Borderou de evaluare (job #322237)

Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:5:5: error: ‘ifstream’ was not declared in this scope user.cpp:5:14: error: expected ‘;’ before ‘cin’ user.cpp:6:5: error: ‘ofstream’ was not declared in this scope user.cpp:6:14: error: expected ‘;’ before ‘cout’ user.cpp:8:5: error: ‘cin’ was not declared in this scope user.cpp:23:9: error: ‘cout’ was not declared in this scope user.cpp:30:13: error: ‘cout’ was not declared in this scope user.cpp:49:9: error: ‘cout’ was not declared in this scope