From 527bc4762f9c66c9244f0ac1fbee6357478ac9ef Mon Sep 17 00:00:00 2001 From: HJ Date: Thu, 9 Dec 2021 18:05:04 -0500 Subject: putting all my solutions together in 1 repository --- 2021/day-01/day-01.rkt | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) create mode 100644 2021/day-01/day-01.rkt (limited to '2021/day-01/day-01.rkt') diff --git a/2021/day-01/day-01.rkt b/2021/day-01/day-01.rkt new file mode 100644 index 0000000..48ef158 --- /dev/null +++ b/2021/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