Eroare de compilare: user.cpp:2:21: error: fstream.h: No such file or directory user.cpp: In function ‘int main()’: user.cpp:7: error: variable ‘std::ifstream In’ has initializer but incomplete type user.cpp:8: error: variable ‘std::ofstream Out’ has initializer but incomplete type user.cpp:9: error: ‘in’ was not declared in this scope user.cpp:13: error: expected ‘;’ before ‘}’ token user.cpp:21: error: expected ‘;’ before ‘In’ user.cpp:7: warning: unused variable ‘In’