Untitled

using System;
using System.Collections.Generic;
using static System.Console;
using System.Globalization;

class GreenvilleRevenue
{
    public static List<string> Singers = new List<string>();
    public static List<string> Dancers = new List<string>();
    public static List<string> Musicians = new List<string>();
    public static List<string> Others = new List<string>();

    public static int SingingAmount;
    public static int DancingAmount;
    public static int MusicalInstrumentAmount;
    public static int OtherAmount;

    public static int ExpectedRevenue;
    public static int PreviousYearContestants;
    public static int CurrentYearContestants;

    static void Main()
    {
        // Get previous year contestant count
        GetPreviousYearCount();

        // Get current year contestant count
        GetCurrentYearCount();

        // Calculate Expected Revenue
        CalculateExpectedRevenue();

        // Print Expected Revenue
        PrintExpectedRevenue();

        // Print Comment/Contestant population flavor text
        PrintComment();

        // Ask for contestant names and roles
        GatherContestants();

        // Output the types of talent
        PrintTalent();
    }

    static void CalculateExpectedRevenue() => ExpectedRevenue = CurrentYearContestants * 25;

    public static void DisplayRelationship(int numThisYear, int numLastYear)
    {
        // Write your DisplayRelationship() here.
    }

    static void GatherContestants()
    {
        for (int i = 0; i < CurrentYearContestants; i++)
        {
            // Ask for contestant name
            var name = ReadLine();

            // Ask for role
            var role = GetRole(name);

            if (role == "Z")
                break;
        }

    sentinel:
        var sentinel = ReadLine();
        if (sentinel != "S" && sentinel != "D" && sentinel != "M" && sentinel != "O")
        {
            if (sentinel != "Z")
                WriteLine($"{sentinel} is not a valid code.");
        }
        if (sentinel != "Z")
            goto sentinel;

    }

    /// <summary>
    /// This method gets and returns a valid number of contestants and is called twice once for last year’s number of contestants and once for this year’s value
    /// </summary>
    /// <param name="when"></param>
    /// <param name="min"></param>
    /// <param name="max"></param>
    /// <returns></returns>
    public static int GetContestantNumber(string when, int min, int max)
    {
        getprevious:
        // Get number
        PreviousYearContestants = int.Parse(ReadLine());

        // Validate number
        if (PreviousYearContestants < 0 || PreviousYearContestants > 30)
        {
            WriteLine("Enter a valid number");
            goto getprevious;
        }

        getcurrent:
        // Get number
        CurrentYearContestants = int.Parse(ReadLine());

        // Validate number
        if (CurrentYearContestants < 0 || CurrentYearContestants > 30)
        {
            WriteLine("Enter a valid number");
            goto getcurrent;
        }

        return 0;
    }



    public static void GetContestantData(int numThisYear, string[] names, char[] talents, char[] talentCodes, string[] talentCodesStrings, int[] counts)
    {
        // Write your GetContestantData() here.
    }

    public static void GetLists(int numThisYear, char[] talentCodes, string[] talentCodesStrings, string[] names, char[] talents, int[] counts)
    {
        // Write your GetLists() here.
    }

    static string GetRole(string name)
    {
        var role = ReadLine();

        if (role != "S" && role != "D" && role != "M" && role != "O")
        {
            WriteLine($"{role} is not a valid code.");
            GetRole(name);
        }

        switch (role)
        {
            case "S":
                SingingAmount++;
                Singers.Add(name);
                break;
            case "D":
                DancingAmount++;
                Dancers.Add(name);
                break;
            case "M":
                MusicalInstrumentAmount++;
                Musicians.Add(name);
                break;
            case "O":
                OtherAmount++;
                Others.Add(name);
                break;
        }

        return role;
    }

    static void PrintExpectedRevenue() => WriteLine("Expected revenue: {0}", ExpectedRevenue.ToString("C", CultureInfo.GetCultureInfo("en-US")));

    static void PrintComment()
    {
        if (CurrentYearContestants > PreviousYearContestants * 2)
        {
            WriteLine("This competition is more than twice as big this year!");
        }
        else if (CurrentYearContestants > PreviousYearContestants)
        {
            WriteLine("The competition is bigger than ever!");
        }
        else if (CurrentYearContestants < PreviousYearContestants)
        {
            WriteLine("A tighter race this year! Come out and cast your vote!");
        }
    }

    static void PrintTalent()
    {
        WriteLine("The types of talent are:");
        WriteLine($"Singing {SingingAmount}");
        WriteLine($"Dancing {DancingAmount}");
        WriteLine($"Musical Instrument {MusicalInstrumentAmount}");
        WriteLine($"Other {OtherAmount}");

        //

        WriteLine("Contestants with talent Musical Instrument are:");
        foreach (var musician in Musicians)
        {
            WriteLine(musician.ToString());
        }

        WriteLine("Contestants with talent Dancing are:");
        foreach (var dancer in Dancers)
        {
            WriteLine(dancer.ToString());
        }

        WriteLine("Contestants with talent Singing are:");
        foreach (var singer in Singers)
        {
            WriteLine(singer.ToString());
        }

        WriteLine("Contestants with talent Other are:");
        foreach (var other in Others)
        {
            WriteLine(other.ToString());
        }
    }
}