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  1. #include <stdio.h>
  2. #include <string.h>
  3.  
  4. int isPalindrome(char s[]) {
  5.     int length = strlen(s);
  6.     int i;
  7.  
  8.     for (i = 0; i < length / 2; i++) {
  9.         if (s[i] != s[length - 1 - i]) {
  10.             return 0;
  11.         }
  12.     }
  13.  
  14.     return 1;
  15. }
  16.  
  17. int main() {
  18.     char s[100];
  19.     printf("文字列を入力してください: ");
  20.     scanf("%s", s);
  21.     printf("%s -> %d\n", s, isPalindrome(s));
  22.     return 0;
  23. }
  24.  
Success #stdin #stdout 0.01s 5284KB
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stdin
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girafarig
stdout
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文字列を入力してください: girafarig -> 1
https://ideone.com/Vm6Oyg
language:
C (gcc 8.3)
created:
3 days ago
visibility:
public

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