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@porterjamesj porterjamesj/three.jl
Last active Dec 15, 2018

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Advent of Code day 3 (https://adventofcode.com/2018/day/3) solution in Julia (https://julialang.org/)
function count_overclaims(claims)
fabric = zeros(1000, 1000)
for claim in claims
claimed_area = view(
fabric,
claim[:x]+1:claim[:x]+claim[:width],
claim[:y]+1:claim[:y]+claim[:height],
)
claimed_area .+= 1
end
return count(x -> x>1, fabric)
end
function parse_claim(s)
id, s = split(s, '@')
corner, dimensions = split(s, ':')
x, y = map(x->parse(Int,x), split(corner, ','))
width, height = map(x->parse(Int,x), split(dimensions, 'x'))
return (x=x, y=y, width=width, height=height)
end
println(count_overclaims(map(parse_claim, readlines(stdin))))
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