Patrick Auernig
9c592395bf
Can't be bothered to add part 2, because that would require recompiling nushell to get dataframes back.
43 lines
930 B
Plaintext
43 lines
930 B
Plaintext
def is-downcase? [] {
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find --regex '[A-Z]' | is-empty
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}
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def item-priority [item: string] {
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let val = ($item | into int -r 36) - 9
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if ($item | is-downcase?) {
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$val
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} else {
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$val + 26
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}
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}
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def main [path = "../inputs/puzzle.txt"] {
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open $path
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| lines
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| each {
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let chars = split chars
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let len = ($chars | length)
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let mid = ($len / 2)
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let df = ($chars | into df)
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let left = ($df | slice 0 $mid)
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let right = ($df | slice $mid $len)
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let df = ($left | rename "0" "left" | with-column $right --name "right")
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let mask = ($df.left | is-in $df.right)
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$left
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| rename "0" "left"
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| with-column $right --name "right"
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| get "left"
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| filter-with $mask
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| unique
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| into nu
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| get "left"
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| each { |i| item-priority $i }
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| math sum
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}
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| math sum
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}
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