commit 79e7c4966d4f556c58341db3e36017520f2d1482
parent 7bca45b494cfb61b9319462f6c6a14f9f8060bba
Author: Amit Dutta <amitdutta4255@gmail.com>
Date: Tue, 2 Jun 2026 21:20:50 +0530
added more
Diffstat:
3 files changed, 78 insertions(+), 0 deletions(-)
diff --git a/semester_1/practice-c/external_4.c b/semester_1/practice-c/external_4.c
@@ -0,0 +1,28 @@
+// 4. Write a function to find whether a given number is prime or not. Use it to generate prime numbers less than 100.
+
+#include<stdio.h>
+
+int isPrime(int);
+
+int main() {
+ int num, i;
+ printf("Enter the number: ");
+ scanf("%d", &num);
+ if(isPrime(num)) printf("\n%d is a prime number.", num);
+ else printf("\n%d is not a prime number.", num);
+
+ // generate prime numbers upto 100
+ printf("\n\nPrime number upto 100: ");
+ for(i = 1; i <= 100; i++) {
+ if(isPrime(i)) printf("\n%d ", i);
+ }
+ return 0;
+}
+
+int isPrime(int n) {
+ int i;
+ if(n == 2) return 1;
+ if(n <= 1 || n % 2 == 0) return 0;
+ for(i = 3; i * i <= n; i = i+2) if(n % i == 0) return 0;
+ return 1;
+}+
\ No newline at end of file
diff --git a/semester_1/practice-c/external_5.c b/semester_1/practice-c/external_5.c
@@ -0,0 +1,28 @@
+// 5. Write a function that checks whether a given string is a Palindrome or not.
+
+#include<stdio.h>
+#include<string.h>
+#include<ctype.h>
+
+int isPalindrome(char []);
+
+int main() {
+ char str[50];
+ printf("Enter the string (upto 50 char): ");
+ fgets(str, sizeof(str), stdin);
+ if(str[strlen(str) - 1] == '\n') str[strlen(str) - 1] = '\0';
+ if(isPalindrome(str)) printf("\n\"%s\" is palindrome.", str);
+ else printf("\n\"%s\" is not palindrome.", str);
+ return 0;
+}
+
+int isPalindrome(char str[]) {
+ int len = strlen(str);
+ int start = 0, end = len - 1;
+ while(start < end) {
+ if(tolower(*(str + start)) != tolower(*(str + end))) return 0;
+ start++;
+ end--;
+ }
+ return 1;
+}+
\ No newline at end of file
diff --git a/utils/generate_structure.py b/utils/generate_structure.py
@@ -0,0 +1,19 @@
+import os
+
+def save_structure_to_txt(target_dir, output_file):
+ with open(output_file, 'w', encoding='utf-8') as f:
+ for root, dirs, files in os.walk(target_dir):
+ level = root.replace(target_dir, '').count(os.sep)
+ indent = ' ' * level
+ f.write(f"{indent}{os.path.basename(root)}/\n")
+ for file in files:
+ f.write(f"{indent} {file}\n")
+
+target = r'G:\bsc'
+output = 'directory_structure.txt'
+
+if os.path.exists(target):
+ save_structure_to_txt(target, output)
+ print(f"Structure saved to {output}")
+else:
+ print(f"The path {target} does not exist.")+
\ No newline at end of file
