Eroare de compilare: user.cpp:1:21: error: fstream.h: No such file or directory user.cpp:5: error: ‘ifstream’ does not name a type user.cpp:6: error: ‘ofstream’ does not name a type user.cpp: In function ‘int main()’: user.cpp:12: error: ‘f’ was not declared in this scope user.cpp:24: warning: comparison between signed and unsigned integer expressions user.cpp:31: error: ‘g’ was not declared in this scope user.cpp:44: error: ‘g’ was not declared in this scope