Eroare de compilare: user.cpp:10: error: ‘ifstream’ does not name a type user.cpp:11: error: ‘ofstream’ does not name a type user.cpp:12: warning: ISO C++ forbids declaration of ‘main’ with no type user.cpp: In function ‘int main()’: user.cpp:15: error: ‘f’ was not declared in this scope user.cpp:19: error: ‘g’ was not declared in this scope user.cpp:19: error: ‘endl’ was not declared in this scope user.cpp:24: error: ‘g’ was not declared in this scope user.cpp:24: error: ‘endl’ was not declared in this scope user.cpp:24: error: ‘g’ was not declared in this scope user.cpp:24: error: ‘endl’ was not declared in this scope