Task Specialization with method

Method declearation inside class.

Methods body should be decleared outside the class. General function should be given with the template used in class like this: 

typename Vector<T>::const_iterator Vector<T>::begin_z() const {

    if (sz == 0) return end();

    return const_iterator{values};

}

 The same method can be specialized like this: Here, this method only execute when the template is Gossip_Girl. otherwise the above method is executed. 

template<>

Vector<Gossip_Girl>::const_iterator Vector<Gossip_Girl>::begin_z() const

{

    if (sz == 0) return end_z();

          int lastIndexofBrooklyn = -1;

          for(size_t i = 0; i < sz; i++) {

            std::string area = to_string((values+i)->get_area());

              if(area.find("Brooklyn") != std::string::npos) {

                  lastIndexofBrooklyn = i;

              }

          }

          if(lastIndexofBrooklyn == -1) return end_z();

          return const_iterator{values+lastIndexofBrooklyn};

  }