17 lines
347 B
Ruby
17 lines
347 B
Ruby
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#!/bin/env ruby
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groups = Hash.new
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text = File.read('./input').strip.split("\n\n")
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people = text.map { |t| t.count("\n") + 1 }
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text.map!.with_index do |t, i|
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t.delete!("\n")
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t.each_char { |c| t.delete!(c) if t.count(c) != people[i] }
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t.split('').uniq.reduce(:+)
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end
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text.compact!
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size = text.map { |t| t.length }.reduce(:+)
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p size
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