// Project Started February 20, 2024

​

using System;

​

namespace Main{

    using formulas;

public class Program

{

    public static void Main()

    {

    }

}

}

namespace formulas{

    using System.Collections.Generic;

    public delegate void OO();

    enum options {a = 0,

                  b = 1, 

                  c = 2,

                  d = 3

                 };

public class Menu

{

    // variables

    /////////////////////////////////////////////////////////////////////////////////////////////////////

    private List<string> optionDescription = new List<string> {"",

                                                               "",

                                                               "",

                                                               ""};

    /////////////////////////////////////////////////////////////////////////////////////////////////////

    // Singleton

    private static Menu instance;

    public static Menu Instance {

        get {

            if(instance==null)

            {instance=new Menu();}

            return instance;

        }

    }private Menu(){} //private constructor

}

​

​

​

public static class MT // Menu Tools

{

    public static void PrintMainMenu(formul a, List<string> description, out int selectedOption)

    {

        a = options.;

        selectedOption = 1;

    }

}

}