Eroare de compilare: user.cpp:1:20: error: iostream.: No such file or directory user.cpp:2:19: error: fstream.: No such file or directory user.cpp: In function ‘int main()’: user.cpp:6: error: ‘fstream’ was not declared in this scope user.cpp:6: error: expected ‘;’ before ‘f1’ user.cpp:7: error: ‘f1’ was not declared in this scope user.cpp:22: error: ‘ofstream’ was not declared in this scope user.cpp:22: error: expected ‘;’ before ‘f2’ user.cpp:23: error: ‘f2’ was not declared in this scope