const_reference top() const;
Returns reference to the top element in the priority queue. This element will be removed on a call to Template:rlpf. If default comparison function is used, the returned element is also the greatest among the elements in the queue.
Reference to the top element as if obtained by a call to c.back() (since C++11)
Reference to the top element as if obtained by a call to c.front() (until C++11)