Compilare: user.cpp: In constructor ‘Container::Container(std::vector<int>, int)’: user.cpp:47:11: warning: ‘Container::n’ will be initialized after [-Wreorder] int n; ^ user.cpp:46:19: warning: ‘std::vector<int> Container::arr’ [-Wreorder] vector<int> arr; ^ user.cpp:13:7: warning: when initialized here [-Wreorder] Container(vector<int> vec, int _n): n(_n),arr(vec){}; ^ user.cpp: In function ‘std::ostream& operator<<(std::ostream&, const Container&)’: user.cpp:43:7: warning: no return statement in function returning non-void [-Wreturn-type] }; ^