import java.util.*;
class Factorial1
{
public static void main(String args[])
{
int n,r,nCr,nPr;
Scanner sc = new Scanner(System.in);
System.out.println("Enter the values of n and r to find nCr :");
n=sc.nextInt();
r=sc.nextInt();
nCr=facto(n)/(facto(r)*facto(n-r));
System.out.println("nCr="+nCr);
System.out.println("Enter the values of n and r to find nPr :");
n=sc.nextInt();
r=sc.nextInt();
nPr=facto(n)/facto(n-r);
System.out.println("nPr="+nPr);
}
static int facto (int n)
{
int t,fact=1;
for(i=1;i<=n;i++)
{
fact=fact*i;
}
return fact;
}
}
class Factorial1
{
public static void main(String args[])
{
int n,r,nCr,nPr;
Scanner sc = new Scanner(System.in);
System.out.println("Enter the values of n and r to find nCr :");
n=sc.nextInt();
r=sc.nextInt();
nCr=facto(n)/(facto(r)*facto(n-r));
System.out.println("nCr="+nCr);
System.out.println("Enter the values of n and r to find nPr :");
n=sc.nextInt();
r=sc.nextInt();
nPr=facto(n)/facto(n-r);
System.out.println("nPr="+nPr);
}
static int facto (int n)
{
int t,fact=1;
for(i=1;i<=n;i++)
{
fact=fact*i;
}
return fact;
}
}
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