Update binary_tree_serialization.py

yingl · web-flow · commit 3e139468633c · 2017-04-25T18:45:42.000+08:00
diff --git a/binary_tree_serialization.py b/binary_tree_serialization.py
@@ -1,4 +1,4 @@
-# -*- coding: utf-8 -*-
+# coding: utf-8
 
 class Solution:
 
@@ -60,4 +60,6 @@ def deserialize(self, data):
                         new_level.append(node.right)
                     i += 1
             level = new_level
-        return root
+        return root
+
+# medium: http://lintcode.com/zh-cn/problem/binary-tree-serialization/
