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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. char *setPalindrome(char s[]) {
  10.     char *tmp;
  11.     int len = myStrlen(s); 
  12.     int i, j;
  13.  
  14.     tmp = (char *)malloc((2 * len + 1) * sizeof(char)); 
  15.  
  16.     for (i = 0; i < len; i++) {
  17.         tmp[i] = s[i];
  18.     }
  19.     for (j = len - 1; j >= 0; j--) {
  20.         tmp[i++] = s[j];
  21.     }
  22.  
  23.     tmp[i] = '\0';
  24.  
  25.     return tmp;
  26. }
  27.  
  28. int main() {
  29.     int i;
  30.     char nyuryoku[1024]; 
  31.     char *kaibun;        
  32.     scanf("%s", nyuryoku);
  33.     kaibun = setPalindrome(nyuryoku);
  34.     printf("%s\n  -> %s\n", nyuryoku, kaibun);
  35.     free(kaibun);
  36.     return 0;
  37. }
  38.  
Success #stdin #stdout 0s 5276KB
comments (?)
stdin
copy 
abcd
stdout
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abcd
  -> abcddcba
https://ideone.com/QLOvt9
language:
C (gcc 8.3)
created:
5 days ago
visibility:
public

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