fork download
copy 
  1. #include <stdio.h>
  2. #include <string.h>
  3.  
  4. int testPalindrome(const char str[], int start, int end) {
  5.     if (start >= end) {
  6.         return 1;
  7.     }
  8.     if (str[start] != str[end]) {
  9.         return 0;
  10.     }
  11.     return testPalindrome(str, start + 1, end - 1);
  12. }
  13.  
  14. int main(void) {
  15.     char text[] = "radar";
  16.     int len = strlen(text);
  17.  
  18.     if (testPalindrome(text, 0, len - 1)) {
  19.         printf("It is a palindrome\n");
  20.     } else {
  21.         printf("It is not a palindrome\n");
  22.     }
  23.  
  24.     return 0;
  25. }
Success #stdin #stdout 0s 5312KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
It is a palindrome
https://ideone.com/drOGuf
language:
C (gcc 8.3)
created:
1 hour ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!