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  1. using System;
  2. using System.Collections.Generic;
  3.  
  4. public class Program
  5. {
  6.     public static void Main()
  7.     {
  8.         IEnumerable<int> xs = new int[] { 1, 2, 3, 4, 5 };
  9.         Console.WriteLine(xs.Length);
  10.     }
  11. }
Compilation error #stdin compilation error #stdout 0s 0KB
comments (?)
stdin 
Standard input is empty
compilation info 
prog.cs(9,30): error CS1061: Type `System.Collections.Generic.IEnumerable<int>' does not contain a definition for `Length' and no extension method `Length' of type `System.Collections.Generic.IEnumerable<int>' could be found (are you missing a using directive or an assembly reference?)
Compilation failed: 1 error(s), 0 warnings
stdout 
Standard output is empty
https://ideone.com/zVv74
language:
C# (gmcs 5.20.1)
created:
14 years ago
visibility:
public

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