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: In function ‘int main()’: user.cpp:15: error: ‘fstream’ was not declared in this scope user.cpp:15: error: expected ‘;’ before ‘f’ user.cpp:16: error: expected ‘;’ before ‘g’ user.cpp:17: error: ‘f’ was not declared in this scope user.cpp:73: error: ‘g’ was not declared in this scope user.cpp:76: error: ‘g’ was not declared in this scope user.cpp:79: error: ‘g’ was not declared in this scope