1. What is the performance of an *sorted* ArrayList implementation for
     the set() and get() for a Map ADT?

  2. What is the performance of an *sorted* LinkedList implementation
     for the set() and get() for a Map ADT?

  3. What is the performance of a *BST* implementation for the set() and
     get() for a Map ADT?

  4. How do you remove an item from a map?