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  1. #include <iostream>
  2. #include <cstring>
  3. using namespace std;
  4.  
  5. int main() {
  6. 	int n;
  7. 	long long fact = 1;
  8. 	char s[21];
  9. 	cin >> n;
  10. 	cin.get(s, 21);
  11. 	int k = strlen(s) - 1;
  12. 	int start = n % k;
  13. 	if (start == 0) {
  14. 		start += k;
  15. 	}
  16. 	for (int i = start; i <= n; i += k) {
  17. 		fact *= i;
  18. 	}
  19. 	cout << fact << "\n";
  20. 	return 0;
  21. }
Success #stdin #stdout 0.01s 5412KB
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945
https://ideone.com/BPSu9e
language:
C++ (gcc 8.3)
created:
2 years ago
visibility:
public

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