Programming in c++ patterns with numbers,with for loop in c++ [closed]

Can someone please explain me how can I create different patterns with numbers in c++ using for loop. Because I cant understand the logic. Thank you. For example 55555 54444 54333 54322 54321 or

12345 23455 34555 45555 55555 this is the code of an example

#include <iostream>
using namespace std;
int main()
{
    int i, j, n;
    cout << "\n Jepe n (numrin e reshtave dhe kolonave)";
    cin >> n;
    for (i = 1; i <= n; i++)
    {
        for (j = 1; j <= n; j++)
            if (i % 2 != 0)
                cout << "1" << " ";
            else cout << "0" << " ";
        cout << endl;
    }
}