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  1. #include<bits/stdc++.h>
  2. #define int long long
  3. #define M 1000000007 
  4. using namespace std;
  5.  
  6. signed main(){
  7.     ios::sync_with_stdio(0);
  8.     cin.tie(0);
  9.     cout.tie(0);
  10.  
  11.     int t;
  12.     cin >> t;
  13.     while(t--)
  14.     {
  15.         int n, m, q, a, b;
  16.         cin >> n >> m >> q;
  17.         vector<vector<int>> v(n, vector<int>(m, 0));
  18.         while(q--)
  19.         {
  20.             int a, b;
  21.             cin >> a >> b;
  22.             v[a][b] = -1;
  23.         }
  24.         for(int i = 0;i < n;i++)
  25.         {
  26.             if(v[i][0] == -1)
  27.             {
  28.                 v[i][0]= 0;
  29.                 break;
  30.             }
  31.             v[i][0] = 1;
  32.         }
  33.         for(int i = 0;i < m;i++)
  34.         {
  35.             if(v[0][i] == -1)
  36.             {
  37.                 v[0][i]= 0;
  38.                 break;
  39.             }
  40.             v[0][i] = 1;
  41.         }
  42.         for(int i = 1;i < n;i++)
  43.         {
  44.             for(int j = 1;j < m;j++)
  45.             {
  46.                 if(v[i][j] == -1)
  47.                     v[i][j] = 0;
  48.                 else
  49.                     v[i][j] = ((v[i - 1][j - 1]%M + v[i - 1][j]%M)%M + v[i][j - 1]%M)%M;
  50.             }
  51.         }
  52.         cout << v[n - 1][m - 1] << "\n";
  53.     }
  54.  
  55.     return 0;
  56. }
Success #stdin #stdout 0.01s 5516KB
comments (?)
stdin
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5
5 2 1
2 0
7 3 1
1 0
6 3 1
5 2
2 9 1
0 1
5 6 2
0 1
1 0
stdout
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4
24
0
2
129
https://ideone.com/TohRIv
language:
C++ (gcc 8.3)
created:
1 year ago
visibility:
public

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