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Arrange with 3-4-5 difference (Posted on 2007-10-16) Difficulty: 3 of 5
Is it possible to place the numbers 0,1,2,3,4,5,6,7,8,9 (not necessarily in this order) in a circle such that the difference between any two neighboring numbers is 3, 4 or 5?

If it is possible, show how; if it is impossible, prove that to be the case.

See The Solution Submitted by K Sengupta    
Rating: 4.0000 (3 votes)

Comments: ( Back to comment list | You must be logged in to post comments.)
hint | Comment 1 of 7
I wrote a small program and I verified it's impossible, but still can't prove it...
  Posted by bubu on 2007-10-16 11:53:49
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