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The Party Shakers (Posted on 2003-05-22) Difficulty: 3 of 5
As the people arrived at the party, they had to greet everyone they knew in the hall with a handshake.

Show that at every moment, there were 2 people at the party who had shaken hands the same number of times.

See The Solution Submitted by Fernando    
Rating: 2.8333 (6 votes)

Comments: ( You must be logged in to post comments.)
  Subject Author Date
SolutionSolutionBryan2003-05-22 04:43:20
SolutionSolutionTrevor Leitch2003-05-22 02:48:20
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