View difference between Paste ID: 9qfwDef6 and 7zgAE9R4

 using System;
 
 class DecimalToBinaryNumber
 {
     static void Main()
     {
         Console.Write("Enter a decimal number : ");
         long num = long.Parse(Console.ReadLine());
 
         string finalNumber = " ";
         while (num > 0)
         {
             if (num % 2 == 0)
             {
                 finalNumber += '0';
                 num = num / 2;
             }
             else
             {
                 finalNumber += '1';
                 num = num / 2;
             }
 
         }
 
         Console.WriteLine(finalNumber);
     }
 }