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  1. p h = "142324312431".split(//)
  2.  
  3. h = h.each_slice(4).map(&:sort).flatten
  4.  
  5. p h
  6.  
Success #stdin #stdout 0.01s 7420KB
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stdin
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Standard input is empty
stdout
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["1", "4", "2", "3", "2", "4", "3", "1", "2", "4", "3", "1"]
["1", "2", "3", "4", "1", "2", "3", "4", "1", "2", "3", "4"]
https://ideone.com/B4d47c
language:
Ruby (ruby 2.5.5)
created:
10 years ago
visibility:
public

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