using System;

using System.Collections;

using System.Collections.Generic;

public class Program

{

    // TODO implement me! a simple leaderboard.  Can register player scores and then 

    // either get back an IList of the top entries, or a given player's scores...

    public class Leaderboard {

        //TODO private variables to do the stuff!

        //TODO implement these!

        public void RegisterScoreForPlayer(string playerName, int score){

            throw new System.NotImplementedException(); 

        }

​

        public IList<LeaderboardEntry> GetTopTen(){

            // HINT HINT - this returns an IList - and it is readonly, a real bonus!

            // return myList.AsReadOnly();

​

            throw new System.NotImplementedException();     

        }

        public IList<int> GetPlayerScores(string playerName){

            // HINT HINT - this returns an IList - and it is readonly, a real bonus!

             //return myList.AsReadOnly();

            throw new System.NotImplementedException();     

        }

    }

    // A data structure class that pairs a playerName with a score

    // for presenting the actual leaderboard!

    public class LeaderboardEntry : object {

        public string playerName;

        public int score;

        public override string ToString(){

            return playerName + " : " + score;

        }

    }

    public static void Main()

    {

        Leaderboard myBoard = new Leaderboard();

        // Test Suite

        myBoard.RegisterScoreForPlayer("steve", 10);

        myBoard.RegisterScoreForPlayer("steve", 25);            

        myBoard.RegisterScoreForPlayer("steve", 80);        

        myBoard.RegisterScoreForPlayer("steve", 100);       

        myBoard.RegisterScoreForPlayer("steve", 80);

        myBoard.RegisterScoreForPlayer("bob", 75);

        myBoard.RegisterScoreForPlayer("bob", 90);          

        myBoard.RegisterScoreForPlayer("bob", 5);       

        myBoard.RegisterScoreForPlayer("bob", 210); 

        myBoard.RegisterScoreForPlayer("bob", 75);

        myBoard.RegisterScoreForPlayer("bob", 90);          

        myBoard.RegisterScoreForPlayer("bob", 5);       

        myBoard.RegisterScoreForPlayer("bob", 210); 

        myBoard.RegisterScoreForPlayer("eliot", 99);

        myBoard.RegisterScoreForPlayer("eliot", 63);            

        myBoard.RegisterScoreForPlayer("eliot", 8);     

        myBoard.RegisterScoreForPlayer("eliot", 22);    

        myBoard.RegisterScoreForPlayer("lisa", 130);

        myBoard.RegisterScoreForPlayer("lisa", 102);            

        myBoard.RegisterScoreForPlayer("lisa", 62);     

        myBoard.RegisterScoreForPlayer("lisa", 38); 

        // ok, now let's print out the results;

        PrintIList("Top Ten", myBoard.GetTopTen());

        Console.WriteLine("PlayerScores");

        PrintIList("steve", myBoard.GetPlayerScores("steve"));

        PrintIList("bob", myBoard.GetPlayerScores("bob"));      

        PrintIList("lisa", myBoard.GetPlayerScores("lisa"));        

        PrintIList("eliot", myBoard.GetPlayerScores("eliot"));

    }

        // helper to print the resulting lists!

    static void PrintIList<T>(string header, IList<T> theList){

        Console.WriteLine(header + ":");

        foreach(var l in theList){

            Console.WriteLine(l.ToString());

        }

    }

}