Eroare de compilare: user.cpp:3: error: expected constructor, destructor, or type conversion before ‘namespace’ user.cpp:4: error: ‘ifstream’ does not name a type user.cpp:5: error: ‘ofstream’ does not name a type user.cpp: In function ‘int main()’: user.cpp:10: error: ‘g’ was not declared in this scope user.cpp:23: error: ‘h’ was not declared in this scope user.cpp:23: error: ‘endl’ was not declared in this scope user.cpp:8: warning: unused variable ‘mod’ user.cpp:9: warning: unused variable ‘aux’