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  1. module Enumerable
  2.   def chunq
  3.     Enumerator.new do |y|
  4.       tmp = self.dup
  5.       while 0 < tmp.count
  6.         k = yield tmp.first
  7.         a = tmp.take_while {|x| k == yield(x)}
  8.         y << [k, a]
  9.         tmp = tmp.drop a.size
  10.       end
  11.     end
  12.   end
  13. end
  14. a = [1,1,2,2,3,3,3,1]
  15. p a.chunk {|x| x}.map &:first
  16. p a.chunq {|x| x}.map &:first
  17.  
Success #stdin #stdout 0s 28688KB
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[1, 2, 3, 1]
[1, 2, 3, 1]
https://ideone.com/Fegs0C
language:
Ruby (ruby 2.5.5)
created:
6 years ago
visibility:
public

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