Update find-if-path-exists-in-graph.py

kamyu104 · web-flow · commit 4cf50a359955 · 2021-08-17T00:04:50.000+08:00
diff --git a/Python/find-if-path-exists-in-graph.py b/Python/find-if-path-exists-in-graph.py
@@ -15,7 +15,7 @@ def validPath(self, n, edges, start, end):
         :rtype: bool
         """
         def bi_bfs(adj, start, target):
-            left, right = set([start]), set([target])
+            left, right = {start}, {target}
             lookup = set()
             steps = 0
             while left:
