From ed80d29609acdcbf0aed4b9a6e4390b561e67f9c Mon Sep 17 00:00:00 2001
From: Stefan Harmuth <stefan.harmuth@docomodigital.com>
Date: Sat, 11 Dec 2021 06:49:39 +0100
Subject: [PATCH] day11: testing for set() and len(set()) > 0 is the same

---
 day11.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/day11.py b/day11.py
index de67962..f50541b 100644
--- a/day11.py
+++ b/day11.py
@@ -20,7 +20,7 @@ def flashGrid(grid: Grid) -> int:
             flashers.add(c)
 
     did_flash = set()
-    while len(flashers) > 0:
+    while flashers:
         thisFlash = flashers.pop()
         did_flash.add(thisFlash)
         grid.set(thisFlash, 0)