LINQ パズル

C#

http://www.infoq.com/news/2007/11/Functional-CSharp

int[] b = Enumerable.Range( 1, 20 ).ToArray();

Correct?

using System;
using System.Linq;

class P
{
    static void Main()
    {
        int[] a = new int[ 20 ];
        for ( int x = 0; x < a.Length; x++ )
            a[ x ] = x + 1;

        int[] b = Enumerable.Range( 1, 20 ).ToArray();

        Console.WriteLine( a.SequenceEqual( b ) );
        Console.ReadKey();
    }
}

おまけ

int[] c = new int[ 20 ];
for ( int x = 0; x < c.Length; x++ )
  c[ x ] = x * 2;

int[] d = Enumerable.Range( 0, 20 ).Select( n => n * 2 ).ToArray();
Console.WriteLine( c.SequenceEqual( d ) );