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- From: jes@downey.dev.macsch.com (John Schiermeier)
- Subject: Re: Great turtle race
- Message-ID: <1992Nov17.205255.26259@draco.macsch.com>
- Sender: usenet@draco.macsch.com (Usenet Poster)
- Organization: The MacNeal-Schwendler Corporation
- References: <1992Nov12.192101.13105@hellgate.utah.edu> <1992Nov16.182241.3270@draco.macsch.com> <1992Nov16.215430.7907@stsci.edu>
- Date: Tue, 17 Nov 92 20:52:55 GMT
- Lines: 64
-
- In article <1992Nov16.215430.7907@stsci.edu> ansok@stsci.edu (Gary Ansok) writes:
- >In article <1992Nov16.182241.3270@draco.macsch.com> jes@downey.dev.macsch.com (John Schiermeier) writes:
- >>In article <1992Nov12.192101.13105@hellgate.utah.edu> tolman%asylum.cs.utah.edu@cs.utah.edu (Kenneth Tolman) writes:
- >>>Quite peculiar! Yet no turtle placed the same in both races. Happily,
- >>>after they computed their overall rank for the day every turtle got
- >>>a medal.. gold, silver or bronze for 1,2 or 3rd.
- >>
- >
- >>The first race: E A B D C F
- >>The second race: A C D B F E
- >>
- >>The medals: gold, A; silver, B C D E; bronze, F.
- >
- >This depends on the interpretation that if there is a tie for one
- >place, then all of those tied win that place and the next place
- >is awarded to the next one down. In other words, the turtles
- >finished 1-2-2-2-2-3.
- >
- >I don't agree with this -- I would consider Frank to have finished
- >6th overall in this ranking and would thus not be awarded a medal
- >(no bronze medal to be awarded when multiple silvers given out).
- >Isn't this how the Olympics do it when there is a dead heat?
- >
-
- I don't agree with this either, but didn't find another acceptable
- solution, and so posted the above. Yes, that's how the Olympics
- does it.
-
- >The only finishes that I would consider to allow every turtle a
- >medal are: 1-2-3-3-3-3, 1-1-3-3-3-3, 1-2-2-2-2-2, and 1-1-1-1-1-1.
- >
- >I come up with 5 possible race outcomes; 7 combinations of which satisfy
- >the restriction that no turtle finish the same in both races. Three of
- >these combinations give each turtle a medal under the "loose" tie policy,
- >but no combination satisfies the tighter tie policy. (Also, no combination
- >satisfies the interpretation with medals for each race.)
- >
- >Race outcomes:
- >
- > A C D B F E
- > A E D B F C
- > D E F A B C
- > E A B D C F
- > E D A F C B
- >
- >Combinations:
- >
- >E A B D C F
- >A C D B F E A gold B/C/D/E silver F bronze?
- >
- >E A B D C F
- >A E D B F C A/E gold B/D silver?/bronze? C/F bronze?
- >
- >D E F A B C
- >E D A F C B D/E gold A/F silver?/bronze? C/B bronze?
- >
- Oops - missed one outcome, and transcribed another incorrectly, leading
- to my finding only one combination with three ranks instead of three.
- That's what I get for doing everything by hand.
-
- Perhaps the person who posed the puzzle would care to offer a solution?
-
- John
-
-