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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. // 関数の中でtmpに対してmallocして
  11. // そこに回文を代入してreturnで返しましょう
  12. char *setPalindrome(char s[]){
  13. 	char *tmp;
  14. 	int size;
  15. 	size = myStrlen(s);
  16.  
  17. 	int i, j, ok;
  18. 	for(i=size;i<size*2;i++){
  19. 		ok = 1;
  20. 		for(j=0;j<(i-1-j);j++){
  21. 			if(i-1-j<size&&s[j]!=s[i-1-j]){
  22. 				ok = 0;
  23. 				break;
  24. 			}
  25. 		}
  26. 		if(ok == 1){
  27. 			break;
  28. 		}
  29. 	}
  30.  
  31. 	if ((tmp = (char *)malloc(sizeof(char)*(i+1))) == NULL){
  32. 		printf("ERROR\n");
  33. 		return 0;
  34. 	}
  35.  
  36. 	for(j = 0; j < size; j++){
  37. 		tmp[j] = s[j];
  38. 	}
  39.  
  40. 	for(j=size;j<i;j++){
  41. 		tmp[j] = s[i-1-j];
  42. 	}
  43. 	tmp[i] = '\0';
  44. 	return tmp;
  45. }
  46.  
  47. //メイン関数はいじる必要はありません
  48. int main(){
  49.     //int i;
  50.     char nyuryoku[1024]; //入力
  51.     char *kaibun;   //回文を受け取る
  52.     scanf("%s",nyuryoku);
  53.     kaibun = setPalindrome(nyuryoku);
  54.     printf("%s\n  -> %s\n",nyuryoku,kaibun);
  55.     free(kaibun);
  56.     return 0;
  57. }
Success #stdin #stdout 0s 5348KB
comments (?)
stdin
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Standard input is empty
stdout
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1	�� 
  -> 1	��  ��	1
https://ideone.com/PDNRjI
language:
C (gcc 8.3)
created:
2 days ago
visibility:
public

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