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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.  
  13. 	int len = myStrlen(s);
  14. 	int i;
  15.  
  16.  
  17. 	tmp = (char *)malloc(sizeof(char) * (2 * len + 1));
  18.  
  19. 	for(i = 0; i < len; i++){
  20. 		tmp[i] = s[i];
  21. 	}
  22.  
  23. 	for(i = 0; i < len; i++){
  24. 		tmp[len + i] = s[len - 1 - i];
  25. 	}
  26.  
  27. 	tmp[2 * len] = '\0';
  28.  
  29. 	return tmp;
  30. }
  31.  
  32.  
  33. int main(){
  34.     int i;
  35.     char nyuryoku[1024]; //入力
  36.     char *kaibun;   //回文を受け取る
  37.     scanf("%s",nyuryoku);
  38.     kaibun = setPalindrome(nyuryoku);
  39.     printf("%s\n  -> %s\n",nyuryoku,kaibun);
  40.     free(kaibun);
  41.     return 0;
  42. }
Success #stdin #stdout 0s 5364KB
comments (?)
stdin
copy 
abcd
stdout
copy 
abcd
  -> abcddcba
https://ideone.com/oJ8a7e
language:
C (gcc 8.3)
created:
2 days ago
visibility:
public

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