using System;
using System.Collections.Generic;
using System.Linq;

public class Test
{
	public static void Main()
	{
		int[] numbers = { 10, 20, 30, 40, 1, 2, 3, 8 };
 		// Only print items less than 10.
 		var subset = from res in from i in numbers  where i < 10 orderby  i descending select  i*9;
 		foreach (int i in subset)
     		Console.WriteLine("Item: {0}", i);

	}
}

    input
    Output

syntax highlight

    Ошибка компиляции	time: 0.05 memory: 24376 signal:0

    prog.cs(11,28): error CS1525: Unexpected symbol `into'
    Compilation failed: 1 error(s), 0 warnings

    Ошибка компиляции	time: 0.05 memory: 24376 signal:0

    prog.cs(11,95): error CS1525: Unexpected symbol `;', expecting `from', `group', `join', `let', `orderby', `select', or `where'
    Compilation failed: 1 error(s), 0 warnings

    Успешно	time: 0.05 memory: 24376 signal:0

    Item: 72
    Item: 27
    Item: 18
    Item: 9

    Успешно	time: 0.05 memory: 24424 signal:0

    Item: 8
    Item: 3
    Item: 2
    Item: 1

    Ошибка компиляции	time: 0 memory: 0 signal:0

    prog.cs(10,36): error CS1935: An implementation of `Where' query expression pattern could not be found. Are you missing `System.Linq' using directive or `System.Core.dll' assembly reference?
    Compilation failed: 1 error(s), 0 warnings

    Ошибка компиляции	time: 0 memory: 0 signal:0

    prog.cs(10,49): error CS1935: An implementation of `Where' query expression pattern could not be found. Are you missing `System.Linq' using directive or `System.Core.dll' assembly reference?
    Compilation failed: 1 error(s), 0 warnings

Ошибка компиляции	#stdin compilation error	#stdout 0s 0KB
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stdin
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сообщения компилятора

prog.cs(9,4): error CS0246: The type or namespace name `IEnumerable' could not be found. Are you missing `System.Collections.Generic' using directive?
prog.cs(10,22): error CS0841: A local variable `subset' cannot be used before it is declared
Compilation failed: 2 error(s), 0 warnings

stdout

Standard output is empty

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