Eroare de compilare: user.cpp:1:21: error: iostream.h: No such file or directory user.cpp:2:20: error: fstream.h: No such file or directory user.cpp: In function ‘int main()’: user.cpp:19: error: ‘fstream’ was not declared in this scope user.cpp:19: error: expected ‘;’ before ‘f’ user.cpp:21: error: ‘f’ was not declared in this scope user.cpp:107: error: expected ‘;’ before ‘g’ user.cpp:108: error: ‘g’ was not declared in this scope user.cpp:18: warning: unused variable ‘n2’ user.cpp: In function ‘int afisare(int)’: user.cpp:150: warning: no return statement in function returning non-void