patterns - lecture 1 (one mistake to avoid!!)

 #include <iostream>

#include <cmath>

using namespace std;

int main() {

    int n = 4;

    int i;

    // outer loop

    for(i = 1; i <= n; i++){ // mistake int i was present, so 5 was not printing

due to this reason

        int val = i;

        // inner loop

        for(int j = 1; j <= n; j++){

            //work

            cout << val << " ";

        }

        cout << endl;

    }

    cout << i << endl;

    return 0;

}

OUTPUT:-

1 1 1 1 2 2 2 2 3 3 3 3 4 4 4 4 5