#include <iostream>
#include <map>
#include <algorithm>
#include <list>
#include <string>
#include <sstream>
#include <memory>
//zadanie trzecie
class StringList{
private:
    std::list<std::string> lista;
    //std::list<std::string>::iterator  it=lista.begin();
    std::shared_ptr<std::list<std::string>::iterator>  it= std::make_shared<std::list<std::string>::iterator>(lista.begin());//lista.begin();
public:
    void operator()(std::string,bool);
    void print_list();
    friend std::ostream& operator<<(std::ostream& os,StringList& SL);
};
std::ostream& operator<<(std::ostream& os, StringList& SL){
    //auto it=*SL.it
    os<<*(SL.it)
    return os;
}

void StringList::operator()(std::string str,bool b){
    if(b==true)
        lista.push_back(str);
    if(b==false){
        auto pos=std::find(lista.begin(),lista.end(),str);
        if(pos!=lista.end())
            lista.erase(pos);
        else
            std::cout<<"Nie ma tagiego elementa w liste"<<std::endl;
    }
}

void StringList::print_list(){
    for(auto i: lista)
        std::cout<<i<<" ";
    std::cout<<std::endl;
}


int main()
{
    StringList SL;
    SL("ALA",true);
    SL("MA",true);
    SL("KOTA",true);
    std::cout<<SL;
    return 0;
}