MOBAChallenger-MyProblemDecision

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

namespace _04MOBAChallenger
{
    class Program
    {
        static void Main(string[] args)
        {
            Dictionary<string, Dictionary<string, int>> playerSkillPos = new Dictionary<string, Dictionary<string, int>>();

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

                if (input == "Season end")
                {
                    break;
                }

                if (!input.Contains("vs"))
                {
                    string[] tokens = input.Split(" -> ");

                    string name = tokens[0];
                    string position = tokens[1];
                    int skill = int.Parse(tokens[2]);

                    if (!playerSkillPos.ContainsKey(name))
                    {
                        playerSkillPos.Add(name, new Dictionary<string, int>());
                        playerSkillPos[name].Add(position, skill);
                    }
                    else if (playerSkillPos.ContainsKey(name)==true && playerSkillPos[name].ContainsKey(position)==false)
                    {
                        playerSkillPos[name].Add(position, skill);
                    }
                    else if (playerSkillPos.ContainsKey(name) == true && playerSkillPos[name].ContainsKey(position) == true)
                    {
                        if (skill>playerSkillPos[name][position])
                        {
                            playerSkillPos[name][position] = skill;
                        }
                    }
                }
                else
                {
                    string[] tokens = input.Split(" vs ");

                    string player1Name = tokens[0];
                    string player2Name = tokens[1];

                    if (playerSkillPos.ContainsKey(player1Name) && playerSkillPos.ContainsKey(player2Name))
                    {
                        List<string> player1Positions = new List<string>();

                        foreach (var kvp in playerSkillPos)
                        {
                            string playerName = kvp.Key;
                            var positions = kvp.Value.Keys;

                            if (playerName == player1Name)
                            {
                                player1Positions.AddRange(positions);
                            }
                        }

                        int player1TotalPoints = playerSkillPos[player1Name].Values.Sum();
                        int player2TotalPoints = playerSkillPos[player2Name].Values.Sum();

                        List<string> player2Positions = new List<string>();

                        foreach (var kvp in playerSkillPos)
                        {
                            string playerName = kvp.Key;
                            var positions = kvp.Value.Keys;

                            if (playerName == player2Name)
                            {
                                player2Positions.AddRange(positions);
                            }
                        }

                        foreach (var item in player1Positions)
                        {
                            if (player2Positions.Any(x=>x == $"{item}"))
                            {
                                if (player1TotalPoints>player2TotalPoints)
                                {
                                    playerSkillPos.Remove(player2Name);
                                }
                                else if (player1TotalPoints < player2TotalPoints)
                                {
                                    playerSkillPos.Remove(player1Name);
                                }
                            }
                        }
                    }
                }
            }

            foreach (var kvp in playerSkillPos.OrderByDescending(x=>x.Value.Values.Sum()).ThenBy(x=>x.Key))
            {
                Console.WriteLine($"{kvp.Key}: {kvp.Value.Values.Sum()} skill");

                foreach (var kvpValue in kvp.Value.OrderByDescending(x=>x.Value).ThenBy(x=>x.Key))
                {
                    Console.WriteLine($"- {kvpValue.Key} <::> {kvpValue.Value}");
                }
            }
        }
    }
}