find duplicate number from intiger array number in LINQ? | C# Online Compiler

find duplicate number from intiger array number in LINQ? by srbsahoo2@gmail.com

using System;
					
public class Program
{
	public static void Main()
	{
		Console.WriteLine("Hello World");
	}
}

 
using System;
                    
public class Program
{
    public static void Main()
    {
        Console.WriteLine("Hello World");
    }
}

Compilation error (line 8, col 12): ; expected