using System;

public class Program

{

    public static void Main()

    {

        var maxGamesToRun = 10000;

        var gameCount = 0;

        var switchWinCount = 0;

        var nonSwitchWinCount = 0;

​

        var randomGenerator = new Random();

        while (gameCount < maxGamesToRun)

        {

            bool[] doors = {false,false,false};

​

            var carLocation = randomGenerator.Next(0, 3);

            doors[carLocation] = true;

​

            var playerChoice = randomGenerator.Next(0, 3);  

            var hostChoice = GetHostChoice(playerChoice,doors);

            var switchPlayerChoice = Switch(playerChoice, hostChoice);

            if (doors[switchPlayerChoice]) switchWinCount++;

            if (doors[playerChoice]) nonSwitchWinCount++;

            gameCount++;

        }

        Console.WriteLine("Switch Win Average");

        Console.WriteLine(switchWinCount/100);

        Console.WriteLine("No Switch Win Average");

        Console.WriteLine(nonSwitchWinCount/100);

    }

    public static int GetHostChoice(int playerChoice, bool[] doors)

    {

        int hostChoice = 0;

        var randomGenerator = new Random();

        while (hostChoice == playerChoice || doors[hostChoice] == true)

        {

            hostChoice = randomGenerator.Next(0, 3);

        }

        return hostChoice;  

    }

    public static int Switch(int playerChoice, int hostChoice)

    {

        if (playerChoice !=0 && hostChoice != 0) return 0;

        if (playerChoice !=1 && hostChoice != 1) return 1;

        return 2;

    }

}