aoc2022/aoc.bqn

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BQN
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# a‿b Sub x: the b-length subarray starting at a
Sub {ab𝕊𝕩:ba𝕩}
# e Split xs: split xs on occurrences of e (default 0)
Split {Sub𝕩¨ ((1+») ¨ -») /(𝕨0)=𝕩}
Day1 {
sums +´¨ Split •BQN0¨ •FLines 𝕩
sums, +´3sums
}
•Show Day1 •args