template<typename T> class Matrix
    {
    public:
        //constructor
        int **m = new int*[_rows];
        for (int i = 0; i < _rows; i++)
        {
             m[i] = new int[_cols];
        }

        //destructor
        for (int i = 0; i < _rows; i++)
        {
            delete[] m[i]
        }
        delete[] m;
    };