Найти произведение элементов матрицы

#include <iostream>
#include <cstdlib>
#include <ctime>
 
int main()
{
    std::cout << "Matrix\n\n";
 
    int** x = new int*[6];
    for (int i = 0; i < 6; i++) { x[i] = new int[6]; }
    int** y = new int*[4];
    for (int i = 0; i < 4; i++) { y[i] = new int[4]; }
 
    srand(time(NULL));
 
    for (int i = 0; i < 6; i++) for (int j = 0; j < 6; j++) x[i][j] = rand() % 30 - 15;
    for (int i = 0; i < 4; i++) for (int j = 0; j < 4; j++) y[i][j] = rand() % 30 - 15;
 
    int sumX = 0;
    int sumY = 0;
    std::cout << "X\n";
    for (int i = 0; i < 6; i++)
    {
        for (int j = 0; j < 6; j++)
        {
            std::cout.width(4);
            std::cout << x[i][j];
            if (x[i][j] > 0) sumX += x[i][j];
        }
        std::cout << "\n";
    }
    std::cout << "Y\n";
    for (int i = 0; i < 4; i++)
    {
        for (int j = 0; j < 4; j++)
        {
            std::cout.width(4);
            std::cout << y[i][j];
            if (y[i][j] > 0) sumY += y[i][j];
        }
        std::cout << "\n";
    }
 
    std::cout << "\n";
    if (sumX > sumY) std::cout << "Sum(x)=" << sumX << " > Sum(y)=" << sumY << "\n";
    else if (sumX < sumY) std::cout << "Sum(x)=" << sumX << " < Sum(y)=" << sumY << "\n";
    else std::cout << "Sum(x)=" << sumX << " = Sum(y)=" << sumY << "\n";
 
 
    for (int i = 0; i < 6; i++) { delete x[i]; }
    delete x;
    for (int i = 0; i < 4; i++) { delete y[i]; }
    delete y;
    system("pause");
}