24 lines
586 B
Racket
24 lines
586 B
Racket
#lang curly-fn racket
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(require "scripts/aoc.rkt")
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;; solution for day 6
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(define ((part marker-len) input)
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(for*/first ([i (in-range marker-len (string-length input))]
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[nxt (in-value (substring input (- i marker-len) i))]
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#:when (= marker-len (set-count (list->set (string->list nxt)))))
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i))
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(define part1 (part 4))
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(define part2 (part 14))
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(define (parse fname)
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(string-trim (file->string fname)))
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(module+ main
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(define input (parse "inputs/6"))
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(answer 6 1 (time (part1 input)))
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(answer 6 2 (time (part2 input)))
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(displayln "meow"))
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