18 lines
540 B
Julia
18 lines
540 B
Julia
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const matchEitherDir(a) = fn(b) = all(a .== b) || all(reverse(a) .== b)
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const d = [ collect(line) for line in readlines("input/4") ]
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const size = length(d)
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partOne, partTwo = 0, 0
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for y in 1:size
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for x in 1:size
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grid(dirs, range) = ( ( try d[y+i*u][x+i*v] catch end for i in range ) for (u,v) in dirs )
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global partOne += count(matchEitherDir(collect("XMAS")), grid([ (0, 1), (1, 0), (1, 1), (-1, 1) ], 0:3))
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global partTwo += all(matchEitherDir(collect("MAS")), grid([ (-1, 1), (1, 1) ], -1:1))
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end
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end
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@show partOne, partTwo
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