gistfile1.txt

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApplication2
{
    class Program
    {
        static void Main(string[] args)
        {

            var ints = new int[] { 1, 2, 3 };
            var strings = new string[] { "alice", "bob", "charlie" };
            MyList.methods<int>()[0](ints);

            MyList.methods<string>()[0](strings);

        }

        public class MyList
        {

            //[tail,init,reverse,tail] :: [ [a]->[a] ]
            public static Func<T[], T[]>[] methods<T>()
            {
                Func<T[], T[]> tail = items => items.Skip(1).ToArray();
                Func<T[], T[]> init = items => items.Take(1).ToArray();
                Func<T[], T[]> reverse = items => items.Reverse().ToArray();

                return new Func<T[], T[]>[] { tail, init, reverse, tail };
            }


            
        }


    }
}