// create the grid
for (r=0; r<row; r++)
        for (c=0; c<col; c++)
        {
            grid[r][c] = (r + 1)*(c + 1);
        }
    // print the grid
        for (r = 0; r < row; r++)
        {
            for(c = 0; c < col; c++)
            cout << grid[r][c] << "\t";

            cout << endl;
        }