42 Exam 05 -

Master the mutex. Befriend the semaphore. Practice the producer-consumer until you can write it in your sleep. And remember: on exam day, stay calm, read every error message, and trust your preparation.

is the most common way to efficiently store and retrieve spells by their name. Common Variations

You will have a base class (usually AForm ) and three derived classes ( ShrubberyForm , RobotomyForm , PresidentialForm ). The tricky part: The execute() method behaves completely differently for each.