Eroare de compilare: user.cpp:1:20: error: fstream.h: No such file or directory user.cpp:4: error: ‘ifstream’ does not name a type user.cpp: In function ‘long int numar()’: user.cpp:10: error: ‘f’ was not declared in this scope user.cpp: In function ‘int main()’: user.cpp:43: error: ‘f’ was not declared in this scope user.cpp:44: error: ‘ofstream’ was not declared in this scope user.cpp:44: error: expected ‘;’ before ‘g’ user.cpp:45: error: ‘g’ was not declared in this scope