Sleep Sortみたいなの

sleepsort.rb

# 元ネタ: http://dis.4chan.org/read/prog/1295544154
# Sleep Sortみたいなものを時間待ちも無ければプロセス生成も無い方法で
class A
  def initialize(a)
    @a = a
    @b = a
  end
  def next
    @a = @a - 1
    SleepSort.add(@b) if @a == 0
  end
end
module SleepSort
  @list = []
  def SleepSort.add(a)
    @list << a
  end
  def SleepSort.sort(arr)
    hoge = []
    arr.each {|a|
      hoge << A.new(a)
    }
    while true
      hoge.each {|a|
        a.next
      }
      break if arr.length == @list.length
    end
    list = @list
    @list = []
    return list
  end
end

p SleepSort.sort([23,1,53,3,1,3,6,13,3,6,1,3,7,1,3,6,1,3,7,133,63,137])