#include "stdafx.h"
#include <iostream>

using namespace std;

class Elem {

public:
    int l;
    Elem *nast;
};

class Stos {
public:

    Elem *ostatni;
    Stos()
    {
        cout<<"Konstruktor"<<endl;
        ostatni=NULL;
        cout<<this<<endl;
    }

    void pop() {
        Elem* tmp=ostatni;
        ostatni=ostatni->nast;
        delete tmp;
    }

    void push (int l) {
        Elem* nowy=new Elem;
        nowy->nast=ostatni;
        nowy->l=l;
        ostatni=nowy;
    }
    int top() { return ostatni->l; }

    int full() {return 0; }

    int empty() {return ostatni==NULL; }

    ~Stos() {
        cout<<"Destruktor"<<endl;
        cout<<this<<endl;
        while (! this->empty())
            this->pop();
    }
};

Stos Wypisz(Stos &a) {
    Stos kopia;
    while (! a.empty())
    {
    //  cout << " " << a.top();
        kopia.push(a.top());
        a.pop();
    }
    cout<<endl;
    while (! kopia.empty())
    {
        a.push(kopia.top());
        kopia.pop();
    }
    return kopia;
}

int _tmain(int argc, _TCHAR* argv[])
{
    Stos *s1 = new Stos();
    s1->push(10);
    s1->push(20);
    Wypisz(*s1);
    delete s1;
    system("pause");
    return 0;
}