Eroare de compilare: user.cpp:1:20: error: fstream.h: No such file or directory user.cpp: In function ‘int main()’: user.cpp:8: error: ‘ifstream’ was not declared in this scope user.cpp:8: error: expected ‘;’ before ‘ii’ user.cpp:9: error: ‘ofstream’ was not declared in this scope user.cpp:9: error: expected ‘;’ before ‘oo’ user.cpp:10: error: ‘ii’ was not declared in this scope user.cpp:43: error: ‘oo’ was not declared in this scope user.cpp:52: error: ‘oo’ was not declared in this scope