From 8777ff071f7bb37631baa7b6717ad29961e50911 Mon Sep 17 00:00:00 2001
From: "H.J" <thechairman@thechairman.info>
Date: Wed, 9 Oct 2024 11:36:55 -0400
Subject: sorting by language

---
 aoc2020/day-01/day-01.rkt | 20 --------------------
 1 file changed, 20 deletions(-)
 delete mode 100644 aoc2020/day-01/day-01.rkt

(limited to 'aoc2020/day-01')

diff --git a/aoc2020/day-01/day-01.rkt b/aoc2020/day-01/day-01.rkt
deleted file mode 100644
index e31c45c..0000000
--- a/aoc2020/day-01/day-01.rkt
+++ /dev/null
@@ -1,20 +0,0 @@
-#lang racket
-(require "../../jj-aoc.rkt"
-         threading)
-
-(define entries (~>> (open-day 01 2020) (port->list read) list->set))
-
-;; part 1
-(define (look-for-complement xs)
-  (define x (set-first xs))
-  (cond
-    [(set-member? xs (- 2020 x)) (* x (- 2020 x))]
-    [else (look-for-complement (set-rest xs))]))
-
-(time (look-for-complement entries))
-
-;; part 2
-(time (for*/first ([x (in-set entries)]
-                   [y (in-set (set-subtract entries (set x)))]
-                   #:when (set-member? (set-subtract entries (set x y)) (- 2020 x y)))
-        (* x y (- 2020 x y))))
-- 
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