Submission #1372226

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Source Code Expand

#include <iostream>
#include <vector>
using namespace std;


int main() {
  int W, H, mod=0;
  cin >>W >> H;
  vector<vector <int> > box=vector<vector< int> >(W+2, vector<int>(H+2, 1) );

  for( int i = 1; i < W; ++i){
    for (int j = 1; j < H; ++j){
      box[i+1][j+1] = (box[i+1][j]+box[i][j+1])%1000000007;
    }
  }
  cout<<box[W][H]<<endl;

  return 0;
}

Submission Info

Judge Result