C'de pascal üçgeni

#include <stdio.h>

int p(int x,int y)
{
int cx=1,cy=1;
if (y==0) return 1;
for(;y>0;y--,x--)
{
cx=cx*x;
cy=cy*y;
}
return cx/cy;
}

int main()
{
int a,b,c;
printf("enter range:");
scanf("%d",&a);
for(b=0;b<=a;b++)
{
for(c=0;c<=b;c++)
printf("% d",p(b,c));
printf("\n");
}
scanf("%");
}