Contents:

Please make sure you adhere to the policies on academic honesty.

1. (7 points)
   Let MySequence be a sequence of 99 Dalmation puppies, and let Boiler be a Dalmation puppy. Give the value returned or the exception thrown by each of the following statements that make calls to the methods of the MySequence object:
   1. size()
   2. isempty()
   3. rankOf(first())
   4. rankOf(last())
   5. rankOf(atRank(0))
   6. rankOf(atRank(99))
   7. rankOf(atRank(100))
   8. rankOf(atRank(size()))
   9. rankOf(before(last()))
   10. rankOf(after(before(first())))
   11. rankOf(insertFirst(Boiler))
   12. rankOf(insertBefore(first(),Boiler))
   13. remove(first())
   14. remove(insertAtRank(1,Boiler))

   Please Note: There is an error in many printings of the book in Ch. 5.2.3, when desribing the List ADT. That section states that the method insertBefore(p,e) throws an error if p is the first position. There is no reason to throw such an error, as that statement has a natural meaning. In fact, if you look at Code Fragment 5.9, you will see that they have implemented it properly. A similar correction should be made regarding insertAfter(p,e).

2. (5 points)
   Using the List interface methods, give a short fragment of pseudo-code describing a new method makeFirst(p) that moves the element of a list L at position p to be the first element in L while keeping the relative ordering of the remaining elements in L unchanged. Your method should only call O(1) other List methods.

3. (8 points)
   Creativity Exercise C-5.11 of the text.

4. (2 points)
   Creativity Exercise C-5.12 of the text.
   (Hint available through Hint Server on textbook's website).