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2026-06-07 18:27:45 +03:00
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GymEquipment.cs Normal file
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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace Prac8
{
public class GymEquipment : IComparable<GymEquipment>, IEquatable<GymEquipment>
{
public int Number { get; set; }
public string Name { get; set; }
public string Type { get; set; }
public string Condition { get; set; }
public string Place { get; set; }
public GymEquipment()
{
Name = string.Empty;
Type = string.Empty;
Condition = string.Empty;
Place = string.Empty;
}
public GymEquipment(int number, string name, string type, string condition, string place)
{
Number = number;
Name = name;
Type = type;
Condition = condition;
Place = place;
}
public int CompareTo(GymEquipment other)
{
if (other == null)
{
return 1;
}
int byName = string.Compare(Name, other.Name, StringComparison.OrdinalIgnoreCase);
if (byName != 0)
{
return byName;
}
return Number.CompareTo(other.Number);
}
public bool Equals(GymEquipment other)
{
if (other == null)
{
return false;
}
return Number == other.Number
&& string.Equals(Name, other.Name, StringComparison.OrdinalIgnoreCase)
&& string.Equals(Type, other.Type, StringComparison.OrdinalIgnoreCase)
&& string.Equals(Condition, other.Condition, StringComparison.OrdinalIgnoreCase)
&& string.Equals(Place, other.Place, StringComparison.OrdinalIgnoreCase);
}
public override bool Equals(object obj)
{
return Equals(obj as GymEquipment);
}
public override int GetHashCode()
{
return GetSafeHash(Name)
^ GetSafeHash(Type)
^ GetSafeHash(Condition)
^ GetSafeHash(Place)
^ Number;
}
private static int GetSafeHash(string value)
{
return value == null ? 0 : value.ToLowerInvariant().GetHashCode();
}
public override string ToString()
{
return $"№: {Number}, Название: {Name}, Тип: {Type}, Состояние: {Condition}, Место: {Place}";
}
}
}

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using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace Prac8
{
public class MyList<T> : IEnumerable<T>
{
private const int DefaultCapacity = 4;
private T[] _items;
private int _count;
public MyList(int capacity = DefaultCapacity)
{
if (capacity < 1)
{
capacity = DefaultCapacity;
}
_items = new T[capacity];
_count = 0;
}
public int Count => _count;
public T this[int index]
{
get => Get(index);
set
{
ValidateIndex(index);
_items[index] = value;
}
}
public void Add(T item)
{
EnsureCapacity();
_items[_count] = item;
_count++;
}
public void Insert(int index, T item)
{
ValidateInsertIndex(index);
EnsureCapacity();
for (int i = _count; i > index; i--)
{
_items[i] = _items[i - 1];
}
_items[index] = item;
_count++;
}
public void AddRange(MyList<T> otherList)
{
if (otherList == null)
{
throw new ArgumentNullException(nameof(otherList), "Другой список не должен быть null.");
}
MyList<T> source = CreateSafeCopy(otherList);
EnsureCapacityFor(source.Count);
foreach (T item in source)
{
Add(item);
}
}
public void InsertRange(int index, MyList<T> otherList)
{
ValidateInsertIndex(index);
if (otherList == null)
{
throw new ArgumentNullException(nameof(otherList), "Другой список не должен быть null.");
}
if (otherList.Count == 0)
{
return;
}
MyList<T> source = CreateSafeCopy(otherList);
EnsureCapacityFor(source.Count);
for (int i = _count - 1; i >= index; i--)
{
_items[i + source.Count] = _items[i];
}
int insertPosition = index;
foreach (T item in source)
{
_items[insertPosition] = item;
insertPosition++;
}
_count += source.Count;
}
public void RemoveAt(int index)
{
ValidateIndex(index);
for (int i = index; i < _count - 1; i++)
{
_items[i] = _items[i + 1];
}
_count--;
_items[_count] = default(T);
}
public void RemoveLast()
{
if (_count == 0)
{
throw new InvalidOperationException("Нельзя удалить последний элемент из пустого списка.");
}
_count--;
_items[_count] = default(T);
}
public void RemoveRange(int firstIndex, int secondIndex)
{
if (_count == 0)
{
throw new InvalidOperationException("Список пуст.");
}
ValidateIndex(firstIndex);
ValidateIndex(secondIndex);
if (firstIndex > secondIndex)
{
throw new ArgumentException("Первый индекс не может быть больше второго.");
}
int removeCount = secondIndex - firstIndex + 1;
for (int i = firstIndex; i < _count - removeCount; i++)
{
_items[i] = _items[i + removeCount];
}
for (int i = _count - removeCount; i < _count; i++)
{
_items[i] = default(T);
}
_count -= removeCount;
}
public void Clear()
{
for (int i = 0; i < _count; i++)
{
_items[i] = default(T);
}
_count = 0;
}
public T Get(int index)
{
ValidateIndex(index);
return _items[index];
}
public void Print()
{
if (_count == 0)
{
Console.WriteLine("Список пуст.");
return;
}
for (int i = 0; i < _count; i++)
{
Console.WriteLine($"[{i}] {_items[i]}");
}
}
public T Find(Predicate<T> match)
{
if (match == null)
{
throw new ArgumentNullException(nameof(match), "Предикат не должен быть null.");
}
for (int i = 0; i < _count; i++)
{
if (match(_items[i]))
{
return _items[i];
}
}
return default(T);
}
public void EnsureCapacity()
{
if (_count < _items.Length)
{
return;
}
int newCapacity = _items.Length == 0 ? DefaultCapacity : _items.Length * 2;
Array.Resize(ref _items, newCapacity);
}
public void Sort(int index)
{
if (index != 0 && index != 1)
{
throw new ArgumentException("Для сортировки используйте 1 - по возрастанию или 0 - по убыванию.");
}
if (_count < 2)
{
return;
}
Comparer<T> comparer = Comparer<T>.Default;
bool ascending = index == 1;
for (int i = 0; i < _count - 1; i++)
{
int selectedIndex = i;
for (int j = i + 1; j < _count; j++)
{
int compareResult = comparer.Compare(_items[j], _items[selectedIndex]);
if ((ascending && compareResult < 0) || (!ascending && compareResult > 0))
{
selectedIndex = j;
}
}
if (selectedIndex != i)
{
T temp = _items[i];
_items[i] = _items[selectedIndex];
_items[selectedIndex] = temp;
}
}
}
public void Reverse()
{
int left = 0;
int right = _count - 1;
while (left < right)
{
T temp = _items[left];
_items[left] = _items[right];
_items[right] = temp;
left++;
right--;
}
}
public void Distinct()
{
if (_count < 2)
{
return;
}
EqualityComparer<T> comparer = EqualityComparer<T>.Default;
T[] uniqueItems = new T[Math.Max(DefaultCapacity, _count)];
int uniqueCount = 0;
for (int i = 0; i < _count; i++)
{
bool exists = false;
for (int j = 0; j < uniqueCount; j++)
{
if (comparer.Equals(_items[i], uniqueItems[j]))
{
exists = true;
break;
}
}
if (!exists)
{
uniqueItems[uniqueCount] = _items[i];
uniqueCount++;
}
}
_items = uniqueItems;
_count = uniqueCount;
}
public IEnumerator<T> GetEnumerator()
{
for (int i = 0; i < _count; i++)
{
yield return _items[i];
}
}
IEnumerator IEnumerable.GetEnumerator()
{
return GetEnumerator();
}
private void ValidateIndex(int index)
{
if (index < 0 || index >= _count)
{
throw new IndexOutOfRangeException("Индекс находится вне границ списка.");
}
}
private void ValidateInsertIndex(int index)
{
if (index < 0 || index > _count)
{
throw new IndexOutOfRangeException("Индекс для вставки находится вне границ списка.");
}
}
private void EnsureCapacityFor(int additionalItems)
{
while (_count + additionalItems > _items.Length)
{
int newCapacity = _items.Length == 0 ? DefaultCapacity : _items.Length * 2;
Array.Resize(ref _items, newCapacity);
}
}
private static MyList<T> CreateSafeCopy(MyList<T> source)
{
MyList<T> copy = new MyList<T>(Math.Max(DefaultCapacity, source.Count));
foreach (T item in source)
{
copy.Add(item);
}
return copy;
}
}
}

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<Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<OutputType>Exe</OutputType>
<TargetFramework>net9.0</TargetFramework>
<ImplicitUsings>enable</ImplicitUsings>
<Nullable>enable</Nullable>
</PropertyGroup>
</Project>

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Microsoft Visual Studio Solution File, Format Version 12.00
# Visual Studio Version 17
VisualStudioVersion = 17.14.36429.23 d17.14
MinimumVisualStudioVersion = 10.0.40219.1
Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Prac8", "Prac8.csproj", "{7B2E7D89-B72B-437B-8ADB-27901B43B4B8}"
EndProject
Global
GlobalSection(SolutionConfigurationPlatforms) = preSolution
Debug|Any CPU = Debug|Any CPU
Release|Any CPU = Release|Any CPU
EndGlobalSection
GlobalSection(ProjectConfigurationPlatforms) = postSolution
{7B2E7D89-B72B-437B-8ADB-27901B43B4B8}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
{7B2E7D89-B72B-437B-8ADB-27901B43B4B8}.Debug|Any CPU.Build.0 = Debug|Any CPU
{7B2E7D89-B72B-437B-8ADB-27901B43B4B8}.Release|Any CPU.ActiveCfg = Release|Any CPU
{7B2E7D89-B72B-437B-8ADB-27901B43B4B8}.Release|Any CPU.Build.0 = Release|Any CPU
EndGlobalSection
GlobalSection(SolutionProperties) = preSolution
HideSolutionNode = FALSE
EndGlobalSection
GlobalSection(ExtensibilityGlobals) = postSolution
SolutionGuid = {CEBDCD76-826A-4855-873E-397E0F7768EC}
EndGlobalSection
EndGlobal

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Program.cs Normal file
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using System;
using System.Collections;
using System.Collections.Generic;
using System.Text;
namespace Prac8
{
internal class Program
{
private static void Main()
{
Console.OutputEncoding = Encoding.UTF8;
MyList<GymEquipment> equipmentList = new MyList<GymEquipment>();
bool isRunning = true;
while (isRunning)
{
PrintMenu();
Console.Write("Выберите действие: ");
string choice = Console.ReadLine();
Console.WriteLine();
try
{
switch (choice)
{
case "1":
equipmentList.Add(ReadEquipment());
Console.WriteLine("Тренажёр добавлен в конец списка.");
break;
case "2":
{
int index = ReadInt("Введите индекс для вставки: ");
equipmentList.Insert(index, ReadEquipment());
Console.WriteLine("Тренажёр вставлен по указанному индексу.");
break;
}
case "3":
{
int index = ReadInt("Введите индекс изменяемого элемента: ");
equipmentList[index] = ReadEquipment();
Console.WriteLine("Элемент успешно изменён.");
break;
}
case "4":
equipmentList.RemoveLast();
Console.WriteLine("Последний элемент удалён.");
break;
case "5":
{
int index = ReadInt("Введите индекс удаляемого элемента: ");
equipmentList.RemoveAt(index);
Console.WriteLine("Элемент удалён.");
break;
}
case "6":
Console.WriteLine($"Количество элементов: {equipmentList.Count}");
break;
case "7":
equipmentList.Print();
break;
case "8":
{
int index = ReadInt("Введите индекс элемента: ");
Console.WriteLine(equipmentList.Get(index));
break;
}
case "9":
AddRangeInteractive(equipmentList);
break;
case "10":
InsertRangeInteractive(equipmentList);
break;
case "11":
{
int firstIndex = ReadInt("Введите первый индекс: ");
int secondIndex = ReadInt("Введите второй индекс: ");
equipmentList.RemoveRange(firstIndex, secondIndex);
Console.WriteLine("Диапазон элементов удалён.");
break;
}
case "12":
FindEquipment(equipmentList);
break;
case "13":
{
int sortMode = ReadInt("Введите 1 для сортировки по возрастанию или 0 для сортировки по убыванию: ");
equipmentList.Sort(sortMode);
Console.WriteLine("Список отсортирован.");
break;
}
case "14":
equipmentList.Reverse();
Console.WriteLine("Список развёрнут.");
break;
case "15":
equipmentList.Distinct();
Console.WriteLine("Дубликаты удалены.");
break;
case "16":
equipmentList.Clear();
Console.WriteLine("Список очищен.");
break;
case "17":
PrintWithForeach(equipmentList);
break;
case "0":
isRunning = false;
Console.WriteLine("Программа завершена.");
break;
default:
Console.WriteLine("Такого пункта меню нет. Люди, как обычно, выбирают что попало.");
break;
}
}
catch (Exception ex)
{
Console.WriteLine($"Ошибка: {ex.Message}");
}
if (isRunning)
{
Pause();
Console.Clear();
}
}
}
private static void PrintMenu()
{
Console.WriteLine("Меню работы с MyList<Тренажёр>:");
Console.WriteLine("1 - Добавить элемент в конец");
Console.WriteLine("2 - Добавить элемент по индексу");
Console.WriteLine("3 - Изменить элемент по индексу");
Console.WriteLine("4 - Удалить последний элемент");
Console.WriteLine("5 - Удалить элемент по индексу");
Console.WriteLine("6 - Получить количество элементов");
Console.WriteLine("7 - Вывести список");
Console.WriteLine("8 - Вывести элемент по индексу");
Console.WriteLine("9 - Добавить диапазон элементов в конец");
Console.WriteLine("10 - Вставить диапазон элементов по индексу");
Console.WriteLine("11 - Удалить диапазон элементов");
Console.WriteLine("12 - Найти элемент по условию");
Console.WriteLine("13 - Сортировать список");
Console.WriteLine("14 - Развернуть список");
Console.WriteLine("15 - Удалить дубликаты");
Console.WriteLine("16 - Очистить список");
Console.WriteLine("17 - Вывести список через foreach");
Console.WriteLine("0 - Выход");
Console.WriteLine();
}
private static GymEquipment ReadEquipment()
{
Console.WriteLine("Введите данные тренажёра:");
int number = ReadInt("№: ");
string name = ReadRequiredString("Название: ");
string type = ReadRequiredString("Тип: ");
string condition = ReadRequiredString("Состояние: ");
string place = ReadRequiredString("Место: ");
return new GymEquipment(number, name, type, condition, place);
}
private static void AddRangeInteractive(MyList<GymEquipment> equipmentList)
{
int count = ReadInt("Сколько элементов нужно добавить в конец: ");
if (count <= 0)
{
Console.WriteLine("Количество должно быть больше нуля.");
return;
}
MyList<GymEquipment> tempList = new MyList<GymEquipment>(count);
for (int i = 0; i < count; i++)
{
Console.WriteLine($"\nЭлемент {i + 1} из {count}:");
tempList.Add(ReadEquipment());
}
equipmentList.AddRange(tempList);
Console.WriteLine("Диапазон элементов добавлен в конец списка.");
}
private static void InsertRangeInteractive(MyList<GymEquipment> equipmentList)
{
int index = ReadInt("Введите индекс для вставки диапазона: ");
int count = ReadInt("Сколько элементов нужно вставить: ");
if (count <= 0)
{
Console.WriteLine("Количество должно быть больше нуля.");
return;
}
MyList<GymEquipment> tempList = new MyList<GymEquipment>(count);
for (int i = 0; i < count; i++)
{
Console.WriteLine($"\nЭлемент {i + 1} из {count}:");
tempList.Add(ReadEquipment());
}
equipmentList.InsertRange(index, tempList);
Console.WriteLine("Диапазон элементов вставлен.");
}
private static void FindEquipment(MyList<GymEquipment> equipmentList)
{
if (equipmentList.Count == 0)
{
Console.WriteLine("Список пуст.");
return;
}
string fragment = ReadRequiredString("Введите текст для поиска (по названию, типу, состоянию или месту): ");
GymEquipment found = equipmentList.Find(item =>
item.Name.IndexOf(fragment, StringComparison.OrdinalIgnoreCase) >= 0
|| item.Type.IndexOf(fragment, StringComparison.OrdinalIgnoreCase) >= 0
|| item.Condition.IndexOf(fragment, StringComparison.OrdinalIgnoreCase) >= 0
|| item.Place.IndexOf(fragment, StringComparison.OrdinalIgnoreCase) >= 0);
if (found == null)
{
Console.WriteLine("Подходящий элемент не найден.");
}
else
{
Console.WriteLine("Найденный элемент:");
Console.WriteLine(found);
}
}
private static void PrintWithForeach(MyList<GymEquipment> equipmentList)
{
if (equipmentList.Count == 0)
{
Console.WriteLine("Список пуст.");
return;
}
int index = 0;
foreach (GymEquipment equipment in equipmentList)
{
Console.WriteLine($"[{index}] {equipment}");
index++;
}
}
private static int ReadInt(string message)
{
while (true)
{
Console.Write(message);
string input = Console.ReadLine();
if (int.TryParse(input, out int value))
{
return value;
}
Console.WriteLine("Введите целое число.");
}
}
private static string ReadRequiredString(string message)
{
while (true)
{
Console.Write(message);
string input = Console.ReadLine();
if (!string.IsNullOrWhiteSpace(input))
{
return input.Trim();
}
Console.WriteLine("Строка не должна быть пустой.");
}
}
private static void Pause()
{
Console.WriteLine();
Console.WriteLine("Нажмите Enter, чтобы продолжить...");
Console.ReadLine();
}
}
}