AdventOfCode-2022/day6.cr

require "advent"
INPUT = input(2022, 6).lines[0].chars

def part1(input)
  idx = 0
  input.each_cons(4) do |x|
    return idx + 4 if x.uniq.size == 4
    idx += 1
  end
end

def part2(input)
  offset = 0
  loop do
    chars = input[offset..offset+13]
    return offset + 14 if chars.uniq.size == 14
    offset += 1
  end
end

puts part1(INPUT.clone)
puts part2(INPUT.clone)