Eroare de compilare: user.cpp:2: error: expected constructor, destructor, or type conversion before ‘namespace’ user.cpp:5: error: ‘ifstream’ does not name a type user.cpp: In function ‘long int numar()’: user.cpp:11: error: ‘f’ was not declared in this scope user.cpp: In function ‘int main()’: user.cpp:44: error: ‘f’ was not declared in this scope user.cpp:45: error: ‘ofstream’ was not declared in this scope user.cpp:45: error: expected ‘;’ before ‘g’ user.cpp:46: error: ‘g’ was not declared in this scope