//Rextester.Program.Main is the entry point for your code. Don't change it.

//Compiler version 4.0.30319.17929 for Microsoft (R) .NET Framework 4.5

​

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text.RegularExpressions;

​

namespace Rextester

{

    public class Program

    {

        public static void Main(string[] args)

        {

            int n = 3;

            Random rnd = new Random();

            int randomUser = -1;

​

            List<string> users = new List<string>();

            List<string> gifts = new List<string>();

            gifts.Add("notebook");

            gifts.Add("phone");

            gifts.Add("pen");

​

​

            List<string> giftSelected = new List<string>(gifts.Count);

​

            gifts.ForEach((item) =>

            {

                giftSelected.Add(item);

            });

            Console.WriteLine("Foydalanuvchilarni kiriting!");

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

            {

                Console.WriteLine(i + 1 + "-foydalanuvchini kiriting");

                string user = Console.ReadLine();

                users.Add(user);

            }

​

            for (int j = n - 1; j > 0; j--)

            {

​

                randomUser = rnd.Next(0, n - j);

​

​

                Console.WriteLine("Ixtiyoriy tanlangan foydalanuvchi: " + users[randomUser]);

​

                if (giftSelected.Where(w => w != null).ToList().Count > 1)

                {

                    Console.WriteLine("Tanlash mumkin bo'lgan raqamlar: ");

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

                    {

                        if (giftSelected[i] != null)

                            Console.WriteLine(" " + i);

                    }

                    int selected = -1;

                    string selectedStr = Console.ReadLine();

                    int.TryParse(selectedStr, out selected);

                    if (giftSelected[selected] != null && selected != -1)

                    {

                        Console.WriteLine("Hurmatli {0}, tabriklaymiz, Siz {1}ni yutdingiz!", users[randomUser], giftSelected[selected]);

                        giftSelected[selected] = null;

                    }

                    else

                        Console.WriteLine("Iltimos, boshqa raqamni tanlang!");

                }

​

​

                users.RemoveRange(randomUser, 1);

            }

​

            Console.WriteLine("Hurmatli {0}, tabriklaymiz, Siz {1}ni yutdingiz!", users[0], giftSelected.Where(w => w != null).ToList().FirstOrDefault());

        }

    }

}