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| author | Hunky Jimpjorps <thechairman@thechairman.info> | 2024-02-02 17:05:12 -0500 |
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| committer | Hunky Jimpjorps <thechairman@thechairman.info> | 2024-02-02 17:05:12 -0500 |
| commit | 48e35ad3b0b0c62f936784e4aca70b17c3b0e3f9 (patch) | |
| tree | f59a13e0b5e80ab925220b4488c6e36b1bec660a /aoc2023-racket/day-09/day-09-polynomial.rkt | |
| parent | 87e9ab25ff70e215b537939a4bc23ab101f41dbe (diff) | |
| download | gleam_aoc-48e35ad3b0b0c62f936784e4aca70b17c3b0e3f9.tar.gz gleam_aoc-48e35ad3b0b0c62f936784e4aca70b17c3b0e3f9.zip | |
renaming
Diffstat (limited to 'aoc2023-racket/day-09/day-09-polynomial.rkt')
| -rw-r--r-- | aoc2023-racket/day-09/day-09-polynomial.rkt | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/aoc2023-racket/day-09/day-09-polynomial.rkt b/aoc2023-racket/day-09/day-09-polynomial.rkt new file mode 100644 index 0000000..5bacb1f --- /dev/null +++ b/aoc2023-racket/day-09/day-09-polynomial.rkt @@ -0,0 +1,17 @@ +#lang racket + +(require advent-of-code + threading + simple-polynomial/tools) + +(define histories + (for/list ([raw-history (in-lines (open-aoc-input (find-session) 2023 9 #:cache #true))]) + (~>> raw-history + string-split + (map string->number)))) + +(for/lists (left right #:result (cons (apply + left) (apply + right))) + ([history (in-list histories)]) + (define f (interpolate-at-integer-points history)) + (values (f -1) + (f (length history)))) |