Eroare de compilare: user.cpp: In function ‘void coada()’: user.cpp:27:11: error: ‘class std::queue<std::pair<int, int> >’ has no member named ‘pop_front’; did you mean ‘front’? c.pop_front(); ^~~~~~~~~ user.cpp:34:19: error: ‘class std::queue<std::pair<int, int> >’ has no member named ‘push_back’ c.push_back({x1,y1}); ^~~~~~~~~ user.cpp: In function ‘int main()’: user.cpp:59:23: error: ‘class std::queue<std::pair<int, int> >’ has no member named ‘push_back’ c.push_back({i,j}); ^~~~~~~~~ user.cpp:66:23: error: ‘class std::queue<std::pair<int, int> >’ has no member named ‘push_back’ c.push_back({i,j}); ^~~~~~~~~ user.cpp:73:23: error: ‘class std::queue<std::pair<int, int> >’ has no member named ‘push_back’ c.push_back({i,j}); ^~~~~~~~~ user.cpp:80:23: error: ‘class std::queue<std::pair<int, int> >’ has no member named ‘push_back’ c.push_back({i,j}); ^~~~~~~~~