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  1. #include <iostream>
  2. #include <cstring>
  3. using namespace std;
  4.  
  5. int main() {
  6. 	int n;
  7. 	while( cin >> n && n){
  8. 		int count = 0;
  9. 		char *first = new char[n+1];
  10. 		char *second = new char[n+1];
  11. 		char *third = new char[2 * n+1];
  12. 		char *result = new char[2 * n+1];
  13. 		cin >> first;
  14. 		cin >> second;
  15. 		cin >> third;
  16. 		while(strcmp(result, third) && (count < 51)){
  17. 			for(int i = 0; i < n; i++){
  18. 				result[2 * i] = second[i];
  19. 				result[2 * i + 1] = first[i];
  20. 			}
  21. 			strncpy(first, &result[0], n);
  22. 			strncpy(second, &result[n], n);
  23. 			count++;
  24. 		}
  25. 		cout << ((count < 51) ? count : -1) << endl;
  26. 	}
  27. 	return 0;
  28. }
Success #stdin #stdout 0s 15240KB
comments (?)
stdin
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4
AHAH
HAHA
HHAAAAHH
3
CDE
CDE
EEDDCC
9
ACCABCABC
DEFDEFDEF
ECECECAFAFAFDBDBDB
10
ABCDEFGHCD
AAAAAAAAAA
BDFHDAAAAAACEGCAAAAA
100
ABCDEFGHCDABCDEFGHCDABCDEFGHCDABCDEFGHCDABCDEFGHCDABCDEFGHCDABCDEFGHCDABCDEFGHCDABCDEFGHCDABCDEFGHCD
ABCDEFGHCDABCDEFGHCDABCDEFGHCDABCDEFGHCDABCDEFGHCDABCDEFGHCDABCDEFGHCDABCDEFGHCDABCDEFGHCDABCDEFGHCD
CEGCACEGCACEGCACEGCACEGCADFHDBDFHDBDFHDBDFHDBDFHDBEGCACEGCACEGCACEGCACEGCACFHDBDFHDBDFHDBDFHDBDFHDBDGCACEGCACEGCACEGCACEGCACEHDBDFHDBDFHDBDFHDBDFHDBDFCACEGCACEGCACEGCACEGCACEGDBDFHDBDFHDBDFHDBDFHDBDFH
5
AAAAA
BBBBB
AABBBAAABB
6
AAAAAA
BBBBBB
AAABBBAAABBB
7
AAAAAAA
BBBBBBB
ABBAABBAABBAAB
8
AAAAAAAA
BBBBBBBB
BBAABBAABBAABBAA
9
AAAAAAAAA
BBBBBBBBB
BBBBAAAAABBBBBAAAA
10
AAAAAAAAAA
BBBBBBBBBB
BBAABBAABBAABBAABBAA
0
stdout
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2
-1
-1
5
30
9
11
2
2
8
2
https://ideone.com/JweHpb
language:
C++ (gcc 8.3)
created:
4 years ago
visibility:
secret

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