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class Fixnum
	def <=>(i)
		i.to_s<=>self.to_s
	end
end
 
p [50, 2, 1, 9].sort.join

Success #stdin #stdout 0.06s 9760KB

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Standard input is empty

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"95021"

https://ideone.com/tJ4HfG

language:

Ruby (ruby 2.5.5)

created:

visibility:

public

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