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  1. #include <stdio.h>
  2.  
  3. int isPalindrome(char s[]){
  4.     int left = 0;
  5.     int right = 0;
  6.  
  7.  
  8.     while(s[right] != '\0'){
  9.         right++;
  10.     }
  11.     right--;
  12.  
  13.     // 左右から比較
  14.     while(left < right){
  15.         if(s[left] != s[right]){
  16.             return 0;
  17.         }
  18.         left++;
  19.         right--;
  20.     }
  21.  
  22.     return 1;
  23. }
  24.  
  25. int main(){
  26.     char s[100];
  27.     scanf("%s",s);
  28.     printf("%s -> %d\n",s,isPalindrome(s));
  29.     return 0;
  30. }
  31.  
Success #stdin #stdout 0s 5324KB
comments (?)
stdin 
girafarig
stdout 
girafarig -> 1
https://ideone.com/3MUbTi
language:
C (gcc 8.3)
created:
5 days ago
visibility:
public

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