From 5d42709ea4083ae330ce15bd63d933000711094a Mon Sep 17 00:00:00 2001
From: Ryan Reed <git@ryanreed.net>
Date: Thu, 9 Dec 2021 19:13:21 -0500
Subject: [PATCH] Using coords instead of value in lowest point determination

---
 puzzles/day09.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/puzzles/day09.py b/puzzles/day09.py
index 9e33588..c10ba36 100644
--- a/puzzles/day09.py
+++ b/puzzles/day09.py
@@ -31,13 +31,13 @@ class Heightmap:
                 elif y != max_y and self.heightmap[y+1][x] <= value:
                     continue
 
-                self.low_point_values.append(value)
+                self.low_point_values.append((x,y))
 
     def calculate_risk_score(self):
         if self.low_point_values is None:
             self.find_low_points()
 
-        return sum(value+1 for value in self.low_point_values)
+        return sum(self.heightmap[coords[1]][coords[0]]+1 for coords in self.low_point_values)
 
 
 def part1(inputs:   List[int]) -> int: