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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 j=myStrlen(s);
  13.     tmp=(char*)malloc(sizeof(char)*(j*2+1));
  14.     for(int x=0;x<j;x++){
  15.        tmp[x]=s[x];
  16.     }
  17.     for(int y=0;y<j;y++){
  18.        tmp[j+y]=s[j-y-1];
  19.     }
  20. }
  21.  
  22. int main(){
  23.     int i;
  24.     char nyuryoku[1024]; //入力
  25.     char *kaibun;   //回文を受け取る
  26.     scanf("%s",nyuryoku);
  27.     kaibun = setPalindrome(nyuryoku);
  28.     printf("%s\n  -> %s\n",nyuryoku,kaibun);
  29.     free(kaibun);
  30.     return 0;
  31. }
  32.  
Success #stdin #stdout 0.01s 5284KB
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stdin
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abcd
stdout
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abcd
  -> (null)
https://ideone.com/xpOJFi
language:
C (gcc 8.3)
created:
1 day ago
visibility:
public

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