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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3. #define int long long
  4.  
  5. int n, m;
  6. int s[1000][1000];
  7. signed main() {
  8. 	ios_base::sync_with_stdio(0);
  9. 	cin.tie(0); cout.tie(0);
  10.  
  11. 	cin>>n>>m;
  12. 	for(int i=0; i<n; i++){
  13. 		for(int j=0; j<m; j++){
  14. 			if(i==0 or j==0)
  15. 				s[i][j]=1;
  16. 			else{
  17. 				s[i][j]=s[i-1][j]+s[i][j-1];
  18. 			}
  19.  
  20.  
  21. 		}
  22. 	}
  23. 	cout<<s[n-1][m-1];
  24. 	return 0;
  25. }
Success #stdin #stdout 0s 5276KB
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https://ideone.com/0WlaCX
language:
C++ (gcc 8.3)
created:
7 days ago
visibility:
public

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