From 831997571a05919f469fec7c3f10a53a45c58e3f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Gustav=20S=C3=B6rn=C3=A4s?= <gusso230@student.liu.se>
Date: Wed, 18 Dec 2019 23:06:03 +0100
Subject: Add thoughts for d18

---
 19/py/d18.py | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

(limited to '19/py')

diff --git a/19/py/d18.py b/19/py/d18.py
index 41ade0a..1b70c86 100644
--- a/19/py/d18.py
+++ b/19/py/d18.py
@@ -235,9 +235,9 @@ while True:
 
     neighbours = graph[last]
     for n in neighbours:
-        #TODO recognize cycles
-        #if n[0] in visited:
-        #    continue
+        #TODO check if current state has been reached before and skip if it has
+
+        # a state is (not really) a set of keys collected (:frozenset) and the current square
         if n[0].isupper() and n[0] not in unlocked:
             continue
         visited = visited.copy()
-- 
cgit v1.2.1