Update coins_in_a_line.py

yingl · web-flow · commit 508db0035ab7 · 2017-04-25T18:44:03.000+08:00
diff --git a/coins_in_a_line.py b/coins_in_a_line.py
@@ -1,4 +1,4 @@
-# -*- coding: utf-8 -*-
+# coding: utf-8
 
 class Solution:
     def __init__(self):
@@ -19,4 +19,6 @@ def firstWillWin(self, n):
             第n个一定被第一个玩家拿走。
             '''
             self.cache[n] = self.firstWillWin(n - 3)
-        return self.cache[n]
+        return self.cache[n]
+
+# medium: http://lintcode.com/zh-cn/problem/coins-in-a-line/
