Eroare de compilare: user.cpp:1:20: error: fstream.h: No such file or directory user.cpp: In function ‘int main()’: user.cpp:19: error: ‘ifstream’ was not declared in this scope user.cpp:19: error: expected ‘;’ before ‘f’ user.cpp:20: error: ‘ofstream’ was not declared in this scope user.cpp:20: error: expected ‘;’ before ‘h’ user.cpp:23: error: ‘f’ was not declared in this scope user.cpp:30: error: ‘h’ was not declared in this scope user.cpp:22: warning: unused variable ‘a’ user.cpp:22: warning: unused variable ‘b’