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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3.  
  4. int total_test;
  5.  
  6. int main()
  7. {
  8.     ios::sync_with_stdio(0);
  9.     cin.tie(0); cout.tie(0);
  10.  
  11.     cin>>total_test;
  12.     while(total_test--)
  13.     {
  14.         int n;
  15.         cin>>n;
  16.         int a[n+5][n+5];
  17.         int col[n+5];
  18.         int row[n+5];
  19.         int d1[2*n + 5], d2[2*n + 5];
  20.         for(int i = 1; i <= n; i++)
  21.         {
  22.             row[i] = 0;
  23.             for(int j = 1; j <= n; j++)
  24.             {
  25.                 col[j] = 0;
  26.                 d1[n - i + j] = 0;
  27.                 d2[n - i + j] = 0;
  28.             }
  29.         }
  30.         for(int i = 1; i <= n; i++)
  31.         {
  32.             for(int j = 1; j <= n; j++)
  33.             {
  34.                 cin>>a[i][j];
  35.                 row[i] += a[i][j];
  36.                 col[j] += a[i][j];
  37.                 d1[n - i + j] += a[i][j];
  38.                 d2[n + i - j] += a[i][j];
  39.             }
  40.         }
  41.  
  42.         bool check = true;
  43.         //row, col
  44.         for(int i = 1; i <= n; i++)
  45.         {
  46.             if(row[i] > 1 || col[i] > 1)
  47.             {
  48.                 check = false;
  49.             }
  50.         }
  51.         //diagonal
  52.         for(int i = 1; i <= 2*n - 1; i++)
  53.         {
  54.             if(d1[i] > 1 || d2[i] > 1)
  55.             {
  56.                 check = false;
  57.             }
  58.         }
  59.         cout<<check<<endl;
  60.     }
  61. }
  62.  
Success #stdin #stdout 0.01s 5284KB
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https://ideone.com/nkOwLL
language:
C++14 (gcc 8.3)
created:
217 days ago
visibility:
public

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