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| author | J.J <thechairman@thechairman.info> | 2024-05-30 21:49:58 -0400 |
|---|---|---|
| committer | J.J <thechairman@thechairman.info> | 2024-05-30 21:49:58 -0400 |
| commit | 231c2b688d1e6cf0846d46e883da30e042a9c6cf (patch) | |
| tree | 98a6d3a461fe190b38b2cf33a708a1d01703fa70 /aoc2023-racket/day-09/day-09-polynomial.rkt | |
| parent | fe088aa5778dcdbaab4dd8d4a7395a91c444b45c (diff) | |
| parent | a2c2b728ec6051323ed937f54816089cd2ae9d20 (diff) | |
| download | gleam_aoc-231c2b688d1e6cf0846d46e883da30e042a9c6cf.tar.gz gleam_aoc-231c2b688d1e6cf0846d46e883da30e042a9c6cf.zip | |
Merge branch 'main' of https://github.com/hunkyjimpjorps/AdventOfCode
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)))) |