SAFE GENERALS!

You have 7 generals and a safe with many locks. You assign the
generals keys in such a way that EVERY set of four generals has enough
keys b/w them to open ALL the locks; however, NO set of three generals is
able to open ALL the locks. How many locks do you need, and list how many
keys the first general gets, the second, .... Is there more than one way
that works?

Passed on by Travis (ferris99@bellsouth.net)