63 lines
1.2 KiB
Julia
63 lines
1.2 KiB
Julia
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using Pkg
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Pkg.add("Match")
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using Match
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include("utils.jl")
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function corrupt(line)
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first, rest... = line
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check = [first]
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for char in rest
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if char in "<{[("
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push!(check, char)
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else
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match, score = @match char begin
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'>' => ('<', 25137)
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'}' => ('{', 1197)
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']' => ('[', 57)
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')' => ('(', 3)
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end
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if last(check) == match
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pop!(check)
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else
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return score
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end
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end
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end
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0
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end
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function solution10_1()
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sum(map(corrupt, non_empty_lines("10.data")))
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end
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function fix(line)
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first, rest... = line
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check = [first]
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for char in rest
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if char in "<{[("
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push!(check, char)
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else
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pop!(check)
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end
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end
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value = 0
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for char in reverse(check)
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value *= 5
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value += @match char begin
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'<' => 4
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'{' => 3
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'[' => 2
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'(' => 1
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end
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end
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value
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end
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function solution10_2()
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values = sort(map(fix, filter(line->corrupt(line)==0, collect(non_empty_lines("10.data")))))
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values[div(length(values), 2)+1]
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end
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solution10_2()
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