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Day 4

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nazrin 2024-12-05 20:55:54 +00:00
parent 341a64b794
commit 8008efa1d1
1 changed files with 18 additions and 0 deletions
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4.jl Normal file
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const matchEitherDir(a) = fn(b) = all(a .== b) || all(reverse(a) .== b)
const d = [ collect(line) for line in readlines("input/4") ]
const size = length(d)
partOne, partTwo = 0, 0
for y in 1:size
for x in 1:size
grid(dirs, range) = ( ( try d[y+i*u][x+i*v] catch end for i in range ) for (u,v) in dirs )
global partOne += count(matchEitherDir(collect("XMAS")), grid([ (0, 1), (1, 0), (1, 1), (-1, 1) ], 0:3))
global partTwo += all(matchEitherDir(collect("MAS")), grid([ (-1, 1), (1, 1) ], -1:1))
end
end
@show partOne, partTwo