Update 4sum.py

yingl · web-flow · commit 2cbbe5ad4a70 · 2017-04-25T18:52:47.000+08:00
diff --git a/4sum.py b/4sum.py
@@ -1,4 +1,4 @@
-# -*- coding: utf-8 -*-
+# coding: utf-8
 
 class Solution:
     """
@@ -27,4 +27,6 @@ def kSum(self, start, data, _sum, k):
             j = start + 1 # &#21435;&#37325;&#19981;&#35201;&#24536;&#35760;
             while (j < len(self.numbers)) and (self.numbers[j] == self.numbers[start]):
                 j += 1
-            self.kSum(j, data, _sum, k)
+            self.kSum(j, data, _sum, k)
+
+# medium: http://lintcode.com/zh-cn/problem/4sum/
