using System;

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

​

namespace FactPowerOfNumber

{

    public class Program

    {

        public int factorial(int n)

        {

            return (n == 1 || n == 0) ? 1 : n * factorial(n - 1);

        } 

        public static int power(int x,int y){

            return (y == 0) ? 1 : x * power(x, y - 1);

​

        }

        public static void Main(string[] args)

        {

            Console.WriteLine(".....Factorial Number.....");

            Console.WriteLine("___________________________");

            Console.WriteLine("Enter Number:");

            int num = Convert.ToInt32(Console.ReadLine());

            Program obj = new Program();

            Console.WriteLine("Factorial of " + num + " is " + obj.factorial(num));

            Console.WriteLine("-----------------------------");

            Console.WriteLine("......Power of Number......");

            Console.WriteLine("___________________________");

            Console.WriteLine(" Input the base  value : ");

            int bNum = Convert.ToInt32(Console.ReadLine());

            Console.WriteLine(" Input the exponent : ");

            int pwr = Convert.ToInt32(Console.ReadLine());

            int result = power(bNum, pwr);

            Console.WriteLine(" The value of {0} to the power of {1} is : {2} \n\n", bNum, pwr, result);

            Console.ReadLine();

        }

    }

}

​