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 --- 2015/day-02/day-02.rkt | 26 -------------------------- 1 file changed, 26 deletions(-) delete mode 100644 2015/day-02/day-02.rkt (limited to '2015/day-02/day-02.rkt') diff --git a/2015/day-02/day-02.rkt b/2015/day-02/day-02.rkt deleted file mode 100644 index 579fd00..0000000 --- a/2015/day-02/day-02.rkt +++ /dev/null @@ -1,26 +0,0 @@ -#lang racket -(require "../../jj-aoc.rkt" - threading - racket/struct) - -(struct present (l w h) #:transparent) - -(define presents - (for/list ([size-string (in-lines (open-day 2 2015))]) - (~> size-string (string-split "x") (map string->number _) (apply present _)))) - -;; part 1 -(define (paper-area p) - (define main-area (~> p struct->list (combinations 2) (map (λ~> (apply * 2 _)) _) (apply + _))) - (define slack-area (~> p struct->list (sort <) (take 2) (apply * _))) - (+ main-area slack-area)) - -(for/sum ([p (in-list presents)]) (paper-area p)) - -;; part 2 -(define (ribbon-length p) - (define ribbon-around-box (~> p struct->list (sort <) (take 2) (map (λ~> (* 2)) _) (apply + _))) - (define ribbon-for-bow (~> p struct->list (apply * _))) - (+ ribbon-around-box ribbon-for-bow)) - -(for/sum ([p (in-list presents)]) (ribbon-length p)) -- cgit v1.2.3