Eroare de compilare: user.cpp:22:3: warning: no newline at end of file user.cpp: In function 'int main()': user.cpp:4: error: 'ifstream' was not declared in this scope user.cpp:4: error: expected `;' before 'f' user.cpp:5: error: 'ofstream' was not declared in this scope user.cpp:5: error: expected `;' before 'g' user.cpp:7: error: 'f' was not declared in this scope user.cpp:16: error: 'g' was not declared in this scope user.cpp:18: error: 'g' was not declared in this scope user.cpp:20: error: 'g' was not declared in this scope