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add solution for day 4

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Patrick Michl 2022-12-04 18:54:32 +01:00
parent 61b961dc12
commit 9eadc6a3c1
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3 changed files with 1018 additions and 1 deletions
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1000
data/day_4.txt Normal file
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1
src/day_3.jl
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@ -12,4 +12,3 @@ function p2(input::Vector{String})
end
@aoc(2022, 3)

18
src/day_4.jl Normal file
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@ -0,0 +1,18 @@
include(joinpath(readchomp(`git rev-parse --show-toplevel`), "aoc.jl"))
import .Aoc: @aoc
function assignment_pairs(λ, line)
a, b = split(line, ',')
s1,e1,s2,e2 = parse.(Int,[split(a, '-'); split(b, '-')])
λ(s1:e1, s2:e2)
end
function p1(input::Vector{String})
count(map((x) -> assignment_pairs((a, b) -> (a ⊆ b || b ⊆ a), x), input))
end
function p2(input::Vector{String})
count(map((x) -> assignment_pairs((a, b) -> length(intersect(a, b)) > 0, x), input))
end
@aoc(2022, 4)