ABC035で実際に使ったプログラムたち。 / C#

A.cs

using System;

  class Program
  {
      static void Main(string[] args)
      {
          var input = Console.ReadLine().Split();
          var W = int.Parse(input[0]);
          var H = int.Parse(input[1]);
          if ( W % 16 != 0 || H % 9 != 0 )
          {
              Console.WriteLine("4:3");
          }
          else
          {
              Console.WriteLine("16:9");
          }
      }

  }

B.cs

using System;

class Program
{
  static void Main(string[] args)
  {
      var S = Console.ReadLine();
      var T = int.Parse(Console.ReadLine());
      int i = 0, x = 0, y = 0, ques = 0;
      do
      {
          switch ( S[i] )
          {
              case 'L':
                  x--;
                  break;
              case 'R':
                  x++;
                  break;
              case 'U':
                  y++;
                  break;
              case 'D':
                  y--;
                  break;
              case '?':
                  ques++;
                  break;
          }
          i++;
      } while ( i < S.Length );
      x = Math.Abs(x);
      y = Math.Abs(y);
      var dist = 0;
      if ( T == 1 )
      {
          dist = x + ques + y;
      }
      else
      {
          dist = Math.Max(x + y - ques, Math.Abs(S.Length) % 2);
      }
      Console.WriteLine(dist);
  }
}

C.cs

using System;

class Program
{
    static void Main(string[] args)
    {
        var input = Console.ReadLine().Split();
        var arr = new int[int.Parse(input[0]) + 2];
        for ( var i = 0; i < int.Parse(input[1]); ++i )
        {
            var act = Console.ReadLine().Split();
            arr[int.Parse(act[0])]++;
            arr[int.Parse(act[1]) + 1]--;
        }

        for ( var i = 1; i < arr.Length - 1; i++ )
        {
            arr[i] += arr[i - 1];
            Console.Write(arr[i] % 2);
        }
        Console.WriteLine();

    }

}