Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:19:23: error: could not convert ‘it’ from ‘std::unordered_map<int, int>::iterator {aka std::__detail::_Node_iterator<std::pair<const int, int>, false, false>}’ to ‘bool’ for(it=h.begin(); it!h.end(); it++) ^ user.cpp:19:25: error: expected ‘;’ before ‘!’ token for(it=h.begin(); it!h.end(); it++) ^ user.cpp:19:25: error: no match for ‘operator!’ (operand type is ‘std::unordered_map<int, int>::iterator {aka std::__detail::_Node_iterator<std::pair<const int, int>, false, false>}’) user.cpp:19:25: note: candidate is: user.cpp:19:25: note: operator!(bool) <built-in> user.cpp:19:25: note: no known conversion for argument 1 from ‘std::unordered_map<int, int>::iterator {aka std::__detail::_Node_iterator<std::pair<const int, int>, false, false>}’ to ‘bool’ user.cpp:19:33: error: expected ‘)’ before ‘;’ token for(it=h.begin(); it!h.end(); it++) ^ user.cpp:19:39: error: expected ‘;’ before ‘)’ token for(it=h.begin(); it!h.end(); it++) ^