theVlogger

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

namespace P07TheVlogger
{
    class Program
    {
        static void Main(string[] args)
        {
            var usernames = new HashSet<string>();
            var howManyFollowersUsersHave = new Dictionary<string, HashSet<string>>();
            var following = new Dictionary<string, HashSet<string>>();

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

                if (input == "Statistics")
                {
                    break;
                }
                else
                {
                    string[] commandsInfo = input
                            .Split(" ", StringSplitOptions.RemoveEmptyEntries);

                    string name = commandsInfo[0];

                    if (commandsInfo.Length == 4)
                    {
                        string command = commandsInfo[1];
                        string vloggerClub = commandsInfo[3];

                        usernames.Add(name);

                        if (usernames.Contains(name))
                        {
                            if (howManyFollowersUsersHave.ContainsKey(name) == false)
                            {
                                howManyFollowersUsersHave.Add(name, new HashSet<string>());
                            }

                            if (following.ContainsKey(name) == false)
                            {
                                following.Add(name, new HashSet<string>());
                            }
                        }
                    }
                    else if (commandsInfo.Length == 3)
                    {
                        string command = commandsInfo[1];
                        string vlogger = commandsInfo[2];

                        if (usernames.Contains(name)
                            && usernames.Contains(vlogger)
                            && name != vlogger)
                        {
                            if (howManyFollowersUsersHave.ContainsKey(vlogger) == false)
                            {
                                howManyFollowersUsersHave.Add(vlogger, new HashSet<string>());
                            }

                            howManyFollowersUsersHave[vlogger].Add(name);

                            if (following.ContainsKey(name) == false)
                            {
                                following.Add(name, new HashSet<string>());
                            }

                            following[name].Add(vlogger);
                        }
                    }
                }
            }

            int count = 2;

            Console.WriteLine($"The V-Logger has a total of {usernames.Count} vloggers in its logs.");

            var topUser = howManyFollowersUsersHave
                .OrderByDescending(x => x.Value.Count)
                .ThenBy(g => following[g.Key].Count)
                .FirstOrDefault();

            Console.WriteLine($"1. {topUser.Key} : {topUser.Value.Count} followers, {following[topUser.Key].Count} following");

            foreach (var followers in topUser.Value.OrderBy(x=>x))
            {
                Console.WriteLine($"*  {followers}");
            }

            foreach (var user in howManyFollowersUsersHave
                .Where(y=>y.Key != topUser.Key)
                .OrderByDescending(x => x.Value.Count)
                .ThenBy(y => following[y.Key].Count))
            {
                foreach (var item in following)
                {
                    if (user.Key == item.Key)
                    {
                        Console.WriteLine($"{count}. {user.Key} : {user.Value.Count} followers, {item.Value.Count} following");
                        count++;
                    }
                }
            }
        }
    }
}