Update clone_graph.py

yingl · web-flow · commit f463594d8838 · 2017-04-25T18:44:36.000+08:00
diff --git a/clone_graph.py b/clone_graph.py
@@ -1,4 +1,4 @@
-# -*- coding: utf-8 -*-
+# coding: utf-8
 
 class Solution:
     # @param node, a undirected graph node
@@ -16,4 +16,6 @@ def cloneGraph(self, node):
         self.dict[node] = ret
         for neighbor in node.neighbors:
             ret.neighbors.append(self.cloneGraph(neighbor))
-        return ret
+        return ret
+
+# medium: http://lintcode.com/zh-cn/problem/clone-graph/
