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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.  
  11. char *setPalindrome(char s[]){
  12. 	char *tmp;
  13. 	int i,t;
  14. 	t=myStrlen(s);
  15. 	tmp=(char *)malloc(sizeof(char)*(2*t+1));
  16. 	if(tmp==NULL){
  17. 		printf("ERROR\n");
  18. 		return NULL;
  19. 	}
  20. 	for(i=0;i<t;i++) tmp[i]=s[i];
  21. 	for(i=0;i<t;i++) tmp[t+i]=s[t-1-i];
  22. 	tmp[2*t]='\0';
  23. 	return tmp;
  24. }
  25.  
  26.  
  27. //メイン関数はいじる必要はありません
  28. int main(){
  29.     int i;
  30.     char nyuryoku[1024]; //入力
  31.     char *kaibun;   //回文を受け取る
  32.     scanf("%s",nyuryoku);
  33.     kaibun = setPalindrome(nyuryoku);
  34.     printf("%s\n  -> %s\n",nyuryoku,kaibun);
  35.     free(kaibun);
  36.     return 0;
  37. }
  38.  
Success #stdin #stdout 0s 5304KB
comments (?)
stdin
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abcd
stdout
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abcd
  -> abcddcba
https://ideone.com/cNUpiP
language:
C (gcc 8.3)
created:
12 days ago
visibility:
public

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