lr8

#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]);
    }
}

int main() {
    setlocale(LC_CTYPE, "");
    int num;
    cout << "Кiлькiсть елементiв: ";
    cin >> num;
    int** mass = new int* [num];
    for (int i = 0; i < num; i++)
    {
        mass[i] = new int[num];
    }
    for (int i = 0; i < num; i++)
    {
        for (int j = 0; j < num; j++)
        {
            mass[i][j] = rand() % 10;
            cout << mass[i][j] << " ";
        }
        cout << endl;
    }
    int* arr = new int[num];
    int index = 0;
    int element = 0;
    cout << endl;
    for (int i = 0; i < num; i++)
    {
        arr[index] = mass[i][27];
        index++;
    }

    for (int i = 0; i < index; i++) {
        cout << arr[i] << "\t";
    }


    cout << "\nВiдсортований масив 28 стовбця:" << endl;
    choicesSort(arr, index);

    for (int i = 0; i < index; i++) {
        cout << arr[i] << "\t";
    }
    delete[] mass;
    delete[] arr;

    return 0;
}