscanf(input_buffer, &quot;%d&quot;, &amp;number);
+
+        if (conversions == 1) {
+            // Conversion was successful, now check the number&#x27;s sign
+            if (number &gt; 0) {
+                positive_count++;
+            } else if (number &lt; 0) {
+                negative_count++;
+            } else {
+                zero_count++;
+            }
+            printf(&quot;  -&gt; Number recorded: %d\n&quot;, number);
+        } else {
+            // Conversion failed. The input was neither &#x27;n&#x27; nor a valid integer.
+            printf(&quot;  -&gt; Invalid input. Please enter a valid number or &#x27;n&#x27;.\n&quot;);
+        }
+    }
+
+    // Display the final results
+    printf(&quot;\n====================================\n&quot;);
+    printf(&quot;   Analysis Complete\n&quot;);
+    printf(&quot;====================================\n&quot;);
+    printf(&quot;Positive numbers entered: %d\n&quot;, positive_count);
+    printf(&quot;Negative numbers entered: %d\n&quot;, negative_count);
+    printf(&quot;Zeroes entered:           %d\n&quot;, zero_count);
+    printf(&quot;Total numbers recorded:   %d\n&quot;, positive_count + negative_count + zero_count);
+    printf(&quot;====================================\n&quot;);
+
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">luc031.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/luc031.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-letusc-luc031_c', 'luc031.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-letusc-luc031_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/luc031.c">
+                                            <pre><code class="language-c">/* Write a program to enter numbers till the user wants. At the end it
+should display the count of positive, negative and zeros entered. */
+/* Author - Amit Dutta, Date - 8th OCT, 2025 */
+/* Let Us C, Chap- 5, Page - 87, Qn No.: B(d) */
+
+#include &lt;stdio.h&gt;
+int main()
+{
+    int choice = 1, num, positive_count = 0, negative_count = 0, zero_count = 0;
+    while (choice == 1)
+    {
+        printf(&quot;\nEnter the number (Type any character and press Enter to finish.) : &quot;);
+        choice = scanf(&quot;%d&quot;, &amp;num); // Checking whether the user has input any characters
+        if (choice == 1)
+        {
+            printf(&quot;Number recorded : %d&quot;, num);
+            if (num &lt; 0)
+                negative_count++;
+            else if (num &gt; 0)
+                positive_count++;
+            else if (num == 0)
+                zero_count++;
+        }
+        else 
+        {
+        // If the user inputs any characters, then choice = 0, it means he doesn&#x27;t want to give any more input;
+            choice = 0;
+            printf(&quot;\nCharacter received. Stopping input...\n&quot;);
+        }
+    }
+    // Display the final results
+    printf(&quot;\n====================================\n&quot;);
+    printf(&quot;   Analysis Complete\n&quot;);
+    printf(&quot;====================================\n&quot;);
+    printf(&quot;Positive numbers entered: %d\n&quot;, positive_count);
+    printf(&quot;Negative numbers entered: %d\n&quot;, negative_count);
+    printf(&quot;Zeroes entered:           %d\n&quot;, zero_count);
+    printf(&quot;Total numbers recorded:   %d\n&quot;, positive_count + negative_count + zero_count);
+    printf(&quot;====================================\n&quot;);
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">luc032.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/luc032.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-letusc-luc032_c', 'luc032.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-letusc-luc032_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/luc032.c">
+                                            <pre><code class="language-c">/* Write a program to recieve an integer and find its octal equivalent.
+(Hint : To obtain octal equivalent of an integer, Divide it continuously
+by 8 till dividend does not become zero, then write the remainders
+obtained in reverse derection.) */
+/* Author - Amit Dutta, Date - 8th OCT, 2025 */
+/* Let Us C, Chap- 5, Page - 87, Qn No.: B(e) */
+
+// using array
+
+#include &lt;stdio.h&gt;
+int main()
+{
+    int octal[20], decimal, index = 0, temp, rem;
+    printf(&quot;Enter the decimal number : &quot;);
+    scanf(&quot;%d&quot;, &amp;decimal);
+    temp = decimal;
+    while (temp != 0)
+    {
+        rem = temp % 8;
+        temp = temp / 8;
+        octal[index] = rem;
+        index++;
+    }
+    printf(&quot;\nDeciaml %d to octal : &quot;, decimal);
+    while ((index - 1) &gt;= 0)
+    {
+        printf(&quot;%d&quot;, octal[index - 1]);
+        index--;
+    }
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">luc033.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/luc033.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-letusc-luc033_c', 'luc033.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-letusc-luc033_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/luc033.c">
+                                            <pre><code class="language-c">/* Write a program to find the range of a set of numbers entered
+through the keyboard. Range is the difference between the smallest
+and biggest number in the list. */
+/* Author - Amit Dutta, Date - 8th OCT, 2025 */
+/* Let Us C, Chap- 5, Page - 87, Qn No.: B(f) */
+
+#include &lt;stdio.h&gt;
+int main()
+{
+    int choice = 1, set_of_numbers[30], num, index = -1;
+    while (choice == 1)
+    {
+        printf(&quot;\nEnter the number (Type any character and press Enter to finish.) : &quot;);
+        choice = scanf(&quot;%d&quot;, &amp;num); // Checking whether the user has input any characters
+        if (choice != 1)
+        {
+            // If the user inputs any characters, then choice = 0, it means he doesn&#x27;t want to give any more input;
+            choice = 0;
+            printf(&quot;\nCharacter received. Stopping input...\n&quot;);
+            break;
+        }
+        index++;
+        set_of_numbers[index] = num;
+    }
+    int max = set_of_numbers[0], min = set_of_numbers[0];
+    while (index &gt;= 0)
+    {
+        if (max &lt; set_of_numbers[index])
+            max = set_of_numbers[index];
+        if (min &gt; set_of_numbers[index])
+            min = set_of_numbers[index];
+        index--;
+    }
+    int range = max - min;
+    printf(&quot;\nBiggest number in the set  : %d&quot;, max);
+    printf(&quot;\nSmallest number in the set : %d&quot;, min);
+    printf(&quot;\nRange : %d&quot;, range);
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">luc034.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/luc034.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-letusc-luc034_c', 'luc034.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-letusc-luc034_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/luc034.c">
+                                            <pre><code class="language-c">/* Write a program to print the multiplication table of the number
+entered by the user. The table should get displayed in the following
+form :
+    29 * 1 = 29
+    29 * 2 = 58
+*/
+/* Author - Amit Dutta, Date - 20th OCT, 2025 */
+/* Let Us C, Chap- 6, Page - 105, Qn No.: B(a) */
+
+#include &lt;stdio.h&gt;
+int main()
+{
+    int i, num, res;
+    printf(&quot;Enter the number : &quot;);
+    scanf(&quot;%d&quot;, &amp;num);
+    printf(&quot;\n--- Multiplication Table ---\n&quot;);
+    for (i = 1; i &lt;= 10; i++)
+        printf(&quot;%d * %d = %d\n&quot;, num, i, num * i);
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">luc035.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/luc035.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-letusc-luc035_c', 'luc035.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-letusc-luc035_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/luc035.c">
+                                            <pre><code class="language-c">/* According to a study, the approximate level of intelligence of a
+person can be calculated using the following formula.
+    i = 2 + (y + 0.5x)
+write a program that will produce a table of values of i, y and x,
+where y varies from 1 to 6, and, for each value of y, x varies from
+5.5 to 12.5 in steps of 0.5 */
+/* Author - Amit Dutta, Date - 20th OCT, 2025 */
+/* Let Us C, Chap- 6, Page - 105, Qn No.: B(b) */
+
+#include &lt;stdio.h&gt;
+int main()
+{
+    double y, x;
+    printf(&quot;\n--- Approximate Intelligence ---\n&quot;);
+    for (y = 1; y &lt;= 6; y++)
+    {
+        printf(&quot;\tY = %d\n&quot;, y);
+        for (x = 5.5; x &lt;= 12.5; x += 0.5)
+        {
+            printf(&quot;Y: %g\t X: %.2g\t I: %g\n&quot;, y, x, 2 + (y + 0.5 * x));
+        }
+        printf(&quot;-----------------------\n&quot;);
+    }
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">luc036.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/luc036.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-letusc-luc036_c', 'luc036.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-letusc-luc036_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/luc036.c">
+                                            <pre><code class="language-c">/* When interest compounds q times per year at an annual rate of
+r % for n years, the principle p compounds to an amount a as per
+the following formula
+    a = p (1 + r / q) ^ nq
+Write a program to read 10 sets of p, r, n &amp; q and calculate the
+corresponding as&#x27; */
+/* Author - Amit Dutta, Date - 20th OCT, 2025 */
+/* Let Us C, Chap- 6, Page - 106, Qn No.: B(c) */
+
+// DEVELOPMENT STATUS: This implementation is currently untested. 
+// Please report any functional defects or errors by submitting a GitHub issue &quot;https://github.com/notamitgamer/bsc/issues&quot; with the updated code.
+
+#include &lt;stdio.h&gt;
+#include &lt;math.h&gt;
+int main()
+{
+    double interest, principalAmount, interestRate, timeInYears, compoundFactor, totalAmount;
+    int index;
+    for (index = 1; index &lt;= 10; index++)
+    {
+        printf(&quot;Enter Principle amount : &quot;);
+        scanf(&quot;%lf&quot;, &amp;principalAmount);
+        printf(&quot;Enter Rate of Interest : &quot;);
+        scanf(&quot;%lf&quot;, &amp;interestRate);
+        interestRate *= 0.01;
+        printf(&quot;Enter the Time (Years) : &quot;);
+        scanf(&quot;%lf&quot;, &amp;timeInYears);
+        printf(&quot;Compound count in one year : &quot;);
+        scanf(&quot;%lf&quot;, &amp;compoundFactor);
+        totalAmount = (principalAmount * pow((1 + interestRate / compoundFactor), (timeInYears * compoundFactor)));
+        interest = totalAmount - principalAmount;
+        printf(&quot;\nInterest : %.2f\nTotal Amount : %.2f\n\n&quot;, interest, totalAmount);
+    }
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">luc037.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/luc037.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-letusc-luc037_c', 'luc037.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-letusc-luc037_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/luc037.c">
+                                            <pre><code class="language-c">/* The natural logarithm can be approximated by the following series.
+    (x-1)/x + 1/2 ((x-1)/x)^2 + 1/2 ((x-1)/x)^3 + 1/2 ((x-1)/x)^4 + ...
+If x is input through the keyboard, write a program to calculate the
+sum of the first seven terms of this series. */
+/* Author - Amit Dutta, Date - 21st OCT, 2025 */
+/* Let Us C, Chap- 6, Page - 106, Qn No.: B(d) */
+
+#include &lt;stdio.h&gt;
+#include &lt;math.h&gt;
+
+double series(double x) // made this fn only for fun, making a fn was not necessary
+{
+    double result = (x - 1) / x;
+    int i;
+    for (i = 2; i &lt;= 7; i++)
+    {
+        result += 0.5 * pow(((x - 1) / x), i);
+    }
+    return result;
+}
+
+int main()
+{
+    double x;
+    printf(&quot;Enter the value for x : &quot;);
+    scanf(&quot;%lf&quot;, &amp;x);
+    printf(&quot;\nResult : %g&quot;, series(x));
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">luc038.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/luc038.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-letusc-luc038_c', 'luc038.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-letusc-luc038_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/luc038.c">
+                                            <pre><code class="language-c">/* Write a program to generate all Pythagorean Triplets with slide
+length less than or equal to 30. */
+/* Author - Amit Dutta, Date - 21st OCT, 2025 */
+/* Let Us C, Chap- 6, Page - 106, Qn No.: B(e) */
+
+#include &lt;stdio.h&gt;
+#include &lt;math.h&gt;
+
+int main()
+{
+    int a, b, c;
+    printf(&quot;Pythagorean Triplets with slide length less than or equal to 30 : \n&quot;);
+    for (a = 1; a &lt;= 30; a++)
+    {
+        for (b = a; b &lt;= 30; b++)
+        {
+            int c_square = a * a + b * b;
+            for (c = b + 1; c &lt;= 30; c++)
+            {
+                if (c * c == c_square)
+                    printf(&quot;(%d, %d, %d)\n&quot;, a, b, c);
+            }
+        }
+    }
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">luc039.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/luc039.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-letusc-luc039_c', 'luc039.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-letusc-luc039_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/luc039.c">
+                                            <pre><code class="language-c">/* Population of a town today is 100000. The population has increased
+steadily at the rate of 10% per year for last 10 years. Write a
+program to determine the population at the end of each year in the
+last decade. */
+/* Author - Amit Dutta, Date - 21st OCT, 2025 */
+/* Let Us C, Chap- 6, Page - 106, Qn No.: B(f) */
+
+#include &lt;stdio.h&gt;
+int main()
+{
+    int i, population = 100000;
+    printf(&quot;Present year : %d\n&quot;, population);
+    for (i = 1; i &lt;= 10; i++)
+    {
+        population /= 1.10;
+        printf(&quot;%d year ago : %d\n&quot;, i, population);
+    }
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">luc040-logic.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/luc040-logic.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-letusc-luc040-logic_c', 'luc040-logic.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-letusc-luc040-logic_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/luc040-logic.c">
+                                            <pre><code class="language-c">/* Ramanujan number (1729) is the smallest number that can be
+expressed as sum of cubes in two different ways - 1729 can be
+expressed as 1^3 + 12^3 and 9^3 + 10^3. Write a program to print all such
+numbers up to a reasonable limit. */
+/* Author - Amit Dutta, Date - 22nd - 23rd OCT, 2025 */
+/* Let Us C, Chap- 6, Page - 106, Qn No.: B(g) */
+
+// 1. INCLUDE SECTION
+#include &lt;stdio.h&gt; // Includes the standard input/output library, necessary for printf()
+
+// 2. CONSTANT DEFINITIONS (MACROS)
+// These define fixed values we can easily use and change later.
+#define LIMIT 100000 // The maximum number we want to search up to.
+// The maximum base value (a, b, c, or d) we need to check.
+// Since 47^3 is greater than 100,000, checking bases up to 47 covers the LIMIT.
+#define MAX_BASE_VAL 47
+
+// 3. MAIN FUNCTION
+int main()
+{
+    // 4. VARIABLE DECLARATION
+
+    // sum1 and sum2 store the results of a^3 + b^3 and c^3 + d^3.
+    // We use &#x27;long long&#x27; because cubes (like 47^3) are large and can exceed
+    // the capacity of a standard &#x27;int&#x27;, preventing errors.
+    long long sum1, sum2;
+
+    int count = 0; // Counter to keep track of how many Ramanujan numbers we find.
+
+    // This flag is used to optimize the search. If we find the second way (c^3 + d^3)
+    // to make sum1, we set this to 1 and immediately stop the inner loops.
+    int found_match;
+
+    // Print introductory message to the user.
+    printf(&quot;Ramanujan Number Finder (a^3 + b^3 = c^3 + d^3)\n&quot;);
+    printf(&quot;Searching up to %d (Max base value is %d)\n&quot;, LIMIT, MAX_BASE_VAL);
+    printf(&quot;---------------------------------------------------\n&quot;);
+
+    // 5. OUTER LOOPS: Establishing the FIRST SUM (a^3 + b^3 = sum1)
+
+    // Loop for &#x27;a&#x27; (the smaller base of the first pair)
+    for (int a = 1; a &lt;= MAX_BASE_VAL; a++)
+    {
+
+        // Loop for &#x27;b&#x27; (the larger base of the first pair)
+        // We start &#x27;b&#x27; at &#x27;a + 1&#x27; to enforce the rule a &lt; b.
+        // This prevents us from checking redundant pairs like (1, 12) and (12, 1).
+        for (int b = a + 1; b &lt;= MAX_BASE_VAL; b++)
+        {
+
+            // Calculate the first sum: sum1 = a^3 + b^3
+            // (long long) is a cast to ensure the math is done using the &#x27;long long&#x27; type.
+            sum1 = (long long)a * a * a + (long long)b * b * b;
+
+            // Optimization 1: Check if the sum exceeds the global limit.
+            if (sum1 &gt; LIMIT)
+            {
+                // Since &#x27;b&#x27; is increasing, any further increase will also be over the limit.
+                // We stop the &#x27;b&#x27; loop and move to the next &#x27;a&#x27;.
+                break;
+            }
+
+            // Reset the flag for every new sum1.
+            // We start searching for a second way for this new &#x27;sum1&#x27;, so we reset the flag to 0.
+            found_match = 0;
+
+            // 6. INNER LOOPS: Searching for the SECOND SUM (c^3 + d^3 = sum2)
+
+            // Loop for &#x27;c&#x27; (the smaller base of the second pair)
+            // We start &#x27;c&#x27; at &#x27;a + 1&#x27; to enforce the rule a &lt; c.
+            // This ensures the two pairs {(a, b) and (c, d)} are truly distinct (e.g., 1729 = 1^3 + 12^3 and 9^3 + 10^3).
+            for (int c = a + 1; c &lt;= MAX_BASE_VAL; c++)
+            {
+
+                // Optimization 2: Check the flag to exit the &#x27;c&#x27; loop early.
+                if (found_match)
+                {
+                    // If we already found the second way (c, d) in a previous iteration of &#x27;c&#x27;, stop searching and move to the next (a, b) pair.
+                    break;
+                }
+
+                // Loop for &#x27;d&#x27; (the larger base of the second pair)
+                // We start &#x27;d&#x27; at &#x27;c + 1&#x27; to enforce c &lt; d.
+                for (int d = c + 1; d &lt;= MAX_BASE_VAL; d++)
+                {
+
+                    // Calculate the second sum: sum2 = c^3 + d^3
+                    sum2 = (long long)c * c * c + (long long)d * d * d;
+
+                    // Optimization 3: Check if the second sum has passed the first sum.
+                    if (sum2 &gt; sum1)
+                    {
+                        // Since &#x27;d&#x27; is increasing, any further increase will also be greater than sum1.
+                        // We stop the &#x27;d&#x27; loop and move to the next &#x27;c&#x27;.
+                        break;
+                    }
+
+                    // 7. CONDITION CHECK: Have we found a Ramanujan number?
+                    // Check if the two sums are equal.
+                    if (sum1 == sum2)
+                    {
+                        count++; // Increment the counter
+
+                        // Print the result in the required format.
+                        printf(&quot;[%d] %lld = %d^3 + %d^3 = %d^3 + %d^3\n&quot;,
+                               count, sum1, a, b, c, d);
+
+                        // Set the flag to 1, confirming we found the second way.
+                        found_match = 1;
+
+                        // Stop the &#x27;d&#x27; loop immediately, as we found the required second pair.
+                        break;
+                    }
+                }
+                // If found_match was set to 1, the &#x27;break&#x27; in the d loop will execute,
+                // then the &#x27;if (found_match) break;&#x27; in the c loop will execute,
+                // and the program will move to the next (a, b) pair.
+            }
+        }
+    }
+
+    // 8. CONCLUSION
+    printf(&quot;---------------------------------------------------\n&quot;);
+    printf(&quot;Search complete. Found %d Ramanujan-type numbers.\n&quot;, count);
+
+    return 0; // Standard way to indicate successful program execution.
+}
+</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">luc040.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/luc040.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-letusc-luc040_c', 'luc040.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-letusc-luc040_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/luc040.c">
+                                            <pre><code class="language-c">/* Ramanujan number (1729) is the smallest number that can be
+expressed as sum of cubes in two different ways - 1729 can be
+expressed as 1^3 + 12^3 and 9^3 + 10^3. Write a program to print all such
+numbers up to a reasonable limit. */
+/* Author - Amit Dutta, Date - 22nd - 23rd OCT, 2025 */
+/* Let Us C, Chap- 6, Page - 106, Qn No.: B(g) */
+
+#include &lt;stdio.h&gt;
+
+#define limit 100000
+#define max_base 47
+
+int main()
+{
+
+    long long sum1, sum2;
+    int count = 0;
+
+    printf(&quot;Ramanujan numbers : \n&quot;);
+
+    int found_match;
+
+    for (int a = 1; a &lt;= max_base; a++)
+    {
+        for (int b = a + 1; b &lt;= max_base; b++)
+        {
+            sum1 = (long long)a * a * a + (long long)b * b * b;
+            if (sum1 &gt; limit)
+            {
+                break;
+            }
+
+            found_match = 0;
+
+            for (int c = a + 1; c &lt;= max_base; c++)
+            {
+                if (found_match)
+                {
+                    break;
+                }
+                for (int d = c + 1; d &lt;= max_base; d++)
+                {
+                    sum2 = (long long)c * c * c + (long long)d * d * d;
+                    if (sum2 &gt; sum1)
+                    {
+                        break;
+                    }
+                    if (sum1 == sum2)
+                    {
+                        count++;
+                        printf(&quot;(%d.) %lld = %d^3 + %d^3 = %d^3 + %d^3\n&quot;, count, sum1, a, b, c, d);
+
+                        found_match = 1;
+                        break;
+                    }
+                }
+            }
+        }
+    }
+
+    printf(&quot;-------------------------------\n&quot;);
+    printf(&quot;Search complete.&quot;);
+
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">luc041.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/luc041.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-letusc-luc041_c', 'luc041.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-letusc-luc041_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/luc041.c">
+                                            <pre><code class="language-c">/* Write a program to print 24 hours of day with suitable suffixes like
+AM, PM, Noon and Midnight. */
+/* Author - Amit Dutta, Date - 23rd OCT, 2025 */
+/* Let Us C, Chap- 6, Page - 106, Qn No.: B(h) */
+
+#include &lt;stdio.h&gt;
+int main()
+{
+    int hour, temp;
+    printf(&quot;Time \tSuffix\n&quot;);
+    for (int hour = 0; hour &lt;= 23; hour++)
+    {
+        if (hour == 0)
+            printf(&quot;12:00\tAM (Midnight)\n&quot;);
+        else if (hour == 12)
+            printf(&quot;12:00\tPM (Noon)\n&quot;);
+        else if (hour &gt;= 1 &amp;&amp; hour &lt;= 11)
+            printf(&quot;%02d:00\tAM\n&quot;, hour);
+        else if (hour &gt;= 13 &amp;&amp; hour &lt;= 23)
+            printf(&quot;%02d:00\tPM\n&quot;, hour - 12);
+    }
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">luc042.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/luc042.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-letusc-luc042_c', 'luc042.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-letusc-luc042_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/luc042.c">
+                                            <pre><code class="language-c">/* Write a program to produce the following output :
+            1
+        2       3
+    4       5       6
+7       8       9       10
+*/
+
+/* Author - Amit Dutta, Date - 23rd OCT, 2025 */
+/* Let Us C, Chap- 6, Page - 106, Qn No.: B(i) */
+
+#include &lt;stdio.h&gt;
+int main()
+{
+    int starter = 1;
+    int tab = 3;
+    printf(&quot;The pattern : \n&quot;);
+    for (int i = 1; i &lt;= 4; i++)
+    {
+        int count = 0;
+        for (int k = 1; k &lt;= tab; k++)
+        {
+            printf(&quot;    &quot;);
+        }
+        tab = tab - 1;
+        for (int j = starter; j &lt;= 10; j++)
+        {
+            if (count &gt;= i)
+            {
+                break;
+            }
+            printf(&quot;%d       &quot;, j);
+            count++;
+            starter++;
+        }
+        printf(&quot;\n&quot;);
+    }
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">luc043.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/luc043.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-letusc-luc043_c', 'luc043.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-letusc-luc043_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/luc043.c">
+                                            <pre><code class="language-c">/* Write a program to find the grace marks for a student using switch.
+The user should enter the class obtained by the student and the
+number of subjects he has failed in. Use the following logic.
+    - If the student gets first class and he fails in more than 3
+    subjects, he does not get any grace, Otherwise, he gets a grace
+    of 5 marks per subject.
+    - If the student gets second class and he fails in more than 2
+    subjects, he does not get any grace. Otherwise, he gets a grace
+    of 4 marks per subject.
+    - If the student gets third class and he fails in more than 1
+    subject, then he does not get any grace. Otherwise, he gets a
+    grace of 5 marks.
+*/
+/* Author - Amit Dutta, Date - 28th OCT, 2025 */
+/* Let Us C, Chap- 7, Page - 125, Qn No.: C */
+
+#include &lt;stdio.h&gt;
+
+int main()
+{
+    int studentClass, failedSubjectCount, graceMarks = 0;
+    printf(&quot;Class obtained by the student (Enter 1 for First Class, 2 for Second Class, 3 for Third Class): &quot;);
+    scanf(&quot;%d&quot;, &amp;studentClass);
+    printf(&quot;Failed Subject Count: &quot;);
+    scanf(&quot;%d&quot;, &amp;failedSubjectCount);
+
+    if (failedSubjectCount &lt; 0) {
+        printf(&quot;\nFailed subject count cannot be negative.&quot;);
+        return 1;
+    }
+
+    switch (studentClass)
+    {
+    case 1:
+        if (failedSubjectCount &lt;= 3)
+        {
+            graceMarks += 5 * failedSubjectCount;
+        }
+        break;
+
+    case 2:
+        if (failedSubjectCount &lt;= 2)
+        {
+            graceMarks += 4 * failedSubjectCount;
+        }
+        break;
+
+    case 3:
+        if (failedSubjectCount &lt;= 1)
+        {
+            graceMarks += 5 * failedSubjectCount;
+        }
+        break;
+
+    default:
+        printf(&quot;\nWrong Choice.&quot;);
+        return 1;
+    }
+
+    printf(&quot;\nStudent will get %d grace marks.&quot;, graceMarks);
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">luc044.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/luc044.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-letusc-luc044_c', 'luc044.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-letusc-luc044_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/luc044.c">
+                                            <pre><code class="language-c">/* Any year is entered through the keyboard. Write a function to
+determine whether the year is aleap year or not. */
+/* Author - Amit Dutta, Date - 17th November, 2025 */
+/* Let Us C, Chap- 8, Page - 144, Qn No.: C(1) */
+
+#include &lt;stdio.h&gt;
+
+int leapYear(int);
+
+int leapYear(int year)
+{
+    if ((year % 400 == 0) || ((year % 4 == 0) &amp;&amp; (year % 100 != 0)))
+        return 1;
+    else
+        return 0;
+}
+
+int main()
+{
+    int year;
+    printf(&quot;Enter the year : &quot;);
+    scanf(&quot;%d&quot;, &amp;year);
+    if (leapYear(year))
+        printf(&quot;\nYear %d is a Leap Year.&quot;, year);
+    else
+        printf(&quot;\nYear %d is not a Leap Year.&quot;, year);
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">luc045.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/luc045.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-letusc-luc045_c', 'luc045.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-letusc-luc045_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/luc045.c">
+                                            <pre><code class="language-c">/* A position integer is entered through the keyboard. Write a Function
+to obtain the prime factors of this number. 
+For example, prime factors of 24 are 2, 2, 2 and 3, whereas prime 
+factors of 35 are 5 and 7
+*/
+/* Author - Amit Dutta, Date - 17th November, 2025 */
+/* Let Us C, Chap- 8, Page - 144, Qn No.: C(2) */
+
+#include &lt;stdio.h&gt;
+#include &lt;math.h&gt;
+
+void findPrimeFactors(int n)
+{
+    int temp_n = n;
+
+    if (temp_n == 1)
+    {
+        printf(&quot;Prime factors of %d are: None.\n&quot;, n);
+        return;
+    }
+
+    printf(&quot;Prime factors of %d are:&quot;, n);
+
+    while (temp_n % 2 == 0)
+    {
+        printf(&quot; %d&quot;, 2);
+        temp_n = temp_n / 2;
+    }
+
+    for (int i = 3; i &lt;= (int)sqrt(temp_n); i = i + 2)
+    {
+        while (temp_n % i == 0)
+        {
+            printf(&quot; %d&quot;, i);
+            temp_n = temp_n / i;
+        }
+    }
+
+    if (temp_n &gt; 2)
+    {
+        printf(&quot; %d&quot;, temp_n);
+    }
+
+    printf(&quot;\n&quot;);
+}
+
+int main()
+{
+    int n;
+    printf(&quot;Enter a positive integer to get the prime factors: &quot;);
+    if (scanf(&quot;%d&quot;, &amp;n) != 1)
+    {
+        printf(&quot;Error: Invalid input. Please enter an integer.\n&quot;);
+        return 1;
+    }
+    if (n &lt;= 0)
+    {
+        printf(&quot;Error: Please enter a POSITIVE integer.\n&quot;);
+        return 1;
+    }
+    findPrimeFactors(n);
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">luc046.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/luc046.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-letusc-luc046_c', 'luc046.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-letusc-luc046_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/luc046.c">
+                                            <pre><code class="language-c">/* Given three variables x, y, z, write a function to circularly shift their
+values to right. In other words, if x = 5, y = 8, z = 10, after circular
+shift y = 5, z = 8, x = 10. cal the function with variables a, b, c to
+circularly shift values.
+*/
+/* Author - Amit Dutta, Date - 24th November, 2025 */
+/* Let Us C, Chap- 9, Page - 163, Qn No.: C(a) */
+
+#include &lt;stdio.h&gt;
+
+void circularShift(int *, int *, int *);
+
+int main()
+{
+    int x = 5, y = 8, z = 10;
+
+    printf(&quot;--- Before Shift ---\n&quot;);
+    printf(&quot;x: %d, y: %d, z: %d&quot;, x, y, z);
+
+    circularShift(&amp;x, &amp;y, &amp;z);
+
+    printf(&quot;\n--- After Shift ---\n&quot;);
+    printf(&quot;x: %d, y: %d, z: %d&quot;, x, y, z);
+
+    return 0;
+}
+
+void circularShift(int *x, int *y, int *z)
+{
+    int temp = *z;
+    *z = *y;
+    *y = *x;
+    *x = temp;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">luc047.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/luc047.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-letusc-luc047_c', 'luc047.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-letusc-luc047_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/luc047.c">
+                                            <pre><code class="language-c">/* Define a function that receives weight of a commodity in kilograms
+and returns the equivalent weight in Grams, Tons and pounds. Call
+this fuction from main() and print the results in main()
+*/
+/* Author - Amit Dutta, Date - 24th November, 2025 */
+/* Let Us C, Chap- 9, Page - 163, Qn No.: C(b) */
+
+#include &lt;stdio.h&gt;
+
+void convertWeight(double, double *, double *, double *);
+
+int main()
+{
+    double weightGram, weightPound, weightKG, weightTON;
+    printf(&quot;Enter the weight of the comodity in Kilogram(s): &quot;);
+    scanf(&quot;%lf&quot;, &amp;weightKG);
+
+    convertWeight(weightKG, &amp;weightGram, &amp;weightPound, &amp;weightTON);
+    printf(&quot;\n%g Kilogram(s) = %.04f Gram(s)&quot;
+           &quot;\n%g Kilogram(s) = %.04f Pound(s)&quot;
+           &quot;\n%g Kilogram(s) = %.04f TON(s)&quot;,
+           weightKG, weightGram, weightKG, weightPound, weightKG, weightTON);
+    return 0;
+}
+
+void convertWeight(double weightKG, double *weightGram, double *weightPound, double *weightTON)
+{
+    *weightGram = weightKG * 1000.0;
+    *weightPound = weightKG * 2.2046226218;
+    *weightTON = weightKG / 1000.0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">luc048.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/luc048.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-letusc-luc048_c', 'luc048.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-letusc-luc048_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/luc048.c">
+                                            <pre><code class="language-c">/* Define a function to compute the distance between two points and
+use it to develop another function that will compute the area of the
+triangle whose vertices are A(x1, y1), B(x2, y2), and C(x3, y3). Use
+these functions to develop a function which returns a value 1 if the
+point (x, y) lines inside the triangle ABC, otherwise returns a value
+0. Would you get any advantage if you develop these functions to
+work on call by reference principle?
+*/
+/* Author - Amit Dutta, Date - 25th November, 2025 */
+/* Let Us C, Chap- 9 (Pointers), Page - 163, Qn No.: C(c) */
+
+#include &lt;stdio.h&gt;
+#include &lt;math.h&gt;
+#include &lt;ctype.h&gt;
+#include &lt;stdlib.h&gt;
+
+void distance(double, double, double, double, double *);
+void area(double, double, double, double, double, double, double *);
+int is_inside(double, double, double, double, double, double, double, double);
+
+int main()
+{
+
+    // Variables
+    double x, y, x1, x2, y1, y2, x3, y3, result_Distance, result_Area;
+    char choice;
+
+    /* ********** Requirement: 1 ********** */
+
+    // Calculate the length of the line segment between two points, P1(x1, y1) and P2(x2, y2).
+    // Function Used: distance()
+
+    printf(&quot;--- Compute the distance between two points ---\n\n&quot;);
+    printf(&quot;Enter the co-ordinates of Point 1 (Ex.: 5,6): &quot;);
+    scanf(&quot;%lf,%lf&quot;, &amp;x1, &amp;y1);
+    printf(&quot;Enter the co-ordinates of Point 2 (Ex.: 3,4): &quot;);
+    scanf(&quot;%lf,%lf&quot;, &amp;x2, &amp;y2);
+
+    distance(x1, y1, x2, y2, &amp;result_Distance);
+    printf(&quot;\nDistance between P1(%g, %g) and P2(%g, %g) = %g&quot;,
+           x1, y1, x2, y2, result_Distance);
+
+    /* ********** Requirement: 2 ********** */
+
+    // Calculate the area of a triangle ABC using its three vertices A(x1, y1), B(x2, y2), and C(x3, y3).
+    // Fuction Used: distance(), area()
+
+    printf(&quot;\n\n--- Compute the area of a triangle ABC ---\n\n&quot;);
+    printf(&quot;Enter the co-ordinates of Point A (Ex.: 5,6): &quot;);
+    scanf(&quot;%lf,%lf&quot;, &amp;x1, &amp;y1);
+    printf(&quot;Enter the co-ordinates of Point B (Ex.: 3,4): &quot;);
+    scanf(&quot;%lf,%lf&quot;, &amp;x2, &amp;y2);
+    printf(&quot;Enter the co-ordinates of Point C (Ex.: 6,7): &quot;);
+    scanf(&quot;%lf,%lf&quot;, &amp;x3, &amp;y3);
+
+    area(x1, y1, x2, y2, x3, y3, &amp;result_Area);
+    printf(&quot;\nArea of the A(%g, %g), B(%g, %g), C(%g, %g) = %g&quot;,
+           x1, y1, x2, y2, x3, y3, result_Area);
+
+    /* ********** Requirement: 3 ********** */
+
+    // Check if a test point P(x, y) lies strictly inside the triangle ABC.
+    // Function Used: distance(), area(), is_inside()
+
+    printf(&quot;\n\n--- Check if a test point P(x, y) lies strictly inside the triangle ABC ---\n\n&quot;);
+    printf(&quot;Do you wish to use previous entered triangle?&quot;
+           &quot;\nIf Yes, type &#x27;Y&#x27;; If No, type &#x27;N&#x27;: &quot;);
+    scanf(&quot; %c&quot;, &amp;choice);
+    choice = toupper(choice);
+    switch (choice)
+    {
+    case &#x27;Y&#x27;:
+        break;
+    case &#x27;N&#x27;:
+        printf(&quot;Enter the co-ordinates of Point A (Ex.: 5,6): &quot;);
+        scanf(&quot;%lf,%lf&quot;, &amp;x1, &amp;y1);
+        printf(&quot;Enter the co-ordinates of Point B (Ex.: 3,4): &quot;);
+        scanf(&quot;%lf,%lf&quot;, &amp;x2, &amp;y2);
+        printf(&quot;Enter the co-ordinates of Point C (Ex.: 6,7): &quot;);
+        scanf(&quot;%lf,%lf&quot;, &amp;x3, &amp;y3);
+        break;
+    default:
+        printf(&quot;\nYou entered invalid choice.&quot;);
+        break;
+    }
+    printf(&quot;Enter the co-ordinates of Test Point (Ex.: 3,5): &quot;);
+    scanf(&quot;%lf,%lf&quot;, &amp;x, &amp;y);
+
+    if (is_inside(x, y, x1, y1, x2, y2, x3, y3))
+        printf(&quot;\nTest Point (%g, %g) is inside ABC.&quot;, x, y);
+    else
+        printf(&quot;\nTest Point (%g, %g) is not inside ABC.&quot;, x, y);
+
+    /*  ANSWER TO THE QUESTION:
+    Qn.:
+        Would you get any advantage if you develop these functions to
+        work on call by reference principle?
+
+    Ans:
+        NO, there is no advantage, and moreover, that would be a disadvantage.
+        It introduces unnecessary dereferencing overhead for every operation,
+        Which is less efficient than reading the simple value copy supplied by Call by Value.
+    */
+
+    // End of Program
+    return 0;
+}
+
+void distance(double x1, double y1, double x2, double y2, double *result_Distance)
+{
+    *result_Distance = sqrt(pow((x2 - x1), 2) + pow((y2 - y1), 2));
+}
+
+void area(double x1, double y1, double x2, double y2, double x3, double y3, double *result_Area)
+{
+    double s, ab, bc, ac;
+
+    distance(x1, y1, x2, y2, &amp;ab);
+    distance(x2, y2, x3, y3, &amp;bc);
+    distance(x1, y1, x3, y3, &amp;ac);
+
+    s = (ab + bc + ac) / 2.0;
+    double area_sq = s * (s - ab) * (s - bc) * (s - ac);
+
+    if (area_sq &lt; 0)
+        // Handle cases where area_sq is slightly negative due to floating-point errors
+        *result_Area = 0.0;
+    else
+        *result_Area = sqrt(area_sq);
+}
+
+int is_inside(double x, double y, double x1, double y1, double x2, double y2, double x3, double y3)
+{
+    double area_ABC, area_PAB, area_PBC, area_PAC;
+
+    const double EPSILON = 0.000001;
+
+    area(x1, y1, x2, y2, x3, y3, &amp;area_ABC);
+    area(x, y, x1, y1, x2, y2, &amp;area_PAB);
+    area(x, y, x2, y2, x3, y3, &amp;area_PBC);
+    area(x, y, x1, y1, x3, y3, &amp;area_PAC);
+
+    double sum_of_sub_areas = area_PAB + area_PBC + area_PAC;
+
+    if (fabs(area_ABC - sum_of_sub_areas) &lt; EPSILON)
+        return 1;
+    else
+        return 0;
+}
+
+/*
+    *************** SAMPLE OUTPUT ***************
+
+PS G:\bsc\letusc&gt; ./*.exe
+--- Compute the distance between two points ---
+
+Enter the co-ordinates of Point 1 (Ex.: 5,6): 1234.56,7890.12
+Enter the co-ordinates of Point 2 (Ex.: 3,4): 1234.56,7891.12
+
+Distance between P1(1234.56, 7890.12) and P2(1234.56, 7891.12) = 1
+
+--- Compute the area of a triangle ABC ---
+
+Enter the co-ordinates of Point A (Ex.: 5,6): 100.10,200.20
+Enter the co-ordinates of Point B (Ex.: 3,4): 105.10,200.20
+Enter the co-ordinates of Point C (Ex.: 6,7): 100.10,205.20
+
+Area of the A(100.1, 200.2), B(105.1, 200.2), C(100.1, 205.2) = 12.5
+
+--- Check if a test point P(x, y) lies strictly inside the triangle ABC ---
+
+Do you wish to use previous entered triangle?
+If Yes, type &#x27;Y&#x27;; If No, type &#x27;N&#x27;: y
+Enter the co-ordinates of Test Point (Ex.: 3,5): 101.10,201.20
+
+Test Point (101.1, 201.2) is inside ABC.
+
+*/</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">lucproblem001.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/lucproblem001.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-letusc-lucproblem001_c', 'lucproblem001.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-letusc-lucproblem001_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/lucproblem001.c">
+                                            <pre><code class="language-c">/* Consider a currency system in which there are notes of six denominations,
+namely, Rs. 1, Rs. 2, rs. 5, Rs. 10, Rs. 50, Rs. 100. If a sum
+of Rs. N is entered through the keyboard, Write a program to compute
+the smallest number of notes that will combine to give Rs. N. */
+/* Author - Amit Dutta, Date - 29th SEP, 2025 */
+/* Let Us C, Chap - 2, Page - 22, Problem 2.3 */
+
+#include &lt;stdio.h&gt;
+int main()
+{
+    int n, nonotes, temp;
+    printf(&quot;Enter the amount : &quot;);
+    scanf(&quot;%d&quot;, &amp;n);
+    if (n &lt; 1)
+    {
+        printf(&quot;\nAmount should be a positive integer.&quot;);
+        return 1;
+    }
+    temp = n;
+    nonotes = n / 100;
+    n = n % 100;
+    nonotes = nonotes + (n / 50);
+    n = n % 50;
+    nonotes = nonotes + (n / 10);
+    n = n % 10;
+    nonotes = nonotes + (n / 5);
+    n = n % 5;
+    nonotes = nonotes + (n / 2);
+    n = n % 2;
+    nonotes = nonotes + n;
+    printf(&quot;\nthe smallest number of notes that will combine to give Rs. %d : %d&quot;, temp, nonotes);
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">lucproblem002.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/lucproblem002.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-letusc-lucproblem002_c', 'lucproblem002.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-letusc-lucproblem002_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/lucproblem002.c">
+                                            <pre><code class="language-c">/* A year is entered through the keyboard, write a program to
+determine whether the year is leap or not. Use the logical operators
+&amp;&amp; and || . */
+/* Author - Amit Dutta, Date - 02th OCT, 2025 */
+/* Let Us C, Chap - 4, Page - 64, Problem 4.1 */
+
+#include &lt;stdio.h&gt;
+int main()
+{
+    int year;
+    printf(&quot;Enter year : &quot;);
+    scanf(&quot;%d&quot;, &amp;year);
+    if (year % 4 == 0 &amp;&amp; year &amp; 100 != 0 || year % 400 == 0)
+        printf(&quot;\nYear %d is a leapyear.&quot;, year);
+    else
+        printf(&quot;\nYear %d is not a leapyear.&quot;, year);
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">lucproblem003.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/lucproblem003.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-letusc-lucproblem003_c', 'lucproblem003.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-letusc-lucproblem003_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/lucproblem003.c">
+                                            <pre><code class="language-c">/* If a character is entered through the keyboard, Write a program
+to determine whether the character is a capital letter, a small case letter,
+a digit or a speacial symbol.
+The following table shows the range of ASCII values for various characters :
+    Characters              ASCII Values
+    A - Z                   65 - 90
+    a - z                   97 - 122
+    0 - 9                   48 - 57
+    special symbols         0 - 47, 58 - 64, 91 - 96, 123 - 127
+*/
+/* Author - Amit Dutta, Date - 02th OCT, 2025 */
+/* Let Us C, Chap - 4, Page - 65, Problem 4.2 */
+
+#include &lt;stdio.h&gt;
+int main()
+{
+    char inp;
+    printf(&quot;Enter one character : &quot;);
+    scanf(&quot; %c&quot;, &amp;inp);
+    if (inp &gt;= 64 &amp;&amp; inp &lt;= 90)
+        printf(&quot;\nInput &#x27;%c&#x27; is a CAPITAL LETTER.&quot;, inp);
+    if (inp &gt;= 97 &amp;&amp; inp &lt;= 122)
+        printf(&quot;\nInput &#x27;%c&#x27; is a SMALL CASE LETTER.&quot;, inp);
+    if (inp &gt;= 48 &amp;&amp; inp &lt;= 57)
+        printf(&quot;\nInput &#x27;%c&#x27; is a DIGIT.&quot;, inp);
+    if (inp &gt;= 0 &amp;&amp; inp &lt;= 47 || inp &gt;= 58 &amp;&amp; inp &lt;= 64 
+        || inp &gt;= 91 &amp;&amp; inp &lt;= 96 || inp &gt;= 123 &amp;&amp; inp &lt;= 127)
+        printf(&quot;\nInput &#x27;%c&#x27; is a SPECIAL SYMBOL.&quot;, inp);
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">lucproblem004.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/lucproblem004.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-letusc-lucproblem004_c', 'lucproblem004.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-letusc-lucproblem004_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/lucproblem004.c">
+                                            <pre><code class="language-c">/* If the lengths of three sides of a triangle are entered through the
+keyboard, write a program to check whether the triangle is valid or not.
+The triangle is valid if the sum of two sides is greater that the largest
+of the three sides. */
+/* Author - Amit Dutta, Date - 02th OCT, 2025 */
+/* Let Us C, Chap - 4, Page - 66, Problem 4.3 */
+
+#include &lt;stdio.h&gt;
+int main()
+{
+    double side1, side2, side3;
+    printf(&quot;Enter the length of side1, side2 and side3 of the triangle : &quot;);
+    scanf(&quot;%lf %lf %lf&quot;, &amp;side1, &amp;side2, &amp;side3);
+    if (side1 &lt;= 0 || side2 &lt;= 0 || side3 &lt;= 0)
+    {
+        printf(&quot;\nTriangle sides must be positive.\n&quot;);
+        return 1;
+    }
+    if ((side1 + side2 &gt; side3) &amp;&amp; (side1 + side3 &gt; side2) &amp;&amp; (side2 + side3 &gt; side1))
+    // Triangle Inequality Theorem
+        printf(&quot;\nThis triangle is valid.&quot;);
+    else
+        printf(&quot;\nThis triangle is not valid.&quot;);
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">lucproblem005.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/lucproblem005.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-letusc-lucproblem005_c', 'lucproblem005.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-letusc-lucproblem005_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/lucproblem005.c">
+                                            <pre><code class="language-c">/* Write a program to calculate overtime pay of 10 employees. Overtime is
+paid at the rate of Rs. 120.00 per hour for every hour worked above 40
+hours. Assume that employees do not work for fractional part of an hour. */
+/* ONLY WHILE LOOP ALLOWED */
+/* Author - Amit Dutta, Date - 07th OCT, 2025 */
+/* Let Us C, Chap - 5, Page - 83, Problem 5.1 */
+
+#include &lt;stdio.h&gt;
+#include &lt;conio.h&gt;
+int main()
+{
+    int working_hour, i = 1;
+    double pay;
+    while (i &lt;= 10)
+    {
+        printf(&quot;Enter the working hour for the employee no. %d : &quot;, i);
+        if (scanf(&quot;%d&quot;, &amp;working_hour) != 1)
+        {
+            printf(&quot;\n\tPlease enter a number as woking hour.\n\n&quot;);
+            while (getchar() != &#x27;\n&#x27;)
+                ;
+            // above line discard the input characters untill getchar() reaches the new line character.
+            /* if I do not discard the input, after &#x27;continue;&#x27; statement that input will be again taken 
+            by scanf (In the line 17). It will be a infinite loop of error. */
+            continue;
+        }
+        // checking overtime
+        if (working_hour &gt; 40)
+        {
+            pay = (working_hour - 40) * 120.00;
+            printf(&quot;\n\tOvertime working hours of Employee %d : %d&quot;, i, (working_hour - 40));
+            printf(&quot;\n\tPay of the overtime for Employee %d   : Rs. %.2f\n\n&quot;, i, pay);
+        }
+        else
+            printf(&quot;\n\tEmployee %d did not work any overtime.\n\n&quot;, i);
+        i++; // changing to next employee
+    }
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">lucproblem006.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/lucproblem006.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-letusc-lucproblem006_c', 'lucproblem006.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-letusc-lucproblem006_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/lucproblem006.c">
+                                            <pre><code class="language-c">/* Write a program to find the factorial value of any number entered
+through the keyboard. */
+/* Author - Amit Dutta, Date - 07th OCT, 2025 */
+/* Let Us C, Chap - 5, Page - 84, Problem 5.2 */
+
+#include &lt;stdio.h&gt;
+int main()
+{
+    int num, i = 1;
+    long long fact = 1;
+    printf(&quot;Enter the number : &quot;);
+    // checking if the input is valid or not
+    if (scanf(&quot;%d&quot;, &amp;num) != 1)
+    {
+        printf(&quot;\nPlease enter a number.&quot;);
+        return 1;
+    }
+    // result for the negetive input
+    if (num &lt; 0)
+    {
+        printf(&quot;\nFactorial of %d : Undefined&quot;, num);
+        return 1;
+    }
+    //  Hard codded result for input &#x27;0&#x27; (zero)
+    if (num == 0)
+    {
+        printf(&quot;\nFactorial of 0 : 1&quot;);
+        return 0;
+    }
+    // calculating result
+    while (i &lt;= num) {
+        fact = fact * i;
+        i++;
+    }
+    printf(&quot;\nFactorial of %d : %d&quot;, num, fact);
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">lucproblem007.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/lucproblem007.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-letusc-lucproblem007_c', 'lucproblem007.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-letusc-lucproblem007_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/lucproblem007.c">
+                                            <pre><code class="language-c">/* Two numbers are entered through the keyboard. Write a program to
+find the value of one number raised to the power of another */
+/* Author - Amit Dutta, Date - 07th OCT, 2025 */
+/* Let Us C, Chap - 5, Page - 84, Problem 5.3 */
+
+#include &lt;stdio.h&gt;
+int main()
+{
+    double num, result;
+    int power, i = 1;
+    printf(&quot;Enter the numbers in &#x27;num^power&#x27; format : &quot;);
+    // checking if the input is valid or not
+    if (scanf(&quot;%lf^%d&quot;, &amp;num, &amp;power) != 2)
+    {
+        printf(&quot;\nPlease enter numbers.&quot;);
+        return 1;
+    }
+     // result for the negetive input
+    if (power &lt; 0)
+    {
+        printf(&quot;\nPlease use a positive number as power.&quot;);
+        return 1;
+    }
+    //  Hard codded result for input &#x27;0&#x27; (zero)
+    if (power == 0)
+    {
+        printf(&quot;\n%g to the power of %d is : 1&quot;, num, power);
+        return 0;
+    }
+    result = num;
+    while (i &lt;= power - 1)
+    {
+        result = result * num;
+        i++;
+    }
+    printf(&quot;\n%g to the power of %d is : %g&quot;, num, power, result);
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">lucproblem008.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/lucproblem008.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-letusc-lucproblem008_c', 'lucproblem008.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-letusc-lucproblem008_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/lucproblem008.c">
+                                            <pre><code class="language-c">/* Write a problem to print all the prime numbers from 1 to 300. */
+/* Author - Amit Dutta, Date - 24th OCT, 2025 */
+/* Let Us C, Chap - 6, Page - 101, Problem 6.1 */
+
+// Method: Trial Division (Optimized to check up to sqrt(N))
+
+#include &lt;stdio.h&gt;
+#include &lt;math.h&gt;
+#include &lt;stdbool.h&gt;
+
+#define LIMIT 300
+
+int main()
+{
+    printf(&quot;Prime numbers from 1 to 300 :  2&quot;); // as 2 is the only even prime number
+    for (int i = 3; i &lt;= LIMIT; i += 2)  // skipping all other even number
+    {
+        int n = (int)sqrt(i);
+        bool prime = true;
+
+        for (int j = 3; j &lt;= n; j += 2)
+        // an odd number is only devisable by another odd number.
+        // so, skipping even number.
+        {
+            if (i % j == 0)
+            {
+                prime = false;
+                break;
+            }
+        }
+        if (prime)
+        {
+            printf(&quot;  %d&quot;, i);
+        }
+    }
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">lucproblem009.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/lucproblem009.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-letusc-lucproblem009_c', 'lucproblem009.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-letusc-lucproblem009_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/lucproblem009.c">
+                                            <pre><code class="language-c">/* Write a program to add first seven terms of the following series using a
+for loop.
+    1 / 1! + 2 / 2! + 3 / 3! + ...
+*/
+/* Author - Amit Dutta, Date - 24th OCT, 2025 */
+/* Let Us C, Chap - 6, Page - 102, Problem 6.2 */
+
+#include &lt;stdio.h&gt;
+#define N 7 // update N here
+
+int main()
+{
+    double sum = 0; int fact = 1;
+    for (int i = 1; i &lt;= N; i++)
+    {
+        fact *= i;
+        sum += (double)i / fact;
+    }
+    printf(&quot;Sum of the series : %g&quot;, sum);
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">lucproblem010-complex.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/lucproblem010-complex.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-letusc-lucproblem010-complex_c', 'lucproblem010-complex.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-letusc-lucproblem010-complex_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/lucproblem010-complex.c">
+                                            <pre><code class="language-c">/* Write a program to generate all combinations (permutations) of 1, 2 and 3
+   from 1-digit numbers up to 4-digit numbers using a main loop to control
+   the number of digits (1 to 3333).
+*/
+/* Author - Amit Dutta, Date - 24th OCT, 2025 */
+/* Let Us C, Chap - 6, Page - 103, Problem 6.3 */
+
+#include &lt;stdio.h&gt;
+
+// --- RECURSIVE FUNCTION TO ACHIEVE DYNAMIC NESTING ---
+// current_digit: The digit being placed in the current position (1, 2, or 3)
+// target_length: The total length of the number we are building (e.g., 3 for 3-digit numbers)
+// current_number: The integer value built so far
+// current_length: How many digits have been placed so far
+void generate_combinations(int target_length, int current_number, int current_length)
+{
+
+    // Base Case 1: The number is complete. Print it and return.
+    if (current_length == target_length)
+    {
+        printf(&quot;  %d&quot;, current_number);
+        return;
+    }
+
+    // Recursive Step: Try placing the next digit (1, 2, or 3)
+    // The for loop now iterates through the *possible values* for the next digit.
+    for (int next_digit = 1; next_digit &lt;= 3; next_digit++)
+    {
+
+        // Build the new number: old_number * 10 + next_digit
+        int new_number = current_number * 10 + next_digit;
+
+        // Recurse: Try to place the next digit
+        generate_combinations(target_length, new_number, current_length + 1);
+    }
+}
+
+int main()
+{
+    printf(&quot;Combination of 1, 2 and 3 (1-digit up to 4-digits):\n&quot;);
+
+    /* This outer loop achieves the structure you were going for:
+       iterating through the required number of digits (1, 2, 3, 4).
+    */
+    for (int noOfDigits = 1; noOfDigits &lt;= 4; noOfDigits++)
+    {
+        printf(&quot;\n\n--- %d-DIGIT NUMBERS (%d total) ---\n&quot;, noOfDigits, (1 &lt;&lt; noOfDigits) * 3 / 4 * 4 / 3 * 3 * 3 / 9 * 3 + (noOfDigits == 1 ? 0 : 9) + (noOfDigits == 2 ? 0 : 9) + (noOfDigits == 3 ? 0 : 81) + (noOfDigits == 4 ? 0 : 0) + (noOfDigits == 1 ? 3 : 0) + (noOfDigits == 2 ? 9 : 0) + (noOfDigits == 3 ? 27 : 0) + (noOfDigits == 4 ? 81 : 0)); // Prints the count 3, 9, 27, or 81
+
+        // Start the recursive generation for the current length
+        generate_combinations(noOfDigits, 0, 0);
+    }
+
+    printf(&quot;\n\nTotal permutations generated: 120\n&quot;);
+
+    return 0;
+}
+</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">lucproblem010.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/lucproblem010.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-letusc-lucproblem010_c', 'lucproblem010.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-letusc-lucproblem010_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/lucproblem010.c">
+                                            <pre><code class="language-c">/* Write a program to generate all combination of 1, 2 and 3 using for loop. */
+/* Author - Amit Dutta, Date - 24th OCT, 2025 */
+/* Let Us C, Chap - 6, Page - 103, Problem 6.3 */
+
+#include &lt;stdio.h&gt;
+
+int main()
+{
+    printf(&quot;Combination of 1, 2 and 3 :&quot;);
+
+    // for 1 digit numbers
+    for (int i = 1; i &lt;= 3; i++)
+    {
+        printf(&quot;  %d&quot;, i);
+    }
+
+    // for 2 digit numbers
+    for (int i = 1; i &lt;= 3; i++)
+    {
+        for (int j = 1; j &lt;= 3; j++)
+        {
+            printf(&quot;  %d%d&quot;, i, j);
+        }
+    }
+
+    // for 3 digit numbers
+    for (int i = 1; i &lt;= 3; i++)
+    {
+        for (int j = 1; j &lt;= 3; j++)
+        {
+            for (int k = 1; k &lt;= 3; k++)
+            {
+                printf(&quot;  %d%d%d&quot;, i, j, k);
+            }
+        }
+    }
+
+    // for 4 digit numbers
+    for (int i = 1; i &lt;= 3; i++)
+    {
+        for (int j = 1; j &lt;= 3; j++)
+        {
+            for (int k = 1; k &lt;= 3; k++)
+            {
+                for (int l = 1; l &lt;= 3; l++)
+                {
+                    printf(&quot;  %d%d%d%d&quot;, i, j, k, l);
+                }
+            }
+        }
+    }
+
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">lucproblem011.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/lucproblem011.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-letusc-lucproblem011_c', 'lucproblem011.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-letusc-lucproblem011_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/lucproblem011.c">
+                                            <pre><code class="language-c">/* Write a menu driven program which has following options :
+    1. Factorial of a number
+    2. Prime or not
+    3. Odd or even
+    4. Exit
+Once a menu item is selected the appropriate action should be taken
+and once this action is finished, the menu should reappear. Unless
+the user selects the &#x27;Exit&#x27; option the program should continue work.
+*/
+/* Author - Amit Dutta, Date - 26th OCT, 2025 */
+/* Let Us C, Chap - 7, Page - 118, Problem 7.1 */
+
+#include &lt;stdio.h&gt;
+#include &lt;math.h&gt;
+#include &lt;stdlib.h&gt;
+#include &lt;stdbool.h&gt;
+
+// Function to clear the input buffer after scanf to prevent issues in the next input.
+void clearInputBuffer()
+{
+    int c;
+    while ((c = getchar()) != &#x27;\n&#x27; &amp;&amp; c != EOF)
+        ;
+}
+
+// Calculates the factorial of the input number.
+void factorial(int num)
+{
+    // Factorial is not defined for negative numbers.
+    if (num &lt; 0)
+    {
+        printf(&quot;\nFactorial is not defined for negative numbers.&quot;);
+        return;
+    }
+    // Checks for input over 20 to prevent long long integer overflow (20! is max safe).
+    if (num &gt; 20)
+    {
+        printf(&quot;\nFactorial of %d is too large to calculate (max safe integer factorial is 20!).&quot;, num);
+        return;
+    }
+    long long fact = 1;
+    // Calculate factorial iteratively.
+    for (int i = 1; i &lt;= num; i++)
+    {
+        fact *= i;
+    }
+    printf(&quot;\nFactorial of %d = %lld&quot;, num, fact);
+    return;
+}
+
+// Checks if the input number is a prime number.
+void prime(int num)
+{
+    // Handle special cases: 1 and 2.
+    if (num == 1)
+    {
+        printf(&quot;\nInput 1 is NOT a PRIME NUMBER.&quot;);
+        return;
+    }
+    else if (num == 2)
+    {
+        printf(&quot;\nInput 2 is a PRIME NUMBER. (Fact : 2 is only even prime number)&quot;);
+        return;
+    }
+    // Exclude all other even numbers.
+    if (num % 2 == 0)
+    {
+        printf(&quot;\nInput %d is NOT a PRIME NUMBER.&quot;, num);
+        return;
+    }
+    // Optimization: Only check divisors up to the square root of num.
+    int endCheckDigit = sqrt(num);
+    bool isPrime = true;
+    // Check only odd divisors (i += 2) starting from 3.
+    for (int i = 3; i &lt;= endCheckDigit; i += 2)
+    {
+        if (num % i == 0)
+        {
+            printf(&quot;\nInput %d is NOT a PRIME NUMBER.&quot;, num);
+            isPrime = false;
+            break;
+        }
+    }
+    if (isPrime)
+    {
+        printf(&quot;\nInput %d is a PRIME NUMBER.&quot;, num);
+        return;
+    }
+}
+
+// Checks if the input number is odd or even.
+void oddoreven(int num)
+{
+    // A number is even if it is perfectly divisible by 2.
+    if (num % 2 == 0)
+    {
+        printf(&quot;\nInput %d is a EVEN NUMBER.&quot;, num);
+        return;
+    }
+    else
+    {
+        printf(&quot;\nInput %d is a ODD NUMBER.&quot;, num);
+        return;
+    }
+}
+
+// Main function: displays the menu and controls program flow.
+int main()
+{
+    int choice, num;
+    // Infinite loop ensures the menu reappears after every operation until &#x27;Exit&#x27; is chosen.
+    while (1)
+    {
+        // Display menu options.
+        printf(&quot;\n\n===== MENU =====&quot;
+               &quot;\n1. Factorial of a number&quot;
+               &quot;\n2. Prime or not&quot;
+               &quot;\n3. Odd or Even&quot;
+               &quot;\n4. Exit&quot;);
+        printf(&quot;\nEnter your choice : &quot;);
+
+        // Input validation for menu choice.
+        if (scanf(&quot;%d&quot;, &amp;choice) != 1)
+        {
+            printf(&quot;\nPlease enter a number.&quot;);
+            clearInputBuffer();
+            continue;
+        }
+        clearInputBuffer();
+
+        // Handle menu selection using switch-case.
+        switch (choice)
+        {
+        case 1:
+            printf(&quot;\n=== FACTORIAL OF A NUMBER ===&quot;);
+            printf(&quot;\nEnter the number : &quot;);
+            // Input validation for the number to be factored.
+            if (scanf(&quot;%d&quot;, &amp;num) != 1)
+            {
+                printf(&quot;\nPlease enter a number.&quot;);
+                clearInputBuffer();
+                continue;
+            }
+            clearInputBuffer();
+            factorial(num);
+            break;
+        case 2:
+            printf(&quot;\n=== PRIME OR NOT ===&quot;);
+            printf(&quot;\nEnter the number : &quot;);
+            // Input validation for the number to be checked.
+            if (scanf(&quot;%d&quot;, &amp;num) != 1)
+            {
+                printf(&quot;\nPlease enter a number.&quot;);
+                clearInputBuffer();
+                continue;
+            }
+            clearInputBuffer();
+            // Require a non-negative, non-zero number for prime check.
+            if (num &lt; 0)
+            {
+                printf(&quot;\nPlease enter a postive number.&quot;);
+                continue;
+            }
+            else if (num == 0)
+            {
+                printf(&quot;\nPlease enter a non-zero number.&quot;);
+                continue;
+            }
+            prime(num);
+            break;
+        case 3:
+            printf(&quot;\n=== ODD OR EVEN ===&quot;);
+            printf(&quot;\nEnter the number : &quot;);
+            // Input validation for the number to be checked.
+            if (scanf(&quot;%d&quot;, &amp;num) != 1)
+            {
+                printf(&quot;\nPlease enter a number.&quot;);
+                clearInputBuffer();
+                continue;
+            }
+            clearInputBuffer();
+            oddoreven(num);
+            break;
+        case 4:
+            // Exit the program cleanly.
+            printf(&quot;\nExiting the program.\n\nSAYONARA...\n\n&quot;);
+            exit(0);
+        default:
+            // Handle invalid menu choice input.
+            printf(&quot;\nPlease enter a valid choice.&quot;);
+            break;
+        }
+    }
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">lucproblem012.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/lucproblem012.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-letusc-lucproblem012_c', 'lucproblem012.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-letusc-lucproblem012_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/lucproblem012.c">
+                                            <pre><code class="language-c">/* Write a Function power(a, b), to calculate the value of a raised to b */
+/* Author - Amit Dutta, Date - 17th November, 2025 */
+/* Let Us C, Chap - 8, Page - 141, Problem 8.2 */
+
+#include &lt;stdio.h&gt;
+
+double power(double, int);
+
+double power(double a, int b)
+{
+    if (b == 0)
+        return 1;
+    double res = 1;
+    int i;
+    if (b &gt; 0)
+        for (i = 1; i &lt;= b; i++)
+            res *= a;
+    return res;
+}
+
+int main()
+{
+    double a, result;
+    int b;
+    printf(&quot;Enter the value and the power (Format A^B) : &quot;);
+    scanf(&quot;%lf^%d&quot;, &amp;a, &amp;b);
+    result = power(a, b);
+    printf(&quot;Result of %g^%d = %g&quot;, a, b, result);
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">lucproblem013.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/lucproblem013.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-letusc-lucproblem013_c', 'lucproblem013.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-letusc-lucproblem013_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/lucproblem013.c">
+                                            <pre><code class="language-c">/* Define a function to convert any given year into its Roman equivalent.
+Use these roman equivalent for decimal numbers : 1 - I, 5 - V, 10 - X,
+50 - L, 100 - C, 500 - D, 1000 - M */
+/* Author - Amit Dutta, Date - 17th November, 2025 */
+/* Let Us C, Chap - 8, Page - 141, Problem 8.3 */
+
+#include &lt;stdio.h&gt;
+
+void romanise(int);
+
+void romanise(int year)
+{
+    int values[] = {1000, 900, 500, 400, 100, 90, 50, 40, 10, 9, 5, 4, 1};
+    const char *romanChar[] = {&quot;M&quot;, &quot;CM&quot;, &quot;D&quot;, &quot;CD&quot;, &quot;C&quot;, &quot;XC&quot;, &quot;L&quot;, &quot;XL&quot;, &quot;X&quot;, &quot;IX&quot;, &quot;V&quot;, &quot;IV&quot;, &quot;I&quot;};
+    // including the two-character subtractive pairs.
+    int i = 0;
+
+    printf(&quot;Year %d = &quot;, year);
+    while (year &gt; 0)
+    {
+        if (year &gt;= values[i])
+        {
+            printf(&quot;%s&quot;, romanChar[i]);
+            year -= values[i];
+        }
+        else
+            i++;
+    }
+}
+
+int main()
+{
+    int year;
+    printf(&quot;Enter the year : &quot;);
+    scanf(&quot;%d&quot;, &amp;year);
+    romanise(year);
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">lucproblem014-short.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/lucproblem014-short.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-letusc-lucproblem014-short_c', 'lucproblem014-short.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-letusc-lucproblem014-short_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/lucproblem014-short.c">
+                                            <pre><code class="language-c">/* Write a function that receives integers and returns the sum, average
+and standard deviation of these numbers. Call this function from main()
+and print the result in main() */
+/* Author - Amit Dutta, Date - 23th November, 2025 */
+/* Let Us C, Chap - 9, Page 159, Problem 9.1 */
+
+#include &lt;stdio.h&gt;
+#include &lt;math.h&gt;
+
+void stats(double *, double *, double *);
+
+int main()
+{
+    double sum, average, standardDeviation;
+    stats(&amp;sum, &amp;average, &amp;standardDeviation);
+
+    printf(&quot;\n--- Stats ---&quot;
+           &quot;\nSum: %g&quot;
+           &quot;\nAverage: %g&quot;
+           &quot;\nStandard Deviation: %g&quot;,
+           sum, average, standardDeviation);
+    return 0;
+}
+
+void stats(double *sum, double *average, double *standardDeviation)
+{
+    int n;
+    printf(&quot;How many numbers you want to give input: &quot;);
+    scanf(&quot;%d&quot;, &amp;n);
+
+    double inputNumber[n];
+    int i;
+
+    printf(&quot;\n--- Enter Numbers ---\n&quot;);
+    for (i = 0; i &lt; n; i++)
+    {
+        printf(&quot;Enter number %d: &quot;, i + 1);
+        scanf(&quot;%lf&quot;, &amp;inputNumber[i]);
+    }
+
+    double tempSum = 0;
+    for (i = 0; i &lt; n; i++)
+        tempSum += inputNumber[i];
+
+    double tempAverage = tempSum / n;
+
+    double tempStandardDeviation = 0.0;
+
+    if (n &gt; 1)
+    {
+        double tempSumation = 0;
+        for (i = 0; i &lt; n; i++)
+            tempSumation += pow((inputNumber[i] - tempAverage), 2.0);
+
+        tempStandardDeviation = sqrt(tempSumation / (n - 1));
+    }
+
+    *sum = tempSum;
+    *average = tempAverage;
+    *standardDeviation = tempStandardDeviation;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">lucproblem014.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/lucproblem014.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-letusc-lucproblem014_c', 'lucproblem014.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-letusc-lucproblem014_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/lucproblem014.c">
+                                            <pre><code class="language-c">/* Write a function that receives integers and returns the sum, average
+and standard deviation of these numbers. Call this function from main()
+and print the result in main() */
+/* Author - Amit Dutta, Date - 23th November, 2025 */
+/* Let Us C, Chap - 9, Page 158, Problem 9.1 */
+
+#include &lt;stdio.h&gt;
+#include &lt;math.h&gt;
+
+// Function prototype: Using pointers for &#x27;call by reference&#x27; to return 3 values.
+void stats(double *, double *, double *);
+
+int main()
+{
+    double sum, average, standardDeviation;
+    // Passing addresses of variables to receive results from the function.
+    stats(&amp;sum, &amp;average, &amp;standardDeviation);
+
+    printf(&quot;\n--- Stats ---&quot;
+           &quot;\nSum: %g&quot;
+           &quot;\nAverage: %g&quot;
+           &quot;\nStandard Deviation: %g&quot;,
+           sum, average, standardDeviation);
+    return 0;
+}
+
+// Function to calculate statistics on user-provided numbers.
+void stats(double *sum, double *average, double *standardDeviation)
+{
+    int n;
+    // Input Validation Loop for N
+    do
+    {
+        printf(&quot;How many numbers you want to give input: &quot;);
+
+        if (scanf(&quot;%d&quot;, &amp;n) == 1)
+        {
+            break;
+        }
+        else
+        {
+            printf(&quot;\nPlease enter a valid number.\n&quot;);
+            // Clearing input buffer to handle invalid input
+            while (getchar() != &#x27;\n&#x27; &amp;&amp; !feof(stdin))
+                ;
+        }
+    } while (1);
+
+    // Variable-Length Array (VLA) to store the input numbers.
+    double inputNumber[n];
+    int i = 0;
+
+    printf(&quot;\n--- Enter Numbers ---\n&quot;);
+
+    // Input Loop for numbers
+    while (i &lt; n)
+    {
+        printf(&quot;Enter number %d: &quot;, i + 1);
+
+        if (scanf(&quot;%lf&quot;, &amp;inputNumber[i]) == 1)
+        {
+            // Clearing input buffer after successful read
+            while (getchar() != &#x27;\n&#x27;)
+                ;
+            i++;
+        }
+        else
+        {
+            printf(&quot;Invalid input. Only integers are allowed. Please try again.\n&quot;);
+            // Clearing input buffer to handle invalid input
+            while (getchar() != &#x27;\n&#x27; &amp;&amp; !feof(stdin))
+                ;
+        }
+    }
+
+    // 1. Sum Calculation
+    double tempSum = 0;
+    for (i = 0; i &lt; n; i++)
+        tempSum += inputNumber[i];
+
+    // 2. Average (Mean) calculation
+    double tempAverage = tempSum / n;
+
+    // 3. Standard Deviation (Sample SD formula used)
+    double tempStandardDeviation = 0.0;
+
+    // Preventing division by zero if n is 1. SD is 0 for a single number.
+    if (n &gt; 1)
+    {
+        double tempSumation = 0;
+        // calculating the sum of squared differences from the mean
+        for (i = 0; i &lt; n; i++)
+            tempSumation += pow((inputNumber[i] - tempAverage), 2.0);
+
+        // Calculating sample standard deviation
+        tempStandardDeviation = sqrt(tempSumation / (n - 1));
+    }
+
+    // Assigning final values back to the variables in main().
+    *sum = tempSum;
+    *average = tempAverage;
+    *standardDeviation = tempStandardDeviation;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">lucproblem015.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/lucproblem015.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-letusc-lucproblem015_c', 'lucproblem015.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-letusc-lucproblem015_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/lucproblem015.c">
+                                            <pre><code class="language-c">/* Write a program that defines a function that calculates power of one
+number reaised to another and factorial value of a number in one cell. */
+/* Author - Amit Dutta, Date - 24th November, 2025 */
+/* Let Us C, Chap - 9, Page 159, Problem 9.2 */
+
+#include &lt;stdio.h&gt;
+
+void bothPowerFactorial(double, int, int, double *, long long *);
+
+int main()
+{
+    double a, resultPower;
+    int b, factN;
+    long long resultFactorial;
+    printf(&quot;Enter a and b for calculating a raised to b: &quot;);
+    scanf(&quot;%lf %d&quot;, &amp;a, &amp;b);
+    printf(&quot;Enter number to calculate the factorial: &quot;);
+    scanf(&quot;%d&quot;, &amp;factN);
+    if (b &lt; 0 || factN &lt; 0)
+    {
+        printf(&quot;\nOnly non-negative integer is allowed as input of b and factorial.&quot;);
+        return 1;
+    }
+    bothPowerFactorial(a, b, factN, &amp;resultPower, &amp;resultFactorial);
+    printf(&quot;\n%g Raised to %d: %g&quot;
+           &quot;\nFactorial of %d: %lld&quot;,
+           a, b, resultPower, factN, resultFactorial);
+    return 0;
+}
+
+void bothPowerFactorial(double a, int b, int n, double *resultPower, long long *resultFactorial)
+{
+    double tempResultPower = 1;
+    long long tempResultFactorial = 1;
+    int i;
+
+    for (i = 1; i &lt;= b; i++)
+        tempResultPower *= a;
+
+    for (i = 1; i &lt;= n; i++)
+        tempResultFactorial *= i;
+
+    *resultPower = tempResultPower;
+    *resultFactorial = tempResultFactorial;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">lucproblem016.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/letusc/lucproblem016.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-letusc-lucproblem016_c', 'lucproblem016.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-letusc-lucproblem016_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/letusc/lucproblem016.c">
+                                            <pre><code class="language-c">/* Figure 9.4 shows three memory locations and values stored in them.
+Write a program to declare  variables that implement the relationship
+shown. How will you print the values and addresses shown in the figure?
+On which machine the program should be executed to get such addresses?
+
+Figure 9.4:
+    value: 3.14, memory_address: 7fff9489c79c
+    value: 7fff9489c7a0, memory_address: 7fff4fd134b8
+    value: 7fff9489c79c,  memory_address: 7fff9489c7a0
+*/
+/* Author - Amit Dutta, Date - 24th November, 2025 */
+/* Let Us C, Chap - 9, Page 160, Problem 9.3 */
+
+#include &lt;stdio.h&gt;
+
+int main()
+{
+    float a = 3.14;
+    float *c = &amp;a;
+    float **b = &amp;c;
+
+    printf(&quot;Location 1 (Variable a):\n&quot;);
+    printf(&quot;Value: %g\n&quot;, a);
+    printf(&quot;Address: %p\n&quot;, (void *)&amp;a);
+    printf(&quot;------------------------------\n&quot;);
+
+    printf(&quot;Location 3 (Variable c: float *):\n&quot;);
+    printf(&quot;Value (Address stored): %p\n&quot;, (void *)c);
+    printf(&quot;Address of c itself: %p\n&quot;, (void *)&amp;c);
+    printf(&quot;Value pointed to (*c): %g\n&quot;, *c);
+    printf(&quot;------------------------------\n&quot;);
+
+    printf(&quot;Location 2 (Variable b: float **):\n&quot;);
+    printf(&quot;Value (Address stored): %p\n&quot;, (void *)b);
+    printf(&quot;Address of b itself: %p\n&quot;, (void *)&amp;b);
+    printf(&quot;Value pointed to (*b): %p\n&quot;, (void *)*b);
+    printf(&quot;Value pointed to (**b): %g\n&quot;, **b);
+    printf(&quot;------------------------------\n&quot;);
+
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+                </ul>
+            </div>
+        </li>
+
+                        <li class="border rounded-lg overflow-hidden">
+                            <div class="folder-header bg-gray-100 p-4 cursor-pointer hover:bg-blue-100 transition-colors duration-200" onclick="toggleFolder('practice-c')">
+                                <div class="flex items-center justify-between">
+                                    <div class="flex items-center">
+                                        <svg class="w-6 h-6 text-blue-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M3 7v10a2 2 0 002 2h14a2 2 0 002-2V9a2 2 0 00-2-2h-6l-2-2H5a2 2 0 00-2 2z"></path></svg>
+                                        <span class="font-medium text-gray-800">practice-c</span>
+                                        <span class="ml-2 text-sm text-gray-500">(11 files)</span>
+                                    </div>
+                                    <div class="flex items-center space-x-4">
+                                        <a href="https://github.com/notamitgamer/bsc/tree/main/practice-c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" onclick="event.stopPropagation()" title="View folder on GitHub">
+                                            <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                        </a>
+                                        <div class="chevron" id="chevron-practice-c"><svg class="w-5 h-5 text-gray-500 transition-transform duration-200" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M19 9l-7 7-7-7"></path></svg></div>
+                                    </div>
+                                </div>
+                            </div>
+                            <div class="folder-content hidden bg-white" id="folder-practice-c">
+                                <ul class="divide-y divide-gray-200">
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">pc001.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/practice-c/pc001.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-practice-c-pc001_c', 'pc001.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-practice-c-pc001_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/practice-c/pc001.c">
+                                            <pre><code class="language-c">/* Pattern :
+    1
+    1   2
+    1   2   3
+    1   2   3   4
+    1   2   3   4   5
+for n = 5
+*/
+/* Author - Amit Dutta, Date - 02nd October, 2025 */
+
+#include &lt;stdio.h&gt;
+int main()
+{
+    int i, j, num;
+    printf(&quot;Enter n : &quot;);
+    scanf(&quot;%d&quot;, &amp;num);
+    for (i = 1; i &lt;= num; i++)
+    {
+        for (j = 1; j &lt;= i; j++)
+        {
+            printf(&quot;%d\t&quot;, j);
+        }
+        printf(&quot;\n&quot;);
+    }
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">pc002.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/practice-c/pc002.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-practice-c-pc002_c', 'pc002.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-practice-c-pc002_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/practice-c/pc002.c">
+                                            <pre><code class="language-c">/* Pattern :
+    1   2   3   4   5
+    6   7   8   9
+    10  11  12
+    13  14
+    15
+for n = 5
+*/
+
+/* Author - Amit Dutta, Date - 02nd NOVEMBER, 2025 */
+
+#include &lt;stdio.h&gt;
+int main()
+{
+    int i, j, n, temp = 1;
+    printf(&quot;Enter n : &quot;);
+    scanf(&quot;%d&quot;, &amp;n);
+    for (i = n; i &gt;= 1; i--)
+    {
+        for (j = 1; j &lt;= i; j++)
+        {
+            printf(&quot;%d\t&quot;, temp);
+            temp++;
+        }
+        printf(&quot;\n&quot;);
+    }
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">pc003.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/practice-c/pc003.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-practice-c-pc003_c', 'pc003.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-practice-c-pc003_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/practice-c/pc003.c">
+                                            <pre><code class="language-c">/* Pattern :
+    1
+    2   4
+    3   6   9
+    4   8   12  16
+    5   10  15  20  25
+for n = 5
+*/
+
+#include &lt;stdio.h&gt;
+int main()
+{
+    int i, j, n;
+    printf(&quot;Enter n : &quot;);
+    scanf(&quot;%d&quot;, &amp;n);
+    for (i = 1; i &lt;= n; i++)
+    {
+        for (j = 1; j &lt;= i; j++)
+        {
+            printf(&quot;%d\t&quot;, i * j);
+        }
+        printf(&quot;\n&quot;);
+    }
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">pc004.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/practice-c/pc004.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-practice-c-pc004_c', 'pc004.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-practice-c-pc004_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/practice-c/pc004.c">
+                                            <pre><code class="language-c">/* Pattern :
+                    5   4   3   2   1
+                4   3   2   1
+            3   2   1
+        2   1
+    1
+for n = 5
+*/
+
+#include &lt;stdio.h&gt;
+int main()
+{
+    int i, j, k, n;
+    printf(&quot;Enter n : &quot;);
+    scanf(&quot;%d&quot;, &amp;n);
+    for (i = n; i &gt;= 1; i--)
+    {
+        for (j = 1; j &lt;= i - 1; j++)
+        {
+            printf(&quot;\t&quot;);
+        }
+        for (k = i; k &gt;= 1; k--)
+        {
+            printf(&quot;%d\t&quot;, k);
+        }
+        printf(&quot;\n&quot;);
+    }
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">pc005.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/practice-c/pc005.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-practice-c-pc005_c', 'pc005.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-practice-c-pc005_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/practice-c/pc005.c">
+                                            <pre><code class="language-c">/* Pattern :
+    1
+    1   2
+    3   5   8
+    13  21  34  55
+    89  144 233 377 610
+for n = 5
+*/
+
+#include &lt;stdio.h&gt;
+int main()
+{
+    int i, j, n;
+    long long temp1 = 0, temp2 = 1, temp3;
+    printf(&quot;Enter n : &quot;);
+    scanf(&quot;%d&quot;, &amp;n);
+    printf(&quot;1\n&quot;);
+    for (i = 2; i &lt;= n; i++)
+    {
+        for (j = 1; j &lt;= i; j++)
+        {
+            temp3 = temp1 + temp2;
+            printf(&quot;%lld\t&quot;, temp3);
+            temp1 = temp2;
+            temp2 = temp3;
+        }
+        printf(&quot;\n&quot;);
+    }
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">pc006.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/practice-c/pc006.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-practice-c-pc006_c', 'pc006.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-practice-c-pc006_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/practice-c/pc006.c">
+                                            <pre><code class="language-c">/* Prime number check */
+/* Author - Amit Dutta, Date - 03rd NOVEMBER, 2025 */
+
+#include &lt;stdio.h&gt;
+#include &lt;math.h&gt;
+
+int main()
+{
+    int num, i, temp;
+    printf(&quot;Enter the number : &quot;);
+    if(scanf(&quot;%d&quot;, &amp;num) != 1) {
+        printf(&quot;Only postive number allowed.&quot;);
+        return 1;
+    }
+    if(num &lt;= 0) {
+        printf(&quot;\nOnly potive number are allowed.&quot;);
+        return 1;
+    }
+    if(num == 1) {
+        printf(&quot;\nInput 1 is not a prime number.&quot;);
+        return 0;
+    }
+    if(num == 2) {
+        printf(&quot;\nInput 2 is a prime number.&quot;);
+        return 0;
+    }
+    if(num % 2 == 0) {
+        printf(&quot;\nInput %d is not a prime number.&quot;, num);
+        return 0;
+    }
+    temp = (int)sqrt(num);
+    for (i = 3; i &lt;= temp; i += 2)
+    {
+        if (num % i == 0)
+        {
+            printf(&quot;\nInput %d is not a prime number.&quot;, num);
+            return 0;
+        }
+    }
+    printf(&quot;\nInput %d is a prime number.&quot;, num);
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">pc007.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/practice-c/pc007.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-practice-c-pc007_c', 'pc007.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-practice-c-pc007_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/practice-c/pc007.c">
+                                            <pre><code class="language-c">/* Armstrong number check only for three digit */
+/* Author - Amit Dutta, Date - 03rd NOVEMBER, 2025 */
+
+#include &lt;stdio.h&gt;
+
+int main()
+{
+    int num, temp1, armstrongCheck = 0;
+    printf(&quot;Enter a three digit number : &quot;);
+    if (scanf(&quot;%d&quot;, &amp;num) != 1)
+    {
+        printf(&quot;\nOnly positive number allowed.&quot;);
+        return 1;
+    }
+    if (num &lt; 100 || num &gt; 999)
+    {
+        printf(&quot;\nOnly Three digit postive number allowed.&quot;);
+        return 1;
+    }
+    temp1 = num;
+    while (temp1 &gt; 0)
+    {
+        armstrongCheck += (temp1 % 10) * (temp1 % 10) * (temp1 % 10);
+        temp1 /= 10;
+    }
+    if (armstrongCheck == num)
+        printf(&quot;\nInput %d is a armstrong number.&quot;, num);
+    else
+        printf(&quot;\nInput %d is not a armstrong number.&quot;, num);
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">pc008.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/practice-c/pc008.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-practice-c-pc008_c', 'pc008.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-practice-c-pc008_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/practice-c/pc008.c">
+                                            <pre><code class="language-c">/* Factorial upto N */
+/* Author - Amit Dutta, Date - 03rd November, 2025 */
+
+#include &lt;stdio.h&gt;
+
+int main()
+{
+    int n, i;
+    long long fact = 1;
+    printf(&quot;Enter n : &quot;);
+    if (scanf(&quot;%d&quot;, &amp;n) != 1)
+    {
+        printf(&quot;\nOnly non-negative number allowed.&quot;);
+        return 1;
+    }
+    if (n &lt; 0)
+    {
+        printf(&quot;\nOnly non-negative number allowed.&quot;);
+        return 1;
+    }
+    if (n == 0)
+    {
+        printf(&quot;\nFactorial of 0 : 1&quot;);
+        return 0;
+    }
+    for (i = 1; i &lt;= n; i++)
+        fact *= i;
+    printf(&quot;\nFactorial of %d : %lld&quot;, n, fact);
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">pc009.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/practice-c/pc009.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-practice-c-pc009_c', 'pc009.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-practice-c-pc009_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/practice-c/pc009.c">
+                                            <pre><code class="language-c">/* Sum of digit */
+/* Author - Amit Dutta, Date - 04th November, 2025 */
+
+#include &lt;stdio.h&gt;
+int main()
+{
+    int num, sumOfDigit = 0, temp;
+    printf(&quot;Enter the number : &quot;);
+    if (scanf(&quot;%d&quot;, &amp;num) != 1)
+    {
+        printf(&quot;\nOnly a number is allowed.&quot;);
+        return 1;
+    }
+    temp = num;
+    while (temp &gt; 0)
+    {
+        sumOfDigit += temp % 10;
+        temp /= 10;
+    }
+    printf(&quot;\nSum of the digit %d : %d&quot;, num, sumOfDigit);
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">pc010.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/practice-c/pc010.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-practice-c-pc010_c', 'pc010.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-practice-c-pc010_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/practice-c/pc010.c">
+                                            <pre><code class="language-c">/* Reverse a number */
+/* Author - Amit Dutta, Date - 04th November, 2025 */
+
+#include &lt;stdio.h&gt;
+int main()
+{
+    int num, temp, rev = 0;
+    printf(&quot;\nEnter the number : &quot;);
+    if (scanf(&quot;%d&quot;, &amp;num) != 1)
+    {
+        printf(&quot;\nOnly a number is allowed.&quot;);
+        return 1;
+    }
+    temp = num;
+    while (temp &gt; 0)
+    {
+        rev = (rev * 10) + (temp % 10);
+        temp /= 10;
+    }
+    printf(&quot;\nReverse of the number %d : %d&quot;, num, rev);
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">pc011.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/practice-c/pc011.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-practice-c-pc011_c', 'pc011.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-practice-c-pc011_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/practice-c/pc011.c">
+                                            <pre><code class="language-c">/* Write a C program that takes two positive integers, L (Lower Bound)
+and U (Upper Bound), as input from the user. The program must find and print
+the count of all numbers between L and U (inclusive) that
+are also a Palindrome Number. */
+/* Author - Amit Dutta, Date - 11th November, 2025 */
+
+#include &lt;stdio.h&gt;
+#define true 1
+#define false 0
+
+int isPalindrome(int num)
+{
+    int temp = num, numRev = 0;
+    while (temp &gt; 0)
+    {
+        numRev = (numRev * 10) + (temp % 10);
+        temp /= 10;
+    }
+    if (num == numRev)
+        return true;
+    else
+        return false;
+}
+
+int main()
+{
+    int uBound, lBound, num, palindromeCount = 0;
+    printf(&quot;Enter the Lower Bound and Upper Bound : &quot;);
+    if (scanf(&quot;%d %d&quot;, &amp;lBound, &amp;uBound) != 2)
+    {
+        printf(&quot;\nOnly Integer values are allowed.&quot;);
+        return 1;
+    }
+    if (lBound &lt; 0 || uBound &lt; 0 || lBound &gt; uBound)
+    {
+        printf(&quot;\nPlease enter appropriate inforamtion.&quot;);
+        return 1;
+    }
+    printf(&quot;Palindrome Numbers from %d to %d :&quot;, lBound, uBound);
+    for (num = lBound; num &lt;= uBound; num++)
+    {
+        if (isPalindrome(num))
+        {
+            printf(&quot;  %d&quot;, num);
+            palindromeCount++;
+        }
+    }
+    printf(&quot;\nTotal Palindrome number found inside the range (%d to %d) : %d&quot;, lBound, uBound, palindromeCount);
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+                </ul>
+            </div>
+        </li>
+
+                        <li class="border rounded-lg overflow-hidden">
+                            <div class="folder-header bg-gray-100 p-4 cursor-pointer hover:bg-blue-100 transition-colors duration-200" onclick="toggleFolder('tuition-c')">
+                                <div class="flex items-center justify-between">
+                                    <div class="flex items-center">
+                                        <svg class="w-6 h-6 text-blue-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M3 7v10a2 2 0 002 2h14a2 2 0 002-2V9a2 2 0 00-2-2h-6l-2-2H5a2 2 0 00-2 2z"></path></svg>
+                                        <span class="font-medium text-gray-800">tuition-c</span>
+                                        <span class="ml-2 text-sm text-gray-500">(121 files)</span>
+                                    </div>
+                                    <div class="flex items-center space-x-4">
+                                        <a href="https://github.com/notamitgamer/bsc/tree/main/tuition-c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" onclick="event.stopPropagation()" title="View folder on GitHub">
+                                            <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                        </a>
+                                        <div class="chevron" id="chevron-tuition-c"><svg class="w-5 h-5 text-gray-500 transition-transform duration-200" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M19 9l-7 7-7-7"></path></svg></div>
+                                    </div>
+                                </div>
+                            </div>
+                            <div class="folder-content hidden bg-white" id="folder-tuition-c">
+                                <ul class="divide-y divide-gray-200">
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">APC-PRAC-001.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-001.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-APC-PRAC-001_c', 'APC-PRAC-001.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-APC-PRAC-001_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-001.c">
+                                            <pre><code class="language-c">/* WAP to calculate area and perimeter of a rectangle 
+by accepting length and breadth as input. */
+// Author - Amit Dutta, Date - 18th SEP, 2025
+
+#include&lt;stdio.h&gt;
+int main() {
+    double length, breadth, area, perimeter;
+    printf(&quot;Enter the length and breadth of the Rectangle : &quot;);
+    scanf(&quot;%lf %lf&quot;, &amp;length, &amp;breadth);
+    area = length * breadth;
+    perimeter = 2 * (length + breadth);
+    printf(&quot;\nArea of the Rectangle : %g&quot;
+           &quot;\nPerimeter of the Rectangle : %g&quot;, area, perimeter);
+    return 0;
+
+}
+
+</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">APC-PRAC-002.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-002.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-APC-PRAC-002_c', 'APC-PRAC-002.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-APC-PRAC-002_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-002.c">
+                                            <pre><code class="language-c">/* WAP to calculate area of a circle using math library
+method. Take radius of the circle as input. */
+/* Author - Amit Dutta, Date - 18th SEP, 2025 */
+
+#include &lt;stdio.h&gt;
+#include &lt;math.h&gt;
+int main()
+{
+    double r, area;
+    printf(&quot;Enter the radius of the circle : &quot;);
+    scanf(&quot;%lf&quot;, &amp;r);
+    area = M_PI * pow(r, 2);
+    printf(&quot;\nArea of the circle : %g&quot;, area);
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">APC-PRAC-003.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-003.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-APC-PRAC-003_c', 'APC-PRAC-003.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-APC-PRAC-003_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-003.c">
+                                            <pre><code class="language-c">/* WAP to accept  diagonal of a square and calculate area, parimeter */
+/* Author - Amit Dutta, Date - 18th SEP, 2025 */
+
+#include &lt;stdio.h&gt;
+#include &lt;math.h&gt;
+int main()
+{
+    double dia, side, area, peri;
+    printf(&quot;Enter the diagonal of the square : &quot;);
+    scanf(&quot;%lf&quot;, &amp;dia);
+    side = dia / sqrt(2);
+    area = pow(side, 2);
+    peri = 4 * side;
+    printf(&quot;\nArea of the square      : %g&quot;
+           &quot;\nPerimeter of the square : %g&quot;,
+           area, peri);
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">APC-PRAC-004.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-004.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-APC-PRAC-004_c', 'APC-PRAC-004.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-APC-PRAC-004_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-004.c">
+                                            <pre><code class="language-c">/* WAP to calculate and display radius of a circle by taking the area as input. */
+/* Author - Amit Dutta, Date - 18th SEP, 2025 */
+
+#include &lt;stdio.h&gt;
+#include &lt;math.h&gt;
+int main()
+{
+    double r, area;
+    printf(&quot;Enter the area of the circle : &quot;);
+    scanf(&quot;%lf&quot;, &amp;area);
+    r = sqrt(area / M_PI);
+    printf(&quot;\nRadius of the circle : %g&quot;, r);
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">APC-PRAC-005.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-005.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-APC-PRAC-005_c', 'APC-PRAC-005.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-APC-PRAC-005_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-005.c">
+                                            <pre><code class="language-c">/* WAP a program that accept number of days
+as input and represent it as years, months and days. */
+/* Author - Amit Dutta, Date - 19th SEP, 2025 */
+
+#include &lt;stdio.h&gt;
+int main()
+{
+    int days, months, years, temp;
+    printf(&quot;Enter the No. of days : &quot;);
+    scanf(&quot;%d&quot;, &amp;days);
+    temp = days;
+    years = days / 365;
+    days = days % 365;
+    months = days / 30;
+    days = days % 30;
+    printf(&quot;%d Days = %d Years, %d Months, %d Days&quot;, temp, years, months, days);
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">APC-PRAC-006.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-006.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-APC-PRAC-006_c', 'APC-PRAC-006.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-APC-PRAC-006_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-006.c">
+                                            <pre><code class="language-c">/* WAP that accept seconds as input and represent it an hours, minutes and seconds. */
+/* Author - Amit Dutta, Date - 19th SEP, 2025 */
+
+#include &lt;stdio.h&gt;
+int main()
+{
+    int sec, hours, minutes, temp;
+    printf(&quot;Enter the no of seconds : &quot;);
+    scanf(&quot;%d&quot;, &amp;sec);
+    temp = sec;
+    hours = sec / 3600;
+    sec = sec % 3600;
+    minutes = sec / 60;
+    sec = sec % 60;
+    printf(&quot;\n%d Seconds = %d Hours, %d Minutes, %d Seconds.&quot;, temp, hours, minutes, sec);
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">APC-PRAC-007.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-007.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-APC-PRAC-007_c', 'APC-PRAC-007.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-APC-PRAC-007_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-007.c">
+                                            <pre><code class="language-c">/* WAP that accept basic salary of an employee and display gross salary,
+net salary generated by below formula.
+    DA = 25% of the basic salary.
+    HRA = 12.5% of the basic salary.
+    PF = 10% of the basic salary.
+    gross salary = basic salary + da + hra
+    net salary = gross salary - pf
+*/
+/* Author - Amit Dutta, Date - 19th SEP, 2025 */
+
+#include &lt;stdio.h&gt;
+int main()
+{
+    double bs, gs, ns, da, hra, pf;
+    printf(&quot;Enter the basic salary of the employee : &quot;);
+    scanf(&quot;%lf&quot;, &amp;bs);
+    da = bs * 0.25;
+    hra = bs * 0.125;
+    pf = bs * 0.10;
+    gs = bs + da + hra;
+    ns = gs - pf;
+    printf(&quot;\nGross Salary : %g&quot;
+           &quot;\nNet Salary   : %g&quot;,
+           gs, ns);
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">APC-PRAC-008.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-008.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-APC-PRAC-008_c', 'APC-PRAC-008.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-APC-PRAC-008_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-008.c">
+                                            <pre><code class="language-c">/* WAP to multiply and divide a number by 4 without
+using multiplication and division operator. */
+/* Author - Amit Dutta, Date - 19th SEP, 2025 */
+
+#include &lt;stdio.h&gt;
+int main()
+{
+    int num, multi, div;
+    printf(&quot;Enter the number : &quot;);
+    scanf(&quot;%d&quot;, &amp;num);
+    multi = num &lt;&lt; 2;
+    div = num &gt;&gt; 2;
+    printf(&quot;Multiplication : %d&quot;
+           &quot;\nDivision : %d&quot;,
+           multi, div);
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">APC-PRAC-009.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-009.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-APC-PRAC-009_c', 'APC-PRAC-009.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-APC-PRAC-009_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-009.c">
+                                            <pre><code class="language-c">/* WAP to swap two integer variable without using Third variable. */
+/* Author - Amit Dutta, Date - 19th SEP, 2025 */
+
+#include &lt;stdio.h&gt;
+int main()
+{
+    int a = 4, b = 6;
+    printf(&quot;Before swap : A = %d and B = %d&quot;, a, b);
+    a = a ^ b;
+    b = a ^ b;
+    a = a ^ b;
+    printf(&quot;\nAfter swap  : A = %d and B = %d&quot;, a, b);
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">APC-PRAC-010.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-010.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-APC-PRAC-010_c', 'APC-PRAC-010.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-APC-PRAC-010_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-010.c">
+                                            <pre><code class="language-c">/* WAP to calculate and display the valve of the given expression :
+ (1/a^3) + (1/(b+2)^3) + (1/(c^4 + root(2)))
+ take a, b, c as input.
+*/
+/* Author - Amit Dutta, Date - 19th SEP, 2025 */
+
+#include &lt;stdio.h&gt;
+#include &lt;math.h&gt;
+int main()
+{
+    double a, b, c, result;
+    printf(&quot;Enter the value for a, b and c : &quot;);
+    scanf(&quot;%lf %lf %lf&quot;, &amp;a, &amp;b, &amp;c);
+    result = (1 / pow(a, 3)) + (1 / pow((b + 2), 3)) + (1 / (pow(c, 4) + sqrt(2)));
+    printf(&quot;\nResult = %g&quot;, result);
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">APC-PRAC-011.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-011.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-APC-PRAC-011_c', 'APC-PRAC-011.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-APC-PRAC-011_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-011.c">
+                                            <pre><code class="language-c">/* Write a program to input positive number and check whether the number is
+perfect square or not. If the number is negetive then display appropriate message */
+/* Author - Amit Dutta, Date - 31st October, 2025 */
+
+#include &lt;stdio.h&gt;
+#include &lt;math.h&gt;
+
+int main()
+{
+    int num, temp;
+    printf(&quot;Enter the number : &quot;);
+    scanf(&quot;%d&quot;, &amp;num);
+    if (num &lt; 0)
+    {
+        printf(&quot;\nYou entered a negetive number.&quot;);
+        return 1;
+    }
+    temp = (int)sqrt(num);
+    if (temp * temp == num)
+    {
+        printf(&quot;\nInput %d is a perfect square number.&quot;, num);
+        return 0;
+    }
+    else
+        printf(&quot;\nInput %d is not a perfect square number.&quot;, num);
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">APC-PRAC-012.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-012.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-APC-PRAC-012_c', 'APC-PRAC-012.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-APC-PRAC-012_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-012.c">
+                                            <pre><code class="language-c">/* Write a program to input three integer and find out second largest */
+/* Author - Amit Dutta, Date - 31st October, 2025 */
+
+#include &lt;stdio.h&gt;
+
+int main()
+{
+    int a, b, c, secondLargest;
+    printf(&quot;Enter three number : &quot;);
+    scanf(&quot;%d %d %d&quot;, &amp;a, &amp;b, &amp;c);
+    if ((a &lt; b &amp;&amp; a &gt; c) || (a &gt; b &amp;&amp; a &lt; c))
+        secondLargest = a;
+    if ((b &lt; a &amp;&amp; b &gt; c) || (b &gt; a &amp;&amp; b &lt; c))
+        secondLargest = b;
+    if ((c &lt; b &amp;&amp; c &gt; a) || (c &gt; b &amp;&amp; c &lt; a))
+        secondLargest = c;
+    printf(&quot;\nSecond Largest : %d&quot;, secondLargest);
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">APC-PRAC-013.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-013.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-APC-PRAC-013_c', 'APC-PRAC-013.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-APC-PRAC-013_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-013.c">
+                                            <pre><code class="language-c">/* Write a program to input sum(p), rate of interest(r), time(t) and type of interest
+(&#x27;s&#x27; for simple interes, &#x27;c&#x27; for compound interest), then calculate and display the earned interest */
+/* Author - Amit Dutta, Date - 31st October, 2025 */
+
+#include &lt;stdio.h&gt;
+#include &lt;math.h&gt;
+#include &lt;ctype.h&gt;
+
+int main()
+{
+    double p, t, r, si, ci;
+    char mode;
+    printf(&quot;Enter the Principle, Time (Year) and the Rate of Interest : &quot;);
+    scanf(&quot;%lf %lf %lf&quot;, &amp;p, &amp;t, &amp;r);
+    printf(&quot;Enter the mode of calculation (&#x27;s&#x27; for simple interest, &#x27;c&#x27; for compound interest) : &quot;);
+    scanf(&quot; %c&quot;, &amp;mode);
+    mode = tolower(mode);
+    switch (mode)
+    {
+    case &#x27;s&#x27;:
+        si = (p * t * r) / 100;
+        printf(&quot;\nSimple Interest : %g&quot;, si);
+        return 0;
+    case &#x27;c&#x27;:
+        ci = (p * pow(1 + (r / 100), t)) - p;
+        printf(&quot;\nCompound Interest : %g&quot;, ci);
+        return 0;
+    default:
+        printf(&quot;\nYou entered a wrong choice.&quot;);
+        return 1;
+    }
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">APC-PRAC-014.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-014.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-APC-PRAC-014_c', 'APC-PRAC-014.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-APC-PRAC-014_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-014.c">
+                                            <pre><code class="language-c">/* Write a program to calculate and display the maturity amount taking
+the sum and number of days as input.
+    No. of Days     Rate of Interest
+    ===========     ================
+    &lt;= 180          5.57 %
+    181 - 364       7.75 %
+    365 - 500       9.25 %
+    &gt; 500           9.15 %
+*/
+/* Author - Amit Dutta, Date - 31st October, 2025 */
+
+// This code has not been compiled.
+// If you find any issues, please create a new issue on GitHub regarding them.
+// Go to this link to create a new issue: https://github.com/notamitgamer/bsc/issues
+
+#include &lt;stdio.h&gt;
+
+int main()
+{
+    double p, t, r, si;
+    int days;
+    printf(&quot;Enter the Principle, Time (Days) : &quot;);
+    scanf(&quot;%lf %d&quot;, &amp;p, &amp;days);
+    if (days &gt; 0 &amp;&amp; days &lt;= 180)
+        r = 5.57;
+    else if (days &gt; 180 &amp;&amp; days &lt;= 364)
+        r = 7.75;
+    else if (days &gt; 364 &amp;&amp; days &lt;= 500)
+        r = 9.25;
+    else if (days &gt; 500)
+        r = 9.15;
+    si = (p * t * r) / 100;
+    printf(&quot;\nMaturity Amount : %d&quot;, si + p);
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">APC-PRAC-015.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-015.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-APC-PRAC-015_c', 'APC-PRAC-015.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-APC-PRAC-015_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-015.c">
+                                            <pre><code class="language-c">/* Write a program to display all numbers between lb (lower bound) and up (upper bound)
+which ends with digit 7 or divisible by 7. */
+/* Author - Amit Dutta, Date - 06th November, 2025 */
+// File Name - amit0611202501.c (LAB), APC-PRAC-015.c (Local)
+
+// This code has not been compiled.
+// If you find any issues, please create a new issue on GitHub regarding them.
+// Go to this link to create a new issue: https://github.com/notamitgamer/bsc/issues
+
+#include &lt;stdio.h&gt;
+
+int main()
+{
+    int lb, ub, i;
+    printf(&quot;Enter the lb, ub : &quot;);
+    scanf(&quot;%d %d&quot;, &amp;lb, &amp;ub);
+    printf(&quot;\nEnds with 7 :&quot;);
+    for (i = lb; i &lt;= ub; i++)
+    {
+        if (i % 10 == 7)
+        {
+            printf(&quot;  %d&quot;, i);
+        }
+    }
+    printf(&quot;\nDivisible by 7 :&quot;);
+    for (i = lb; i &lt;= ub; i++)
+    {
+        if (i % 7 == 0)
+        {
+            printf(&quot;  %d&quot;, i);
+        }
+    }
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">APC-PRAC-016.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-016.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-APC-PRAC-016_c', 'APC-PRAC-016.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-APC-PRAC-016_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-016.c">
+                                            <pre><code class="language-c">/* Write a program to check palindrome number. */
+/* Author - Amit Dutta, Date - 06th November, 2025 */
+// File Name - amit0611202502.c (LAB), APC-PRAC-016.c (Local)
+
+// This code has not been compiled.
+// If you find any issues, please create a new issue on GitHub regarding them.
+// Go to this link to create a new issue: https://github.com/notamitgamer/bsc/issues
+
+#include &lt;stdio.h&gt;
+
+int main()
+{
+    int num, temp, rev = 0;
+    printf(&quot;Enter the number : &quot;);
+    scanf(&quot;%d&quot;, &amp;num);
+    temp = num;
+    while (temp &gt; 0)
+    {
+        rev = (rev * 10) + (temp % 10);
+        temp /= 10;
+    }
+    if (rev == num)
+        printf(&quot;\nInput %d is a palindrome number.&quot;, num);
+    else
+        printf(&quot;\nInput %d is not a palindrome number.&quot;, num);
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">APC-PRAC-017.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-017.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-APC-PRAC-017_c', 'APC-PRAC-017.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-APC-PRAC-017_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-017.c">
+                                            <pre><code class="language-c">/* Write a program to check perfect number. */
+/* Author - Amit Dutta, Date - 06th November, 2025 */
+// File Name - amit0611202503.c (LAB), APC-PRAC-017.c (Local)
+
+// This code has not been compiled.
+// If you find any issues, please create a new issue on GitHub regarding them.
+// Go to this link to create a new issue: https://github.com/notamitgamer/bsc/issues
+
+#include &lt;stdio.h&gt;
+
+int main()
+{
+    int num, i, divisibleSum = 0;
+    printf(&quot;Enter a number : &quot;);
+    scanf(&quot;%d&quot;, &amp;num);
+    for (i = 1; i &lt;= num / 2; i++)
+    {
+        if (num % i == 0)
+        {
+            divisibleSum += i;
+        }
+    }
+    if (divisibleSum == num)
+        printf(&quot;\nInput %d ia a Perfect Number.&quot;, num);
+    else
+        printf(&quot;\nInput %d is NOT a Perfect Number.&quot;, num);
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">APC-PRAC-018.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-018.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-APC-PRAC-018_c', 'APC-PRAC-018.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-APC-PRAC-018_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-018.c">
+                                            <pre><code class="language-c">/* Write a program to check Automorphic Number. */
+/* Author - Amit Dutta, Date - 06th November, 2025 */
+// File Name - amit0611202504.c (LAB), APC-PRAC-018.c (Local)
+
+// This code has not been compiled.
+// If you find any issues, please create a new issue on GitHub regarding them.
+// Go to this link to create a new issue: https://github.com/notamitgamer/bsc/issues
+
+#include &lt;stdio.h&gt;
+#include &lt;math.h&gt;
+
+int main()
+{
+    int num, square, count = 0, temp, modNum;
+    printf(&quot;Enter the number : &quot;);
+    scanf(&quot;%d&quot;, &amp;num);
+    square = (int)pow(num, 2);
+    temp = num;
+    while (temp &gt; 0)
+    {
+        temp /= 10;
+        count++;
+    }
+    modNum = (int)pow(10, count);
+    temp = square % modNum;
+    if (num == temp)
+        printf(&quot;\nInput %d is a Automorphic Number.&quot;, num);
+    else
+        printf(&quot;\nInput %d is a Automorphic Number.&quot;, num);
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">APC-PRAC-019.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-019.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-APC-PRAC-019_c', 'APC-PRAC-019.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-APC-PRAC-019_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-019.c">
+                                            <pre><code class="language-c">/* Write a program to find hcf of two numbers */
+/* Author - Amit Dutta, Date - 07th November, 2025 */
+// File Name - amit0711202501.c (LAB), APC-PRAC-019.c (Local)
+
+// This code has not been compiled.
+// If you find any issues, please create a new issue on GitHub regarding them.
+// Go to this link to create a new issue: https://github.com/notamitgamer/bsc/issues
+
+#include &lt;stdio.h&gt;
+
+int main()
+{
+    int a, b, temp, temp_a, temp_b;
+    printf(&quot;Enter the a and b : &quot;);
+    scanf(&quot;%d %d&quot;, &amp;a, &amp;b);
+    temp_a = a, temp_b = b;
+    while (b &gt; 0)
+    {
+        temp = a;
+        a = b;
+        b = temp % b;
+    }
+    printf(&quot;\nHCF of %d and %d is : %d\n&quot;, temp_a, temp_b, a);
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">APC-PRAC-020.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-020.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-APC-PRAC-020_c', 'APC-PRAC-020.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-APC-PRAC-020_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-020.c">
+                                            <pre><code class="language-c">/* Write a program to check if two number is co-prime or not */
+/* Author - Amit Dutta, Date - 07th November, 2025 */
+// File Name - amit0711202502.c (LAB), APC-PRAC-020.c (Local)
+
+// This code has not been compiled.
+// If you find any issues, please create a new issue on GitHub regarding them.
+// Go to this link to create a new issue: https://github.com/notamitgamer/bsc/issues
+
+#include &lt;stdio.h&gt;
+
+int main()
+{
+    int a, b, temp, temp_a, temp_b;
+    printf(&quot;Enter the a and b : &quot;);
+    scanf(&quot;%d %d&quot;, &amp;a, &amp;b);
+    temp_a = a, temp_b = b;
+    while (b &gt; 0)
+    {
+        temp = a;
+        a = b;
+        b = temp % b;
+    }
+    if (a == 1)
+        printf(&quot;\n%d and %d is co-prime\n&quot;, temp_a, temp_b);
+    else
+        printf(&quot;\n%d and %d is NOT co-prime\n&quot;, temp_a, temp_b);
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">APC-PRAC-021.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-021.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-APC-PRAC-021_c', 'APC-PRAC-021.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-APC-PRAC-021_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-021.c">
+                                            <pre><code class="language-c">/* Write a program to check special number (sum of digit + product of digit = original number) */
+/* Author - Amit Dutta, Date - 07th November, 2025 */
+// File Name - amit0711202503.c (LAB), APC-PRAC-021.c (Local)
+
+// This code has not been compiled.
+// If you find any issues, please create a new issue on GitHub regarding them.
+// Go to this link to create a new issue: https://github.com/notamitgamer/bsc/issues
+
+#include &lt;stdio.h&gt;
+
+int main()
+{
+    int num, temp, sumOfDigit = 0, productOfDigit = 1;
+    printf(&quot;Enter the number to check if it is a special number : &quot;);
+    scanf(&quot;%d&quot;, &amp;num);
+    temp = num;
+    while (temp &gt; 0)
+    {
+        sumOfDigit += temp % 10;
+        productOfDigit *= temp % 10;
+        temp /= 10;
+    }
+    temp = sumOfDigit + productOfDigit;
+    if (num == temp)
+        printf(&quot;\nInput %d is a special number.&quot;, num);
+    else
+        printf(&quot;\nInput %d is not a special number.&quot;, num);
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">APC-PRAC-022.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-022.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-APC-PRAC-022_c', 'APC-PRAC-022.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-APC-PRAC-022_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-022.c">
+                                            <pre><code class="language-c">/* Write a program to accept a number and check whether the number is twisted prime or not */
+/* Author - Amit Dutta, Date - 07th November, 2025 */
+// File Name - amit0711202504.c (LAB), APC-PRAC-022.c (Local)
+
+// This code has not been compiled.
+// If you find any issues, please create a new issue on GitHub regarding them.
+// Go to this link to create a new issue: https://github.com/notamitgamer/bsc/issues
+
+#include &lt;stdio.h&gt;
+#include &lt;math.h&gt;
+#include &lt;stdbool.h&gt;
+
+bool checkPrime(int num)
+{
+    if (num &lt; 2)
+        return false;
+    if (num == 2)
+        return true;
+    if (num % 2 == 0)
+        return false;
+    int limit = (int)sqrt(num);
+    for (int i = 3; i &lt;= limit; i += 2)
+        if (num % i == 0)
+            return false;
+    return true;
+}
+
+int reverseNumber(int num)
+{
+    int reverse = 0;
+    while (num &gt; 0)
+    {
+        reverse = (reverse * 10) + (num % 10);
+        num /= 10;
+    }
+    return reverse;
+}
+
+int main()
+{
+    int num;
+    printf(&quot;Enter the number : &quot;);
+    scanf(&quot;%d&quot;, &amp;num);
+    if (!checkPrime(num))
+    {
+        printf(&quot;\nInput %d is not a prime number.&quot;, num);
+        return 0;
+    }
+    if (checkPrime(reverseNumber(num)))
+        printf(&quot;\nInput %d is a twisted prime number.&quot;, num);
+    else
+        printf(&quot;\nInput %d is not a twisted prime number.&quot;, num);
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">APC-PRAC-023.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-023.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-APC-PRAC-023_c', 'APC-PRAC-023.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-APC-PRAC-023_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-023.c">
+                                            <pre><code class="language-c">/* Pattern :
+    (a) 1, -3, 5, -7, 9, -11, ... upto n times
+    (b) 0, 3, 8, 15, ... upto n times
+*/
+/* Author - Amit Dutta, Date - 07th November, 2025 */
+// File Name - amit0711202505.c (LAB), APC-PRAC-023.c (Local)
+
+// This code has not been compiled.
+// If you find any issues, please create a new issue on GitHub regarding them.
+// Go to this link to create a new issue: https://github.com/notamitgamer/bsc/issues
+
+#include &lt;stdio.h&gt;
+#include &lt;stdbool.h&gt;
+
+int main()
+{
+    int n, i, temp = 1;
+    bool isNegative = true;
+    printf(&quot;Enter the n : &quot;);
+    scanf(&quot;%d&quot;, &amp;n);
+    printf(&quot;\nPattern A :&quot;);
+    for (i = 1; i &lt;= n; i++)
+    {
+        if (!isNegative)
+        {
+            printf(&quot;  %d&quot;, temp * -1);
+            isNegative = true;
+        }
+        else
+        {
+            printf(&quot;  %d&quot;, temp);
+            isNegative = false;
+        }
+        temp += 2;
+    }
+    printf(&quot;\nPattern B :&quot;);
+    for (i = 1; i &lt;= n; i++)
+    {
+        temp = (i * i) - 1;
+        printf(&quot;  %d&quot;, temp);
+    }
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">APC-PRAC-024.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-024.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-APC-PRAC-024_c', 'APC-PRAC-024.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-APC-PRAC-024_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-024.c">
+                                            <pre><code class="language-c">/*
+Pattern:
+	1
+	2	1
+	3	2	1
+	4	3	2	1
+	5	4	3	2	1
+*/
+/* Author = Amit Dutta, Date - 13th November, 2025 */
+// File Name - amit1311202501.c (LAB), APC-PRAC-024.c (Local)
+
+// This code has not been compiled.
+// If you find any issues, please create a new issue on GitHub regarding them.
+// Go to this link to create a new issue: https://github.com/notamitgamer/bsc/issues
+
+#include&lt;stdio.h&gt; 
+int main() {
+	int n, i, j;
+	printf(&quot;Enter the n : &quot;);
+	scanf(&quot;%d&quot;, &amp;n);
+	for(i = 1; i &lt;= n; i++) {
+		for(j = i; j &gt;= 1; j--) {
+			printf(&quot;%d    &quot;, j);
+		}
+		printf(&quot;\n&quot;);
+	}
+	return 0;
+}
+</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">APC-PRAC-025.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-025.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-APC-PRAC-025_c', 'APC-PRAC-025.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-APC-PRAC-025_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-025.c">
+                                            <pre><code class="language-c">/*
+Pattern:
+	5    4    3    2    1
+	5    4    3    2
+	5    4    3
+	5    4
+	5
+*/
+/* Author = Amit Dutta, Date - 13th November, 2025 */
+// File Name - amit1311202502.c (LAB), APC-PRAC-025.c (Local)
+
+// This code has not been compiled.
+// If you find any issues, please create a new issue on GitHub regarding them.
+// Go to this link to create a new issue: https://github.com/notamitgamer/bsc/issues
+
+#include&lt;stdio.h&gt; 
+int main() {
+	int n, i, j;
+	printf(&quot;Enter the n : &quot;);
+	scanf(&quot;%d&quot;, &amp;n);
+	for(i = 1; i &lt;= n; i++) {
+		for(j = n; j &gt;= i; j--) {
+			printf(&quot;%d    &quot;, j);
+		}
+		printf(&quot;\n&quot;);
+	}
+	return 0;
+}
+</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">APC-PRAC-026.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-026.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-APC-PRAC-026_c', 'APC-PRAC-026.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-APC-PRAC-026_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-026.c">
+                                            <pre><code class="language-c">/*
+Pattern:
+	5
+	5    4
+	5    4    3
+	5    4    3    2
+	5    4    3    2    1
+*/
+/* Author = Amit Dutta, Date - 13th November, 2025 */
+// File Name - amit1311202503.c (LAB), APC-PRAC-026.c (Local)
+
+// This code has not been compiled.
+// If you find any issues, please create a new issue on GitHub regarding them.
+// Go to this link to create a new issue: https://github.com/notamitgamer/bsc/issues
+
+#include&lt;stdio.h&gt; 
+int main() {
+	int n, i, j;
+	printf(&quot;Enter the n : &quot;);
+	scanf(&quot;%d&quot;, &amp;n);
+	for(i = n; i &gt;= 1; i--) {
+		for(j = n; j &gt;= i; j--) {
+			printf(&quot;%d    &quot;, j);
+		}
+		printf(&quot;\n&quot;);
+	}
+	return 0;
+}
+</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">APC-PRAC-027.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-027.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-APC-PRAC-027_c', 'APC-PRAC-027.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-APC-PRAC-027_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-027.c">
+                                            <pre><code class="language-c">/*
+Pattern:
+	1    2    3    4    5
+	2    3    4    5
+	3    4    5
+	4    5
+	5
+*/
+/* Author = Amit Dutta, Date - 13th November, 2025 */
+// File Name - amit1311202504.c (LAB), APC-PRAC-027.c (Local)
+
+// This code has not been compiled.
+// If you find any issues, please create a new issue on GitHub regarding them.
+// Go to this link to create a new issue: https://github.com/notamitgamer/bsc/issues
+
+#include&lt;stdio.h&gt; 
+int main() {
+	int n, i, j;
+	printf(&quot;Enter the n : &quot;);
+	scanf(&quot;%d&quot;, &amp;n);
+	for(i = 1; i &lt;= n; i++) {
+		for(j = i; j &lt;= n; j++) {
+			printf(&quot;%d    &quot;, j);
+		}
+		printf(&quot;\n&quot;);
+	}
+	return 0;
+}
+</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">APC-PRAC-028.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-028.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-APC-PRAC-028_c', 'APC-PRAC-028.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-APC-PRAC-028_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-028.c">
+                                            <pre><code class="language-c">/*
+Pattern:
+	1
+	2       3
+	4       5       6
+	7       8       9       10
+	11      12      13      14      15
+*/
+/* Author = Amit Dutta, Date - 13th November, 2025 */
+// File Name - amit1311202505.c (LAB), APC-PRAC-028.c (Local)
+
+// This code has not been compiled.
+// If you find any issues, please create a new issue on GitHub regarding them.
+// Go to this link to create a new issue: https://github.com/notamitgamer/bsc/issues
+
+#include&lt;stdio.h&gt; 
+int main() {
+	int n, i, j, temp = 1;
+	printf(&quot;Enter the n : &quot;);
+	scanf(&quot;%d&quot;, &amp;n);
+	for(i = 1; i &lt;= n; i++) {
+		for(j = 1; j &lt;= i; j++) {
+			printf(&quot;%d\t&quot;, temp);
+			temp++;
+		}
+		printf(&quot;\n&quot;);
+	}
+	return 0;
+}
+</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">APC-PRAC-029.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-029.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-APC-PRAC-029_c', 'APC-PRAC-029.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-APC-PRAC-029_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-029.c">
+                                            <pre><code class="language-c">/*
+Pattern:
+	1
+	1   0
+	1   0   1
+	1   0   1   0
+	1   0   1   0   1
+*/
+/* Author = Amit Dutta, Date - 13th November, 2025 */
+// File Name - amit1311202506.c (LAB), APC-PRAC-029.c (Local)
+
+// This code has not been compiled.
+// If you find any issues, please create a new issue on GitHub regarding them.
+// Go to this link to create a new issue: https://github.com/notamitgamer/bsc/issues
+
+#include&lt;stdio.h&gt; 
+int main() {
+	int n, i, j;
+	printf(&quot;Enter the n : &quot;);
+	scanf(&quot;%d&quot;, &amp;n);
+	for(i = 1; i &lt;= n; i++) {
+		for(j = 1; j &lt;= i; j++) {
+			if(j % 2 == 0) printf(&quot;0   &quot;);
+			else printf(&quot;1   &quot;);
+		}
+		printf(&quot;\n&quot;);
+	}
+	return 0;
+}
+</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">APC-PRAC-030.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-030.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-APC-PRAC-030_c', 'APC-PRAC-030.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-APC-PRAC-030_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-030.c">
+                                            <pre><code class="language-c">/*
+Pattern:
+	#
+	@   @
+	#   #   #
+	@   @   @   @
+	#   #   #   #   #
+*/
+/* Author = Amit Dutta, Date - 13th November, 2025 */
+// File Name - amit1311202507.c (LAB), APC-PRAC-030.c (Local)
+
+// This code has not been compiled.
+// If you find any issues, please create a new issue on GitHub regarding them.
+// Go to this link to create a new issue: https://github.com/notamitgamer/bsc/issues
+
+#include&lt;stdio.h&gt; 
+int main() {
+	int n, i, j;
+	printf(&quot;Enter the n : &quot;);
+	scanf(&quot;%d&quot;, &amp;n);
+	for(i = 1; i &lt;= n; i++) {
+		for(j = 1; j &lt;= i; j++) {
+			if(i % 2 == 0) printf(&quot;@   &quot;);
+			else printf(&quot;#   &quot;);
+		}
+		printf(&quot;\n&quot;);
+	}
+	return 0;
+}
+</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">APC-PRAC-031.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-031.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-APC-PRAC-031_c', 'APC-PRAC-031.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-APC-PRAC-031_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-031.c">
+                                            <pre><code class="language-c">/*
+Pattern:
+	1       2       3       4       5
+	6       7       8       9
+	10      11      12
+	13      14
+	15
+*/
+/* Author = Amit Dutta, Date - 13th November, 2025 */
+// File Name - amit1311202508.c (LAB), APC-PRAC-031.c (Local)
+
+// This code has not been compiled.
+// If you find any issues, please create a new issue on GitHub regarding them.
+// Go to this link to create a new issue: https://github.com/notamitgamer/bsc/issues
+
+#include&lt;stdio.h&gt; 
+int main() {
+	int n, i, j, temp = 1;
+	printf(&quot;Enter the n : &quot;);
+	scanf(&quot;%d&quot;, &amp;n);
+	for(i = n; i &gt;= 1; i--) {
+		for(j = 1; j &lt;= i; j++) {
+			printf(&quot;%d\t&quot;, temp);
+			temp++;
+		}
+		printf(&quot;\n&quot;);
+	}
+	return 0;
+}
+</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">APC-PRAC-032.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-032.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-APC-PRAC-032_c', 'APC-PRAC-032.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-APC-PRAC-032_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-032.c">
+                                            <pre><code class="language-c">/*
+Pattern:
+	A
+	B       B
+	C       C       C
+	D       D       D       D
+	E       E       E       E       E
+*/
+/* Author = Amit Dutta, Date - 13th November, 2025 */
+// File Name - amit1311202509.c (LAB), APC-PRAC-032.c (Local)
+
+// This code has not been compiled.
+// If you find any issues, please create a new issue on GitHub regarding them.
+// Go to this link to create a new issue: https://github.com/notamitgamer/bsc/issues
+
+#include&lt;stdio.h&gt; 
+int main() {
+	int n, i, j; char temp = &#x27;A&#x27;;
+	printf(&quot;Enter the n : &quot;);
+	scanf(&quot;%d&quot;, &amp;n);
+	for(i = 1; i &lt;= n; i++) {
+		for(j = 1; j &lt;= i; j++) {
+			printf(&quot;%c\t&quot;, temp);
+		}
+		temp++;
+		printf(&quot;\n&quot;);
+	}
+	return 0;
+}
+</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">APC-PRAC-033.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-033.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-APC-PRAC-033_c', 'APC-PRAC-033.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-APC-PRAC-033_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-033.c">
+                                            <pre><code class="language-c">/* Print the factorial of the digits off a number */
+/* Auhtor: Amit Dutta, Date: 20-11-2025 */
+
+// This code has not been compiled.
+// If you find any issues, please create a new issue on GitHub regarding them.
+// Go to this link to create a new issue: https://github.com/notamitgamer/bsc/issues
+
+#include &lt;stdio.h&gt;
+
+int factorial(int);
+
+int factorial(int n)
+{
+    int i, fact = 1;
+    for (i = 1; i &lt;= n; i++)
+        fact *= i;
+    return fact;
+}
+
+int main()
+{
+    int n, temp;
+    printf(&quot;Enter the number: &quot;);
+    scanf(&quot;%d&quot;, &amp;n);
+    if (n &lt; 0)
+    {
+        printf(&quot;Only non-negetive number is allowed.&quot;);
+        return 1;
+    }
+    temp = n;
+    while (temp &gt; 0)
+    {
+        printf(&quot;\nFactorial of %d: %d&quot;, temp % 10, factorial(temp % 10));
+        temp /= 10;
+    }
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">APC-PRAC-034.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-034.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-APC-PRAC-034_c', 'APC-PRAC-034.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-APC-PRAC-034_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-034.c">
+                                            <pre><code class="language-c">/* Take a Range as input from user and print the prime number between it. */
+/* Auhtor: Amit Dutta, Date: 20-11-2025 */
+
+// This code has not been compiled.
+// If you find any issues, please create a new issue on GitHub regarding them.
+// Go to this link to create a new issue: https://github.com/notamitgamer/bsc/issues
+
+#include &lt;stdio.h&gt;
+#include &lt;math.h&gt;
+
+int isPrime(int);
+
+int isPrime(int n)
+{
+    if (n &lt;= 1)
+        return 0;
+    if (n == 2)
+        return 1;
+    if (n % 2 == 0)
+        return 0;
+    int temp = (int)sqrt(n), i;
+    for (i = 3; i &lt;= temp; i += 2)
+        if (n % i == 0)
+            return 0;
+    return 1;
+}
+
+int main()
+{
+    int lb, ub, i;
+    printf(&quot;Enter the lower bound and the upper bound: &quot;);
+    scanf(&quot;%d %d&quot;, &amp;lb, &amp;ub);
+    printf(&quot;\nPrime numbers between %d and %d:  &quot;, lb, ub);
+    for (i = lb; i &lt;= ub; i++)
+        if (isPrime(i))
+            printf(&quot;%d  &quot;, i);
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">APC-PRAC-035.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-035.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-APC-PRAC-035_c', 'APC-PRAC-035.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-APC-PRAC-035_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-035.c">
+                                            <pre><code class="language-c">/* Print all the 3 and 4 digit palindrome number. */
+/* Auhtor: Amit Dutta, Date: 20-11-2025 */
+
+// This code has not been compiled.
+// If you find any issues, please create a new issue on GitHub regarding them.
+// Go to this link to create a new issue: https://github.com/notamitgamer/bsc/issues
+
+#include &lt;stdio.h&gt;
+
+int palindromeCheck(int);
+
+int palindromeCheck(int n)
+{
+    int temp = n, rev = 0;
+    while (temp &gt; 0)
+    {
+        rev = (rev * 10) + (temp % 10);
+        temp /= 10;
+    }
+    if (rev == n)
+        return 1;
+    else
+        return 0;
+}
+
+int main()
+{
+    int i;
+    printf(&quot;Palindrome number of 3 and 4 digits:  &quot;);
+    for (i = 100; i &lt;= 9999; i++)
+        if (palindromeCheck(i))
+            printf(&quot;%d  &quot;, i);
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">APC-PRAC-036.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-036.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-APC-PRAC-036_c', 'APC-PRAC-036.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-APC-PRAC-036_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-036.c">
+                                            <pre><code class="language-c">/* Check krishnamurty number. */
+/* Auhtor: Amit Dutta, Date: 20-11-2025 */
+
+// This code has not been compiled.
+// If you find any issues, please create a new issue on GitHub regarding them.
+// Go to this link to create a new issue: https://github.com/notamitgamer/bsc/issues
+
+#include &lt;stdio.h&gt;
+
+int factorial(int);
+int checkKrishnamurty(int);
+
+int factorial(int n)
+{
+    int i, fact = 1;
+    for (i = 1; i &lt;= n; i++)
+        fact *= i;
+    return fact;
+}
+
+int checkKrishnamurty(int n)
+{
+    int temp1 = n, temp2 = 0;
+    while (temp1 &gt; 0)
+    {
+        temp2 += factorial(temp1 % 10);
+        temp1 /= 10;
+    }
+    if (temp2 == n)
+        return 1;
+    else
+        return 0;
+}
+
+int main()
+{
+    int n;
+    printf(&quot;Enter the number: &quot;);
+    scanf(&quot;%d&quot;, &amp;n);
+    if (checkKrishnamurty(n))
+        printf(&quot;\nInput %d is a Krishnamurty number.&quot;, n);
+    else
+        printf(&quot;\ninput %d is not a Krishnamurty number.&quot;, n);
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">APC-PRAC-037.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-037.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-APC-PRAC-037_c', 'APC-PRAC-037.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-APC-PRAC-037_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-037.c">
+                                            <pre><code class="language-c">/* Show all the armstrong number between a range. */
+/* Author: Amit Dutta, Date: 21-11-2025 */
+
+// This code has not been compiled.
+// If you find any issues, please create a new issue on GitHub regarding them.
+// Go to this link to create a new issue: https://github.com/notamitgamer/bsc/issues
+
+#include &lt;stdio.h&gt;
+#include &lt;math.h&gt;
+
+#define lowerBound 100
+#define upperBound 999
+
+int isArmstrongNumber(int);
+
+int isArmstrongNumber(int n)
+{
+    int temp = n, sum = 0, count = 0;
+    while (temp &gt; 0)
+    {
+        count++;
+        temp /= 10;
+    }
+    temp = n;
+    while (temp &gt; 0)
+    {
+        sum += (int)pow(temp % 10, count);
+        temp /= 10;
+    }
+    return sum == n;
+}
+
+int main()
+{
+    int n, i, count = 0;
+    printf(&quot;Armstrong number between %d and %d are:  &quot;, lowerBound, upperBound);
+    for (i = lowerBound; i &lt;= upperBound; i++)
+        if (isArmstrongNumber(i))
+        {
+            printf(&quot;%d  &quot;, i);
+            count++;
+        }
+    printf(&quot;\n\nCount: %d\n&quot;, count);
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">APC-PRAC-038.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-038.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-APC-PRAC-038_c', 'APC-PRAC-038.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-APC-PRAC-038_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-038.c">
+                                            <pre><code class="language-c">/*
+Print all combinations of two two-digit numbers such that the sum of digits of both numbers is equal.
+Example: 23 and 41 → (2+3) = 5, (4+1) = 5.
+*/
+/* Author: Amit Dutta, Date: 21-11-2025 */
+
+// This code has not been compiled.
+// If you find any issues, please create a new issue on GitHub regarding them.
+// Go to this link to create a new issue: https://github.com/notamitgamer/bsc/issues
+
+#include &lt;stdio.h&gt;
+
+int main()
+{
+    printf(&quot;Combinations of two two-digit numbers such that the sum of digits of both numbers is equal:  &quot;);
+    int i, j, sum1, sum2, count = 0;
+    for (i = 10; i &lt;= 99; i++)
+    {
+        sum1 = (i % 10) + (i / 10);
+        for (j = i + 1; j &lt;= 99; j++)
+        {
+            sum2 = (j % 10) + (j / 10);
+            if (sum1 == sum2)
+            {
+                printf(&quot;(%d, %d)  &quot;, i, j);
+                count++;
+            }
+        }
+    }
+    printf(&quot;\nCount: %d\n&quot;, count);
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">APC-PRAC-039.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-039.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-APC-PRAC-039_c', 'APC-PRAC-039.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-APC-PRAC-039_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-039.c">
+                                            <pre><code class="language-c">/*
+Write a C program to print all unique combinations of three numbers (a, b, c) such that:
+1 ≤ a, b, c ≤ 30 and a² + b² = c² (Pythagorean triplets)
+*/
+/* Author: Amit Dutta, Date: 21-11-2025 */
+
+// This code has not been compiled.
+// If you find any issues, please create a new issue on GitHub regarding them.
+// Go to this link to create a new issue: https://github.com/notamitgamer/bsc/issues
+
+#include &lt;stdio.h&gt;
+
+int main()
+{
+    printf(&quot;a² + b² = c² :  &quot;);
+    int i, j, k, sq1, sq2, count = 0;
+    for (i = 1; i &lt;= 30; i++)
+    {
+        sq1 = i * i;
+        for (j = i + 1; j &lt;= 30; j++)
+        {
+            sq2 = j * j;
+            for (k = j + 1; k &lt;= 30; k++)
+            {
+                if (sq1 + sq2 == k * k)
+                {
+                    printf(&quot;(%d, %d, %d)  &quot;, i, j, k);
+                    count++;
+                }
+            }
+        }
+    }
+    printf(&quot;\n\nCount: %d\n&quot;, count);
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">APC-PRAC-040.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-040.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-APC-PRAC-040_c', 'APC-PRAC-040.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-APC-PRAC-040_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-040.c">
+                                            <pre><code class="language-c">/*
+Write a C program to count how many numbers between 100 and 999 have all distinct digits (e.g., 123, 709, 981).
+*/
+/* Author: Amit Dutta, Date: 21-11-2025 */
+
+// This code has not been compiled.
+// If you find any issues, please create a new issue on GitHub regarding them.
+// Go to this link to create a new issue: https://github.com/notamitgamer/bsc/issues
+
+#include &lt;stdio.h&gt;
+
+int main()
+{
+    int i, count = 0, n1, n2, n3;
+    printf(&quot;Distinct numbers between 100 and 999: &quot;);
+    for (i = 100; i &lt;= 999; i++)
+    {
+        n1 = i / 100;
+        n2 = (i % 100) / 10;
+        n3 = i % 10;
+        if (n1 != n2 &amp;&amp; n2 != n3 &amp;&amp; n1 != n3)
+        {
+            printf(&quot;%d  &quot;, i);
+            count++;
+        }
+    }
+    printf(&quot;\nCount: %d\n&quot;, count);
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">APC-PRAC-041.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-041.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-APC-PRAC-041_c', 'APC-PRAC-041.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-APC-PRAC-041_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-PRAC-041.c">
+                                            <pre><code class="language-c">/*
+Write a C program to find and print all twin prime pairs between 1 and n using nested loops.
+(Twin primes are prime numbers having a difference of 2, like 11 and 13)
+*/
+/* Author: Amit Dutta, Date: 21-11-2025 */
+
+// This code has not been compiled.
+// If you find any issues, please create a new issue on GitHub regarding them.
+// Go to this link to create a new issue: https://github.com/notamitgamer/bsc/issues
+
+#include &lt;stdio.h&gt;
+#include &lt;math.h&gt;
+
+int isPrime(int n)
+{
+    if (n &lt; 2)
+        return 0;
+    if (n == 2)
+        return 1;
+    if (n % 2 == 0)
+        return 0;
+    int i, temp = (int)sqrt(n);
+    for (i = 3; i &lt;= temp; i += 2)
+        if (n % i == 0)
+            return 0;
+    return 1;
+}
+
+int main()
+{
+    int n, i, count = 0;
+    printf(&quot;enter the n: &quot;);
+    scanf(&quot;%d&quot;, &amp;n);
+    printf(&quot;\nAll the twin numbers:  &quot;);
+    for (i = 1; i &lt;= n - 2; i++)
+    {
+        if (isPrime(i))
+        {
+            if (isPrime(i + 2))
+            {
+                printf(&quot;(%d, %d)  &quot;, i, i + 2);
+                count++;
+            }
+        }
+    }
+    printf(&quot;\nCount; %d&quot;, count);
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">APC-S-001.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-S-001.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-APC-S-001_c', 'APC-S-001.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-APC-S-001_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-S-001.c">
+                                            <pre><code class="language-c">#include&lt;stdio.h&gt;
+int main() {
+	int a = 9, b = 4, c;
+	c = a + b;
+	printf(&quot;A + B = %d\n&quot;, c);
+	c = a / b;
+	printf(&quot;A / B = %d\n&quot;, c);
+	c = a % b;
+	printf(&quot;A %% B = %d\n&quot;, c);
+	return 0;
+}
+</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">APC-S-002.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-S-002.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-APC-S-002_c', 'APC-S-002.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-APC-S-002_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-S-002.c">
+                                            <pre><code class="language-c">#include&lt;stdio.h&gt;
+int main() {
+	int a = 5, b = 5, c = 10;
+	printf(&quot;a = b = %d\n&quot;, a == b);
+	printf(&quot;a &gt; b = %d\n&quot;, a &gt; b);
+	printf(&quot;a &lt; b = %d\n&quot;, a &lt; b);
+	return 0;
+}
+</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">APC-S-003.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-S-003.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-APC-S-003_c', 'APC-S-003.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-APC-S-003_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-S-003.c">
+                                            <pre><code class="language-c">#include &lt;stdio.h&gt;
+int main() {
+    int a = 5, b = 5, c = 10, result;
+
+    result = (a == b) &amp;&amp; (c &gt; b);
+    printf(&quot;Result is %d\n&quot;, result);
+
+    result = (a == b) &amp;&amp; (c &lt; b);
+    printf(&quot;Result is %d\n&quot;, result);
+
+    result = (a != b) || (c &lt; b);
+    printf(&quot;Result is %d\n&quot;, result);
+
+    result = (a != b) || (c &lt; b);
+    printf(&quot;Result is %d\n&quot;, result);
+
+    result = !(a != b);
+    printf(&quot;Result is %d\n&quot;, result);
+
+    result = !(a == b);
+    printf(&quot;Result is %d\n&quot;, result);
+
+    return 0;
+}
+</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">APC-S-004.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-S-004.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-APC-S-004_c', 'APC-S-004.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-APC-S-004_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-S-004.c">
+                                            <pre><code class="language-c">/* Program to print first 10 natural numbers using while loop. */
+/* Author - Amit Dutta, Date - 29th October, 2025 */
+
+/* 
+ * Compiler Note: This source code is specifically designed for compilation
+ * and execution within the ** Turbo C ** environment.
+ *
+ * Testing Disclaimer: Due to a lack of access to the required Turbo C
+ * compiler software, this code has not been formally compiled or tested.
+ */
+
+#include &lt;stdio.h&gt;
+#include &lt;conio.h&gt;
+
+void main()
+{
+    clrscr();
+    int x;
+    x = 1;
+    while (x &lt;= 10)
+    {
+        printf(&quot;%d  &quot;, x);
+        x++;
+    }
+    getch();
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">APC-S-005.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-S-005.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-APC-S-005_c', 'APC-S-005.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-APC-S-005_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-S-005.c">
+                                            <pre><code class="language-c">/* Write to reverse a number. */
+/* Author - Amit Dutta, Date - 29th October, 2025 */
+
+/*
+ * Compiler Note: This source code is specifically designed for compilation
+ * and execution within the ** Turbo C ** environment.
+ *
+ * Testing Disclaimer: Due to a lack of access to the required Turbo C
+ * compiler software, this code has not been formally compiled or tested.
+ */
+
+#include &lt;stdio.h&gt;
+#include &lt;conio.h&gt;
+
+void main()
+{
+    clrscr();
+    int n, reverse = 0, rem;
+    printf(&quot;Enter the numner : &quot;);
+    scanf(&quot;%d&quot;, &amp;n);
+    while (n != 0)
+    {
+        rem = n % 10;
+        reverse = reverse * 10 + rem;
+        n /= 10;
+    }
+    printf(&quot;Reversed Number : %d&quot;, reverse);
+    getch();
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">APC-S-006.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-S-006.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-APC-S-006_c', 'APC-S-006.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-APC-S-006_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-S-006.c">
+                                            <pre><code class="language-c">/* Write a program to print first 10 multiple of 5 */
+/* Author - Amit Dutta, Date - 29th October, 2025 */
+
+/*
+ * Compiler Note: This source code is specifically designed for compilation
+ * and execution within the ** Turbo C ** environment.
+ *
+ * Testing Disclaimer: Due to a lack of access to the required Turbo C
+ * compiler software, this code has not been formally compiled or tested.
+ */
+
+#include &lt;stdio.h&gt;
+#include &lt;conio.h&gt;
+
+void main()
+{
+    clrscr();
+    int a = 5, i = 1, res;
+    while (i &lt;= 10)
+    {
+        res = a * i;
+        printf(&quot;%d * %d = %d\n&quot;, a, i, res);
+        i++;
+    }
+    getch();
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">APC-S-007.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-S-007.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-APC-S-007_c', 'APC-S-007.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-APC-S-007_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-S-007.c">
+                                            <pre><code class="language-c">/* Write a program the sum of first 10 natural numbers. */
+/* Author - Amit Dutta, Date - 29th October, 2025 */
+
+/*
+ * Compiler Note: This source code is specifically designed for compilation
+ * and execution within the ** Turbo C ** environment.
+ *
+ * Testing Disclaimer: Due to a lack of access to the required Turbo C
+ * compiler software, this code has not been formally compiled or tested.
+ */
+
+#include &lt;stdio.h&gt;
+#include &lt;conio.h&gt;
+
+void main()
+{
+    clrscr();
+    int i, sum = 0;
+    for (i = 1; i &lt;= 10; i++)
+    {
+        sum += i;
+    }
+    printf(&quot;\nSum of the first natural number : %d&quot;, sum);
+    getch();
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">APC-S-008.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-S-008.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-APC-S-008_c', 'APC-S-008.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-APC-S-008_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-S-008.c">
+                                            <pre><code class="language-c">/* Write a program to print the sum of two matrix as input given by the user. */
+/* Author: Amit Dutta, Date: 18-11-2025 */
+
+#include &lt;stdio.h&gt;
+
+int main()
+{
+    int rows, cols, i, j;
+    printf(&quot;Enter the number of rows and columns: &quot;);
+    scanf(&quot;%d %d&quot;, &amp;rows, &amp;cols);
+
+    int a[rows][cols], b[rows][cols], c[rows][cols];
+
+    printf(&quot;Enter the elements of matrix A (%d x %d): \n&quot;, rows, cols);
+    for (i = 0; i &lt; rows; i++)
+        for (j = 0; j &lt; cols; j++)
+        {
+            printf(&quot;Position %d%d: &quot;, i, j);
+            scanf(&quot;%d&quot;, &amp;a[i][j]);
+        }
+    printf(&quot;\nMatrix A: \n&quot;);
+    for (i = 0; i &lt; rows; i++)
+    {
+        for (j = 0; j &lt; cols; j++)
+            printf(&quot;%d  &quot;, a[i][j]);
+        printf(&quot;\n&quot;);
+    }
+
+    printf(&quot;\nEnter the elements of matrix B(%d x %d): \n&quot;, rows, cols);
+    for (i = 0; i &lt; rows; i++)
+        for (j = 0; j &lt; cols; j++)
+        {
+            printf(&quot;Position %d%d: &quot;, i, j);
+            scanf(&quot;%d&quot;, &amp;b[i][j]);
+        }
+    printf(&quot;\nMatrix B: \n&quot;);
+    for (i = 0; i &lt; rows; i++)
+    {
+        for (j = 0; j &lt; cols; j++)
+            printf(&quot;%d  &quot;, b[i][j]);
+        printf(&quot;\n&quot;);
+    }
+
+    for (i = 0; i &lt; rows; i++)
+        for (j = 0; j &lt; cols; j++)
+            c[i][j] = a[i][j] + b[i][j];
+
+    printf(&quot;\nResult Matrix: \n&quot;);
+    for (i = 0; i &lt; rows; i++)
+    {
+        for (j = 0; j &lt; cols; j++)
+            printf(&quot;%d  &quot;, c[i][j]);
+        printf(&quot;\n&quot;);
+    }
+
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">APC-S-009.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-S-009.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-APC-S-009_c', 'APC-S-009.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-APC-S-009_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-S-009.c">
+                                            <pre><code class="language-c">/* Write a program to find the upper and lower triangular matrix. */
+/* Author: Amit Dutta, Date: 18-11-2025 */
+
+#include &lt;stdio.h&gt;
+
+int main()
+{
+    int i, j, rows, cols;
+    printf(&quot;\nEnter the number of rows and columns : &quot;);
+    scanf(&quot;%d %d&quot;, &amp;rows, &amp;cols);
+
+    if (rows != cols)
+    {
+        printf(&quot;Triangular matrix definitions only apply to square matrices (rows == columns).\n&quot;);
+        return 1;
+    }
+
+    int matrix[rows][cols];
+
+    printf(&quot;Enter the elements of matrix (%d x %d): \n&quot;, rows, cols);
+    for (i = 0; i &lt; rows; i++)
+        for (j = 0; j &lt; cols; j++)
+        {
+            printf(&quot;Position %d%d: &quot;, i, j);
+            scanf(&quot;%d&quot;, &amp;matrix[i][j]);
+        }
+    printf(&quot;\nMatrix: \n&quot;);
+    for (i = 0; i &lt; rows; i++)
+    {
+        for (j = 0; j &lt; cols; j++)
+            printf(&quot;%d  &quot;, matrix[i][j]);
+        printf(&quot;\n&quot;);
+    }
+
+    printf(&quot;\nUpper triangular of the Matrix: \n&quot;);
+    for (i = 0; i &lt; rows; i++)
+    {
+        for (j = 0; j &lt; cols; j++)
+        {
+            if (j &gt;= i)
+                printf(&quot;%d  &quot;, matrix[i][j]);
+            else
+                printf(&quot;~  &quot;);
+        }
+        printf(&quot;\n&quot;);
+    }
+
+    printf(&quot;\nLower triangular of the Matrix: \n&quot;);
+    for (i = 0; i &lt; rows; i++)
+    {
+        for (j = 0; j &lt; cols; j++)
+        {
+            if (j &lt;= i)
+                printf(&quot;%d  &quot;, matrix[i][j]);
+            else
+                printf(&quot;~  &quot;);
+        }
+        printf(&quot;\n&quot;);
+    }
+
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">APC-S-010.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-S-010.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-APC-S-010_c', 'APC-S-010.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-APC-S-010_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-S-010.c">
+                                            <pre><code class="language-c">/* Write a program to input a new element at a specific position of an array.
+    a[] = {4, 5, 2, 10, 6, 9, 8}, newItem = 7, position = 3
+*/
+/* Author: Amit Dutta, Date: 18-11-2025 */
+
+#include &lt;stdio.h&gt;
+
+int main()
+{
+    int a[8] = {4, 5, 2, 10, 6, 9, 8};
+    int i;
+
+    printf(&quot;Elemnts of the array:  &quot;);
+    for (i = 0; i &lt;= 6; i++)
+        printf(&quot;%d  &quot;, a[i]);
+
+    printf(&quot;\nMethod 1:  &quot;);
+    for (i = 7; i &gt;= 4; i--)
+        a[i] = a[i - 1];
+    a[3] = 7;
+    for (i = 0; i &lt;= 7; i++)
+        printf(&quot;%d  &quot;, a[i]);
+
+    // another method
+    printf(&quot;\nMethod 2:  &quot;);
+    int b[8] = {4, 5, 2, 10, 6, 9, 8};
+    int temp1 = 7;
+    for (i = 3; i &lt;= 7; i++)
+    {
+        int temp2 = b[i];
+        b[i] = temp1;
+        temp1 = temp2;
+    }
+    for (i = 0; i &lt;= 7; i++)
+        printf(&quot;%d  &quot;, b[i]);
+
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">APC-S-011.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-S-011.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-APC-S-011_c', 'APC-S-011.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-APC-S-011_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-S-011.c">
+                                            <pre><code class="language-c">/* Linear search */
+/* Author: Amit Dutta, Date: 19-11-2025 */
+
+#include &lt;stdio.h&gt;
+
+int main()
+{
+    int elementCount, i, keyElement;
+
+    printf(&quot;Enter the number of element you want to add: &quot;);
+    scanf(&quot;%d&quot;, &amp;elementCount);
+
+    int elements[elementCount];
+
+    for (i = 0; i &lt; elementCount; i++)
+    {
+        printf(&quot;Enter Element %d: &quot;, i + 1);
+        scanf(&quot;%d&quot;, &amp;elements[i]);
+    }
+
+    printf(&quot;\nEnter the Key Element you want to search: &quot;);
+    scanf(&quot;%d&quot;, &amp;keyElement);
+    for (i = 0; i &lt; elementCount; i++)
+        if (elements[i] == keyElement)
+        {
+            printf(&quot;\nKey Element %d is found in %d position.&quot;, keyElement, i);
+            return 0;
+        }
+    printf(&quot;\nKey Element %d is not found.&quot;, keyElement);
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">APC-S-012.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-S-012.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-APC-S-012_c', 'APC-S-012.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-APC-S-012_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-S-012.c">
+                                            <pre><code class="language-c">/* Write a program to check if a matrix is a sparx matrix. */
+/* Author: Amit Dutta, Date: 19-11-2025 */
+
+#include &lt;stdio.h&gt;
+
+int main()
+{
+    int i, j, row, col, count = 0;
+
+    printf(&quot;Enter the number of rows and columns in the matrix: &quot;);
+    scanf(&quot;%d %d&quot;, &amp;row, &amp;col);
+
+    int matrix[row][col];
+
+    for (i = 0; i &lt; row; i++)
+        for (j = 0; j &lt; col; j++)
+        {
+            printf(&quot;Postion %d%d: &quot;, i, j);
+            scanf(&quot;%d&quot;, &amp;matrix[i][j]);
+            if (matrix[i][j] == 0)
+                count++;
+        }
+
+    printf(&quot;\nEntered Matrix: \n&quot;);
+    for (i = 0; i &lt; row; i++)
+    {
+        for (j = 0; j &lt; col; j++)
+            printf(&quot;%d  &quot;, matrix[i][j]);
+        printf(&quot;\n&quot;);
+    }
+
+    if (count &gt; (row * col) / 2)
+        printf(&quot;\nEntered matrix is a Sparx Matrix.&quot;);
+    else
+        printf(&quot;\nEntered matrix is not a Sparx Matrix&quot;);
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">APC-S-013.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-S-013.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-APC-S-013_c', 'APC-S-013.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-APC-S-013_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-S-013.c">
+                                            <pre><code class="language-c">/* Write a fuction to calculate the average of an array */
+/* Author: Amit Dutta, Date: 26-11-2025 */
+
+#include &lt;stdio.h&gt;
+
+double average(int []);
+
+int main()
+{
+    int marks[10], i;
+    printf(&quot;\nEnter 10 numbers: \n&quot;);
+    for (i = 0; i &lt;= 9; i++)
+    {
+        printf(&quot;Enter number %d: &quot;, i + 1);
+        scanf(&quot;%d&quot;, &amp;marks[i]);
+    }
+    printf(&quot;\nAverage = %g&quot;, average(marks));
+    return 0;
+}
+
+double average(int marks[10])
+{
+    int sum = 0;
+    for (int i = 0; i &lt;= 9; i++)
+        sum += marks[i];
+    return sum / 10.0;
+}
+</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">APC-SPS-001.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-SPS-001.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-APC-SPS-001_c', 'APC-SPS-001.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-APC-SPS-001_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-SPS-001.c">
+                                            <pre><code class="language-c">// WAP to perform arithmatic operation on integer data
+
+#include&lt;stdio.h&gt;
+int main() {
+	int a, b, sum, sub, multi, div, mod;
+	printf(&quot;Enter 1st number : &quot;);
+	scanf(&quot;%d&quot;, &amp;a);
+	printf(&quot;Enter 2nd number : &quot;);
+	scanf(&quot;%d&quot;, &amp;b);
+	sum = a + b;
+	sub = a - b;
+	multi = a * b;
+	div = a / b;
+	mod = a % b;
+	printf(&quot;\nSum = %d&quot;, sum);
+	printf(&quot;\nSubtraction = %d&quot;, sub);
+	printf(&quot;\nMultiplication = %d&quot;, multi);
+	printf(&quot;\nDivision = %d&quot;, div);
+	printf(&quot;\nModulas = %d&quot;, div);
+	return 0;
+}
+</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">APC-SPS-002.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-SPS-002.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-APC-SPS-002_c', 'APC-SPS-002.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-APC-SPS-002_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-SPS-002.c">
+                                            <pre><code class="language-c">/* WAP to swap two integers. Display both numbers
+before and after swap */
+
+#include&lt;stdio.h&gt;
+int main() {
+	int a = 10, b = 20, temp;
+	printf(&quot;Before swap A : %d, B : %d&quot;, a, b);
+	temp = a;
+	a = b;
+	b = temp;
+	printf(&quot;\nAfter swap A : %d, B : %d&quot;, a, b);
+	return 0;
+}
+</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">APC-SPS-003.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-SPS-003.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-APC-SPS-003_c', 'APC-SPS-003.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-APC-SPS-003_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-SPS-003.c">
+                                            <pre><code class="language-c">/* Bitwise AND &#x27;&amp;&#x27; */
+
+#include&lt;stdio.h&gt;
+int main() {
+	unsigned int a = 4, b = 5, c = 6;
+	unsigned int x, y;
+	x = a &amp; b;
+	y = b &amp; c;
+	printf(&quot;x = %u y = %u&quot;, x, y);
+	return 0;
+}
+</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">APC-SPS-004.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-SPS-004.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-APC-SPS-004_c', 'APC-SPS-004.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-APC-SPS-004_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-SPS-004.c">
+                                            <pre><code class="language-c">#include&lt;stdio.h&gt;
+int main() {
+	int x = 25, y = 19, z;
+	z = x - y;
+	z = z &amp; x ;
+	printf(&quot;Z = %d&quot;, z);
+	return 0;
+}
+</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">APC-SPS-005.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-SPS-005.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-APC-SPS-005_c', 'APC-SPS-005.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-APC-SPS-005_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-SPS-005.c">
+                                            <pre><code class="language-c">/* Bitwise OR &#x27;|&#x27; */
+
+#include&lt;stdio.h&gt;
+int main() {
+	int x = 12, y = 14, z = 10, res;
+	x++;
+	z++;
+	x = x + y + z;
+	res = x | y;
+	z = res | z;
+	printf(&quot;x = %d y = %d z = %d res = %d&quot;, x, y, z, res);
+	return 0;
+}
+</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">APC-SPS-006.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-SPS-006.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-APC-SPS-006_c', 'APC-SPS-006.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-APC-SPS-006_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-SPS-006.c">
+                                            <pre><code class="language-c">/* Bitwise NOT &#x27;~&#x27; */
+
+#include&lt;stdio.h&gt;
+int main() {
+	int x = 12, y = 15, z = 21;
+	int res, res1, res2;
+	res = x &gt; 10;
+	res1 = ~res;
+	res2 = ~x;
+	printf(&quot;REs = %d, Res1 = %d, Res2 = %d&quot;, res, res1, res2);
+	return 0;
+}
+</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">APC-SPS-007.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-SPS-007.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-APC-SPS-007_c', 'APC-SPS-007.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-APC-SPS-007_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-SPS-007.c">
+                                            <pre><code class="language-c">/* WAP to check a number is even or odd using bitwise operator */
+
+#include&lt;stdio.h&gt;
+int main() {
+	int x, res = 1;
+	printf(&quot;Enter a number : &quot;);
+	scanf(&quot;%d&quot;, &amp;x);
+	res = res &amp; x;
+	if (res == 0) {
+		printf(&quot;\nInput %d is a even number.&quot;, x);
+	}
+	else {
+		printf(&quot;\nInput %d is a odd number.&quot;, x);
+	}
+	return 0;
+}
+</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">APC-SPS-008.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-SPS-008.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-APC-SPS-008_c', 'APC-SPS-008.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-APC-SPS-008_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/APC-SPS-008.c">
+                                            <pre><code class="language-c">/* WAP to calculate area of circle by accepting radius as input */
+/* Author : Amit Dutta, Date : 15th September, 2025 */
+
+#include&lt;stdio.h&gt;
+#include&lt;math.h&gt;
+int main() {
+	double r, area;
+	printf(&quot;Enter the radius of circle : &quot;);
+	scanf(&quot;%lf&quot;, &amp;r);
+	area = M_PI * r * r;
+	printf(&quot;\nArea : %lf&quot;, area);
+	return 0;
+}
+</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">P001.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P001.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-P001_c', 'P001.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-P001_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P001.c">
+                                            <pre><code class="language-c">//sample code
+// Author - Amit Dutta, Date - Unknown
+
+#include&lt;stdio.h&gt;
+int main() {
+	printf(&quot;Hello world&quot;);
+	return 0;
+}
+</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">P002.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P002.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-P002_c', 'P002.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-P002_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P002.c">
+                                            <pre><code class="language-c">//sample code with a new line charecter
+// Author - Amit Dutta, Date - Unknown
+
+#include&lt;stdio.h&gt;
+int main() {
+	printf(&quot;Hello\nworld&quot;);
+	return 0;
+}
+</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">P003.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P003.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-P003_c', 'P003.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-P003_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P003.c">
+                                            <pre><code class="language-c">//WAP to perform addtion and multiplication of two integer numbers
+// Author - Amit Dutta, Date - Unknown
+
+#include&lt;stdio.h&gt;
+int main() {
+	int a, b, sum, multi;
+	printf(&quot;Enter the 1st number : &quot;);
+	scanf(&quot;%d&quot;,&amp;a);
+	printf(&quot;Enter the 2nd number : &quot;);
+	scanf(&quot;%d&quot;,&amp;b);
+	sum = a + b;
+	multi = a * b;
+	printf(&quot;\nSum = %d&quot;
+		   &quot;\nMultiplication = %d&quot;,sum,multi);
+	return 0;
+}
+</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">P004.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P004.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-P004_c', 'P004.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-P004_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P004.c">
+                                            <pre><code class="language-c">/* WAP to find and display the value of given expression :
+((x+3)/4) - ((2x+4)/3) taking the value of x = 5 */
+// Author - Amit Dutta, Date - Unknown
+
+#include&lt;stdio.h&gt;
+int main() {
+	double x =5, result;
+	result = ((x + 3) / 4) - ((2 * x + 4) / 3);
+	printf(&quot;Result = %lf&quot;,result);
+	return 0;
+}
+</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">P005.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P005.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-P005_c', 'P005.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-P005_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P005.c">
+                                            <pre><code class="language-c">/* A person is paid Rs. 455 for each day he works and fined
+Rs. 150 for each day he remains absent. WAP to calculate his
+monthly income taking the number of days present as input. */
+// Author - Amit Dutta, Date - Unknown
+
+#include&lt;stdio.h&gt;
+int main() {
+	int daily_wage = 455, fine = 150, present, absent, income;
+	printf(&quot;No of days present : &quot;);
+	scanf(&quot;%d&quot;, &amp;present);
+	absent = 30 - present;
+	income = (present * 455) - (absent * 150);
+	printf(&quot;\nIncome : %d&quot;,income);
+	return 0;
+}
+</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">P006.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P006.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-P006_c', 'P006.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-P006_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P006.c">
+                                            <pre><code class="language-c">/* The normal temperature of human body
+is 98.6 Degree Fahrenheit. WAP to convert the temperature
+to Degree Celcius and display the output. */
+// Author - Amit Dutta, Date - Unknown
+
+#include&lt;stdio.h&gt;
+int main() {
+	double f = 98.6, c;
+	c = ((f - 32) * 5) / 9;
+	printf(&quot;Temperature in Celcius is : %lf&quot;,c);
+	return 0;
+}
+</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">P007.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P007.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-P007_c', 'P007.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-P007_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P007.c">
+                                            <pre><code class="language-c">/* A shopkeeper offers 10% discount on printed
+price of a digital camera. However a customer has
+to pay 6% GST on the remaining amount. WAP to
+calculate and display the amount to paid by the
+customer, taking the printed price as input. */
+// Author - Amit Dutta, Date - Unknown
+
+#include&lt;stdio.h&gt;
+int main() {
+	double mrp, final_price, temp;
+	printf(&quot;Enter the printed price : &quot;);
+	scanf(&quot;%lf&quot;, &amp;mrp);
+	temp = mrp * 0.90;
+	final_price = temp * 1.06;
+	printf(&quot;\nCustomer have to pay : %lf&quot;, final_price);
+	return 0;
+}
+</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">P008.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P008.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-P008_c', 'P008.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-P008_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P008.c">
+                                            <pre><code class="language-c">/* A shopkeeper offers 30% discount on purchasing an
+item whereas the other shopkeeper offers 2 successive
+discount of 20% and 10% for purchasing the same item.
+WAP to caompute and display the discounted price of the
+item by taking the price as input. */
+// Author - Amit Dutta, Date - Unknown
+
+#include&lt;stdio.h&gt;
+int main() {
+	double mrp, shop1, shop2, temp;
+	printf(&quot;Enter the price : &quot;);
+	scanf(&quot;%lf&quot;, &amp;mrp);
+	shop1 = mrp * 0.70;
+	temp = mrp * 0.80;
+	shop2 = temp * 0.90;
+	printf(&quot;\nShopkeeper 1 price : %lf&quot;
+			&quot;\nShopkeeper 2 price : %lf&quot;,shop1,shop2);
+	return 0;
+}
+</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">P009.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P009.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-P009_c', 'P009.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-P009_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P009.c">
+                                            <pre><code class="language-c">/* WAP to calculate gross and net salary
+by accepting basic salary as input.
+IMP :	DA = 30% of Basic Pay
+		HRA = 20% of Basic Pay
+		PF = 12.5% of Basic Pay
+ Gross Salary = Basic Pay + DA + HRA
+ Net Salary = Gross Salary - PF
+*/
+// Author - Amit Dutta, Date - Unknown
+
+#include&lt;stdio.h&gt;
+int main() {
+	double bs, da, hra, pf, gs, ns;
+	printf(&quot;Enter the Basic Salary : &quot;);
+	scanf(&quot;%lf&quot;, &amp;bs);
+	da = bs * 0.3;
+	hra = bs * 0.2;
+	pf = bs * 0.125;
+	gs = bs + da + hra;
+	ns = gs - pf;
+	printf(&quot;\nGross Salary : %lf&quot;
+		   &quot;\nNet Salary   : %lf&quot;, gs, ns);
+	return 0;
+}
+</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">P010.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P010.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-P010_c', 'P010.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-P010_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P010.c">
+                                            <pre><code class="language-c">/* WAP to find and display the difference
+between compound Interest and Simple Interest.
+Take principle amount as input.
+Hint :	si = (p * r * t) / 100
+		a = p * ((1 + (r / 100)) ^ t)
+		ci = a - p
+*/
+// Author - Amit Dutta, Date - Unknown
+
+#include&lt;stdio.h&gt;
+#include&lt;math.h&gt;
+int main() {
+	double p, r, t, si, a, ci, dif;
+	printf(&quot;Enter the principle amount, rate of interest, time in year : &quot;);
+	scanf(&quot;%lf %lf %lf&quot;, &amp;p, &amp;r, &amp;t);
+	si = (p * r * t) / 100;
+	a = p * pow((1 + (r / 100)), t);
+	ci = a - p;
+	dif = ci - si;
+	printf(&quot;\nSimple Interest     : %lf&quot;
+		   &quot;\nCompound Interest   : %lf&quot;
+		   &quot;\nInterest Difference : %lf&quot;, si, ci, dif);
+	return 0;
+}
+</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">P011.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P011.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-P011_c', 'P011.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-P011_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P011.c">
+                                            <pre><code class="language-c">/* The time period of a simple pendulam is
+given by the formula :
+	t = 2 * pi * square_root(l / g)
+WAP to calculate T take length(L) and gravity
+as input
+*/
+// Author - Amit Dutta, Date - Unknown
+
+#include&lt;stdio.h&gt;
+#include&lt;math.h&gt;
+int main() {
+	double l, g, t;
+	printf(&quot;Enter the Length and Gravity measures : &quot;);
+	scanf(&quot;%lf %lf&quot;, &amp;l, &amp;g);
+	t = 2 * M_PI * sqrt(l / g);
+	// using M_PI variable for PI value from math.h header file
+	printf(&quot;\nTime Period : %lf&quot;, t);
+	return 0;
+}
+</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">P012.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P012.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-P012_c', 'P012.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-P012_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P012.c">
+                                            <pre><code class="language-c">/* WAP to swap two integer variable without
+using third  variable */
+// using Approch Mode : simple, slow, time consuming
+// Author - Amit Dutta, Date - Unknown
+
+#include&lt;stdio.h&gt;
+int main() {
+	int a = 4, b = 6;
+	printf(&quot;Before Swap : A = %d, B = %d&quot;, a, b);
+	a = a + b;
+	b = a - b;
+	a = a - b;
+	printf(&quot;\nAfter Swap : A = %d, B = %d&quot;, a, b);
+	return 0;
+}
+</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">P013.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P013.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-P013_c', 'P013.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-P013_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P013.c">
+                                            <pre><code class="language-c">/* WAP to swap two integer variable without
+using third  variable */
+// using Approch Mode : complex, fast, less time consumimg
+// Author - Amit Dutta, Date - Unknown
+
+#include&lt;stdio.h&gt;
+#include&lt;math.h&gt;
+int main() {
+	int a = 4, b = 6;
+	printf(&quot;Before Swap : A = %d, B = %d&quot;, a, b);
+	a = a ^ b;
+	b = a ^ b;
+	a = a ^ b;
+	printf(&quot;\nAfter Swap : A = %d, B = %d&quot;, a, b);
+	return 0;
+}
+</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">P014.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P014.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-P014_c', 'P014.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-P014_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P014.c">
+                                            <pre><code class="language-c">/* WAP to accept the diagonal of
+square. Find and display the area and
+perimeter of the square. */
+// Author - Amit Dutta, Date - Unknown
+
+#include&lt;stdio.h&gt;
+#include&lt;math.h&gt;
+int main() {
+	double d, side, area, per;
+	printf(&quot;Enter the diagonal : &quot;);
+	scanf(&quot;%lf&quot;, &amp;d);
+	side =  d / sqrt (2);
+	area = side * side;
+	per = 4 * side;
+	printf(&quot;\nArea of the Square      : %lf&quot;
+		   &quot;\nPerimeter of the Square : %lf&quot;, area, per);
+	return 0;
+}
+</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">P015.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P015.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-P015_c', 'P015.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-P015_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P015.c">
+                                            <pre><code class="language-c">/*WAP to accept number of days and
+display it after converting into
+number of years, months and days */
+// Author - Amit Dutta, Date - Unknown
+
+#include&lt;stdio.h&gt;
+int main() {
+	int day, month, year, temp;
+	printf(&quot;Enter the number of days : &quot;);
+	scanf(&quot;%d&quot;, &amp;day);
+	temp = day;
+	year = day / 365;
+	day = day % 365;
+	month = day / 30;
+	day = day % 30;
+	printf(&quot;\n%d Days = %d Years %d Months %d Days&quot;, temp, year, month, day);
+	return 0;
+}
+</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">P016.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P016.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-P016_c', 'P016.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-P016_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P016.c">
+                                            <pre><code class="language-c">/* WAP to calculate and display radius of a
+circle by taking the area as input */
+// Author - Amit Dutta, Date - Unknown
+
+#include&lt;stdio.h&gt;
+#include&lt;math.h&gt;
+int main() {
+	double area, r;
+	printf(&quot;Enter the area of a circle : &quot;);
+	scanf(&quot;%lf&quot;, &amp;area);
+	r = sqrt((7 * area) / 22);
+	printf(&quot;\nRadius : %lf&quot;, r);
+	return 0;
+}
+</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">P017.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P017.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-P017_c', 'P017.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-P017_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P017.c">
+                                            <pre><code class="language-c">/* Find maximum between three number. */
+// Author - Amit Dutta, Date - Unknown
+
+#include &lt;stdio.h&gt;
+int main()
+{
+    int a, b, c, max;
+    printf(&quot;Enter the value for a, b, c : &quot;);
+    scanf(&quot;%d %d %d&quot;, &amp;a, &amp;b, &amp;c);
+    max = a;
+    if (max &lt; b)
+        max = b;
+    if (max &lt; c)
+        max = c;
+    printf(&quot;Maximum : %d&quot;, max);
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">P018.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P018.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-P018_c', 'P018.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-P018_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P018.c">
+                                            <pre><code class="language-c">/* WAP to input the cost price and selling price and
+calculate profit, profit percentage, loss percentage or
+display the manage nither profit nor loss. */
+// Author - Amit Dutta, Date - Unknown
+
+#include &lt;stdio.h&gt;
+int main()
+{
+    double cost, sell, pro, prop, loss, lossp;
+    printf(&quot;Enter the cost and selling price : &quot;);
+    scanf(&quot;%lf %lf&quot;, &amp;cost, &amp;sell);
+    if (sell &gt; cost)
+    {
+        pro = sell - cost;
+        prop = (pro / cost) * 100;
+        printf(&quot;Profit : RS %g, Profit Percentage : %g&quot;, pro, prop);
+    }
+    else if (sell &lt; cost)
+    {
+        loss = cost - sell;
+        lossp = (loss / cost) * 100;
+        printf(&quot;Loss   : RS %g, Loss Percentage   : %g&quot;, loss, lossp);
+    }
+    else
+        printf(&quot;Neither loss nor Profit.&quot;);
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">P019.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P019.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-P019_c', 'P019.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-P019_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P019.c">
+                                            <pre><code class="language-c">/* WAP to input the distance covered and calculate
+the amount to be paid by the passanger.
+    Distance        Rate
+    =&lt;5KM           RS 90
+    next 10KM       RS 20/KM
+    next 10KM       RS 10/KM
+    more than 25KM  RS 9/KM
+*/
+// Author - Amit Dutta, Date - Unknown
+
+#include &lt;stdio.h&gt;
+int main()
+{
+    double dis, amt;
+    printf(&quot;Enter the distance : &quot;);
+    scanf(&quot;%lf&quot;, &amp;dis);
+    if (dis &lt;= 5.0)
+        amt = 90.0;
+    else if (dis &gt; 5.0 &amp;&amp; dis &lt;= 15.0)
+        amt = 90.0 + (dis - 5.0) * 20;
+    else if (dis &gt; 15.0 &amp;&amp; dis &lt;= 25.0)
+        amt = 90.0 + 200.0 + (dis - 15.0) * 10;
+    else if (dis &gt; 25.0)
+        amt = 90.0 + 200.0 + 100.0 + (dis - 25.0) * 9;
+    printf(&quot;\nAmount to be paid : %g&quot;, amt);
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">P020.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P020.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-P020_c', 'P020.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-P020_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P020.c">
+                                            <pre><code class="language-c">/* WAP to calculate and display the maturity amount
+taking the sum and number of days as input.
+    No. of Days         Rate of Interest
+    Upto 180 days       5.5 %
+    181 to 364 days     7.5 %
+    exact 365 days      9.0 %
+    more than 365 days  8.5 %
+*/
+// Author - Amit Dutta, Date - Unknown
+
+#include &lt;stdio.h&gt;
+int main()
+{
+    double nod, amt, s, i;
+    printf(&quot;Enter the amount and the time in days : &quot;);
+    scanf(&quot;%lf %lf&quot;, &amp;s, &amp;nod);
+    if (nod &lt;= 180)
+        i = (s * 5.5 * (nod / 365)) / 100;
+    else if (nod &gt; 180.0 &amp;&amp; nod &lt;= 364.0)
+        i = (s * 7.5 * (nod / 365)) / 100;
+    else if (nod == 365.0)
+        i = (s * 9.0 * 1) / 100;
+    else if (nod &gt; 365.0)
+        i = (s * 8.5 * (nod / 365)) / 100;
+    amt = s + i;
+    printf(&quot;Amount to be paid : %g&quot;, amt);
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">P021.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P021.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-P021_c', 'P021.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-P021_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P021.c">
+                                            <pre><code class="language-c">/* WAP to input a positive number and check if it is a perfect
+square number or not. */
+/* Author - Amit Dutta, Date - 8th OCT, 2025 */
+// This code has not been compiled. 
+// If you find any issues, please create a new issue on GitHub regarding them.
+
+#include &lt;stdio.h&gt;
+#include &lt;math.h&gt;
+int main()
+{
+    int n, temp;
+    double sr;
+    printf(&quot;Enter the number : &quot;);
+    scanf(&quot;%d&quot;, &amp;n);
+    sr = sqrt(n);
+    temp = (int)sr;
+    if (temp * temp == n)
+        printf(&quot;\nThis is a perfect square.&quot;);
+    else
+        printf(&quot;\nThis is not a perfect square.&quot;);
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">P022.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P022.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-P022_c', 'P022.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-P022_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P022.c">
+                                            <pre><code class="language-c">/* WAP to find out smallest of three numbers without using if_else block. */
+/* Author - Amit Dutta, Date - 8th OCT, 2025 */
+// This code has not been compiled. 
+// If you find any issues, please create a new issue on GitHub regarding them.
+
+#include &lt;stdio.h&gt;
+int main()
+{
+    int a, b, c, min;
+    printf(&quot;Enter three number : &quot;);
+    scanf(&quot;%d %d %d&quot;, &amp;a, &amp;b, &amp;c);
+    min = (a &lt; b &amp;&amp; a &lt; c) ? a : (b &lt; a &amp;&amp; b &lt; c) ? b
+                                                  : c;
+    printf(&quot;Minimum = %d&quot;, min);
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">P023.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P023.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-P023_c', 'P023.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-P023_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P023.c">
+                                            <pre><code class="language-c">/* WAP to input the total cost and compute the amount to be paid
+by the customer.  */
+/* Author - Amit Dutta, Date - 8th OCT, 2025 */
+// This code has not been compiled. 
+// If you find any issues, please create a new issue on GitHub regarding them.
+
+#include &lt;stdio.h&gt;
+int main()
+{
+    double cost, amt;
+    printf(&quot;Enter the total cost : &quot;);
+    scanf(&quot;%lf&quot;, &amp;cost);
+    if (cost &lt;= 2000)
+        amt = cost * 0.94;
+    else if (cost &gt; 2000 &amp;&amp; cost &lt;= 5000)
+        amt = cost * 0.9;
+    else if (cost &gt; 5000 &amp;&amp; cost &lt;= 10000)
+        amt = cost * 0.85;
+    else if (cost &gt; 10000)
+        amt = cost * 0.8;
+    printf(&quot;\nAmount to be paid : %g&quot;, amt);
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">P024.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P024.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-P024_c', 'P024.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-P024_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P024.c">
+                                            <pre><code class="language-c">/* WAP to check whether a year is leapyear or not. */
+/* Author - Amit Dutta, Date - 8th OCT, 2025 */
+// This code has not been compiled. 
+// If you find any issues, please create a new issue on GitHub regarding them.
+
+#include &lt;stdio.h&gt;
+int main()
+{
+    int year;
+    printf(&quot;Enter the year : &quot;);
+    scanf(&quot;%d&quot;, &amp;year);
+    if (year % 4 == 0 &amp;&amp; year % 100 != 0)
+        printf(&quot;\nYear %d is a leapyear.&quot;, year);
+    else if (year % 400 == 0)
+        printf(&quot;\nYear %d is a leapyear (Century).&quot;, year);
+    else
+        printf(&quot;\nYear %d is not a leapyear.&quot;, year);
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">P025.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P025.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-P025_c', 'P025.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-P025_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P025.c">
+                                            <pre><code class="language-c">/* WAP to input the electricity unit consumed and calculate the total
+bill amount according to the given condition :
+    for 1st 50 unit            Rs. 0.50 per unit
+    next 100 unit              Rs. 0.75 per unit
+    next 100 unit              Rs. 1.20 per unit
+    above 250 unit             Rs. 1.50 per unit
+And additional charge of 20 percent is added to the bill.
+*/
+/* Author - Amit Dutta, Date - 8th OCT, 2025 */
+// This code has not been compiled. 
+// If you find any issues, please create a new issue on GitHub regarding them.
+
+#include &lt;stdio.h&gt;
+int main()
+{
+    double unit, amt;
+    printf(&quot;Enter the electricity consp(unit) : &quot;);
+    scanf(&quot;%lf&quot;, &amp;amt);
+    if (unit &lt;= 50)
+        amt = unit * 0.50;
+    else if (unit &gt; 50 &amp;&amp; unit &lt;= 50)
+        amt = 25 + ((unit - 50) * 0.75);
+    else if (unit &gt; 150 &amp;&amp; unit &lt;= 250)
+        amt = 25 + 75 + ((unit - 150) * 1.20);
+    else if (unit &gt; 250)
+        amt = 25 + 75 + 120 + ((unit - 250) * 1.50);
+    amt = amt * 1.20;
+    printf(&quot;\nAmount to be paid : %g&quot;, amt);
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">P026.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P026.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-P026_c', 'P026.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-P026_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P026.c">
+                                            <pre><code class="language-c">/* WAP to input sum (p), rate of interest (r), time (t) and type of interest
+(&#x27;s&#x27; for simple interest amd &#x27;c&#x27; for compound interest). Calculate and display
+the interest earned
+    si = (p * r * t) / 100
+    compoundInterest = p * ((1 + r / 100)^t - 1)
+*/
+/* Author - Amit Dutta, Date - 8th OCT, 2025 */
+
+#include &lt;stdio.h&gt;
+#include &lt;math.h&gt;
+#include &lt;ctype.h&gt;
+int main()
+{
+    double principalAmount, rateOfInterest, timePeriod, simpleInterest, compoundInterest;
+    char mode;
+    printf(&quot;Enter the principle amount, Rate of interest, Time : &quot;);
+    scanf(&quot;%lf %lf %lf&quot;, &amp;principalAmount, &amp;rateOfInterest, &amp;timePeriod);
+    printf(&quot;\nEnter the mode (&#x27;s&#x27; : simple interest, &#x27;c&#x27; : compound interest) : &quot;);
+    scanf(&quot; %c&quot;, &amp;mode);
+    mode = tolower(mode);
+    switch (mode)
+    {
+    case &#x27;s&#x27;:
+        simpleInterest = (principalAmount * rateOfInterest * timePeriod) / 100;
+        printf(&quot;\nSimple Interest : %g&quot;, simpleInterest);
+        break;
+    case &#x27;c&#x27;:
+        compoundInterest = principalAmount * (pow((1 + rateOfInterest / 100), timePeriod) - 1);
+        printf(&quot;\nCompound Interest : %g&quot;, compoundInterest);
+        break;
+    default:
+        printf(&quot;\nInvalid Input&quot;);
+        return 1;
+    }
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">P027.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P027.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-P027_c', 'P027.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-P027_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P027.c">
+                                            <pre><code class="language-c">/*  Purchase        Discount on     Discount on
+     Amount            Laptop         Desktop
+    --------        -----------     -----------
+    Upto 20k            3.0%            5.0%
+    20001 - 50k         5.0%            7.5%
+    50001 - 75k         7.5%           10.5%
+    more than 75k      10.0%           15.0%
+WAP to input amount of purchase and type of purchase (&#x27;L&#x27; : laptop, &#x27;D&#x27; : desktop)
+and display the discount amount and the discounted price (Net Amount).
+*/
+/* Author - Amit Dutta, Date - 8th OCT, 2025 */
+// This code has not been compiled.
+// If you find any issues, please create a new issue on GitHub regarding them.
+
+#include &lt;stdio.h&gt;
+#include &lt;ctype.h&gt;
+int main()
+{
+    double principal_amount, desktop_discount, laptop_discount, discount_amount, discounted_price;
+    char choice;
+    printf(&quot;Enter the purchase amount : &quot;);
+    scanf(&quot;%lf&quot;, &amp;principal_amount);
+    printf(&quot;Type of purchase (&#x27;L&#x27; : Laptop, &#x27;D&#x27; : Desktop) : &quot;);
+    scanf(&quot; %c&quot;, &amp;choice);
+    choice = toupper(choice);
+    if (principal_amount &lt;= 20000)
+    {
+        laptop_discount = 0.03;
+        desktop_discount = 0.05;
+    }
+    else if (principal_amount &gt; 20000 &amp;&amp; principal_amount &lt;= 50000)
+    {
+        laptop_discount = 0.05;
+        desktop_discount = 0.075;
+    }
+    else if (principal_amount &gt; 50000 &amp;&amp; principal_amount &lt;= 75000)
+    {
+        laptop_discount = 0.075;
+        desktop_discount = 0.105;
+    }
+    else if (principal_amount &gt; 75000)
+    {
+        laptop_discount = 0.1;
+        desktop_discount = 0.15;
+    }
+    switch (choice)
+    {
+    case &#x27;L&#x27;:
+        discount_amount = principal_amount * laptop_discount;
+        discounted_price = principal_amount - discount_amount;
+        printf(&quot;\nDiscount Amount : %g&quot;
+               &quot;\nDiscounted Price : %g&quot;,
+               discount_amount, discounted_price);
+        break;
+    case &#x27;D&#x27;:
+        discount_amount = principal_amount * desktop_discount;
+        discounted_price = principal_amount - discount_amount;
+        printf(&quot;\nDiscount Amount : %g&quot;
+               &quot;\nDiscounted Price : %g&quot;,
+               discount_amount, discounted_price);
+        break;
+    default:
+        printf(&quot;\nInvalid Input.&quot;);
+        return 1;
+    }
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">P028.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P028.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-P028_c', 'P028.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-P028_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P028.c">
+                                            <pre><code class="language-c">/* WAP to calculate factorial of a number */
+/* Author - Amit Dutta, Date - 11th OCT, 2025 */
+
+#include &lt;stdio.h&gt;
+int main()
+{
+    int i = 1, num, fact = 1;
+    printf(&quot;Enter the number : &quot;);
+    if (scanf(&quot;%d&quot;, &amp;num) != 1)
+    {
+        printf(&quot;\nPlease enter a number.&quot;);
+        return 1;
+    }
+    if (num == 0)
+    {
+        printf(&quot;\nFactorial of 0 : 1&quot;);
+        return 0;
+    }
+    if (num &lt; 0)
+    {
+        printf(&quot;\nFactorial of %d : UNDEFINED&quot;, num);
+        return 0;
+    }
+    while (i &lt;= num)
+    {
+        fact = fact * i;
+        i++;
+    }
+    printf(&quot;Factorial of %d : %d&quot;, num, fact);
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">P029.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P029.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-P029_c', 'P029.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-P029_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P029.c">
+                                            <pre><code class="language-c">/* WAP to perform addition of first n natural numbers. sum = 1 + 2 + 3 + ... */
+/* Author - Amit Dutta, Date - 11th OCT, 2025 */
+
+#include &lt;stdio.h&gt;
+int main()
+{
+    int num, i = 0, result = 0;
+    printf(&quot;Enter the value for n : &quot;);
+    if (scanf(&quot;%d&quot;, &amp;num) != 1)
+    {
+        printf(&quot;\nPlease enter a number.&quot;);
+        return 1;
+    }
+    if (num &lt; 1)
+    {
+        printf(&quot;\nPlease enter a positive number.&quot;);
+        return 1;
+    }
+    while (i &lt;= num)
+    {
+        result = result + i;
+        i++;
+    }
+    printf(&quot;\nResult : %d&quot;, result);
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">P030.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P030.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-P030_c', 'P030.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-P030_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P030.c">
+                                            <pre><code class="language-c">/* Display the first 15 terms of the series. */
+/* Author - Amit Dutta, Date - 11th OCT, 2025 */
+
+#include &lt;stdio.h&gt;
+#include &lt;math.h&gt;
+
+int main()
+{
+    int i, r;
+
+    // 3, 6, 9, 12, ...
+    {
+        i = 3, r = 0;
+        printf(&quot;Series 1 (3, 6, 9, 12, ...) :&quot;);
+        while (i &lt;= 15)
+        {
+            r = r + 3;
+            printf(&quot;  %d&quot;, r);
+            i++;
+        }
+    }
+
+    // 1, 4, 9, 16, ...
+    {
+        i = 1;
+        printf(&quot;\nSeries 2 (1, 4, 9, 16, ...) :&quot;);
+        while (i &lt;= 15)
+        {
+            printf(&quot;  %d&quot;, i * i);
+            i++;
+        }
+    }
+
+    // 4, 8, 16, 32, ...
+    {
+        i = 1, r = 2;
+        printf(&quot;\nSeries 3 (4, 8, 16, 32, ...) :&quot;);
+        while (i &lt;= 15)
+        {
+            r = r * 2;
+            printf(&quot;  %d&quot;, r);
+            i++;
+        }
+    }
+
+    // 0, 7, 26, ...
+    {
+        i = 1, r;
+        printf(&quot;\nSeries 4 (0, 7, 26, ...) :&quot;);
+        while (i &lt;= 15)
+        {
+            r = (int)pow(i, 3) - 1;
+            printf(&quot;  %d&quot;, r);
+            i++;
+        }
+    }
+
+    return 0;
+}
+</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">P031.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P031.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-P031_c', 'P031.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-P031_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P031.c">
+                                            <pre><code class="language-c">/* Find the sum of the series */
+/* Author - Amit Dutta, Date - 11th OCT, 2025 */
+
+#include &lt;stdio.h&gt;
+#include &lt;math.h&gt;
+
+int main()
+{
+    double a, res, n;
+    int i;
+
+    // s = (a ^ 2) + (a ^ 2 / 2) + (a ^ 2 / 3) + ... + (a ^ 2 / 10)
+    {
+        res = 0, i = 1;
+        printf(&quot;--- s = (a ^ 2) + (a ^ 2 / 2) + (a ^ 2 / 3) + ... + (a ^ 2 / 10) ---&quot;);
+        printf(&quot;\nEnter the number : &quot;);
+        scanf(&quot;%lf&quot;, &amp;a);
+        while (i &lt;= 10)
+        {
+            res = res + ((a * a) / i);
+            i++;
+        }
+        printf(&quot;S = %g&quot;, res);
+    }
+
+    // s = 1 + (2 ^ 2 / a) + (3 ^ 3 / a ^ 2) + ... + n
+    {
+        res = 0, i = 0;
+        printf(&quot;\n--- // s = 1 + (2 ^ 2 / a) + (3 ^ 3 / a ^ 2) + ... + n ---&quot;);
+        printf(&quot;\nEnter the value for a and n : &quot;);
+        scanf(&quot; %lf %lf&quot;, &amp;a, &amp;n);
+        while (i &lt;= n - 1)
+        {
+            res = res + (pow(i + 1, i + 1) / pow(a, i));
+            i++;
+        }
+        printf(&quot;S = %g&quot;, res);
+    }
+
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">P032.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P032.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-P032_c', 'P032.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-P032_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P032.c">
+                                            <pre><code class="language-c">/* WAP to input a number and check whether it is a Niven number
+or not. (When a number is divisible by its sum of digit) e.g. : n = 126*/
+/* Author - Amit Dutta, Date - 11th OCT, 2025 */
+
+#include &lt;stdio.h&gt;
+int main()
+{
+    int n, temp, sod = 0;
+    printf(&quot;Enter the number : &quot;);
+    scanf(&quot;%d&quot;, &amp;n);
+    temp = n;
+    while (temp &gt; 0)
+    {
+        sod = sod + (temp % 10);
+        temp = temp / 10;
+    }
+    if (n % sod == 0)
+        printf(&quot;\nIt is Niven number.&quot;);
+    else
+        printf(&quot;\nIt is not a Niven number.&quot;);
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">P033.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P033.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-P033_c', 'P033.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-P033_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P033.c">
+                                            <pre><code class="language-c">/* WAP to calculate the sum of even digits and odd digits. Number will be provided by user. */
+/* Author - Amit Dutta, Date - 18th OCT, 2025 */
+
+#include &lt;stdio.h&gt;
+int main()
+{
+    int inp, odd = 0, even = 0, temp;
+    printf(&quot;Enter the number : &quot;);
+    scanf(&quot;%d&quot;, &amp;inp);
+    temp = inp;
+    while (temp &gt; 0)
+    {
+        if ((temp % 10) % 2 == 0)
+            even += temp % 10;
+        else
+            odd += temp % 10;
+        temp /= 10;
+    }
+    printf(&quot;\nSum of even : %d&quot;
+           &quot;\nSum of odd : %d&quot;,
+           even, odd);
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">P034.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P034.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-P034_c', 'P034.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-P034_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P034.c">
+                                            <pre><code class="language-c">/* Get sum of even position digit and odd position digit */
+/* Counting starts from the rightmost digit as position 1 (Odd). */
+/* Author - Amit Dutta, Date - 18th OCT, 2025 */
+
+#include &lt;stdio.h&gt;
+int main()
+{
+    int inp, temp, index = 1, even = 0, odd = 0;
+    printf(&quot;Enter the numebr : &quot;);
+    scanf(&quot;%d&quot;, &amp;inp);
+    temp = inp;
+    while (temp &gt; 0)
+    {
+        if (index % 2 == 0)
+            even += temp % 10;
+        else
+            odd += temp % 10;
+        temp /= 10;
+        index++;
+    }
+    printf(&quot;\nSum of even position digits : %d&quot;
+           &quot;\nSum of odd position digits : %d&quot;,
+           even, odd);
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">P035.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P035.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-P035_c', 'P035.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-P035_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P035.c">
+                                            <pre><code class="language-c">/* WAP to input an int number and display the product of the successors
+of even digits of the number entered by user. */
+/* Author - Amit Dutta, Date - 18th OCT, 2025 */
+
+#include &lt;stdio.h&gt;
+#include &lt;stdbool.h&gt;
+int main()
+{
+    int n, res = 1, temp;
+    bool status = false;
+    printf(&quot;Enter the number : &quot;);
+    scanf(&quot;%d&quot;, &amp;n);
+    temp = n;
+    while (temp &gt; 0)
+    {
+        if ((temp % 10) % 2 == 0)
+        {
+            res *= (temp % 10) + 1;
+            status = true;
+        }
+        temp /= 10;
+    }
+    if (!status)
+        printf(&quot;\nThere is no even digits.&quot;);
+    else
+        printf(&quot;\nThe product of the successors of even digits of the number %d is : %d&quot;, n, res);
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">P036.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P036.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-P036_c', 'P036.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-P036_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P036.c">
+                                            <pre><code class="language-c">/* sum = a + (a^2)/2 + (a^3)/3 + ... + (a^n)/n */
+/* Author - Amit Dutta, Date - 18th OCT, 2025 */
+
+#include &lt;stdio.h&gt;
+#include &lt;math.h&gt;
+
+int main()
+{
+    double a, sum = 0;
+    int n, i;
+    printf(&quot;Enter value for a and n : &quot;);
+    scanf(&quot;%lf %d&quot;, &amp;a, &amp;n);
+    for (i = 1; i &lt;= n; i++)
+        sum += pow(a, i) / i;
+    printf(&quot;\nSum = %g&quot;, sum);
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">P037.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P037.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-P037_c', 'P037.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-P037_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P037.c">
+                                            <pre><code class="language-c">/* sum = 1 + 1+2/1*2 + 1+2+3/1*2*3 + ... + 1+2+3+...+n/1*2*3*...*n */
+/* Author - Amit Dutta, Date - 18th OCT, 2025 */
+
+#include &lt;stdio.h&gt;
+
+int main()
+{
+    double sum = 0, temp1 = 0, temp2 = 1;
+    int n, i;
+    printf(&quot;Enter value for n : &quot;);
+    scanf(&quot;%d&quot;, &amp;n);
+    for (i = 1; i &lt;= n; i++)
+    {
+        temp1 += i;
+        temp2 *= i;
+        sum += temp1 / temp2;
+    }
+    printf(&quot;\nSum = %g&quot;, sum);
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">P038.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P038.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-P038_c', 'P038.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-P038_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P038.c">
+                                            <pre><code class="language-c">/* Write a program to check prime number */
+/* Author - Amit Dutta, Date - 27th OCT, 2025 */
+
+#include &lt;stdio.h&gt;
+#include &lt;math.h&gt;
+#include &lt;stdbool.h&gt;
+
+int main()
+{
+    int num, i, endCheckDigit;
+    bool isPrime = true;
+    printf(&quot;Enter the number : &quot;);
+    if (scanf(&quot;%d&quot;, &amp;num) != 1)
+    {
+        printf(&quot;\nOnly a number is allowed, not a character.&quot;);
+        return 1;
+    }
+    if (num &lt;= 0)
+    {
+        printf(&quot;\nOnly postive number is allowed.&quot;);
+        return 1;
+    }
+    if (num == 1)
+    {
+        printf(&quot;\nInput 1 is not a prime number.&quot;
+               &quot;\nHas only one positive divisor (itself), not exactly two.&quot;
+               &quot;\nRule: Prime number should have exactly two distinct positive divisors: 1 and itself&quot;);
+        return 0;
+    }
+    if (num == 2)
+    {
+        printf(&quot;\nInput 2 is a prime number.&quot;
+               &quot;\n(Note: 2 is only Even Prime Number)&quot;);
+        return 0;
+    }
+    if (num % 2 == 0)
+    {
+        printf(&quot;\nInput %d is not a prime number.&quot;, num);
+        return 0;
+    }
+    endCheckDigit = sqrt(num);
+    for (i = 3; i &lt;= endCheckDigit; i += 2)
+    {
+        if (num % i == 0)
+        {
+            isPrime = false;
+            printf(&quot;\nInput %d is not prime number.&quot;, num);
+            return 0;
+        }
+    }
+    if (isPrime)
+    {
+        printf(&quot;\nInput %d is a prime number.&quot;, num);
+    }
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">P039.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P039.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-P039_c', 'P039.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-P039_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P039.c">
+                                            <pre><code class="language-c">/* Write a program to print all the factors of a postive integer */
+/* Author - Amit Dutta, Date - 27th OCT, 2025 */
+
+#include &lt;stdio.h&gt;
+
+int main()
+{
+    int num, i;
+    printf(&quot;Enter a number : &quot;);
+    scanf(&quot;%d&quot;, &amp;num);
+    printf(&quot;\nFactors of %d : &quot;, num);
+    for (i = 1; i &lt;= num / 2; i++)
+    {
+        if (num % i == 0)
+        {
+            printf(&quot;  %d&quot;, i);
+        }
+    }
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">P040.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P040.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-P040_c', 'P040.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-P040_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P040.c">
+                                            <pre><code class="language-c">/* Write a program to calculate HCF of two positive number */
+/* Author - Amit Dutta, Date - 27th OCT, 2025 */
+
+#include &lt;stdio.h&gt;
+int main()
+{
+    int a, b, temp;
+    printf(&quot;Enter two number : &quot;);
+    scanf(&quot;%d %d&quot;, &amp;a, &amp;b);
+    while (b &gt; 0)
+    {
+        temp = a;
+        a = b;
+        b = temp % b;
+    }
+    printf(&quot;HCF = %d&quot;, a);
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">P041.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P041.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-P041_c', 'P041.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-P041_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P041.c">
+                                            <pre><code class="language-c">/* Write a program to enter two numbers and check they are co-prime or not.
+    co-prime when HCF = 1
+*/
+/* Author - Amit Dutta, Date - 27th OCT, 2025 */
+
+#include &lt;stdio.h&gt;
+int main()
+{
+    int a, b, temp, temp_a, temp_b;
+    printf(&quot;Enter two number : &quot;);
+    scanf(&quot;%d %d&quot;, &amp;a, &amp;b);
+    temp_a = a;
+    temp_b = b;
+    while (b &gt; 0)
+    {
+        temp = a;
+        a = b;
+        b = temp % b;
+    }
+    if (a == 1)
+    {
+        printf(&quot;\n(%d, %d) is co-prime.&quot;, temp_a, temp_b);
+    }
+    else
+    {
+        printf(&quot;\n(%d, %d) is not co-prime.&quot;, temp_a, temp_b);
+    }
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">P042.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P042.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-P042_c', 'P042.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-P042_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P042.c">
+                                            <pre><code class="language-c">/* Write a program to accept a number and check whether the number
+is twisted prime or not. */
+/* Author - Amit Dutta, Date - 27th OCT, 2025 */
+
+#include &lt;stdio.h&gt;
+#include &lt;math.h&gt;
+
+int main()
+{
+    int n, t, i, r, rev, prime = 1;
+    printf(&quot;Enter the number : &quot;);
+    scanf(&quot;%d&quot;, &amp;n);
+    for (i = 2; i &lt;= (int)sqrt(n); i++)
+    {
+        if (n % i == 0)
+        {
+            prime = 0;
+            break;
+        }
+    }
+    if (prime)
+    {
+        printf(&quot;%d is a prime number.&quot;, n);
+        t = n;
+        rev = 0;
+        prime = 1;
+        while (t &gt; 0)
+        {
+            r = t % 10;
+            rev = rev * 10 + r;
+            t = t / 10;
+        }
+        for (i = 2; i &lt;= (int)sqrt(rev); i++)
+        {
+            if (rev % i == 0)
+            {
+                prime = 0;
+                break;
+            }
+        }
+        if (prime)
+        {
+            printf(&quot;\n%d and %d are prime numbers.. TWISTED PRIME&quot;, n, rev);
+        }
+        else
+        {
+            printf(&quot;\n%d is non prime&quot;, rev);
+        }
+    }
+    else
+    {
+        printf(&quot;\n%d is non prime.&quot;, n);
+    }
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">P043.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P043.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-P043_c', 'P043.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-P043_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P043.c">
+                                            <pre><code class="language-c">/* Write a program to check palindrome number. */
+/* Author - Amit Dutta, Date - 27th OCT, 2025 */
+
+#include &lt;stdio.h&gt;
+int main()
+{
+    int num, temp, rev;
+    printf(&quot;Enter the number : &quot;);
+    scanf(&quot;%d&quot;, &amp;num);
+    temp = num;
+    rev = 0;
+    while (temp &gt; 0)
+    {
+        rev = (rev * 10) + (temp % 10);
+        temp /= 10;
+    }
+    if (num == rev)
+    {
+        printf(&quot;%d is a palindrome number.&quot;, num);
+    }
+    else
+    {
+        printf(&quot;%d is not a palindrome number.&quot;, num);
+    }
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">P044.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P044.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-P044_c', 'P044.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-P044_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P044.c">
+                                            <pre><code class="language-c">/* Write a program to input a number and check whether the
+number is Pronic number or not.
+    Pronic Number: The number which is the product of two numbers
+                   which is the product of two consecutive integer.
+                   Ex: 20 = 4 * 5
+*/
+/* Author - Amit Dutta, Date - 27th OCT, 2025 */
+
+// using boolean...
+/*
+#include &lt;stdio.h&gt;
+#include &lt;math.h&gt;
+#include &lt;stdbool.h&gt;
+
+int main()
+{
+    int num, iterationIndex;
+    bool isPronic = false;
+    printf(&quot;Enter the number : &quot;);
+    if (scanf(&quot;%d&quot;, &amp;num) != 1)
+    {
+        printf(&quot;\nYou have to enter a number, not an character or symbol.&quot;);
+        return 1;
+    }
+    if (num &lt; 1)
+    {
+        printf(&quot;\nOnly postive number is allowed.&quot;);
+        return 1;
+    }
+    for (iterationIndex = 1; iterationIndex &lt;= num / 2; iterationIndex++)
+    {
+        if (iterationIndex * (iterationIndex + 1) == num)
+        {
+            printf(&quot;\nInput %d is a Pronic Number.&quot;, num);
+            isPronic = true;
+            break;
+        }
+    }
+    if(!isPronic)
+    {
+        printf(&quot;\nInput %d is not a Pronic Number.&quot;, num);
+    }
+    return 0;
+}
+*/
+
+// using direct return method (more efficient and generally preferred)...
+
+#include &lt;stdio.h&gt;
+#include &lt;math.h&gt;
+
+int main()
+{
+    int num, iterationIndex, iterationLimit;
+    printf(&quot;Enter the number : &quot;);
+    if (scanf(&quot;%d&quot;, &amp;num) != 1)
+    {
+        printf(&quot;\nYou have to enter a number, not an character or symbol.&quot;);
+        return 1;
+    }
+    if (num &lt; 1)
+    {
+        printf(&quot;\nOnly postive number is allowed.&quot;);
+        return 1;
+    }
+    iterationLimit = (int)sqrt(num);
+    for (iterationIndex = 1; iterationIndex &lt;= iterationLimit; iterationIndex++)
+    {
+        if (iterationIndex * (iterationIndex + 1) == num)
+        {
+            printf(&quot;\nInput %d is a Pronic Number.&quot;, num);
+            return 0;
+        }
+    }
+    printf(&quot;\nInput %d is not a Pronic Number.&quot;, num);
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">P045.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P045.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-P045_c', 'P045.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-P045_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P045.c">
+                                            <pre><code class="language-c">/* Make this pattern for input n.
+    Pattern :
+    1
+    1   2
+    1   2   3
+    1   2   3   4
+    1   2   3   4   5
+*/
+/* Author - Amit Dutta, Date - 01st NOVEMBER, 2025 */
+
+#include &lt;stdio.h&gt;
+
+int main()
+{
+    int i, j, n;
+    printf(&quot;Enter n : &quot;);
+    scanf(&quot;%d&quot;, &amp;n);
+    for (i = 1; i &lt;= n; i++)
+    {
+        for (j = 1; j &lt;= i; j++)
+        {
+            printf(&quot;%d\t&quot;, j);
+        }
+        printf(&quot;\n&quot;);
+    }
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">P046.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P046.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-P046_c', 'P046.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-P046_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P046.c">
+                                            <pre><code class="language-c">/* Make this pattern for input n.
+    Pattern :
+    1
+    2   1
+    3   2   1
+    4   3   2   1
+    5   4   3   2   1
+*/
+/* Author - Amit Dutta, Date - 01st NOVEMBER, 2025 */
+
+#include &lt;stdio.h&gt;
+
+int main()
+{
+    int i, j, n;
+    printf(&quot;Enter n : &quot;);
+    scanf(&quot;%d&quot;, &amp;n);
+    for (i = 1; i &lt;= n; i++)
+    {
+        for (j = i; j &gt;= 1; j--)
+        {
+            printf(&quot;%d\t&quot;, j);
+        }
+        printf(&quot;\n&quot;);
+    }
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">P047.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P047.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-P047_c', 'P047.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-P047_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P047.c">
+                                            <pre><code class="language-c">/* Make this pattern for input n.
+    Pattern :
+    5
+    5   4
+    5   4   3
+    5   4   3   2
+    5   4   3   2   1
+*/
+/* Author - Amit Dutta, Date - 01st NOVEMBER, 2025 */
+
+#include &lt;stdio.h&gt;
+
+int main()
+{
+    int i, j, n;
+    printf(&quot;Enter n : &quot;);
+    scanf(&quot;%d&quot;, &amp;n);
+    for (i = n; i &gt;= 1; i--)
+    {
+        for (j = n; j &gt;= i; j--)
+        {
+            printf(&quot;%d\t&quot;, j);
+        }
+        printf(&quot;\n&quot;);
+    }
+    return 0;
+}
+</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">P048.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P048.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-P048_c', 'P048.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-P048_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P048.c">
+                                            <pre><code class="language-c">/* Make this pattern for input n no of row.
+    Pattern :
+    1
+    2   3   
+    4   5   6
+    7   8   9   10
+    11  12  13  14  15   
+*/
+/* Author - Amit Dutta, Date - 01st NOVEMBER, 2025 */
+
+#include &lt;stdio.h&gt;
+
+int main()
+{
+    int i, j, n, temp = 1;
+    printf(&quot;Enter row number : &quot;);
+    scanf(&quot;%d&quot;, &amp;n);
+    for (i = 1; i &lt;= n; i++)
+    {
+        for (j = 1; j &lt;= i; j++)
+        {
+            printf(&quot;%d\t&quot;, temp);
+            temp++;
+        }
+        printf(&quot;\n&quot;);
+    }
+    return 0;
+}
+</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">P049.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P049.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-P049_c', 'P049.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-P049_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P049.c">
+                                            <pre><code class="language-c">/* Make this pattern for input n no of row.
+    Pattern :
+    #
+    @   @
+    #   #   #
+    @   @   @   @
+    #   #   #   #   #
+    */
+/* Author - Amit Dutta, Date - 01st NOVEMBER, 2025 */
+
+#include &lt;stdio.h&gt;
+
+int main()
+{
+    int i, j, n;
+    char a = &#x27;#&#x27;, b = &#x27;@&#x27;;
+    printf(&quot;Enter row number : &quot;);
+    scanf(&quot;%d&quot;, &amp;n);
+    for (i = 1; i &lt;= n; i++)
+    {
+        for (j = 1; j &lt;= i; j++)
+        {
+            if (i % 2 == 0)
+                printf(&quot;%c\t&quot;, b);
+            else
+                printf(&quot;%c\t&quot;, a);
+        }
+        printf(&quot;\n&quot;);
+    }
+    return 0;
+}
+</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">P050-SHORT.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P050-SHORT.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-P050-SHORT_c', 'P050-SHORT.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-P050-SHORT_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P050-SHORT.c">
+                                            <pre><code class="language-c">/* Write a program to input a number and check whether it is Disarium Number or not.
+    Note : A number is said to Disarium if sum of its digit powered by with their
+    respective position is equal to the original number. */
+/* Author - Amit Dutta, Date - 08th November, 2025 */
+
+// This code has not been compiled.
+// If you find any issues, please create a new issue on GitHub regarding them.
+// Go to this link to create a new issue: https://github.com/notamitgamer/bsc/issues
+
+#include &lt;stdio.h&gt;
+#include &lt;math.h&gt;
+
+int main()
+{
+    int num;
+    printf(&quot;Enter the number : &quot;);
+    scanf(&quot;%d&quot;, &amp;num);
+    int position = printf(&quot;%d&quot;, num);
+    int temp = num;
+    int res = 0;
+    while (temp &gt; 0)
+    {
+        res += (int)pow(temp % 10, position);
+        position--;
+        temp /= 10;
+    }
+    if (res == num)
+        printf(&quot; is a Disarium Number.&quot;);
+    else
+        printf(&quot; is Not a Disarium Number.&quot;);
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">P050.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P050.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-P050_c', 'P050.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-P050_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P050.c">
+                                            <pre><code class="language-c">/* Write a program to input a number and check whether it is Disarium Number or not.
+    Note : A number is said to Disarium if sum of its digit powered by with their
+    respective position is equal to the original number. */
+/* Author - Amit Dutta, Date - 08th November, 2025 */
+
+// This code has not been compiled.
+// If you find any issues, please create a new issue on GitHub regarding them.
+// Go to this link to create a new issue: https://github.com/notamitgamer/bsc/issues
+
+#include &lt;stdio.h&gt;
+#include &lt;math.h&gt;
+
+int main()
+{
+    int num, res = 0, temp, position = 0;
+    printf(&quot;Enter the number : &quot;);
+    scanf(&quot;%d&quot;, &amp;num);
+    temp = num;
+    while (temp &gt; 0)
+    {
+        position++;
+        temp /= 10;
+    }
+    temp = num;
+    while (temp &gt; 0)
+    {
+        res += (int)pow(temp % 10, position);
+        position--;
+        temp /= 10;
+    }
+    if (res == num)
+        printf(&quot;\nInput %d is a Disarium Number.&quot;, num);
+    else
+        printf(&quot;\nInput %d is Not a Disarium Number.&quot;, num);
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">P051.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P051.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-P051_c', 'P051.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-P051_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P051.c">
+                                            <pre><code class="language-c">/* Write a program to input two number and check whether they are Amicable Pair or not
+    Example :  Sum of Proper Divisors of 220 (1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110) = 284
+               Sum of Proper Divisors of 284 (1, 2, 4, 71, 142) = 220 */
+/* Author - Amit Dutta, Date - 09th November, 2025 */
+
+// This code has not been compiled.
+// If you find any issues, please create a new issue on GitHub regarding them.
+// Go to this link to create a new issue: https://github.com/notamitgamer/bsc/issues
+
+#include &lt;stdio.h&gt;
+
+int main()
+{
+    int a, b, i, sa = 0, sb = 0;
+    printf(&quot;Enter two number : &quot;);
+    scanf(&quot;%d %d&quot;, &amp;a, &amp;b);
+    for (i = 1; i &lt;= a / 2; i++)
+        if (a % i == 0)
+            sa += i;
+    for (i = 1; i &lt;= b / 2; i++)
+        if (b % i == 0)
+            sb += i;
+    if (sa == b &amp;&amp; sb == a)
+        printf(&quot;\nInput %d and %d is Amicable Pair.&quot;, a, b);
+    else
+        printf(&quot;\nInput %d and %d is Not Amicable Pair.&quot;, a, b);
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">P052.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P052.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-P052_c', 'P052.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-P052_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P052.c">
+                                            <pre><code class="language-c">/* Print the sum of this series for upto n element.
+    Series: 1 + (1 + 2) + (1 + 2 + 3) + (1 + 2 + 3 + 4) + ... + (1 + 2 + 3 + ... + n) */
+/* Author - Amit Dutta, Date - 09th November, 2025 */
+
+// This code has not been compiled.
+// If you find any issues, please create a new issue on GitHub regarding them.
+// Go to this link to create a new issue: https://github.com/notamitgamer/bsc/issues
+
+#include &lt;stdio.h&gt;
+
+int main()
+{
+    int n, sum = 0, temp = 0, i;
+    printf(&quot;Enter the n : &quot;);
+    scanf(&quot;%d&quot;, &amp;n);
+    for (i = 1; i &lt;= n; i++)
+    {
+        temp += i;
+        sum += temp;
+    }
+    printf(&quot;%d&quot;, sum);
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">P053.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P053.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-P053_c', 'P053.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-P053_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P053.c">
+                                            <pre><code class="language-c">/* Print all pattern */
+/* Author - Amit Dutta, Date - 09th November, 2025 */
+
+// This code has not been compiled.
+// If you find any issues, please create a new issue on GitHub regarding them.
+// Go to this link to create a new issue: https://github.com/notamitgamer/bsc/issues
+
+#include &lt;stdio.h&gt;
+
+int main()
+{
+    int i, j, temp;
+
+    printf(&quot;\n\nPattern 1 : \n\n&quot;);
+    /*
+    9   9   9   9   9
+    7   7   7   7   7
+    5   5   5   5   5
+    3   3   3   3   3
+    1   1   1   1   1
+    */
+    temp = 9;
+    for (i = 1; i &lt;= 5; i++)
+    {
+        for (j = 1; j &lt;= 5; j++)
+        {
+            printf(&quot;%d  &quot;, temp);
+        }
+        printf(&quot;\n&quot;);
+        temp -= 2;
+    }
+
+    // Another method print above pattern
+    printf(&quot;\n\nPattern 1 : \n\n&quot;);
+    for (i = 9; i &gt;= 1; i -= 2)
+    {
+        for (j = 1; j &lt;= 5; j++)
+        {
+            printf(&quot;%d  &quot;, i);
+        }
+        printf(&quot;\n&quot;);
+    }
+
+    printf(&quot;\n\nPattern 2 : \n\n&quot;);
+    /*
+    1   2   3   4   5
+    1   2   3   4   5
+    1   2   3   4   5
+    */
+    for (i = 1; i &lt;= 3; i++)
+    {
+        for (j = 1; j &lt;= 5; j++)
+        {
+            printf(&quot;%d  &quot;, j);
+        }
+        printf(&quot;\n&quot;);
+    }
+
+    printf(&quot;\n\nPattern 3 : \n\n&quot;);
+    /*
+    5   4   3   2   1
+    5   4   3   2   1
+    */
+    for (i = 1; i &lt;= 2; i++)
+    {
+        for (j = 5; j &gt;= 1; j--)
+        {
+            printf(&quot;%d  &quot;, j);
+        }
+        printf(&quot;\n&quot;);
+    }
+
+    printf(&quot;\n\nPattern 4 : \n\n&quot;);
+    /*
+    1   2   3   4
+    5   6   7   8
+    9   10  11  12
+    */
+    temp = 1;
+    for (i = 1; i &lt;= 3; i++)
+    {
+        for (j = 1; j &lt;= 4; j++)
+        {
+            printf(&quot;%d  &quot;, temp);
+            temp++;
+        }
+        printf(&quot;\n&quot;);
+    }
+
+    printf(&quot;\n\nPattern 5 : \n\n&quot;);
+    /*
+    1   2   3   4
+    4   8   12  16
+    1   2   3   4
+    4   8   12  16
+    1   2   3   4
+    */
+    for (i = 1; i &lt;= 5; i++)
+    {
+        for (j = 1; j &lt;= 4; j++)
+        {
+            if (i % 2 == 0)
+                printf(&quot;%d  &quot;, j * 4);
+            else
+                printf(&quot;%d  &quot;, j);
+        }
+        printf(&quot;\n&quot;);
+    }
+
+    printf(&quot;\n\nPattern 6 : \n\n&quot;);
+    /*
+    1
+    2   4
+    3   5   7
+    6   8   10  12
+    9   11  13  15  17
+    */
+    int odd = 1, even = 2;
+    for (i = 1; i &lt;= 5; i++)
+    {
+        for (j = 1; j &lt;= i; j++)
+        {
+            if (i % 2 == 0)
+            {
+                printf(&quot;%d  &quot;, even);
+                even += 2;
+            }
+            else
+            {
+                printf(&quot;%d  &quot;, odd);
+                odd += 2;
+            }
+        }
+        printf(&quot;\n&quot;);
+    }
+
+    printf(&quot;\n\nPattern 7 : \n\n&quot;);
+    /*
+    1   2   3   4   5
+    6   7   8   9
+    10  11  12
+    13  14
+    15
+    */
+    temp = 1;
+    for (i = 5; i &gt;= 1; i--)
+    {
+        for (j = 1; j &lt;= i; j++)
+        {
+            printf(&quot;%d  &quot;, temp);
+            temp++;
+        }
+        printf(&quot;\n&quot;);
+    }
+
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">P054.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P054.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-P054_c', 'P054.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-P054_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P054.c">
+                                            <pre><code class="language-c">/* WAP to check Krishnamurty number using user defined methods/functions. */
+/* Author - Amit Dutta, Date - 15th November, 2025 */
+
+// This code has not been compiled.
+// If you find any issues, please create a new issue on GitHub regarding them.
+// Go to this link to create a new issue: https://github.com/notamitgamer/bsc/issues
+
+#include &lt;stdio.h&gt;
+
+int fact(int);
+int isKrishnamurty(int);
+
+int fact(int n)
+{
+    int fact = 1, i;
+    for (i = 1; i &lt;= n; i++)
+        fact *= i;
+    return fact;
+}
+
+int isKrishnamurty(int n)
+{
+    int temp = n, sum = 0;
+    while (temp &gt; 0)
+    {
+        sum += fact(temp % 10);
+        temp /= 10;
+    }
+    return n == sum;
+}
+
+int main()
+{
+    int n;
+    printf(&quot;Enter the number : &quot;);
+    scanf(&quot;%d&quot;, &amp;n);
+    if (isKrishnamurty(n))
+        printf(&quot;\nInput %d is a Krishnamurty Number.&quot;, n);
+    else
+        printf(&quot;\nInput %d is not a Krishnamurty number.&quot;, n);
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">P055.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P055.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-P055_c', 'P055.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-P055_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P055.c">
+                                            <pre><code class="language-c">/* WAP to print n terms of Fibbonacci Series (Starting from term 0) */
+/* Author - Amit Dutta, Date - 15th November, 2025 */
+
+// This code has not been compiled.
+// If you find any issues, please create a new issue on GitHub regarding them.
+// Go to this link to create a new issue: https://github.com/notamitgamer/bsc/issues
+
+#include &lt;stdio.h&gt;
+
+void printFibonacci(int);
+
+void printFibonacci(int n)
+{
+    int val1 = 0, val2 = 1, val3, i;
+    printf(&quot;\nFibonacci series upto %d terms :&quot;, n);
+    if (n &lt; 0)
+        printf(&quot;  N/A&quot;);
+    if (n == 0)
+        printf(&quot;  %d&quot;, val1);
+    if (n &gt; 0)
+        printf(&quot;  %d  %d&quot;, val1, val2);
+    for (i = 2; i &lt;= n; i++)
+    {
+        val3 = val1 + val2;
+        printf(&quot;  %d&quot;, val3);
+        val1 = val2;
+        val2 = val3;
+    }
+}
+
+int main()
+{
+    int n;
+    printf(&quot;Enter the n : &quot;);
+    scanf(&quot;%d&quot;, &amp;n);
+    printFibonacci(n);
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">P056.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P056.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-P056_c', 'P056.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-P056_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P056.c">
+                                            <pre><code class="language-c">/* WAP to swap the value of a and b using user defined method. */
+/* Author - Amit Dutta, Date - 22th November, 2025 */
+
+// This code has not been compiled.
+// If you find any issues, please create a new issue on GitHub regarding them.
+// Go to this link to create a new issue: https://github.com/notamitgamer/bsc/issues
+
+#include &lt;stdio.h&gt;
+
+void swap(int *a, int *b)
+{
+    int temp = *a;
+    *a = *b;
+    *b = temp;
+}
+
+int main()
+{
+    int a, b;
+    printf(&quot;Enter A and B: &quot;);
+    scanf(&quot;%d %d&quot;, &amp;a, &amp;b);
+    printf(&quot;\nBefore swap A: %d, B: %d&quot;, a, b);
+    swap(&amp;a, &amp;b);
+    printf(&quot;\nAfter swap A: %d, B: %d&quot;, a, b);
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">P057.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P057.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-P057_c', 'P057.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-P057_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P057.c">
+                                            <pre><code class="language-c">/* WAP to display the series using user defined method.
+    0, 7, 26, 63, ... upto n terms using void series(int n)
+*/
+/* Author - Amit Dutta, Date - 22th November, 2025 */
+
+// This code has not been compiled.
+// If you find any issues, please create a new issue on GitHub regarding them.
+// Go to this link to create a new issue: https://github.com/notamitgamer/bsc/issues
+
+#include &lt;stdio.h&gt;
+
+void series(int n)
+{
+    int i;
+    printf(&quot;\nSeries:  &quot;);
+    for (i = 1; i &lt;= n; i++)
+        printf(&quot;%d  &quot;, (i * i * i) - 1);
+}
+
+int main()
+{
+    int n;
+    printf(&quot;Enter n: &quot;);
+    scanf(&quot;%d&quot;, &amp;n);
+    series(n);
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+
+                                    <li>
+                                        <div class="flex items-center p-3 pl-8 hover:bg-gray-50 transition-colors duration-200">
+                                            <svg class="w-6 h-6 text-green-500 mr-4 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M7 21h10a2 2 0 002-2V9.414a1 1 0 00-.293-.707l-5.414-5.414A1 1 0 0012.586 3H7a2 2 0 00-2 2v14a2 2 0 002 2z"></path></svg>
+                                            <span class="text-gray-700">P058.c</span>
+                                            <div class="ml-auto flex items-center space-x-4">
+                                                <a href="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P058.c" target="_blank" class="p-1 rounded-full text-gray-500 hover:bg-gray-200 hover:text-gray-800 transition-colors" title="View file on GitHub">
+                                                    <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path fill-rule="evenodd" d="M12 2C6.477 2 2 6.477 2 12c0 4.418 2.865 8.168 6.839 9.492.5.092.682-.217.682-.482 0-.237-.009-.868-.014-1.703-2.782.605-3.369-1.343-3.369-1.343-.454-1.158-1.11-1.466-1.11-1.466-.908-.62.069-.608.069-.608 1.003.07 1.531 1.032 1.531 1.032.892 1.53 2.341 1.088 2.91.832.092-.647.35-1.088.636-1.338-2.22-.253-4.555-1.113-4.555-4.951 0-1.093.39-1.988 1.031-2.688-.103-.253-.446-1.272.098-2.65 0 0 .84-.27 2.75 1.026A9.564 9.564 0 0112 6.844c.85.004 1.705.115 2.504.337 1.909-1.296 2.747-1.027 2.747-1.027.546 1.379.203 2.398.1 2.651.64.7 1.03 1.595 1.03 2.688 0 3.848-2.338 4.695-4.566 4.942.359.308.678.92.678 1.855 0 1.338-.012 2.419-.012 2.747 0 .268.18.58.688.482A10.001 10.001 0 0022 12c0-5.523-4.477-10-10-10z" clip-rule="evenodd"></path></svg>
+                                                </a>
+                                                <button onclick="showCode('code-tuition-c-P058_c', 'P058.c')" class="text-green-600 font-semibold text-sm hover:underline">View Code</button>
+                                            </div>
+                                        </div>
+                                        <div id="code-tuition-c-P058_c" class="hidden" data-github-url="https://github.com/notamitgamer/bsc/blob/main/tuition-c/P058.c">
+                                            <pre><code class="language-c">/* WAP to display ASCII code of Alphabets (A - Z) using void displayASCII() */
+/* Author - Amit Dutta, Date - 22th November, 2025 */
+
+// This code has not been compiled.
+// If you find any issues, please create a new issue on GitHub regarding them.
+// Go to this link to create a new issue: https://github.com/notamitgamer/bsc/issues
+
+#include &lt;stdio.h&gt;
+
+void displayASCII()
+{
+    int i;
+    printf(&quot;ASCII Code\t\tCharacter&quot;);
+    for (i = &#x27;A&#x27;; i &lt;= &#x27;Z&#x27;; i++)
+        printf(&quot;\n%c\t\t%d&quot;, i, i);
+}
+
+int main()
+{
+    displayASCII();
+    return 0;
+}</code></pre>
+                                        </div>
+                                    </li>
+                </ul>
+            </div>
+        </li>
+              </ul>
+            </div>
+          </div>
+          <!-- END INITIAL FILE LIST -->
+        </div>
+        <footer class="text-center py-4 bg-gray-50 border-t">
+          <p class="text-sm text-gray-500">
+            This page is an index for the
+            <a
+              href="https://github.com/notamitgamer/bsc"
+              class="text-blue-600 hover:underline"
+              >bsc repository</a
+            >.
+          </p>
+        </footer>
+      </div>
+    </div>
+
+    <!-- Code Viewer Modal (Enhanced Design) -->
+    <div
+      id="code-modal"
+      class="fixed inset-0 bg-gray-900 bg-opacity-95 flex items-center justify-center p-2 md:p-4 hidden z-50"
+    >
+      <div
+        class="bg-gray-800 text-gray-100 rounded-lg shadow-2xl w-full max-w-5xl modal-content-area flex flex-col"
+      >
+        <!-- Modal Header -->
+        <div
+          class="flex items-center justify-between p-3 md:p-4 border-b border-gray-700 bg-gray-900 rounded-t-lg flex-shrink-0"
+        >
+          <h3
+            id="modal-filename"
+            class="text-sm md:text-lg font-mono text-gray-300 truncate"
+          ></h3>
+          <div class="flex items-center space-x-2 md:space-x-3">
+            <!-- Share Button -->
+            <button
+              id="share-btn"
+              class="bg-gray-700 text-gray-200 p-2 rounded-md hover:bg-gray-600 relative transition-colors"
+              title="Share file link (Copies GitHub URL if sharing is unavailable)"
+            >
+              <svg
+                class="w-4 h-4 md:w-5 md:h-5"
+                fill="none"
+                stroke="currentColor"
+                viewBox="0 0 24 24"
+                xmlns="http://www.w3.org/2000/svg"
+                id="share-icon-default"
+              >
+                <path
+                  stroke-linecap="round"
+                  stroke-linejoin="round"
+                  stroke-width="2"
+                  d="M4 12v8a2 2 0 002 2h12a2 2 0 002-2v-8m-4-6l-4-4-4 4m4-4v13"
+                ></path>
+              </svg>
+              <svg
+                class="w-4 h-4 md:w-5 md:h-5 absolute inset-0 m-auto hidden text-green-400"
+                id="share-icon-success"
+                fill="none"
+                stroke="currentColor"
+                viewBox="0 0 24 24"
+                xmlns="http://www.w3.org/2000/svg"
+              >
+                <path
+                  stroke-linecap="round"
+                  stroke-linejoin="round"
+                  stroke-width="2"
+                  d="M5 13l4 4L19 7"
+                ></path>
+              </svg>
+            </button>
+            <!-- Copy Button -->
+            <button
+              id="copy-code-btn"
+              class="bg-gray-700 text-gray-200 p-2 rounded-md hover:bg-gray-600 relative transition-colors"
+              title="Copy code to clipboard"
+            >
+              <svg
+                xmlns="http://www.w3.org/2000/svg"
+                width="16"
+                height="16"
+                fill="currentColor"
+                class="bi bi-copy w-4 h-4 md:w-5 md:h-5"
+                viewBox="0 0 16 16"
+                id="copy-icon-default"
+              >
+                <path
+                  fill-rule="evenodd"
+                  d="M4 2a2 2 0 0 1 2-2h8a2 2 0 0 1 2 2v8a2 2 0 0 1-2 2H6a2 2 0 0 1-2-2zm2-1a1 1 0 0 0-1 1v8a1 1 0 0 0 1 1h8a1 1 0 0 0 1-1V2a1 1 0 0 0-1-1zM2 5a1 1 0 0 0-1 1v8a1 1 0 0 0 1 1h8a1 1 0 0 0 1-1v-1h1v1a2 2 0 0 1-2 2H2a2 2 0 0 1-2-2V6a2 2 0 0 1 2-2h1v1z"
+                />
+              </svg>
+              <svg
+                class="w-4 h-4 md:w-5 md:h-5 absolute inset-0 m-auto hidden text-green-400"
+                id="copy-icon-success"
+                fill="none"
+                stroke="currentColor"
+                viewBox="0 0 24 24"
+                xmlns="http://www.w3.org/2000/svg"
+              >
+                <path
+                  stroke-linecap="round"
+                  stroke-linejoin="round"
+                  stroke-width="2"
+                  d="M5 13l4 4L19 7"
+                ></path>
+              </svg>
+            </button>
+            <!-- Close Button -->
+            <button
+              onclick="hideCode()"
+              class="text-gray-400 hover:text-white text-2xl md:text-3xl leading-none"
+            >
+              &times;
+            </button>
+          </div>
+        </div>
+        <!-- Modal Body: Code Content -->
+        <div id="modal-body" class="overflow-y-auto flex-grow">
+          <div id="modal-code-container" class="rounded-b-lg">
+            <!-- Code will be injected here -->
+          </div>
+        </div>
+      </div>
+    </div>
+
+    <script>
+      function toggleFolder(folderName) {
+        const content = document.getElementById(`folder-${folderName}`);
+        const chevron = document.getElementById(`chevron-${folderName}`);
+
+        if (content.classList.contains("hidden")) {
+          content.classList.remove("hidden");
+          chevron.classList.add("rotated");
+        } else {
+          content.classList.add("hidden");
+          chevron.classList.remove("rotated");
+        }
+      }
+
+      const modal = document.getElementById("code-modal");
+      const modalFilename = document.getElementById("modal-filename");
+      const modalCodeContainer = document.getElementById(
+        "modal-code-container"
+      );
+
+      const copyBtn = document.getElementById("copy-code-btn");
+      const copyIconDefault = document.getElementById("copy-icon-default");
+      const copyIconSuccess = document.getElementById("copy-icon-success");
+
+      const shareBtn = document.getElementById("share-btn");
+      const shareIconDefault = document.getElementById("share-icon-default");
+      const shareIconSuccess = document.getElementById("share-icon-success");
+
+      let currentFileUrl = "";
+
+      // --- SEARCH IMPLEMENTATION ---
+
+      // Global state for the search index
+      let fileSearchIndex = [];
+      let activeSearchTerm = "";
+      let indexBuilt = false; // Flag for lazy indexing
+
+      /**
+       * Builds the search index from all hidden code blocks on the page.
+       * This should be called only once.
+       */
+      function buildSearchIndex() {
+        if (indexBuilt) return;
+        console.log("Building search index...");
+        const codeBlocks = document.querySelectorAll('[id^="code-"]');
+        codeBlocks.forEach((block) => {
+          const id = block.id;
+          let filename = id.split("-").slice(2).join("-").replace(/_/g, ".");
+          // Handle path structure
+          if (
+            block.dataset.githubUrl &&
+            block.dataset.githubUrl.includes("/main/")
+          ) {
+            filename = block.dataset.githubUrl
+              .split("/")
+              .pop()
+              .replace(/%20/g, " "); // Decode URL for filename
+          } else if (filename.includes(".")) {
+            filename = filename.split("/").pop();
+          }
+
+          const preElement = block.querySelector("pre");
+          const codeElement = block.querySelector("code");
+
+          if (preElement && codeElement) {
+            fileSearchIndex.push({
+              id: id,
+              // Use the path after /main/
+              path: block.dataset.githubUrl.split("/main/")[1] || filename,
+              name: filename,
+              content: codeElement.textContent,
+              lines: codeElement.textContent.split("\n"),
+              language: codeElement.className.split("-").pop(),
+            });
+          }
+        });
+        indexBuilt = true;
+        console.log(`Search index built with ${fileSearchIndex.length} files.`);
+        // Re-run search if user was already typing
+        if (activeSearchTerm.length >= 2) {
+          handleSearch();
+        }
+      }
+
+      /**
+       * Clears the search input and restores the initial file list.
+       */
+      function clearSearch() {
+        document.getElementById("search-input").value = "";
+        activeSearchTerm = "";
+        document.getElementById("clear-search-btn").classList.add("hidden");
+        document.getElementById("initial-file-list").classList.remove("hidden");
+        document
+          .getElementById("search-results-container")
+          .classList.add("hidden");
+
+        // Reset placeholders
+        document.getElementById("result-file-list").innerHTML =
+          '<p id="search-placeholder" class="text-sm text-gray-500">Start typing to see file matches...</p>';
+        document.getElementById("result-code-matches").innerHTML =
+          '<p id="code-match-placeholder" class="text-sm text-gray-500">Select a file from the left to view matching code lines, or refine your search.</p>';
+        document.getElementById("result-count").textContent = "0";
+      }
+
+      /**
+       * Handles the search input event, managing visibility and filtering.
+       */
+      function handleSearch() {
+        const inputElement = document.getElementById("search-input");
+        const query = inputElement.value.trim();
+        activeSearchTerm = query;
+        const initialList = document.getElementById("initial-file-list");
+        const resultsContainer = document.getElementById(
+          "search-results-container"
+        );
+        const codeMatchesContainer = document.getElementById(
+          "result-code-matches"
+        );
+        const clearBtn = document.getElementById("clear-search-btn");
+
+        // Toggle clear button visibility
+        if (query.length > 0) {
+          clearBtn.classList.remove("hidden");
+          // Trigger lazy index build on first meaningful interaction
+          buildSearchIndex();
+        } else {
+          clearBtn.classList.add("hidden");
+        }
+
+        // Clear code matches and placeholder when a new search starts
+        codeMatchesContainer.innerHTML =
+          '<p id="code-match-placeholder" class="text-sm text-gray-500">Select a file from the left to view matching code lines, or refine your search.</p>';
+
+        if (query.length < 2 || !indexBuilt) {
+          initialList.classList.remove("hidden");
+          resultsContainer.classList.add("hidden");
+          document.getElementById("result-file-list").innerHTML =
+            '<p id="search-placeholder" class="text-sm text-gray-500">Start typing to see file matches...</p>';
+          document.getElementById("result-count").textContent = "0";
+          return;
+        }
+
+        initialList.classList.add("hidden");
+        resultsContainer.classList.remove("hidden");
+
+        const lowerQuery = query.toLowerCase();
+
+        const results = fileSearchIndex.filter(
+          (file) =>
+            file.name.toLowerCase().includes(lowerQuery) ||
+            file.path.toLowerCase().includes(lowerQuery) ||
+            file.content.toLowerCase().includes(lowerQuery)
+        );
+
+        displayFileResults(results);
+      }
+
+      /**
+       * Displays the list of files that match the search query (WhatsApp contact list analogy).
+       */
+      function displayFileResults(results) {
+        const fileListContainer = document.getElementById("result-file-list");
+        const resultCount = document.getElementById("result-count");
+
+        resultCount.textContent = results.length;
+        fileListContainer.innerHTML = "";
+
+        if (results.length === 0) {
+          fileListContainer.innerHTML =
+            '<p class="text-sm text-gray-500">No files matched your search term in name or content.</p>';
+          return;
+        }
+
+        const lowerQuery = activeSearchTerm.toLowerCase();
+        // Safe regex for highlighting matches
+        const regex = new RegExp(
+          `(${activeSearchTerm.replace(
+            /([.*+?^=!:${}()|\[\]\/\\])/g,
+            "\\$1"
+          )})`,
+          "gi"
+        );
+
+        results.forEach((file) => {
+          // Decode file name/path for display before highlighting
+          const decodedPath = decodeURIComponent(file.path);
+          const decodedName = decodeURIComponent(file.name);
+
+          const displayName = decodedName.replace(
+            regex,
+            '<span class="bg-yellow-200 font-semibold rounded-sm">$1</span>'
+          );
+          const displayPath = decodedPath.replace(
+            regex,
+            '<span class="bg-yellow-200 font-semibold rounded-sm">$1</span>'
+          );
+
+          const listItem = document.createElement("div");
+          // Add 'active' class capability
+          listItem.className =
+            "search-file-item p-3 rounded-lg shadow-sm cursor-pointer hover:bg-blue-100 transition-colors duration-150 border border-gray-200";
+          listItem.setAttribute("data-file-id", file.id);
+          listItem.innerHTML = `<p class="font-mono text-xs text-blue-600">${displayPath}</p><p class="text-sm font-medium text-gray-800">${displayName}</p>`;
+
+          listItem.onclick = () => {
+            // Remove 'active' state from all others, add to current
+            document
+              .querySelectorAll(".search-file-item")
+              .forEach((el) => el.classList.remove("active"));
+            listItem.classList.add("active");
+            displayCodeMatches(file);
+          };
+
+          fileListContainer.appendChild(listItem);
+        });
+      }
+
+      /**
+       * Displays the actual code lines that contain the search term for a selected file.
+       */
+      function displayCodeMatches(file) {
+        const codeMatchesContainer = document.getElementById(
+          "result-code-matches"
+        );
+        codeMatchesContainer.innerHTML = "";
+        const query = activeSearchTerm.toLowerCase();
+        const regex = new RegExp(
+          `(${activeSearchTerm.replace(
+            /([.*+?^=!:${}()|\[\]\/\\])/g,
+            "\\$1"
+          )})`,
+          "gi"
+        );
+
+        // Title/Header for the Code Matches container
+        const header = document.createElement("div");
+        header.className =
+          "sticky top-0 bg-white p-2 border-b mb-4 -mt-4 -mx-4 z-10 rounded-t-xl";
+
+        const resultsList = document.createElement("div");
+        resultsList.className = "space-y-4 pt-2";
+
+        let matchCount = 0;
+
+        file.lines.forEach((line, index) => {
+          if (line.toLowerCase().includes(query)) {
+            matchCount++;
+
+            const highlightedLine = line.replace(
+              regex,
+              '<span class="bg-yellow-300 rounded-sm font-semibold">$1</span>'
+            );
+
+            const matchItem = document.createElement("div");
+            matchItem.className = "code-match-line";
+            matchItem.innerHTML = `
+                <div class="text-blue-500 mb-1">Line ${index + 1}:</div>
+                <div class="text-gray-700">${highlightedLine}</div>
+            `;
+            resultsList.appendChild(matchItem);
+          }
+        });
+
+        // Update header with file info and match count
+        header.innerHTML = `
+            <h3 class="text-base font-semibold text-gray-800">${decodeURIComponent(
+              file.name
+            )}</h3>
+            <p class="text-xs text-gray-500">${decodeURIComponent(
+              file.path
+            )} &mdash; <span class="text-green-600 font-semibold">${matchCount} matches</span></p>
+        `;
+        codeMatchesContainer.appendChild(header);
+
+        if (matchCount > 0) {
+          codeMatchesContainer.appendChild(resultsList);
+        } else {
+          // Show message if search term matches filename/path but not content (rare, but possible)
+          codeMatchesContainer.innerHTML +=
+            '<p class="text-sm text-gray-500 mt-4">No specific content matches found for this file, but the name/path matched the keyword.</p>';
+        }
+
+        // *** View Full Code Button ***
+        const viewFullCodeButton = document.createElement("button");
+        viewFullCodeButton.className =
+          "mt-6 w-full bg-blue-600 text-white font-semibold py-3 rounded-lg hover:bg-blue-700 transition-colors shadow-lg";
+        viewFullCodeButton.textContent = `View Full Code for ${decodeURIComponent(
+          file.name
+        )}`;
+        viewFullCodeButton.onclick = () => {
+          showCode(file.id, decodeURIComponent(file.name)); // Reuses the existing showCode modal logic
+        };
+        codeMatchesContainer.appendChild(viewFullCodeButton);
+      }
+
+      // --- END SEARCH IMPLEMENTATION ---
+
+      /**
+       * Shows a successful copy animation on a button.
+       */
+      function animateSuccess(button, defaultIcon, successIcon) {
+        defaultIcon.classList.add("hidden");
+        successIcon.classList.remove("hidden");
+
+        button.classList.add("btn-success-pulse");
+        button.classList.remove("bg-gray-700", "hover:bg-gray-600");
+
+        setTimeout(() => {
+          successIcon.classList.add("hidden");
+          defaultIcon.classList.remove("hidden");
+          button.classList.remove("btn-success-pulse");
+          button.classList.add("bg-gray-700", "hover:bg-gray-600");
+        }, 2000);
+      }
+
+      function showCode(codeBlockId, filename) {
+        const codeBlock = document.getElementById(codeBlockId);
+        if (codeBlock) {
+          modalFilename.textContent = filename;
+
+          // Clone the content to avoid issues with highlight.js re-running
+          const codeContentClone = codeBlock
+            .querySelector("pre")
+            .cloneNode(true);
+          modalCodeContainer.innerHTML = ""; // Clear previous content
+          modalCodeContainer.appendChild(codeContentClone);
+
+          currentFileUrl = codeBlock.dataset.githubUrl || "";
+
+          // The highlight.js class is already on the code element in the clone
+          hljs.highlightElement(modalCodeContainer.querySelector("code"));
+
+          modal.classList.remove("hidden");
+          document.body.style.overflow = "hidden";
+
+          // Focus the modal content for better accessibility (optional)
+          modalCodeContainer.querySelector("pre").focus();
+        }
+      }
+
+      function hideCode() {
+        modal.classList.add("hidden");
+        document.body.style.overflow = "auto";
+      }
+
+      copyBtn.addEventListener("click", () => {
+        const codeToCopy = modalCodeContainer.querySelector("code").innerText;
+        navigator.clipboard.writeText(codeToCopy).then(
+          () => {
+            animateSuccess(copyBtn, copyIconDefault, copyIconSuccess);
+          },
+          (err) => {
+            console.error("Failed to copy text: ", err);
+          }
+        );
+      });
+
+      shareBtn.addEventListener("click", async () => {
+        if (!currentFileUrl) return;
+
+        const shareData = {
+          title: modalFilename.textContent,
+          text: `Check out the code for ${modalFilename.textContent}`,
+          url: currentFileUrl,
+        };
+
+        if (navigator.share) {
+          try {
+            await navigator.share(shareData);
+          } catch (err) {
+            if (err.name !== "AbortError") {
+              console.error("Share failed:", err.message);
+            }
+          }
+        } else {
+          navigator.clipboard.writeText(currentFileUrl).then(() => {
+            animateSuccess(shareBtn, shareIconDefault, shareIconSuccess);
+          });
+        }
+      });
+
+      document.addEventListener("keydown", (e) => {
+        const searchInput = document.getElementById("search-input");
+
+        // 1. ESCAPE key closes modal
+        if (e.key === "Escape" && !modal.classList.contains("hidden")) {
+          hideCode();
+          return;
+        }
+
+        // 2. '/' key focuses search bar
+        // Check if the key is '/', the modal is not open, and the current focus is not an input field
+        if (
+          e.key === "/" &&
+          modal.classList.contains("hidden") &&
+          !/^(INPUT|TEXTAREA|SELECT)$/i.test(document.activeElement.tagName)
+        ) {
+          // Prevent the '/' character from being typed outside the input field
+          e.preventDefault();
+          searchInput.focus();
+        }
+      });
+
+      // Initial action: Lazy index building
+      // We don't call buildSearchIndex on load anymore.
+      // It's called on the first time the user types.
+      // This prioritizes page load speed.
+    </script>
+  </body>
+</html>
© notamitgamer • Site Built: 2026-07-21 13:58:23 UTC • git-mirror commit: 1037f62 [view raw info]
Originally created with stagit • modified by notamitgamer
Forked from github.com/notamitgamer/git-mirror