Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:8:17: error: variable ‘std::ifstream in’ has initializer but incomplete type ifstream in ("elmaj.in"); ^ user.cpp:9:18: error: variable ‘std::ofstream out’ has initializer but incomplete type ofstream out ("elmaj.out"); ^ user.cpp:29:1: error: expected ‘}’ at end of input } ^