Armstrong Number In C#

Before going to write the C# program to check whether the number is Armstrong or not, let's understand what is Armstrong number.

Armstrong number is a number that is equal to the sum of cubes of its digits. For example 0, 1, 153, 370, 371 and 407 are the Armstrong numbers.

Let's try to understand why 371 is an Armstrong number.

Example


371 = (3*3*3)+(7*7*7)+(1*1*1)    

where:    

(3*3*3)=27    

(7*7*7)=343    

(1*1*1)=1    

So:    

27+343+1=371

Let's see the C# program to check Armstrong Number.

Example


using System;

  public class ArmstrongExample

   {

     public static void Main(string[] args)

      {

       int  n,r,sum=0,temp;    

       Console.Write("Enter the Number= ");    

       n= int.Parse(Console.ReadLine());   

       temp=n;    

       while(n>0)    

       {    

        r=n%10;    

        sum=sum+(r*r*r);    

        n=n/10;    

       }    

       if(temp==sum)    

        Console.Write("Armstrong Number.");    

       else    

        Console.Write("Not Armstrong Number.");    

      }

  }

Output:

Output


Enter the Number= 371

Armstrong Number.

Example


Enter the Number= 342   

Not Armstrong Number.

Example

Input Required