Prob1.txt

#include <stdio.h>
int fact(int n)
{
    int f = 1;
    while (n >= 1)
    {
        f = f * n;
        n--;
    }
    return (f);
}

int comb(int n, int r)
{
    return (fact(n) / (fact(n - r) * fact(r)));
}

int main()
{
    int i, j, k, l=0;
    for (i = 1; i <= 5; i++)
    {
        k = 1;
        l=0;
        for (j = 1; j <= 9; j++)
        {
            if (j >= 6 - i && j <= 5 + i && k)
            {
                printf("%d",comb(i-1,l));
                k = 0; l++;
            }
            else
            {
                printf(" ");
                k = 1;
            }
        }
        printf("\n");
    }
}