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Topic: River Crossing (IV) (Read 507 times) |
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ThudnBlunder
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River Crossing (IV)
« on: Jun 1st, 2003, 4:46am » |
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Same scenario as River Crossing III, except now there is an island in the middle of the river.
How many crossings do you need to get FOUR couples across to the other side?
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THE MEEK SHALL INHERIT THE EARTH.....................................................................er, if that's all right with the rest of you.
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redPEPPER
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Re: River Crossing (IV)
« Reply #1 on: Jun 2nd, 2003, 4:47am » |
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What is a crossing? Is it from either side to the island or vice-versa? Or is it from any place to any other place? In other words, can you go from one side to the other side without stopping at the island, and count it as only one crossing?
I assumed the latter. I got 19. I think it might be optimal although I didn't look into it thoroughfully.
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Noke Lieu
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Re: River Crossing (IV)
« Reply #2 on: Mar 10th, 2004, 8:20pm » |
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Agree with the 19, but thats not using the island.
Maybe its there as a red herring.
Or, as you point out, maybe going to the island is a half-trip.
doesn't really add much, does it? Sorry.
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| « Last Edit: Mar 10th, 2004, 8:25pm by Noke Lieu » |
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