Question

How to print all armstrong numbers between 1 to 500 in C#

Answer 1

using System;

class Program
{
    static int armstrong(int n) {
        int result = 0, remainder;  
          
        while(n > 0) {  
            remainder = n % 10;  
            n = n / 10;  
            result += remainder * remainder * remainder;  
        }  
        return result;
    }
    static void Main() {
        // 153 = 1*1*1 + 5*5*5 + 3*3*3 = 153 = armstrong
         
        for (int i = 1; i <= 500; i++)
            if (i == armstrong(i))  
                Console.WriteLine(i);   
    }
}




/*
run:
   
1
153
370
371
407
   
*/

 

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