using System;

using System.Collections.Generic;

using System.Linq;

​

public class Program

{

    public static void Main()

    {

        var teamCount = 8;

        var round = 1;

        var teams = CreateTeams(teamCount);

        while(teams.Count > 1){

            var matchups = CreateMatchups(teams);

            PrintBracket(matchups, round++);

            teams = PlayRound(matchups);

        }

        Console.WriteLine("\n" + teams.Single().Name + " is the winner!");

    }

​

    //creates dummy teams: "Team1" Seed 1, "Team2" Seed 2, etc...

    private static List<Team> CreateTeams(int totalTeams){

        return Enumerable.Range(1, totalTeams).Select(x => new Team("Team " + x, x)).ToList();

    }

    private static List<Matchup> CreateMatchups(List<Team> teams)

    {

        var matchups = new List<Matchup>();

        for (int i = 0; i < teams.Count / 2; i++)

        {

            matchups.Add(new Matchup(teams[i], teams[teams.Count -(i+1)]));

        }

        return matchups;

    }

​

    private static void PrintBracket(List<Matchup> Matchups, int round)

    {

        //Console.WriteLine("Round " + round + ":\n" + string.Join("\n", Matchups.OrderBy(x=> x.GetFavored().Seed)));

        //or more understandly... ;)

        Console.WriteLine("Round " + round + ":\n");

        foreach(var matchup in Matchups.OrderBy(x=> x.GetFavored().Seed)){

            Console.WriteLine(matchup);

        }

    }

    private static List<Team> PlayRound(List<Matchup> matchups){

        return matchups.Select(x=> x.GetFavored()).ToList();

    }

}

​

public class Team

{

    public Team(string name, int seed){

        Name = name;

        Seed = seed;

    }

    public string Name {get; set;}

​

    public int Seed {get; set;}

    public static Team GetBetterSeed(Team t1, Team t2){

        return t1.Seed < t2.Seed ? t1 : t2;

    }

}

​

public class Matchup

{

    public Matchup(Team t1, Team t2){

        Team1 = t1;

        Team2 = t2;

    }

    public Team Team1 {get; set;}

    public Team Team2 {get; set;}

    public override string ToString(){

        return Team1.Name + " vs. " + Team2.Name;

    }

    public Team GetFavored(){

        return Team.GetBetterSeed(Team1, Team2);

    }

}