Update best_time_to_buy_and_sell_stock.py

yingl · web-flow · commit 55b3f26075bf · 2017-04-25T18:48:53.000+08:00
diff --git a/best_time_to_buy_and_sell_stock.py b/best_time_to_buy_and_sell_stock.py
@@ -1,4 +1,4 @@
-# -*- coding: utf-8 -*-
+# coding: utf-8
 
 class Solution:
     """
@@ -13,4 +13,6 @@ def maxProfit(self, prices):
             for i in xrange(1, len(prices)):
                 ret = max(ret, prices[i] - buy_price)
                 buy_price = min(prices[i], buy_price) # 更新买入价格
-        return ret
+        return ret
+
+# medium: http://lintcode.com/zh-cn/problem/best-time-to-buy-and-sell-stock/
