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- input = readlines(joinpath(splitdir(@__FILE__)[1], "input"))
- ids = input .|> x -> foldl(replace, ["F"=>"0", "B"=>"1", "L"=>"0", "R"=>"1"], init=x) |> x-> parse(Int, x, base=2)
- function max_id()
- maximum(ids)
- end
- function what_seat()
- setdiff(minimum(ids):maximum(ids), ids)[1]
- end
- println("max id: $(@btime max_id())")
- println("what seat: $(@btime what_seat())")
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