From 07d9b05904eeae5f2eeec70b1ed0a20103213fed Mon Sep 17 00:00:00 2001
From: Matej Focko <me@mfocko.xyz>
Date: Sun, 17 Dec 2023 18:26:26 +0100
Subject: [PATCH] =?UTF-8?q?day(17):=20use=20=E2=80=B9From=E2=80=BA=20on=20?=
 =?UTF-8?q?=E2=80=B9MinHeap=E2=80=BA?=
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Signed-off-by: Matej Focko <me@mfocko.xyz>
---
 src/bin/day17.rs | 21 ++++++++-------------
 1 file changed, 8 insertions(+), 13 deletions(-)

diff --git a/src/bin/day17.rs b/src/bin/day17.rs
index 37df9e5..0adf44b 100644
--- a/src/bin/day17.rs
+++ b/src/bin/day17.rs
@@ -49,19 +49,14 @@ impl Day17 {
         let (width, height) = (self.map[0].len(), self.map.len());
         let goal = Vector2D::new(width as isize - 1, height as isize - 1);
 
-        let mut queue: MinHeap<State> = MinHeap::new();
-        queue.push(State {
-            heat_loss: 0,
-            distance: 0,
-            position: Vector2D::new(0, 0),
-            direction: Vector2D::new(1, 0),
-        });
-        queue.push(State {
-            heat_loss: 0,
-            distance: 0,
-            position: Vector2D::new(0, 0),
-            direction: Vector2D::new(0, 1),
-        });
+        let mut queue: MinHeap<State> = MinHeap::from(
+            [Vector2D::new(1, 0), Vector2D::new(0, 1)].map(|direction| State {
+                heat_loss: 0,
+                distance: 0,
+                position: Vector2D::new(0, 0),
+                direction,
+            }),
+        );
 
         let mut seen: HashSet<(Vector2D<isize>, Vector2D<isize>)> = HashSet::new();
         while let Some(s) = queue.pop() {