Eroare de compilare: user.cpp:33:2: warning: no newline at end of file user.cpp: In function 'int main()': user.cpp:6: error: 'ifstream' was not declared in this scope user.cpp:6: error: expected `;' before 'f' user.cpp:7: error: 'ofstream' was not declared in this scope user.cpp:7: error: expected `;' before 'ff' user.cpp:8: error: 'f' was not declared in this scope user.cpp:9: error: 'ff' was not declared in this scope