2022/06/script.rb

#!/usr/bin/env ruby

require_relative '../common'

class Day06 < Day
  def part1
    find_marker 4
  end

  def part2
    find_marker 14
  end

  private

  def find_marker(size)
    size + stdin.join.chars.each_cons(size).find_index { |chars| chars == chars.uniq }
  end
end

Day06.run