Compilare: user.cpp: In member function ‘bool Treap<T>::find(Node<T>*, T) [with T = int]’: user.cpp:225:1: warning: control reaches end of non-void function [-Wreturn-type] } ^ user.cpp: In member function ‘T Treap<T>::max_element() [with T = int]’: user.cpp:204:1: warning: control reaches end of non-void function [-Wreturn-type] } ^ user.cpp: In member function ‘T Treap<T>::min_element() [with T = int]’: user.cpp:216:1: warning: control reaches end of non-void function [-Wreturn-type] } ^