Eroare de compilare: user.cpp:3: error: variable ‘std::ifstream cin’ has initializer but incomplete type user.cpp:4: error: variable ‘std::ofstream cout’ has initializer but incomplete type user.cpp: In function ‘int main()’: user.cpp:9: error: reference to ‘cin’ is ambiguous user.cpp:3: error: candidates are: <typeprefixerror>cin /usr/include/c++/4.4/iostream:58: error: std::istream std::cin user.cpp:9: error: reference to ‘cin’ is ambiguous user.cpp:3: error: candidates are: <typeprefixerror>cin /usr/include/c++/4.4/iostream:58: error: std::istream std::cin user.cpp:21: error: reference to ‘cout’ is ambiguous user.cpp:4: error: candidates are: <typeprefixerror>cout /usr/include/c++/4.4/iostream:59: error: std::ostream std::cout user.cpp:21: error: reference to ‘cout’ is ambiguous user.cpp:4: error: candidates are: <typeprefixerror>cout /usr/include/c++/4.4/iostream:59: error: std::ostream std::cout