[C++] Make 2-dimensional array

#include <iostream>

using namespace std;


void makeArrayOfArray(int ***newArray, int x, int y)
{
    int *arrPointer;

    *newArray = new int*[x];
    arrPointer = **newArray;

    for (int i = 0; i < x; i++)
    {
        arrPointer = new int[y];
        (*newArray)[i] = arrPointer;
        arrPointer++;
    }
}

void fillArray(int **arrayToFill, int x, int y)
{
    for (int i = 0; i < x; i++)
    {
        for (int j = 0; j < y; j++)
        {
            arrayToFill[i][j] = (i+1)*(j+1);
        }
    }
    cout << "done ";
}

void showArray(int **arrayToShow, int x, int y)
{
    for (int i = 0; i < x; i++)
    {
        for (int j = 0; j < y; j++)
        {
            cout << arrayToShow[i][j] << " ";
        }
        cout << endl;
    }
}

void deleteArray(int ***arrayToDelete, int x)
{
    for (int i = 0; i < x; i++)
    {
        delete [] (*arrayToDelete)[i];
    }
    delete [] (*arrayToDelete);
}

int main()
{
    int x, y;
    int **arr;

    arr = NULL;

    cout << "Wczytaj pierwszy wymiar: ";
    cin >> x;
    cout << "Wczytaj drugi wymiar: ";
    cin >> y;

    makeArrayOfArray(&arr, x, y);
    fillArray(arr, x, y);
    showArray(arr, x, y);


    deleteArray(&arr, x);

    return 0;
}