FINDING NCR FACTOR in c programming language

void main()

{

int n,r,ncr;

clrscr();

printf("Enter any two numbers->");

scanf("%d %d",&n,&r);

ncr=fact(n)/(fact(r)*fact(n-r));

printf("The NCR factor of %d and %d is %d",n,r,ncr);

getch();

}

int fact(int n)

{

int i=1;

while(n!=0)

{

i=i*n;

n--;

}

return i;

}