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Day 5

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nazrin 2024-12-05 22:16:41 +00:00
parent 8008efa1d1
commit 1927f2986a
1 changed files with 20 additions and 0 deletions
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5.jl Normal file
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txt = strip(read("input/5", String))
rules, updates = map(x -> map(x -> map(x -> parse(Int, x), split(x, Regex("[,|]"))), split(x, "\n")), split(txt, "\n\n"))
partOne, partTwo = 0, 0
isOrdered(update) = all(p -> all(after -> [p[2],after] in values(rules), update[p[1]+1:end]), enumerate(update))
middle(v) = v[length(v)÷2+1]
for update in updates
if isOrdered(update)
global partOne += middle(update)
else
sort!(update, lt = (a, b) -> isOrdered([a, b]))
global partTwo += middle(update)
end
end
@show partOne, partTwo