Eroare de compilare: user.cpp:2:21: error: iostream.h: No such file or directory user.cpp:3:20: error: fstream.h: No such file or directory user.cpp:4: error: ‘fstream’ does not name a type user.cpp: In function ‘int main()’: user.cpp:18: error: ‘f’ was not declared in this scope user.cpp:20: error: ‘f’ was not declared in this scope user.cpp: In function ‘void afisare(nod*&, nod*&)’: user.cpp:50: error: ‘cout’ was not declared in this scope user.cpp:53: error: ‘cout’ was not declared in this scope