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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 len=myStrlen(s);
  13. 	int total=len*2;
  14. 	int i;
  15. 	tmp=(char*)malloc(sizeof(char)*(total+1));
  16. 	if(tmp==NULL){
  17. 		return NULL;
  18. 	}
  19.  
  20. 	for(i=0;i<len;i++){
  21. 			tmp[i]=s[i];
  22. 	}
  23.  
  24. 	for(i=0;i<len;i++){
  25. 		tmp[len+i]=s[len-1-i];
  26.  
  27. 	}
  28. 	tmp[total]='\0';
  29. 		return tmp;
  30. 	}
  31.  
  32. int main(){
  33.     int i;
  34.     char nyuryoku[1024]; //入力
  35.     char *kaibun;   //回文を受け取る
  36.     scanf("%s",nyuryoku);
  37.     kaibun = setPalindrome(nyuryoku);
  38.     printf("%s\n  -> %s\n",nyuryoku,kaibun);
  39.     free(kaibun);
  40.     return 0;
  41. }
  42.  
Success #stdin #stdout 0s 5272KB
comments (?)
stdin
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abcd
stdout
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abcd
  -> abcddcba
https://ideone.com/ELweOf
language:
C (gcc 8.3)
created:
1 day ago
visibility:
public

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