triangle.c

void print_triangle(unsigned char width)
{
    unsigned char rows = (width + 1) / 2;
    for (unsigned char i = 0;  i < rows; i++)
    {
        for(unsigned char j = 0; j < rows-i-1; j++)
        {
            printf(" ");
        }
        for(unsigned char k = 0; k < (i*2)+1; k++)
        {
            printf("0");
        }
        printf("\n");
    }
    printf("\n");
}