DynamicArray

gistfile1.txt

using System;
using System.Threading;

namespace dynamicArray
{
    internal class Program
    {
        static void Main(string[] args)
        {
            const string CommandSum = "sum";
            const string CommandExit = "exit";

            int[] defaultStorage = new int[1];
            int[] temporaryStorageForSave = defaultStorage;

            bool isWork = true;

            string userInput;

            while (isWork)
            {
                Console.WriteLine("Введите комманду:");
                userInput = Console.ReadLine().ToLower();

                switch (userInput)
                {
                    case CommandSum:
                        Console.Clear();

                        int totalizer = 0;

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

                        defaultStorage = new int[1];
                        temporaryStorageForSave = defaultStorage;

                        Console.WriteLine("Сумма записанных чисел: " + totalizer);
                        Thread.Sleep(3000);
                        Console.Clear();
                        break;

                    case CommandExit:
                        isWork = false;
                        break;

                    default:
                        defaultStorage = temporaryStorageForSave;

                        defaultStorage[defaultStorage.Length-1] = Convert.ToInt32(userInput);
                        Console.Clear();

                        temporaryStorageForSave = new int[defaultStorage.Length + 1];

                        Console.Write("Записанные числа: ");
                        for (int i = 0; i < defaultStorage.Length; i++)
                        {
                            temporaryStorageForSave[i] = defaultStorage[i];
                            Console.Write(temporaryStorageForSave[i] + " ");
                        }

                        Thread.Sleep(1000);
                        Console.Clear();
                        break;
                }
            }
        }
    }
}