Eroare de compilare: user.cpp:1:21: error: iostream.h: No such file or directory user.cpp: In function ‘int main()’: user.cpp:8: error: ‘cin’ was not declared in this scope user.cpp:21: error: ‘cout’ was not declared in this scope user.cpp:23: error: ‘cout’ was not declared in this scope user.cpp:25: error: ‘cout’ was not declared in this scope user.cpp:7: warning: unused variable ‘s’