Update copy_list_with_random_pointer.py

yingl · web-flow · commit 89fa4e678bb3 · 2017-04-25T18:36:43.000+08:00
diff --git a/copy_list_with_random_pointer.py b/copy_list_with_random_pointer.py
@@ -1,4 +1,4 @@
-# -*- coding: utf-8 -*-
+# coding: utf-8
 
 class Solution:
     # @param head: A RandomListNode
@@ -38,4 +38,6 @@ def copyRandomList(self, head):
             new_tail = node
             new_tail.next = None
             node = prev.next
-        return new_head
+        return new_head
+
+# medium: http://lintcode.com/zh-cn/problem/copy-list-with-random-pointer/
