---

using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.IO;
using System.Linq;
using System.Reflection.Emit;
using System.Windows.Forms;
using static System.Windows.Forms.VisualStyles.VisualStyleElement;


namespace WinFormsApp16
{
    public partial class Form1 : Form
    {
        private List<string> lines = new List<string>();
        public Form1()
        {
            InitializeComponent();
            comboBox1.Items.Clear();
            comboBox1.Items.AddRange(new string[] { "Пузырёк", "Вставками", "Быстрая сортировка" });
            if (comboBox1.Items.Count > 0) comboBox1.SelectedIndex = 0;
            label1.Text = "Строк: 0";
            


           
        }

        private void comboBox1_SelectedIndexChanged(object sender, EventArgs e)
        {

        }

        private void button2_Click(object sender, EventArgs e)
        {
            if (lines.Count == 0) return;

            string method = comboBox1.SelectedItem?.ToString();

            System.Diagnostics.Stopwatch sw = System.Diagnostics.Stopwatch.StartNew();

            if (method == "Пузырёк") BubbleSort(lines);
            else if (method == "Вставками") InsertionSort(lines);
            else if (method == "Быстрая сортировка") QuickSort(lines, 0, lines.Count - 1);

            sw.Stop();

            UpdateUI();
            label1.Text = $"Строк: {lines.Count} | Время: {sw.ElapsedMilliseconds} мс";
        }

        private void button3_Click(object sender, EventArgs e)
        {
            if (lines.Count == 0) return;

            SaveFileDialog sfd = new SaveFileDialog { Filter = "Текстовые файлы|*.txt" };
            if (sfd.ShowDialog() == DialogResult.OK)
            {
                File.WriteAllLines(sfd.FileName, lines);
                MessageBox.Show("Файл сохранен!");
            }
        }
        private void BubbleSort(List<string> list)
        {
            for (int i = 0; i < list.Count - 1; i++)
                for (int j = 0; j < list.Count - i - 1; j++)
                    if (string.Compare(list[j], list[j + 1]) > 0)
                    {
                        string temp = list[j];
                        list[j] = list[j + 1];
                        list[j + 1] = temp;
                    }
        }
        private void UpdateUI()
        {
            listBox1.Items.Clear();
            listBox1.Items.AddRange(lines.ToArray());
            label1.Text = $"Строк: {lines.Count}";
        }
        private void InsertionSort(List<string> list)
        {
            for (int i = 1; i < list.Count; i++)
            {
                string key = list[i];
                int j = i - 1;
                while (j >= 0 && string.Compare(list[j], key) > 0)
                {
                    list[j + 1] = list[j];
                    j--;
                }
                list[j + 1] = key;
            }
        }

        private void QuickSort(List<string> list, int low, int high)
        {
            if (low < high)
            {
                int p = Partition(list, low, high);
                QuickSort(list, low, p);
                QuickSort(list, p + 1, high);
            }
        }
        private int Partition(List<string> list, int low, int high)
        {
            string pivot = list[(low + high) / 2];
            int i = low - 1;
            int j = high + 1;
            while (true)
            {
                do { i++; } while (string.Compare(list[i], pivot) < 0);
                do { j--; } while (string.Compare(list[j], pivot) > 0);
                if (i >= j) return j;
                string temp = list[i];
                list[i] = list[j];
                list[j] = temp;
            }
        }
        private void listBox1_SelectedIndexChanged(object sender, EventArgs e) { }

        private void label1_Click(object sender, EventArgs e)
        {

        }

        private void button1_Click(object sender, EventArgs e)
        {
            OpenFileDialog ofd = new OpenFileDialog { Filter = "Текстовые файлы|*.txt" };
            if (ofd.ShowDialog() == DialogResult.OK)
            {
                lines = File.ReadAllLines(ofd.FileName).ToList();
                UpdateUI();
            }
        }
    }
}