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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. 	int len = myStrlen(s);
  11. 	char *tmp = (char *)malloc(sizeof(char) * (len * 2 + 1));
  12. 	if (tmp == NULL) return NULL;
  13. 	int i;
  14. 	for (i = 0; i < len; i++) {tmp[i] = s[i];}
  15. 	for (i = 0; i < len; i++) {tmp[len + i] = s[len - 1 - i];}
  16. 	tmp[len * 2] = '\0';
  17. 	return tmp;
  18. }
  19.  
  20.  
  21. //メイン関数はいじる必要はありません
  22. int main(){
  23.     int i;
  24.     char nyuryoku[1024];
  25.     char *kaibun;
  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 0s 5284KB
comments (?)
stdin 
abcd
stdout 
abcd
  -> abcddcba
https://ideone.com/YCtmkh
language:
C (gcc 8.3)
created:
1 day ago
visibility:
public

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