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/ pairs.rb
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August 29, 2015 13:56
— forked from lexun/pairs.rb
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| require 'ap' | |
| $pair_size = (ENV['PAIR_SIZE'] || 2).to_i | |
| def pairs(participants) | |
| pairs = participants.shuffle.each_slice($pair_size).to_a | |
| if pairs.last.size == 1 | |
| loner = pairs.pop | |
| pairs.last << loner.first |