Program to read ‘n’ number and print them in matrix terms in all orders in C++

#include <iostream>
using namespace std;

int main()
{
    int n;

    cout << "Enter the count of numbers you wish to enter\n";  //inputting the numbers

    cin >> n;

    int row[n], col[n], arr[n], j = 0;

    cout << "Enter " << n << " numbers\n";

    for (int i = 0; i < n; ++i)
    {
        cin >> arr[i];
    }

    for (int i = 1; i <= n; ++i)  //finding the factors of n
    {
        if (n % i == 0)
        {
            row[j] = i;  //setting the factor as number of rows
            col[j] = n / i;  //finding corresponding number of columns
            ++j;
        }
    }

    cout << "The numbers can be printed in " << j << " matrices\n";

    for (int i = 0; i <= j; ++i)  //printing the found matrices
    {
        int m = 0;
        for (int r = 0; r < row[i]; ++r)
        {
            for (int c = 0; c < col[i]; ++c)
            {
                cout << arr[m] << " ";
                ++m;
            }
            cout << "\n";
        }
        cout << "\n\n";
    }

    return 0;
}

Output

5
1 2 3 4 5

The numbers can be printed in 2 matrices

1 2
3 4
5

1
2
3
4
5