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Usenet Newsgroups : rec.puzzles Hall of Fame

The rec.puzzles Hall of Fame is a compilation of over 500 of the most popular puzzles that have been posted and discussed in the rec.puzzles newsgroup. In most cases a detailed solution has been provided.

Many of these puzzles also appear in Braingle's own collection.

Hall of Fame
Categories : probability : killers.and.pacifists.p

You enter a town that has K killers and P pacifists.  When a
pacifist meets a pacifist, nothing happens.  When a pacifist meets a
killer, the pacifist is killed.  When two killers meet, both die.
Assume meetings always occur between exactly two persons and the pairs
involved are completely random.  What are your odds of survival?


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