AlexandruDu

Problema 1/ 02 martie

Mar 2nd, 2021
819
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  1. #include<iostream>
  2. using namespace std;
  3. int a[21][21],sw;
  4. int b[21][21],n;
  5.  void royfoyd()
  6. { for(int k=1;k<=n;k++)
  7.       for(int i=1;i<=n;i++)
  8.           for(int j=1;j<=n;j++)
  9.               if(b[i][j]&&b[k][j])
  10.                  b[i][j]=1;
  11. }
  12. int circuit()
  13. {
  14.      for(int i=1;i<=n;i++)
  15.         if(b[i][i])
  16.             return 1;
  17.      return 0;
  18. }
  19. int turneu()
  20. {      
  21.       for(int i=1;i<=n;i++)
  22.          for(int j=1;j<=n;j++)
  23.             if(i!=j && a[i][j] +a[i][j]==0)
  24.               return 0;
  25.       return 1;
  26. }
  27. int main()
  28. {
  29.     cin>>n;
  30.     for(int i=1;i<=n;i++)
  31.         for(int j=1;j<=n;j++)
  32.         {
  33.             cin>>a[i][j];
  34.             b[i][j]=a[i][j];
  35.         }
  36.     royfloyd();
  37.  
  38.     cout<<"a) ";
  39.     if(circuit()) cout<<"graful are circuite\n";
  40.     else cout<<"graful nu are circuite\n";
  41.  
  42.     cout<<"b) nu exista drum intre:\n";
  43.     for(int i=1;i<=n;i++)
  44.         for(int j=1;j<=n;j++)
  45.             if(i!=j && !b[i][j])
  46.                 cout<<i<<' '<<j<<'\n';
  47.  
  48.     cout<<"c) ";
  49.     if(turneu()) cout<<"graful este turneu\n";
  50.     else cout<<"graful nu este turneu\n";
  51.  
  52.     cout<<"d) ";
  53.     if(complet()) cout<<"graful este complet\n";
  54.     else cout<<"graful nu este complet\n";
  55.     return 0;
  56. }
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