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Gossip (Posted on 2012-07-26) Difficulty: 3 of 5
n people know each a different piece of gossip.

They can phone each other and exchange all they know so that after the call the parties know anything that either of them knew before the call.

What is the smallest number of calls needed so that everyone knows everything and how is this number achieved?

No Solution Yet Submitted by Ady TZIDON    
Rating: 4.5000 (2 votes)

Comments: ( Back to comment list | You must be logged in to post comments.)
re(2): Solution | Comment 11 of 12 |
(In reply to re: Solution by Dej Mar)

The 5 person example is given in the paragraph just before the last one.
  Posted by Hugo on 2012-07-27 18:39:10

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