commit f08d6a1152c338ddf5c336d460cec632b721854a
parent 3f0a877b48ffcf71d451fb3c183603e0400ed316
Author: Amit Dutta <amitdutta4255@gmail.com>
Date: Mon, 8 Dec 2025 21:17:00 +0530
[2025-12-08] .\assignment\assignment13.c: New file for assignment 13
Diffstat:
2 files changed, 127 insertions(+), 0 deletions(-)
diff --git a/assignment/assignment13.c b/assignment/assignment13.c
@@ -0,0 +1,66 @@
+/* Write a C program that accepts a string as a command line argument and includes a user-
+defined function named isPalindrome with the signature int isPalindrome(char str[]);.
+The function should check if the given string is a palindrome and return 1 if it is, and 0
+otherwise. */
+
+#include <stdio.h>
+#include <stdlib.h>
+
+int isPalindrome(char[]);
+
+int main(int argc, char *argv[])
+{
+ if (argc != 2)
+ {
+ printf("\nUsage: %s <string>\n", argv[0]);
+ return 1;
+ }
+ if (isPalindrome(argv[1]))
+ {
+ printf("\nThe entered string \"%s\" is a Palindrome.\n", argv[1]);
+ }
+ else
+ {
+ printf("\nThe entered string \"%s\" is not Palindrome.\n", argv[1]);
+ }
+ return 0;
+}
+
+int isPalindrome(char str[])
+{
+ char *start = str;
+ char *end = str;
+ if (*end != '\0')
+ {
+ while (*(end + 1) != '\0')
+ {
+ end++;
+ }
+ }
+ else
+ {
+ return 1;
+ }
+ /*
+ Or we can use string.h instead of from line 33 to line 43 like this ...
+
+ char *end;
+ int len = strlen(str);
+ if (len == 0)
+ {
+ return 1;
+ }
+ end = str + (len - 1);
+
+ */
+ while (start < end)
+ {
+ if (*start != *end)
+ {
+ return 0;
+ }
+ start++;
+ end--;
+ }
+ return 1;
+}+
\ No newline at end of file
diff --git a/tuition-c/APC-PRAC-042.c b/tuition-c/APC-PRAC-042.c
@@ -0,0 +1,59 @@
+/* Write a function to check whether a given string is a palindrome. Use this function to
+determine whether an entered string is Palindrome. */
+
+#include <stdio.h>
+#include <string.h>
+
+int isPalindrome(char[]);
+
+int main()
+{
+ char input[100];
+ int len;
+
+ printf("Enter the string (Max: 100 Character): ");
+ fgets(input, sizeof(input), stdin);
+ len = strlen(input);
+
+ if (len > 0 && input[len - 1] == '\n')
+ {
+ input[len - 1] = '\0';
+ }
+
+ if (isPalindrome(input))
+ {
+ printf("\nInput string \"%s\" is Palindrome.", input);
+ }
+ else
+ {
+ printf("\nInput string \"%s\" is not Palindrome", input);
+ }
+
+ return 0;
+}
+
+int isPalindrome(char str[])
+{
+ char *start = str;
+ char *end;
+ int len = strlen(str);
+
+ if (len == 0)
+ {
+ return 1;
+ }
+
+ end = str + (len - 1);
+
+ while (start < end)
+ {
+ if (*start != *end)
+ {
+ return 0;
+ }
+ start++;
+ end--;
+ }
+
+ return 1;
+}+
\ No newline at end of file
