Thread: Making 2D array with malloc()

so I'm trying out some used in malloc and generally understand how to use it for 1d arrays, but having trouble with 2d arrays.

So I just want to to create a 2d array with all 1's. Would also be great to differentiate the first array from the second. I.e. first array has 3 second has 10;

Thanks!!

Code:

#include <iostream>
#include <vector>
#include <algorithm>

using namespace std;

int main()
{
    int ** test;
    int size = 3;
    test = (int**) malloc (size*sizeof(int));

    for(int o = 0; o<size; o++)
    {
        for(int i=0;i<size;i++)
        {
            test[o][i] = 1;
            cout << test[o][i];
        }
    }
    return 0;
}