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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,j,size;
  14. 	size=myStrlen(s);
  15. 	tmp=(char*)malloc(sizeof(char)*(size*2+1));
  16. 	if(tmp==NULL){  
  17. 		printf("ERROR\n");
  18. 		return 0;
  19. 	}
  20. 	for(i=0;i<size;i++){
  21. 		tmp[i]=s[i];
  22. 	}
  23. 	for(i=0,j=size;i<size;i++,j++){
  24. 		tmp[j]=tmp[size-1-i];
  25. 	}
  26. 	tmp[size*2]='\0';
  27. 	return tmp;
  28. }
  29.  
  30.  
  31. //メイン関数はいじる必要はありません
  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 544KB
comments (?)
stdin
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abcd
stdout
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abcd
  -> abcddcba
https://ideone.com/EUXi4u
language:
C (gcc 8.3)
created:
2 days ago
visibility:
public

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