From 4204d91abdeb375b6f05a507a2d52d6175a530dc Mon Sep 17 00:00:00 2001
From: Alex Karle <alex@alexkarle.com>
Date: Sun, 5 Dec 2021 10:37:46 -0500
Subject: [PATCH] day4: Fix bad refactor of index()

Whoops, forgot to return!
---
 4/common.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/4/common.py b/4/common.py
index 4dbdbe4..d9167b9 100644
--- a/4/common.py
+++ b/4/common.py
@@ -33,3 +33,5 @@ def index(boards):
                     index[x] = []
                 index[x].append((i, r, c))
         i+=1
+
+    return index
--
libgit2 1.8.1