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  1. #include <iostream>
  2. #include <cstdio>
  3. #include <cstring>
  4. #define lli long long int
  5. using namespace std;
  6.  
  7. lli RevCount (char *s, lli f, lli l);
  8.  
  9. int main () {
  10.  
  11.   	char Word[30];
  12.   	int flag, i;
  13.  
  14. 	while (scanf ("%s",Word),strcmp (Word,"*END*")!=0) 
  15. 	{
  16. 		flag = 0;
  17. 		for (i=1;i<strlen(Word); i++) 
  18. 		{ /* check each possibility */
  19. 			if (RevCount (Word,0,i-1) && RevCount (Word,i,strlen(Word)-1)) 
  20. 			{
  21. 				flag = 1;
  22. 				break;
  23. 			}
  24. 		}
  25. 		if (flag)
  26. 		printf ("%s YES\n",Word);
  27. 		else
  28. 		printf ("%s NO\n",Word);
  29. 	}
  30.  return 0;
  31. }
  32.  
  33. lli RevCount (char *s, lli first, lli last) {
  34.  
  35.   lli i, ct=0;
  36.  
  37.  for (i=first; i < first+(last-first+1)/2; i++)
  38.   ct += s[i] != s[first+last-i]; /* count differences */
  39.  if(ct==1 || (ct==0 && (last-first)%2==0))
  40. 	return 1;
  41. else
  42. 	return 0;
  43.  
  44. }
Success #stdin #stdout 0s 2732KB
comments (?)
stdin
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BATMAN
SUPERMAN
*END*
stdout
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BATMAN YES
SUPERMAN NO
https://ideone.com/px345l
language:
C++ 4.3.2 (gcc-4.3.2)
created:
8 years ago
visibility:
secret

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