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| author | HJ <thechairman@thechairman.info> | 2023-12-09 10:05:41 -0500 |
|---|---|---|
| committer | HJ <thechairman@thechairman.info> | 2023-12-09 10:05:41 -0500 |
| commit | 7f3c46c9e1aca82cc0a4355e906eac140df26a61 (patch) | |
| tree | 26eeccff3ec18d79c91ba1fa6245526d77e37ef9 /aoc2023-other/day-09/day-09-polynomial.rkt | |
| parent | 7c69adbce6f3ab1075039e23c9c04ebd61ec0761 (diff) | |
| download | gleam_aoc-7f3c46c9e1aca82cc0a4355e906eac140df26a61.tar.gz gleam_aoc-7f3c46c9e1aca82cc0a4355e906eac140df26a61.zip | |
day 9 alternate racket solution
Diffstat (limited to 'aoc2023-other/day-09/day-09-polynomial.rkt')
| -rw-r--r-- | aoc2023-other/day-09/day-09-polynomial.rkt | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/aoc2023-other/day-09/day-09-polynomial.rkt b/aoc2023-other/day-09/day-09-polynomial.rkt new file mode 100644 index 0000000..31c0d3d --- /dev/null +++ b/aoc2023-other/day-09/day-09-polynomial.rkt @@ -0,0 +1,13 @@ +#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)))) |