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use subsript :D

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This commit is contained in:
Patrick Michl 2021-12-03 10:11:38 +01:00
parent 40682f6cb6
commit 8bfc4fec97
1 changed files with 12 additions and 12 deletions
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24
src/day_3.jl
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@ -18,23 +18,23 @@ end
function p2(input::Vector{String}) function p2(input::Vector{String})
i1 = copy(input) i1 = copy(input)
i2 = copy(input) i2 = copy(input)
ox = "" o₂ = ""
co = "" co₂ = ""
for i in 1:length(input[1]) for i in 1:length(input[1])
oxbits = map(x -> parse(Int, x[i]), i1) o₂bits = map(x -> parse(Int, x[i]), i1)
cobits = map(x -> parse(Int, x[i]), i2) co₂bits = map(x -> parse(Int, x[i]), i2)
oxmc = sum(oxbits) >= length(oxbits) / 2 ? '1' : '0' o₂mc = sum(o₂bits) >= length(o₂bits) / 2 ? '1' : '0'
comc = sum(cobits) >= length(cobits) / 2 ? '0' : '1' co₂mc = sum(co₂bits) >= length(co₂bits) / 2 ? '0' : '1'
filter!(x -> x[i] == oxmc, i1) filter!(x -> x[i] == o₂mc, i1)
filter!(x -> x[i] == comc, i2) filter!(x -> x[i] == co₂mc, i2)
length(i1) == 1 && ox == "" ? (ox = i1[1]) : nothing length(i1) == 1 && o₂ == "" ? (o₂ = i1[1]) : nothing
length(i2) == 1 && co == "" ? (co = i2[1]) : nothing length(i2) == 1 && co₂ == "" ? (co₂ = i2[1]) : nothing
ox != "" && co != "" ? break : continue o₂ != "" && co₂ != "" ? break : continue
end end
parse(Int, ox; base=2) * parse(Int, co; base=2) parse(Int, o₂; base=2) * parse(Int, co₂; base=2)
end end
@aoc(2021, 3) @aoc(2021, 3)