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  1. using System;
  2.  
  3.  internal class Program
  4.     {
  5.         static void Main()
  6.  
  7.         {
  8.  
  9.             Console.Write("0～65535の数字の入力");
  10.             uint inputNumber;
  11.             if (!uint.TryParse(Console.ReadLine(), out inputNumber)||inputNumber>65535)
  12.             {
  13.                 Console.WriteLine("入力エラー");
  14.             }
  15.             string answer = "";
  16.             for (var i = 1; i <= 4; i++)
  17.             {
  18.  
  19.                 //一番下のけた
  20.                 answer = inputNumber % 2 + answer; inputNumber /= 2;
  21.                 //下から2番目
  22.                 answer = inputNumber % 2 + answer; inputNumber /= 2;
  23.                 //下から3番目
  24.                 answer = inputNumber % 2 + answer; inputNumber /= 2;
  25.                 //下から4番目
  26.                 answer = inputNumber % 2 + answer; inputNumber /= 2;
  27.                 answer = " " + answer;
  28.             }
  29.  
  30.             Console.WriteLine("2進数:{0}", answer);
  31.  
  32.         }
  33.     }
Success #stdin #stdout 0.07s 30208KB
comments (?)
stdin 
65535
stdout 
0～65535の数字の入力2進数: 1111 1111 1111 1111
https://ideone.com/rQ6XSQ
language:
C# (NET 6.0)
created:
286 days ago
visibility:
public

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