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changeset 28:72bbee9f4d9e

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day 15 - add explanation
author Lewin Bormann <lbo@spheniscida.de>
date Sat, 17 Dec 2022 13:49:24 +0100
parents 457820e3609e
children 3c7df4d9b8cb
files 15/15.jl
diffstat 1 files changed, 2 insertions(+), 1 deletions(-) [+]
line wrap: on
line diff
--- a/15/15.jl	Sat Dec 17 13:47:46 2022 +0100
+++ b/15/15.jl	Sat Dec 17 13:49:24 2022 +0100
@@ -55,7 +55,8 @@
 end
 
 function find_distress_beacon(bs::Vector{Beacon}, minc=0, maxc=20)::Set{Point}
-    # Check borders of sensor's coverage area
+    # Check borders of sensor's coverage area - as there is only one point to check,
+    # it must be directly outside a sensor's coverage area.
     v = Set{Point}();
     isvalid(p) = p.x >= minc && p.x <= maxc && p.y >= minc && p.y <= maxc;
     for b in bs