One possible form of "help:" Review your class notes and text.

++ for labeling, but help on a final exam amounts to anti-help... or implies that your instructor has set a question on the final that's not reasonably answerable with the instruction provided. As a general rule -- subject, of course, to exceptions -- one can hope that the former is the case.

So the second "help" I'll offer is limited to this: Work it out as pseudo-code first, at which point writing the answer may well be almost trivial.