using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

public class Program

{

    public static void Main()

    {

        MujList listek = new MujList();

        for(int i = 0; i < 100; i++)

        listek.Pridej(i + 1);

        listek[0] = "první";

        listek[3] = "čtvrtý";

        for(int i = 0; i < 100; i++)

        {

            Console.WriteLine(listek[i]);

        }

        Console.WriteLine(listek.Pocet);        

​

    }

}

​

public class MujList

{

    public int Pocet{get; private set;}

    private Object[] pole = new Object[10];

    public Object this[int i]

    {

        get{return pole[i];}

        set{pole[i] = value;}

    }

    public MujList()

    {

        Pocet = 0;

    }

    public void Pridej(Object toto)

    {

        if(Pocet == pole.Length)

        {

        Object[] pomocne = new Object[Pocet * 2];

        pole.CopyTo(pomocne, 0);

        pole = pomocne; 

        }

        pole[Pocet] = toto;

        Pocet++;

    }

}