#ifndef AECONT_H_INCLUDED
#define AECONT_H_INCLUDED

 #include <list>

template<class T>
class alternating_endpoint_container:public std::list<T>
{
public:
    void insert(const T &e)
    {
        if(where==0)
        {
            this->push_back(e);
            where++;
        }else
        {
            this->push_front(e);
            where=0;
        }
    }
    const
    T at(const int &pos)const
    {
        typename std::list<T>::const_iterator it=this->begin();
        int i=0;
        for(int i=0;i<pos;i++)it++;
        return *it;
    }
/*

    T at(int pos)
    {
        typename std::list<T>::const_iterator it=this->begin();
        int i=0;
        for(int i=0;i<pos;i++)it++;
        return *it;
    }
*/
private:
    int where=1;
};


#endif // AECONT_H_INCLUDED