11/28/01 ps 48 17.16 mod n -> mod 2^n
11/28/01 sr 17.6 No Property 17.5
11/29/01 sr 18.5 Definition numbers should start at 18.1
11/27/01 cv 314 21.3 running time of B -> running time of the
algorithm that solves B
12/04/01 rs 452 22.12 Q>0 not enough to determine eligibility;
need to check that edge is full or empty.
ps: Pitchaya Sitthiamorn
sr: Susan Riley
cv: Chris Van Wyk