(nil): Akis Karnouskos (akis(@)ceid.upatras.gr)
Ημερομηνία: Παρ 08 Μάι 1998 - 13:17:19 EEST
You want to send a valuable object to a friend. You have a box which is
more than large enough to contain the object. You have several locks
with keys. The box has a locking ring which is more than large enough to
have a lock attached. But your friend does not have the key to any lock
that you have. How do you do it? Note that you cannot send a key in an
unlocked box, since it might be copied.
Quiz of the Day ... Ελληνική Λίστα με σπαζοκεφαλιές ... και άλλα ...
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