Eroare de compilare: user.cpp: In function ‘void Paranteze()’: user.cpp:17:24: error: cannot convert ‘std::vector<char>::iterator {aka __gnu_cxx::__normal_iterator<char*, std::vector<char> >}’ to ‘int’ in initialization for (int i=V.begin(); i < V.size()-1; i++) /// i=0 ^ user.cpp:17:40: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=V.begin(); i < V.size()-1; i++) /// i=0 ^