Eroare de compilare: user.cpp: In function ‘void citire()’: user.cpp:18: error: ‘ifstream’ was not declared in this scope user.cpp:18: error: expected ‘;’ before ‘fin’ user.cpp:20: error: ‘fin’ was not declared in this scope user.cpp:19: warning: unused variable ‘j’ user.cpp: In function ‘void afisare()’: user.cpp:45: error: ‘ofstream’ was not declared in this scope user.cpp:45: error: expected ‘;’ before ‘fout’ user.cpp:47: error: ‘fout’ was not declared in this scope user.cpp:48: error: ‘cout’ was not declared in this scope user.cpp:51: error: ‘fout’ was not declared in this scope user.cpp:51: error: ‘endl’ was not declared in this scope user.cpp:52: error: ‘cout’ was not declared in this scope user.cpp:59: error: ‘fout’ was not declared in this scope