[StartCode]
using System;
using System.Collections.Generic;
using System.Diagnostics.Eventing.Reader;
using System.Linq;
using System.Runtime.InteropServices;
using System.Text;
using System.Threading.Tasks;
using System.Xml.Linq;


namespace ConsoleApp24
{
    internal class Program
    {
        static void Main(string[] args)
        {
            string[] fullNames = new string[0];
            string[] jobTitles = new string[0];
            int menuOption;
            bool isWorks = true;

            while (isWorks)
            {
                Console.WriteLine("       МЕНЮ\n1)Добавить досье .\n2)Вывести досье .\n3)Удалить досье .\n4)Поиск по фамилии .\n5)Выход .");
                menuOption = Convert.ToInt32(Console.ReadLine());
                Console.Clear();

                switch (menuOption)
                {
                    case 1:
                        AddDossier(ref fullNames,ref jobTitles);
                        break;
                    case 2:
                        DisplayDossiers(fullNames, jobTitles);
                        break;
                    case 3:
                        DeleteDossier(ref fullNames, ref jobTitles);
                        break;
                    case 4:
                        DossierSearch(fullNames, jobTitles);
                        break;
                    case 5:
                        isWorks = false;
                        break;
                }
            }
        }

        static void AddDossier(ref string[] fullNames,ref string[]jobTitles)
        {
            AddElement(ref fullNames, "Укажите ФИО");
            AddElement(ref jobTitles, "Укажите должность");
        }

        static void DisplayDossiers(string[] fullNames, string[] jobTitles)
        {
            for (int i = 0; i < fullNames.Length; i++)
            {
                Console.WriteLine($"{i + 1}){fullNames[i]} - {jobTitles[i]}");
            }
        }

        static void DeleteDossier(ref string[] fullNames,ref string[] jobTitles)
        {
            Console.WriteLine("Укажите номер досье для удаления : ");
            int dossierNumber = Convert.ToInt32(Console.ReadLine());

            if (dossierNumber > 0 && dossierNumber <= fullNames.Length)
            {
                DeleteElement(dossierNumber, ref fullNames);
                DeleteElement(dossierNumber, ref jobTitles);
            }
            else
            {
                Console.WriteLine("Таких нету.");
            }
        }

        static void DossierSearch(string[] fullNames, string[] jobTitles)
        {
            Console.WriteLine("Укажите фамилию для поиска в базе :");
            string searchFullName = Console.ReadLine();
            bool isFaindDossier = false;

            for (int i = 0; i < fullNames.Length; i++)
            {
                if (fullNames[i] == searchFullName)
                {
                    Console.WriteLine($"{i + 1}){fullNames[i]} - {jobTitles[i]}");
                    isFaindDossier = true;
                }
            }
            if (isFaindDossier == false)
            {
                Console.WriteLine("Таких не держим");
            }
        }

        static void AddElement(ref string[] elements, string text)
        {
            string[] temporaryElements = new string[elements.Length + 1];

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

            Console.WriteLine(text);
            temporaryElements[elements.Length] = Console.ReadLine();
            elements = temporaryElements;
        }

        static void DeleteElement(int elementNumber, ref string[] elements)
        {
            string[] temporaryElements = new string[elements.Length - 1];

            for (int i = elementNumber - 1; i < elements.Length - 1; i++)
            {
                elements[i] = elements[i + 1];
            }
            for (int i = 0; i < temporaryElements.Length; i++)
            {
                temporaryElements[i] = elements[i];
            }

            elements = temporaryElements;
        }
    }
}
[EndCode]