copy constructor

#include "pch.h"
#include <iostream>
#include <algorithm>
using namespace std;

class Integers {
public:
    int *niz = new int[100];
    int *length = new int;
    Integers()
    {
        *length = 0;
    }
    Integers(Integers &p, int len)
    {
        *length = 0;
        for (int i = 0; i < len; i++)
        {
            //cout << "len: " << len << endl;
            //cout << niz[*length] << endl;
            niz[*length] = p.niz[i];
            *length += 1;
        }
    }
    int GetLength()
    {
        return *length;
    }
    void Add(int num)
    {
        niz[*length] = num;
        *length += 1;
    }
    void Remove()
    {
        niz[*length] = NULL;
        *length -= 1;
    }
    void Print()
    {
        for (int i = 0; i < *length; i++)
        {
            cout << niz[i] << " ";
        }
        cout << endl;
    }
    void PrintSorted(Integers n1)
    {
        sort(&n1.niz[0], &n1.niz[*length]);

        for (int i = 0; i < *length; i++)
        {
            cout << n1.niz[i] << " ";
        }
        cout << endl;
    }
};

int main()
{
    Integers s1;
    s1.Add(10);
    s1.Add(30);
    s1.Add(25);
    s1.Add(5);
    //s2 = s1;
    Integers s2(s1, s1.GetLength());
    s2.Add(50);
    s2.Add(1);

    s1.Print();
    s2.Print();

    cout << "s1 sorted:";
    s1.PrintSorted(s1);
    cout << "s2 sorted:";
    s2.PrintSorted(s2);
}