#ifndef ZSAK_H
#define ZSAK_H
#include <list>
#include <iostream>

using namespace std;

enum Hibak {NemLetezoElem};

struct lista_elemei
{
    int elem;
    int m;
};

class Zsak
{
    public:
        Zsak() {};
        void add(int &elem_, int m_=1);
        void remove(int &elem_);
        int mul(int &elem_);
        istream& operator>> (istream &be);
        ostream& operator<< (ostream &ki);
        list<lista_elemei> lista;
        friend Zsak unio(Zsak zsak1, Zsak zsak2);
    private:
        list<lista_elemei>::iterator find(const int &elem_);

};

#endif