From: Ben Harris <bjh21@bjh21.me.uk>
Date: Sat, 25 May 2024 23:12:29 +0000 (+0100)
Subject: 18a: comment correction
X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~bjharris/git?a=commitdiff_plain;h=1576febc7b020326488c75e66fb5ee43d2be9081;p=aoc-2022.git

18a: comment correction
---

diff --git a/18/18a.bqn b/18/18a.bqn
index 0d0e06f..f467a13 100644
--- a/18/18a.bqn
+++ b/18/18a.bqn
@@ -9,13 +9,13 @@ Prep←{
   cubes←{
     •ParseFloat¨(','=𝕩)Split 𝕩
   }¨𝕩
+  # We assume that all co-ordinates are non-negitive.
   # "2" here allows a margin for shifting into
   droplet←(2+⌈˝>cubes)⥊0
   droplet↩1¨⌾(cubes⊸⊑)droplet
 }
 
 Main←{ 𝕊 droplet:
-  # We assume that all co-ordinates are strictly positive.
   NSurfacesInDir←{ +´⥊𝕩≠»𝕩 }
   +´{NSurfacesInDir ⍉⍟𝕩 droplet}¨↕=droplet
 }