Update best_time_to_buy_and_sell_stock_ii.py

yingl · web-flow · commit d7eca5a2d73a · 2017-04-25T18:48:19.000+08:00
diff --git a/best_time_to_buy_and_sell_stock_ii.py b/best_time_to_buy_and_sell_stock_ii.py
@@ -1,4 +1,4 @@
-# -*- coding: utf-8 -*-
+# coding: utf-8
 
 class Solution:
     """
@@ -21,4 +21,6 @@ def maxProfit(self, prices):
                     buy_price = -1
         if buy_price != -1:
             ret += prices[-1] - buy_price
-        return ret
+        return ret
+
+# medium: http://lintcode.com/zh-cn/problem/best-time-to-buy-and-sell-stock-ii/
