Number pyramid C++

#include <iostream>
using namespace std;
int main()
{
    int n;
    cin >> n;

    int num = 1, col = 1, max_col = 1;
    while (num <= n)
    {
        cout << num++;
        if (++col > max_col)
        {
            cout << endl;
            col = 1;
            max_col++;
        }
        else
            cout << ' ';
    }

    return 0;
}