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puts Math.log10(10).floor + 1
puts Math.log10(999).floor + 1
puts Math.log10(1000).floor + 1

Success #stdin #stdout 0.05s 9656KB

stdin

Standard input is empty

stdout

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https://ideone.com/cHPg9K

language:

Ruby (ruby 2.5.5)

created:

visibility:

public

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