From 499f45e61349a7d2f6ddbd0c9b69ca79cd530d1c Mon Sep 17 00:00:00 2001
From: Tomasz Kramkowski <tk@the-tk.com>
Date: Sat, 4 Dec 2021 13:47:01 +0000
Subject: day 4: fix position calculation blunder

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

diff --git a/4.py b/4.py
index eeb929e..0d44156 100644
--- a/4.py
+++ b/4.py
@@ -26,8 +26,8 @@ class Board:
     def call(self, num: int) -> None:
         if num not in self.nums: return
         pos: int = self.cells.index(num)
-        self.col_hits[pos // self.width] += 1
-        self.row_hits[pos // self.height] += 1
+        self.col_hits[pos % self.width] += 1
+        self.row_hits[pos // self.width] += 1
         self.unmarked_sum -= num
         self.has_bingo = (
             any(hits == self.height for hits in self.col_hits) or
-- 
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