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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 i,j;
  14.  
  15. 	tmp=(char*)malloc(sizeof(char)*(2*len+1));
  16. 	if(tmp==NULL){
  17. 		printf("ERROR\n");
  18. 		return 0;
  19. 	}
  20.  
  21. 	for(i=0;i<len;i++){
  22. 		tmp[i]=s[i];
  23. 	}
  24.  
  25. 	for(j=len-1;j>=0;j--){
  26. 		tmp[i++]=s[j];
  27. 	}
  28.  
  29. 	tmp[i]='\0';
  30.  
  31. 	return tmp;
  32. }
  33.  
  34. int main(){
  35.     int i;
  36.     char nyuryoku[1024]; 
  37.     char *kaibun;   
  38.     scanf("%s",nyuryoku);
  39.     kaibun = setPalindrome(nyuryoku);
  40.     printf("%s\n  -> %s\n",nyuryoku,kaibun);
  41.     free(kaibun);
  42.     return 0;
  43. }
  44.  
Success #stdin #stdout 0s 5284KB
comments (?)
stdin
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abcd
stdout
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abcd
  -> abcddcba
https://ideone.com/KPG8k6
language:
C (gcc 8.3)
created:
5 days ago
visibility:
public

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