Dynamic allocation of float matrix causes Access violation writing location error

I've received the source code of an MFC application, but when I start it I get an access violation writing location error.

Here below the VS project General configuration: Project configuration

I cannot share the full source code, but the culprit lines are the followings:

#include <iostream>

using namespace std;

int main()
{
    float** ppfPoints[2];
    int maxIteration = 300000;
    for (int i = 0; i < 2; i++)
    {
        ppfPoints[i] = (float**)new float[maxIteration];
        for (int j = 0; j < maxIteration; j++)
        {
            ppfPoints[i][j] = new float[3];
            cout<<j<<" ";
        }
    }
    
    return 0;
}

If I run it on onlinegdb (uncommenting the print) the code stops while printing the value 151479. The fun fact (at least for me) is that if I change the maxIteration value to 50000 the program stops at the value 26598.

In any case onlinegdb says "...Program finished with exit code 0", while on my MSVC compiled application I have the previously mentioned error.

Could anyone help me pointing out where the error is? Thank you in advance!

Here are the problems:

• Casting of a float* to a float**
• Didn't declare the matrix correctly (should be new float*[matrix_height])

#include <iostream>

using namespace std;

int main()
{
    float** ppfPoints = new float*[2]; // array (pointers) of array (pointers) of floats = (float**)
    int maxIteration = 300000;
    for (int i = 0; i < 2; i++)
    {
        ppfPoints[i] = new float[maxIteration]; // returns a pointer to an array of float (float*)
        for (int j = 0; j < maxIteration; j++)
        {
            ppfPoints[i][j] = 0.f; // a float (float)
            cout<<j<<" ";
        }
    }
    
    return 0;
}