Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:66:24: error: no match for ‘operator==’ (operand types are ‘std::basic_ostream<char>’ and ‘int’) out << map[x][y] == 0x3f3f3f3f ? -2 : map[x][y] << ' '; ^ user.cpp:66:24: note: candidates are: In file included from /usr/include/c++/4.8/queue:64:0, from user.cpp:2: /usr/include/c++/4.8/bits/stl_queue.h:268:5: note: template<class _Tp, class _Seq> bool std::operator==(const std::queue<_Tp, _Seq>&, const std::queue<_Tp, _Seq>&) operator==(const queue<_Tp, _Seq>& __x, const queue<_Tp, _Seq>& __y) ^ /usr/include/c++/4.8/bits/stl_queue.h:268:5: note: template argument deduction/substitution failed: user.cpp:66:27: note: ‘std::basic_ostream<char>’ is not derived from ‘const std::queue<_Tp, _Seq>’ out << map[x][y] == 0x3f3f3f3f ? -2 : map[x][y] << ' '; ^ In file included from /usr/include/c++/4.8/vector:64:0, from /usr/include/c++/4.8/queue:61, from user.cpp:2: /usr/include/c++/4.8/bits/stl_vector.h:1403:5: note: template<class _Tp, class _Alloc> bool std::operator==(const std::vector<_Tp, _Alloc>&, const std::vector<_Tp, _Alloc>&) operator==(const vector<_Tp, _Alloc>& __x, const vector<_Tp, _Alloc>& __y) ^ /usr/include/c++/4.8/bits/stl_vector.h:1403:5: note: template argument deduction/substitution failed: user.cpp:66:27: note: ‘std::basic_ostream<char>’ is not derived from ‘const std::vector<_Tp, _Alloc>’ out << map[x][y] == 0x3f3f3f3f ? -2 : map[x][y] << ' '; ^ In file included from /usr/include/c++/4.8/deque:64:0, from /usr/include/c++/4.8/queue:60, from user.cpp:2: /usr/include/c++/4.8/bits/stl_deque.h:1957:5: note: template<class _Tp, class _Alloc> bool std::operator==(const std::deque<_Tp, _Alloc>&, const std::deque<_Tp, _Alloc>&) operator==(const deque<_Tp, _Alloc>& __x, ^ /usr/include/c++/4.8/bits/stl_deque.h:1957:5: note: template argument deduction/substitution failed: user.cpp:66:27: note: ‘std::basic_ostream<char>’ is not derived from ‘const std::deque<_Tp, _Alloc>’ out << map[x][y] == 0x3f3f3f3f ? -2 : map[x][y] << ' '; ^ In file included from /usr/include/c++/4.8/deque:64:0, from /usr/include/c++/4.8/queue:60, from user.cpp:2: /usr/include/c++/4.8/bits/stl_deque.h:254:5: note: template<class _Tp, class _RefL, class _PtrL, class _RefR, class _PtrR> bool std::operator==(const std::_Deque_iterator<_Tp, _Ref, _Ptr>&, const std::_Deque_iterator<_Tp, _RefR, _PtrR>&) operator==(const _Deque_iterator<_Tp, _RefL, _PtrL>& __x, ^ /usr/include/c++/4.8/bits/stl_deque.h:254:5: note: template argument deduction/substitution failed: user.cpp:66:27: note: ‘std::basic_ostream<char>’ is not derived from ‘const std::_Deque_iterator<_Tp, _Ref, _Ptr>’ out << map[x][y] == 0x3f3f3f3f ? -2 : map[x][y] << ' '; ^ In file included from /usr/include/c++/4.8/deque:64:0, from /usr/include/c++/4.8/queue:60, from user.cpp:2: /usr/include/c++/4.8/bits/stl_deque.h:247:5: note: template<class _Tp, class _Ref, class _Ptr> bool std::operator==(const std::_Deque_iterator<_Tp, _Ref, _Ptr>&, const std::_Deque_iterator<_Tp, _Ref, _Ptr>&) operator==(const _Deque_iterator<_Tp, _Ref, _Ptr>& __x, ^