01 #include <stdio.h>
02 #include <string.h>
03 
04 int main()
05 {
06     char a[100], b[100];
07     printf("Enter the string to check if it is a palindromen");
08     gets(a);
09     strcpy(b,a);
10     strrev(b);
11     if( strcmp(a,b) == 0 )
12         printf("Entered string is a palindrome.n");
13     else
14         printf("Entered string is not a palindrome.n");
15     return 0;
16 }

 OUTPUT :
 
 (1st Run)
 
 Enter the string to check if it is a palindrome
 
 RADAR
 
 Entered string is a palindrome.
 
 
 (2nd Run)
 
 Enter the string to check if it is a palindrome
 
 Hello
 
 Entered string is not a palindrome.