Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:38: error: expected ‘;’ before ‘insert_aib’ user.cpp:41: warning: comparison between signed and unsigned integer expressions user.cpp:43: error: ‘v.std::vector<_Tp, _Alloc>::operator[] [with _Tp = std::pair<int, int>, _Alloc = std::allocator<std::pair<int, int> >](((unsigned int)i))->std::pair<int, int>::second’ cannot be used as a function