TaskH

#include <iostream>

using namespace std;

int main()
{
    int n;
    cin >> n;
    int** matr;
    matr = new int* [n];
    for (int i = 0; i < n; i++)
    {
        matr[i] = new int[n];
        for (int j = 0; j < n; j++)
        {
            cin >> matr[i][j];
            if (j >= i)
                matr[i][j] = 1;
        }
    }
    for (int i = 0; i < n; i++)
    {
        for (int j = 0; j < n; j++)
            cout << matr[i][j] << " ";
        cout << endl;
    }
}