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  1. #include <stdio.h>
  2. #include <stdlib.h>
  3.  
  4. int myStrlen(char s[]){
  5.     int i;
  6.     for(i = 0; s[i] != '\0'; i++);
  7.     return i;
  8. }
  9.  
  10. char *setPalindrome(char s[]){
  11.     int len = myStrlen(s);
  12.     char *tmp = (char *)malloc((2 * len + 1) * sizeof(char));
  13.     if (tmp == NULL) return NULL;
  14.  
  15.     for (int i = 0; i < len; i++) {
  16.         tmp[i] = s[i];
  17.     }
  18.     for (int i = 0; i < len; i++) {
  19.         tmp[len + i] = s[len - i - 1];
  20.     }
  21.     tmp[2 * len] = '\0';
  22.  
  23.     return tmp;
  24. }
  25.  
  26. int main(){
  27.     int i;
  28.     char nyuryoku[1024];
  29.     char *kaibun;
  30.     scanf("%s", nyuryoku);
  31.     kaibun = setPalindrome(nyuryoku);
  32.     if (kaibun != NULL) {
  33.         printf("%s\n  -> %s\n", nyuryoku, kaibun);
  34.         free(kaibun);
  35.     }
  36.     return 0;
  37. }
Success #stdin #stdout 0.01s 5276KB
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takayuki
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takayuki
  -> takayukiikuyakat
https://ideone.com/z4E74q
language:
C (gcc 8.3)
created:
5 days ago
visibility:
public

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