(a) the normal "directory" of what code each file you're giving us
contains
(b) a (very brief) description of what implementation you chose (a
small sketch of your ADT with a few sentences would be the clearest
thing)
(c) how your implementation differs from your original proposal
(did you make any improvements, did you have to cut any corners)? If
your implementation differs from the original in such a way that the
asymptotic space or running times differ from those reported in your
proposal, please specify them here.
(d) any known problems in your implementation (better for you to
admit to them than for us to find them)
(e) anything else about your program that you think is interesting
or worth mentioning.