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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.     char *tmp;
  12.     int i, len;
  13.     len = myStrlen(s);
  14.  
  15.     tmp = (char *)malloc(sizeof(char) * (len * 2 + 1));
  16.  
  17.     for(i=0; i<len; i++){
  18.         tmp[i] = s[i];
  19.     }
  20.  
  21.     for(i=0; i<len; i++){
  22.         tmp[len + i] = s[len - 1 - i];
  23.     }
  24.  
  25.     tmp[len * 2] = '\0';
  26.  
  27.     return tmp;
  28. }
  29.  
  30. int main(){
  31.     int i;
  32.     char nyuryoku[1024];
  33.     char *kaibun;
  34.     scanf("%s",nyuryoku);
  35.     kaibun = setPalindrome(nyuryoku);
  36.     printf("%s\n  -> %s\n",nyuryoku,kaibun);
  37.     free(kaibun);
  38.     return 0;
  39. }
Success #stdin #stdout 0s 5272KB
comments (?)
stdin 
abcd
stdout 
abcd
  -> abcddcba
https://ideone.com/gtMlZ4
language:
C (gcc 8.3)
created:
1 day ago
visibility:
public

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