print char array

test.c

#include <unistd.h>
void ft_putchar(c)
{
    write(1, &c, 1);
}

void    print_array(char *arr)
{
    int x;
    int y;

    y = 0;
    while (y < 9)
    {
        x = 0;
        while (x < 9)
        {
            ft_putchar(arr[x + y * 9]);
            if (x < 8)
                ft_putchar(' ');
            x++;
        }
        if (y < 8)
            ft_putchar('\n');
        y++;
    }
}

int main()
{
    // char **b = malloc(81 * sizeof(char));

    char b[9][9] = {{'1','2','3','4','5','6','7','8','9'},{'1','2','3','4','5','6','7','8','9'},{'1','2','3','4','5','6','7','8','9'},{'1','2','3','4','5','6','7'\
,'8','9'},{'1','2','3','4','5','6','7','8','9'},{'1','2','3','4','5','6','7','8','9'},{'1','2','3','4','5','6','7','8','9'},{'1','2','3','4','5','6','7','8','9'},\
{'1','2','3','4','5','6','7','8','9'}};
    print_array((char*)b);
    return(0);
}