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9 lines
167 B
9 lines
167 B
6 years ago
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require "set"
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seen = Set.new
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ARGF.read.lines.map(&:to_i).cycle.each.with_object([0]) do |i,n|
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n[0] += i
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p n[0] and exit if seen.include?(n[0])
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seen << n[0]
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end
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