#include <iostream>

#include <iostream>

template <typename Tip>
class Skup{
    std::vector<Tip> elementi;
    public: 
    Skup() {}
    Skup(initializer_list<Tip> lista);
    int Velicina() const {return elementi.size()}
    void Dodaj(const Tip &element);
    void Izbrisi(const Tip &element);
    bool ImaLiGa(const Tip &element) const;
    void Ispisi()const;
    bool operator ==(const Skup &s) const{ return elementi == s.elementi;}
    bool operator !=(const Skup &s) const{ return !(*this == s);}
    bool operator <(const Skup &s) const{ return *this <= s && *this != s;}
    bool operator <=(const Skup &s) const{
        for(const Tip &element : elementi)
            if(s.ImaLiGa(element)) return false;
        return true;
    }
    bool operator >(const Skup &s) const{ return s < *this;}
    bool operator >=(const Skup &s) const{ return s <= *this;}
    
    
};
template <typename Tip>
Skup<Tip>::Skup(initializer_list<Tip>lista){
    for(auto x : lista) Dodaj(x);
}
template<typename Tip>
void  Skup<Tip>::Dodaj(const Tip &element){
        if(ImaLiGa(element)) return; 
    
    elementi.push_back(element);
    std::sort(element.begin(), element.end());
}
template <typename Tip>
void Skup<Tip>::Izbrisi(const Tip &element){
    auto it=std::find(elementi.begin(), elementi.end(), element);
    if(it!=elementi.end()) elementi.erase(it);
    
}

template<typename Tip>
bool Skup<Tip>::ImaLiGa(const Tip &element) const{
    return std::binary_search(elementi.begin(), elementi.end(), element);
}

template <typename Tip> 
void Skup<Tip>::Ispisi() const { 
for(auto x : elementi) std::cout << x << " "; 
} 
















int main() {
    std::cout << "Hello world!" << std::endl;
    return 0;
}

int main() {
    std::cout << "Hello world!" << std::endl;
    return 0;
}