char **generate_grid_entries(height, width)
{
        char **grid_entries = NULL;
        char *grid_space = NULL;
        int row, col;

        grid_space = malloc(sizeof(char) * height * width);
        grid_entries = malloc(sizeof(char *) * height);

        for (row = 0; row < height; row++)
                grid_entries[row] = grid_space + (row * width);

        for (row = 0; row < height; row++)
                for (col = 0; col < width; col++)
                        grid_entries[row][col] = \
                                ALPHABET[((row * height) + col) % \
                                         ALPHABET_LENGTH];

        return grid_entries;
}

void print_grid(struct grid grd)
{
        int i, j;
        for (i = 0; i < grd.height; i++) {
                for (j = 0; j < grd.width; j++)
                        printf("%c ", *((*grd.entries)++));
                printf("\n");
        }
}