Teamwork Projects

using System;
using System.Collections.Generic;
using System.Linq;
//using System.Text;

public class Team
{
    public Team(string name, string creatorName)
    {
        TeamName = name;

        CreatorName = creatorName;

        Members = new List<string>();

    }

    public string TeamName { get; set; }

    public string CreatorName { get; set; }

    public List<string> Members { get; set; }
}

public class Program
{
    public static void Main()
    {
        int teamCount = int.Parse(Console.ReadLine());

        List<Team> allTeam = new List<Team>();

        for (int i = 0; i < teamCount; i++)
        {
            string[] inputForTeam = Console.ReadLine()
                .Split(new[] { '-' }, StringSplitOptions.RemoveEmptyEntries);

            string currentCreator = inputForTeam[0];
            string currentTeamNeme = inputForTeam[1];

            // проверка дали тиймът вече не съществува.
            // Съобщение, ако вече съществува
            bool isTeamNameExist = allTeam
                .Select(x => x.TeamName).Contains(currentTeamNeme);

            bool isCreatorExist = allTeam
                .Any(x => x.CreatorName == currentCreator);

            // проверка дали Инициаторът на Тийма вече не е създал тийм.
            // Съобщение, ако вече е създал

            // if-ови конструкции
            if (isTeamNameExist == false && isCreatorExist == false)
            {
                Team currentTeam = new Team(currentTeamNeme, currentCreator);

                allTeam.Add(currentTeam);

                Console.WriteLine("Team {0} has been created by {1}!", currentTeamNeme, currentCreator);
            }
            else if (isTeamNameExist)
            {
                Console.WriteLine("Team {0} was already created!", currentTeamNeme);
            }
            else if (isCreatorExist)
            {
                Console.WriteLine("{0} cannot create another team!", currentCreator);
            }
        } // end for-circle

        while (true)
        {
            string fensForTeam = Console.ReadLine();

            if (fensForTeam == "end of assignment")
            {
                break;
            }

            string[] inputAssignment = fensForTeam
                .Split(new[] { '-', '>' }, StringSplitOptions.RemoveEmptyEntries);

            string fen = inputAssignment[0];

            string ofFensTeam = inputAssignment[1];

            // Първа проверка за това, че Тиймът съществува.
            // Единствената положителна проверка в алгоритъма на задачата.
            bool isTeamExist = allTeam.Any(x => x.TeamName == ofFensTeam);

            // Втора проверка за това дали записващия се не инициатор
            // Продължение на втората проверка -дали записващия се
            // не се е записал вече в друг тийм.
            bool isCreatorCheating = allTeam.Any(x => x.CreatorName == fen);
            bool isAlreadyFen = allTeam.Any(x => x.Members.Contains(fen));

            if (isTeamExist && isCreatorCheating == false && isAlreadyFen == false)
            {
                int indexOfTeam = allTeam
                    .FindIndex(x => x.TeamName == ofFensTeam);

                allTeam[indexOfTeam].Members.Add(fen);
            }
            else if (isTeamExist == false)
            {
                Console.WriteLine("Team {0} does not exist!", ofFensTeam);
            }
            else if (isAlreadyFen || isCreatorCheating)
            {
                Console.WriteLine("Member {0} cannot join team {1}!", fen, ofFensTeam);
            }
        } // END WHILE CIRCLE

        // Изписване на резултатите
        // тиймовете с поне един член    се подреждат по азбучен ред
        // и се изписват по дадения в задачата ред.

        List<Team> teamWithMember = allTeam
            .Where(x => x.Members.Count > 0)
            .OrderByDescending(x => x.Members.Count)
            .ThenBy(x => x.TeamName)
            .ToList();

        List<Team> notValidTeam = allTeam
            .Where(x => x.Members.Count == 0)
            .OrderBy(x => x.TeamName)
            .ToList();

        foreach (var team in teamWithMember)
        {
            Console.WriteLine(team.TeamName);
            Console.WriteLine("- " + team.CreatorName);
            team.Members.Sort();
            Console.WriteLine(string.Join(Environment.NewLine, team.Members.Select(x => "-- " + x)));
        }

        Console.WriteLine("Teams to disband:");

        foreach (var team in notValidTeam)
        {
            Console.WriteLine(team.TeamName);
        }
    }
}