fork download
copy 
  1. #include <stdio.h>
  2. #include <stdlib.h>
  3.  
  4.  
  5. int myStrlen(char s[]) {
  6.     int i;
  7.     for(i = 0; s[i] != '\0'; i++);  
  8.     return i;  
  9. }
  10.  
  11.  
  12. char *setPalindrome(char s[]) {
  13.     int len = myStrlen(s);  
  14.     int i, j;
  15.  
  16.  
  17.     char *tmp = (char *)malloc(sizeof(char) * (2 * len + 1));  
  18.  
  19.  
  20.     for (i = 0; i < len; i++) {
  21.         tmp[i] = s[i];
  22.     }
  23.  
  24.  
  25.     for (i = 0; i < len - 1; i++) {  
  26.         tmp[len + i] = s[len - 2 - i]; 
  27.     }
  28.  
  29.     tmp[2 * len - 1] = '\0';  
  30.  
  31.     return tmp;  
  32. }
  33.  
  34.  
  35. int main() {
  36.     char nyuryoku[1024];  
  37.     char *kaibun;         
  38.     scanf("%s", nyuryoku);
  39.     kaibun = setPalindrome(nyuryoku);
  40.     printf("%s\n  -> %s\n", nyuryoku, kaibun);
  41.     free(kaibun);
  42.  
  43.     return 0;
  44. }
  45.  
Success #stdin #stdout 0s 5284KB
comments (?)
stdin
copy 
abcdef
stdout
copy 
abcdef
  -> abcdefedcba
https://ideone.com/9ozKjT
language:
C (gcc 8.3)
created:
17 hours ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!