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require 'digest/md5'
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class Keys
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attr_reader :seed, :hash
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def initialize(seed)
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@seed = seed
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@hash = Hash.new {|h,k|
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hash = Digest::MD5.hexdigest("#{seed}#{k}")
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2016.times do
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hash = Digest::MD5.hexdigest(hash)
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end
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h[k] = hash
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}
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end
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def each
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return enum_for(__method__) unless block_given?
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(0..Float::INFINITY).each do |index|
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next unless /(.)\1\1/ =~ hash[index]
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needle = $1 * 5
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stream = (1..1000).map {|i| hash[index + i] }
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next unless stream.any? {|h| h.include?(needle) }
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yield [index, hash[index]]
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end
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end
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end
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keys = Keys.new('qzyelonm')
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p keys.each.take(64).last
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