I need help.

I have to write a pseudocode of this one problems (with visual basic):

- The Sleeping-Barber Problem. A barbershop consists of a waiting room
with n chairs and the barber room containing the barber chair. If there
are no customers to be served, the barber goes to sleep. If a customer
enters the barbershop and all chairs are occupied, then the customer
leaves the shop. If the barber...