fork download
copy 
  1. #include <bits/stdc++.h>
  2. using namespace std;
  3.  
  4. int main() {
  5. 	long long S, N;
  6. 	cin >> S >> N;
  7. 	long long minNum = 1;
  8. 	for (int i = 1; i < S; i++)
  9. 	    minNum *= 10;
  10.  
  11. 	long long k = (minNum + N + 1) / N;
  12. 	long long x = k * N;
  13. 	if (x < pow(10, S - 1)) {
  14. 		cout << x;
  15. 	} else {
  16. 		cout << -1;
  17. 	}
  18.  
  19. 	return 0;
  20. }
Success #stdin #stdout 0s 5320KB
comments (?)
stdin
copy 
3 
6
stdout
copy 
-1
https://ideone.com/sbL7Yy
language:
C++ (gcc 8.3)
created:
7 hours ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!