Dinuka Kasun Medis

package main.scala /** * Created by Dinuka on 4/8/2017. */ object nCr extends App{ print ( "Please input n value :" ) val n = scala.io.StdIn.readInt() print ( "Please input r value :" ) val r = scala.io.StdIn.readInt() def factorial(n: Int):Int = { if (n == 0 ) 1 else n * factorial (n- 1 ) } var answer = factorial ( n )/( factorial ( n - r )* factorial ( r )) println ( "Answer of " + n + "C" + r + " = " + answer ) }