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One-peak sets (Posted on 2018-10-30) Difficulty: 3 of 5
Take a set of n distinct numbers.
How many permutations of this set with exactly one local maximum
are there?

Provide a proof of the formula you've derived.

No Solution Yet Submitted by Ady TZIDON    
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Comments: ( You must be logged in to post comments.)
  Subject Author Date
thanksSteven Lord2018-10-31 00:10:18
re: not sure I understandCharlie2018-10-30 17:47:15
Questionnot sure I understandSteven Lord2018-10-30 09:39:12
Some ThoughtsFirst Thoughts (spoiler?)Steve Herman2018-10-30 09:01:37
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