From 8ab65dc2da1742eb86ec636c50c7018385b68167 Mon Sep 17 00:00:00 2001 From: "J.J" Date: Thu, 30 Nov 2023 17:10:00 -0500 Subject: prep for 2023, renaming for consistency --- aoc2021/day-01/day-01.rkt | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) create mode 100644 aoc2021/day-01/day-01.rkt (limited to 'aoc2021/day-01/day-01.rkt') diff --git a/aoc2021/day-01/day-01.rkt b/aoc2021/day-01/day-01.rkt new file mode 100644 index 0000000..48ef158 --- /dev/null +++ b/aoc2021/day-01/day-01.rkt @@ -0,0 +1,20 @@ +#lang racket +(require advent-of-code + threading) + +;; part 1 +(define sensor-data + (~> (open-aoc-input (find-session) 2021 1 #:cache (string->path "./cache")) + (port->list read _))) + +(define (count-increases data offset) + (for/sum ([x (in-list data)] + [y (in-list (drop data offset))] + #:when (< x y)) + 1)) + +(~a "Part 1: " (count-increases sensor-data 1)) + +;; part 2 + +(~a "Part 2: " (count-increases sensor-data 3)) \ No newline at end of file -- cgit v1.2.3