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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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thanks Comment 4 of 4 |
Thanks for the explanation. I get it now!
  Posted by Steven Lord on 2018-10-31 00:10:18
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