using System;


namespace WorkingWithArray
{
    class Program
    {
        private static readonly string
            InitialArray = "Начальный массив: ",
            AfterAdding = "добавления: ",
            AfterDeliting = "удаления: ",
            SecondlArray = "Второй массив: ",
            ElementToRemove = "Элемент для удаления = ",
            Empty = "Empty!",
            Separator = ", ";

        static void Main(string[] args)
        {
            int[] array = new int[0];
            int[] secondArray = new int[0];

            PrintArray(InitialArray, ref array);

            for (int i = 0; i < 10; i++)
            {
                AddElement(i, ref array);
            }

            PrintArray(AfterAdding, ref array);

            int removedElement = array[2];
            RemoveElement(2, ref array);
            Console.WriteLine(ElementToRemove + removedElement);
            PrintArray(AfterDeliting, ref array);
            CopyArray(ref array, ref secondArray);
            PrintArray(InitialArray, ref array);
            PrintArray(SecondlArray, ref array);
            Console.ReadKey();
        }

        private static void AddElement(int element, ref int[] array)
        {
            int[] tempArray = new int[array.Length + 1];

            for (int i = 0; i < array.Length; i++)
            {
                tempArray[i] = array[i];
            }

            tempArray[array.Length] = element;
            array = tempArray;
        }

        private static void RemoveElement(int index, ref int[] array)
        {
            int[] tempArray = new int[array.Length - 1];
            int arrayIterator = 0;

            for (int i = 0; i < tempArray.Length; i++)
            {
                if (index == i)
                {
                    arrayIterator++;
                }

                tempArray[i] = array[arrayIterator];
                arrayIterator++;
            }

            array = tempArray;
        }

        private static void CopyArray(ref int[] source, ref int[] destination)
        {
            destination = source;
        }

        private static void PrintArray(string message, ref int[] array)
        {
            if (array.Length == 0)
            {
                Console.WriteLine(message + Empty);
                return;
            }

            Console.WriteLine(message + string.Join(Separator, array));
        }
    }
}