using System;

using System.Linq;

using System.Collections.Generic;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Options available: (r)oll, (d)ecode");

        Console.Write("Do: ");

        char action = Console.ReadLine().ToLower().ToCharArray()[0];

        if(action == 'r') Roll();

        if(action == 'd') Decode();

    }

    public static void Roll()

    {

        Random r = new Random();

        int f = r.Next(0, 32) + 1;

        int[] sums = RollStatDice();

        string encC = "";

        for(int i = 0; i < 6; i++)

        {

            Console.WriteLine(sums[i]);

            encC += i + "d" + (Math.Pow(2, sums[i]) * f);

        }

        Console.WriteLine("Your roll code is: " + f + "x" + encC);

    }

    public static void Decode()

    {

        Console.Write("Enter roll code: ");

        string code = Console.ReadLine();

        //string code = "9x0d5898241d368642d368643d184324d184325d9216";

        int factor = Convert.ToInt32(code.Split(new char[] { 'x' })[0]);

        code = code.Substring((factor + "").Length);

        string[] sRolls = code.Split(new string[] { "x","0d","1d","2d","3d","4d","5d" }, StringSplitOptions.RemoveEmptyEntries);

        int[] rolls = new int[sRolls.Length];

        for(int i = 0; i < rolls.Length; i++)

        {

            rolls[i] = Convert.ToInt32(sRolls[i])/factor;

            for(int a = 1; a < rolls[i]/2; a++)

                if(Math.Pow(2,a) == rolls[i]) rolls[i] = a;

        }

        foreach(int i in rolls) Console.WriteLine(i);

        Console.WriteLine("ran successfully");

    }

    public static void DiceAverages()

    {

        List<int> allRolls = new List<int>();

        int runs = 100;

        for(int x = 0; x < runs; x++)

        {

            int[] sums = RollStatDice();

            for(int i = 0; i < 6; i++)

                allRolls.Add(sums[i]);

        }

        int[] totals = new int[6];

        for(int i = 0; i < runs * 6; i++)

        {

            totals[i % 6] += allRolls[i];

        }

        foreach(int x in totals)

            Console.WriteLine(x/runs);

    }

    public static int[] RollStatDice()

    {

        string[] rolls = new string[6];

        Random r = new Random();

        for(int sequence = 0; sequence < 6; sequence++)

            for(int roll = 0; roll < 4; roll++)

                rolls[sequence] += r.Next(6) + 1;

        // Creates 6 sets of 4 random numbers from 1-6

        int[] sorter = new int[4];

        int[] sums = new int[6];

        for(int x = 0; x < 6; x++)

        {

            for(int i = 0; i < 4; i++)

                sorter[i] = Convert.ToInt32(rolls[x].Substring(i, 1));

            // Stores each number in the string as an integer in a temporary array

            Array.Sort(sorter);

            Array.Reverse(sorter);

            // Sorts the array in descending order

            sorter[3] = 0;

            sums[x] = sorter.Sum();

            // Store sum of dice in an array

        }

        Array.Sort(sums);

        Array.Reverse(sums);

        // Sorts the array in descending order

        return sums;

    }

}