using System;

using System.Collections;

​

public class Program

{

    public static void Main(string [] args)

    {

        // zadanie 3

        Console.WriteLine("----------------------------ZADANIE 3----------------------------------");

        Queue queue = new Queue();

        for (int i = 0; i <= 4; i++) {

            queue.Enqueue(i);

        }

        foreach (var ele in queue) {

            Console.WriteLine(ele); 

        }

        Console.WriteLine("----------------");

        Console.WriteLine(queue.Peek());

        Console.WriteLine("----------------");

        Console.WriteLine(queue.Dequeue());

        Console.WriteLine("----------------");

        foreach (var ele in queue) {

            Console.WriteLine(ele); 

        }

        // zadanie 4

        Console.WriteLine("----------------------------ZADANIE 4----------------------------------");

        ArrayList list = new ArrayList();

​

        int[] arr = { 10, 20, 30, 40 };

        list.AddRange(arr);

        list.Add(50);

        foreach (var ele in list) {

            Console.WriteLine(ele); 

        }

        Console.WriteLine("----------------");

        list.Insert(2, 25);

        foreach (var ele in list) {

            Console.WriteLine(ele); 

        }

        Console.WriteLine("----------------");

        list.Remove(40);

        foreach (var ele in list) {

            Console.WriteLine(ele); 

        }

        Console.WriteLine("----------------");

    }

}

​

​