using System;

using System.Collections.Generic;

public class Program

{

​

    public static void Main()

    {

        Dice dice = new Dice();

        Console.WriteLine("The highest score is: " + dice.GetHighestScore());

    }

}

​

​

public class Dice

{

    public int Ones { get; set; }

    public int Twos { get; set; }

    public int Threes { get; set; }

    public int Fours { get; set; }

    public int Fives { get; set; }

    public int Sixes { get; set; }

    public int Sevens { get; set; }

    public int Eights { get; set; }

    public int ThreeOfAKind { get; set; }

    public int FourOfAKind { get; set; }

    public int AllOfAKind { get; set; }

    public int NoneOfAKind { get; set; }

    public int FullHouse { get; set; }

    public int SmallStraight { get; set; }

    public int LargeStraight { get; set; }

    public int Chance

    {

        get { return Ones + Twos + Threes + Fours + Fives + Sixes + Sevens + Eights; }

    }

    /// <summary>

    /// Generates a random number between 1 and 8 inclusive five times and returns the generated numbers.

    /// </summary>

    /// <returns>integer array</returns>

    private int[] RoleDice()

    {

        int[] result = new int[5];

        Random rand = new Random();

        for (int i = 0; i < 5; i++)

        {

            int randNum = rand.Next(1, 9);

            result[i] = randNum;

        }

        return result;

    }

    /// <summary>

    /// Gets the score of the rolled dice and assigns value to the appropriate property.

    /// </summary>

    private void GetScore(int[] arr)

    {

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

        {

            int num = arr[i];

            if (num == 1)

                Ones += num;

            else if (num == 2)

                Twos += num;

                else if (num == 3)

                Threes += num;

                else if (num == 4)

                Fours += num;

                else if (num == 5)

                Fives += num;

                else if (num == 6)

                Sixes += num;

                else if (num == 7)

                Twos += num;

                else if (num == 2)

                Sevens += num;

                else

                Eights += num;

                }

    }

    /// <summary>

    /// Takes array of integers and creates a dictionary, the key being the element and the value being the number of times the element occured in the array.

    /// </summary>

    /// <param name="arr">integer array</param>

    /// <returns>Dictionary of integer key and integer value.</returns>

    private Dictionary<int,int> GetOccurances(int [] arr)

    {

        Array.Sort(arr);

        Dictionary<int, int> occurances = new Dictionary<int, int>();

        int counter = 1;

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

        {

            int key = arr[i];

            if (i != arr.Length-1)

            {

                if (arr[i] == arr[i+1])

                {

                    counter++;

                }

                else

                {

                    occurances.Add(key, counter);

                    counter = 1;

                }

            }

            else

            {

                occurances.Add(key, counter);

            }

        }

        return occurances;

    }

    /// <summary>

    /// Calculates how many elements appeared in sequence.

    /// </summary>

    /// <param name="arr"></param>

    /// <returns>integer</returns>

    private int GetNumberOfDiceInSequence(int [] arr)

    {

        Array.Sort(arr);

        int counter = 1;

        for (int i = 0; i < arr.Length-1; i++)

        {

            int current = arr[i];

            int next = arr[i + 1];

            int diff = next - current;

            if (diff == 1)

            {

                counter++;

            }

        }

        return counter;

    }

    /// <summary>

    /// Analyzes the roled dice score according to the requirement

    /// </summary>

    /// <param name="arr"></param>

    /// <returns>integer</returns>

    private void AnalyzeScore(int [] arr)

    {

        var occurances = GetOccurances(arr);

        if (occurances.ContainsValue(5))

            AllOfAKind = 50;

        if (occurances.ContainsValue(4))

            FourOfAKind = Chance;

        if (occurances.ContainsValue(3))

            ThreeOfAKind = Chance;

        if (occurances.ContainsValue(3) && occurances.ContainsValue(2))

            FullHouse = 25;

        if (GetNumberOfDiceInSequence(arr) == 4)

            SmallStraight = 30;

        if (GetNumberOfDiceInSequence(arr) == 5)

            LargeStraight = 40;

    }

    /// <summary>

    /// Gets the highest score as per the requirement

    /// </summary>

    /// <returns>integer</returns>

    public int GetHighestScore()

    {

        int[] arr = RoleDice();

        GetScore(arr);

        AnalyzeScore(arr);

        int[] allValues = new int[15] {Ones, Twos, Threes, Fours, Fives, Sixes, Sevens, Eights, ThreeOfAKind, FourOfAKind, AllOfAKind, NoneOfAKind, SmallStraight, LargeStraight, Chance };

        Array.Sort(allValues);

        return allValues[14];

    }

}

​