Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:33: error: no matching function for call to ‘std::queue<std::pair<int, int>, std::deque<std::pair<int, int>, std::allocator<std::pair<int, int> > > >::push(int&)’ /usr/include/c++/4.4/bits/stl_queue.h:218: note: candidates are: void std::queue<_Tp, _Sequence>::push(const typename _Sequence::value_type&) [with _Tp = std::pair<int, int>, _Sequence = std::deque<std::pair<int, int>, std::allocator<std::pair<int, int> > >] user.cpp:12: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:13: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:17: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp:19: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result