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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3. static const int stala = 1000000;
  4. int main() {
  5.     ios::sync_with_stdio(0);
  6.     cin.tie(0);
  7.     int n;
  8.     cin>>n;
  9.     vector<vector<int>>elo320(n+1,vector<int>(n+1));
  10.     vector<vector<int>>dp(n+1,vector<int>(n+1,0));
  11.     for(int i=1;i<=n;i++){
  12.         for(int j=1;j<=n;j++){
  13.             cin>>elo320[i][j];}}
  14.     if(elo320[1][1]==1){
  15.         cout<<0<<endl;
  16.         return 0;}
  17.     dp[1][1]=1;
  18.     for(int i=1;i<=n;i++){
  19.         for(int j=1;j<=n;j++){
  20.             if(elo320[i][j]==1){
  21.                 dp[i][j]=0;
  22.             }else{
  23.                 if(i>1){
  24.                     dp[i][j]=(dp[i][j]+dp[i-1][j])%stala;}
  25.                 if(j>1){
  26.                     dp[i][j]=(dp[i][j]+dp[i][j-1])%stala;}
  27.         }}}
  28.     cout<<dp[n][n]<<endl;
  29.     return 0;
  30. }
  31.  
Success #stdin #stdout 0.01s 5324KB
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0 1 1 0 0
0 0 1 0 1
0 0 0 0 0
1 0 1 0 0
0 0 0 0 0
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https://ideone.com/PteIQ0
language:
C++ (gcc 8.3)
created:
2 days ago
visibility:
public

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