A5 Notes

1) append (4)
   Only part (a) marked: 2 point for correct structure, 2 points for correct
   values at each node
2) palindrome tree (10)
   5 points for correct tree structure, 5 points for the correct
   substitutions.
        - For the part 2: St = Structure (5) and Su = Substitutions (5)
3) palindrome cut (4)
   4/4 if the cut is exactly correct (or is consistent with their search
   tree, even if their search tree is wrong).
   2/4 if not quite in the right place, but is in the right subtree.
   0 if no cut, or cannot follow where the cut is
4) count (2)
   Not marked
5) swap - parameter passing (14)
   -1 per incorrect
   a) by value                     2
   b) by value-result              4
   c) by reference                 4
   d) by name                      4
6) scoping rules (14)
   a) static                       10 (-1 per incorrect)
   b) dynamic                      4 (all or nothing)
7) 2 marks
   Not marked