8

#include <iostream>
#include <conio.h>
#include <time.h>
#include <chrono>
#include <fstream>
#include <sstream>
#include <algorithm>
#include <string>

using namespace std;

void swap(int* xp, int* yp)
{
    int temp = *xp;
    *xp = *yp;
    *yp = temp;
}

void choicesSort(int* arr, int n)
{
    int i, j, min_idx;

    for (i = 0; i < n - 1; i++)
    {
        min_idx = i;
        for (j = i + 1; j < n; j++)
            if (arr[j] < arr[min_idx])
                min_idx = j;

        swap(&arr[min_idx], &arr[i]);
    }
}
void ReadFile(string patch) {
    std::string line;

    std::ifstream in(patch); // окрываем файл для чтения
    if (in.is_open())
    {
        while (getline(in, line))
        {
            std::cout << line << std::endl;
        }
    }
    in.close();
}

int WriteToArr(string patch, int* mass) {
    int temp;

    std::ifstream fl(patch);
    int index = 0;
    if (!fl)
    {
        cout << "File not found" << std::endl;
    }
    else {
        while (fl >> temp) {
            mass[index] = temp;
            index++;
        }
    }
    fl.close();
    return index;
}
void Write(string path, int* arr, int size) {
    fstream f;
    f.open(path, fstream::in | fstream::out);

    if (f.is_open() == NULL)
    {
        cout << "error!";
    }
    for (int i = 0; i < size; i++)
        f << arr[i] << " ";
    f.close();
}
void PrintArr(int* arr, int size) {
    for (int i = 0; i < size; i++) {
        cout << arr[i] << "\t";
    }
}
int main() {
    setlocale(LC_CTYPE, "");
    string path10 = "input__10.txt";
    string path100 = "input__100.txt";
    string path1000 = "input__1000.txt";
    string path10000 = "input__10000.txt";
    int num;
    cout << "Кiлькiсть елементiв: ";
    cin >> num;
    int* mass = new int[num];

    for (int i = 0; i < num; i++)
        mass[i] = rand() % 47;

    Write(path10, mass, num);


    ReadFile(path10);

    int index = WriteToArr(path10, mass);

    cout << "\nВiдсортований масив:" << endl;
    auto start = chrono::high_resolution_clock::now();
    choicesSort(mass, index);
    auto finish = chrono::high_resolution_clock::now();
    PrintArr(mass, index);
    cout << "\nЧас сортування: " << chrono::duration_cast<chrono::duration<double>>(finish - start).count() << " секунд\n";


    return 0;
}