From b9fad24df2313a016f41de38692129468d34dc41 Mon Sep 17 00:00:00 2001
From: Joscha <joscha@plugh.de>
Date: Wed, 14 Dec 2022 21:24:53 +0100
Subject: [PATCH] [rs] Add comment on simpler approach

---
 rs/src/y2022/d12.rs | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/rs/src/y2022/d12.rs b/rs/src/y2022/d12.rs
index a8a7385..66bcae7 100644
--- a/rs/src/y2022/d12.rs
+++ b/rs/src/y2022/d12.rs
@@ -1,5 +1,9 @@
 use std::collections::BinaryHeap;
 
+// This could've been implemented a lot simpler by
+// 1. Using a HashMap<(i32, i32), usize> as a grid
+// 2. Using a simple (round-based?) BFS instead of a Dijkstra
+
 #[derive(Debug)]
 struct Grid<T> {
     width: usize,