TeamProjects

using System;
using System.Collections.Generic;
using System.Linq;

namespace _09.TeamworkProjects
{
    public class TeamworkProjects
    {
        public static void Main()
        {
            int numberOfTriesToRegisterTeam = int.Parse(Console.ReadLine());

            Dictionary<string, Team> creatorAndTeam = new Dictionary<string, Team>();

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

                string creator = info[0];
                string teamName = info[1];

                if (!creatorAndTeam.ContainsKey(creator))
                {
                    Team currTeam = new Team();
                    currTeam.teamName = teamName;

                    if (!creatorAndTeam.Values.Any(x => x.teamName.Equals(currTeam.teamName)))
                    {
                        creatorAndTeam.Add(creator, currTeam);
                        Console.WriteLine("Team {1} has been created by {0}!", creator, currTeam.teamName);
                    }
                    else
                    {
                        Console.WriteLine("Team {0} was already created!", currTeam.teamName);
                    }
                }
                else
                {
                    Console.WriteLine("{0} cannot create another team!", creator);
                }
            }

            string commandLine = Console.ReadLine();

            while (!commandLine.Equals("end of assignment"))
            {
                string[] operationsOFMembers = commandLine
                    .Split(new char[] { '-', '>' }, StringSplitOptions.RemoveEmptyEntries)
                    .ToArray();

                string userTryingToJoin = operationsOFMembers[0];
                string nameOfTeamToJoin = operationsOFMembers[1];

                if (creatorAndTeam.Values.Any(x => x.teamName.Equals(nameOfTeamToJoin)))
                {
                    if (!creatorAndTeam.Values.Any(x => x.members.Any(member => member.Equals(userTryingToJoin))) && !creatorAndTeam.Keys.Any(x => x.Equals(userTryingToJoin)))
                    {
                        KeyValuePair<string, Team> creatorOfTheTeam = creatorAndTeam.First(x => x.Value.teamName.Equals(nameOfTeamToJoin));
                        creatorAndTeam[creatorOfTheTeam.Key].members.Add(userTryingToJoin);
                    }
                    else
                    {
                        Console.WriteLine("Member {0} cannot join team {1}!", userTryingToJoin, nameOfTeamToJoin);
                    }
                }
                else
                {
                    Console.WriteLine("Team {0} does not exist!", nameOfTeamToJoin);
                }

                commandLine = Console.ReadLine();
            }

            foreach (var team in creatorAndTeam.Where(x => x.Value.members.Count > 0).OrderByDescending(x => x.Value.members.Count).ThenBy(x => x.Value.teamName))
            {
                Console.WriteLine("{0}", team.Value.teamName);
                Console.WriteLine("- {0}", team.Key);

                foreach (var member in team.Value.members.OrderBy(x => x))
                {
                    Console.WriteLine("-- {0}", member);
                }
            }

            Console.WriteLine("Teams to disband:");
            foreach (var emptyTeam in creatorAndTeam.Where(x => x.Value.members.Count == 0).OrderBy(x => x.Value.teamName))
            {
                Console.WriteLine("{0}", emptyTeam.Value.teamName);
            }
        }

        public class Team
        {
            public string teamName { get; set; }
            public List<string> members = new List<string>();
        }
    }
}