das@ucla-cs.UUCP (01/23/85)
Wrong, wrong, wrong! You never said the glass was a perfect cylinder,
and your solution won't work for a quite typical glass which is wider
at the rim than at the base (picture the extreme case where the glass
is a cone with the pointy end as its base). I didn't send in an answer
because I didn't see one, given the information you presented (so if no
one else raised this objection, I'll take my 3 points, please :-) ).
Please be more careful in your problem statements.
-- David Smallberg, das@ucla-cs.ARPA, {ihnp4,ucbvax}!ucla-cs!das