text: #include <iostream>
  
  using namespace std;
  
  #define AMOUNT 5
  
  int main()
  {
    int matrix[AMOUNT][AMOUNT];
  
    for (int i = 0; i < AMOUNT; i++)
    {
      for (int j = 0; j < AMOUNT; j++)
      {
        if (i > j)
        {
          matrix[i][j] = 1;
        }
        else
        {
          matrix[i][j] = 0;
        }
  
        cout << matrix[i][j] << "\t";
      }
  
      cout << endl;
    }
  
    return 0;
  }