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  1. #include <stdio.h>
  2. #include <stdlib.h>
  3.  
  4. int myStrlen(char s[])
  5. {
  6. 	int i;
  7. 	for(i=0;s[i]!='\0';i++);
  8. 	return i;
  9. }
  10.  
  11. char *setPalindrome(char s[])
  12. {
  13. 	int len=myStrlen(s);
  14. 	int i,j;
  15. 	char *tmp=(char *)malloc(2*len+1);
  16. 	if(tmp==NULL)
  17. 	{
  18. 		return NULL;
  19. 	}
  20. 	for(i=0;i<len;i++)
  21. 	{
  22. 		tmp[i]=s[i];
  23. 	}
  24. 	j=0;
  25. 	for(i=len-1;i>=0;i--)
  26. 	{
  27. 		tmp[len+j]=s[i];
  28. 		j++;
  29. 	}
  30. 	tmp[2*len]='\0';
  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 5280KB
comments (?)
stdin
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abcd
stdout
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abcd
  -> abcddcba
https://ideone.com/jf7QqN
language:
C (gcc 8.3)
created:
4 days ago
visibility:
public

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