Eroare de compilare: user.cpp: In function ‘void lee2()’: user.cpp:63:26: error: no matching function for call to ‘std::queue<std::pair<int, int> >::push(<unresolved overloaded function type>)’ q3.push(make_pair) ^ In file included from /usr/include/c++/5/queue:64:0, from user.cpp:3: /usr/include/c++/5/bits/stl_queue.h:215:7: note: candidate: void std::queue<_Tp, _Sequence>::push(const value_type&) [with _Tp = std::pair<int, int>; _Sequence = std::deque<std::pair<int, int>, std::allocator<std::pair<int, int> > >; std::queue<_Tp, _Sequence>::value_type = std::pair<int, int>] push(const value_type& __x) ^ /usr/include/c++/5/bits/stl_queue.h:215:7: note: no known conversion for argument 1 from ‘<unresolved overloaded function type>’ to ‘const value_type& {aka const std::pair<int, int>&}’ /usr/include/c++/5/bits/stl_queue.h:220:7: note: candidate: void std::queue<_Tp, _Sequence>::push(std::queue<_Tp, _Sequence>::value_type&&) [with _Tp = std::pair<int, int>; _Sequence = std::deque<std::pair<int, int>, std::allocator<std::pair<int, int> > >; std::queue<_Tp, _Sequence>::value_type = std::pair<int, int>] push(value_type&& __x) ^ /usr/include/c++/5/bits/stl_queue.h:220:7: note: no known conversion for argument 1 from ‘<unresolved overloaded function type>’ to ‘std::queue<std::pair<int, int> >::value_type&& {aka std::pair<int, int>&&}’ user.cpp: In function ‘void b()’: user.cpp:69:10: warning: unused variable ‘ok’ [-Wunused-variable] bool ok=true; ^