using System;

using System.Text.RegularExpressions;

using System.Linq;

​

public class Program

{

    public static void Main()

    {

        var array = Enumerable.Range(0, 100).Select((y) => -1).ToArray();

        Console.WriteLine("Array com tamanho:" + array.Length);

        for (int i = 0; i < array.Count(); i++) 

        {

            Console.WriteLine(string.Format("Linha no index {0} = {1}", i, array[i]));

        }

    }

}