From 80c89aee26bb4b12ed6c82643ee482455df94e59 Mon Sep 17 00:00:00 2001
From: Brian Buller <brian@bullercodeworks.com>
Date: Thu, 9 Dec 2021 08:06:18 -0600
Subject: [PATCH] Fix 2020 Day 3

Fixed a bug in the CoordByteMap during 2021 day 9
---
 2020/day03/main.go | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/2020/day03/main.go b/2020/day03/main.go
index ce5c10a..030122f 100644
--- a/2020/day03/main.go
+++ b/2020/day03/main.go
@@ -28,8 +28,8 @@ func countTrees(field h.CoordByteMap, x, y int) int {
 	trees := 0
 	pos := h.Coordinate{X: x, Y: y}
 	for pos.Y < field.Height {
-		if pos.X > field.Width {
-			pos.X = pos.X - field.Width - 1
+		if pos.X >= field.Width {
+			pos.X = pos.X - field.Width
 		}
 		if field.Get(pos) == '#' {
 			trees++