二维码（Two-dimensional code）是用某种特定的几何图形按一定规律在平面（二维方向）分布的黑白相间的图形记录数据符号信息的方式。现实生活中，二维码普遍存在我们的周围，例如：产品防伪/溯源、广告推送、网站链接、数据下载、商品交易、定位/导航、电子凭证、车辆管理、信息传递、名片交流、wifi共享等。
在代码编制上巧妙地利用构成计算机内部逻辑基础的“0”、“1”比特流的概念，使...
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其他好文 时间：
2014-07-08 20:07:51
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260
def Merge(head1, head2):
if head1 == None: return head2
if head2 == None: return head1
psuhead = ListNode(-1)
tail = psuhead
while head1 and head2:
if head1.val < head2.val:
cur = head1
...
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其他好文 时间：
2014-07-08 18:46:04
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227
Designing a Class Interface
设计类接口
The Objective-C syntax for creating a class is very simple. It typically comes in two parts.
创建类的语法是很简单的，通常包括两部分。
The class interface is u...
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其他好文 时间：
2014-07-08 16:24:27
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168
[LeetCode]Remove Duplicates from Sorted Array...
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2014-07-08 16:07:52
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192
# @left part: [start, mid]
# @right part: (mid, end]
def merge(data, start, mid, end):
if mid < start or end < mid:
return 0
reverse = 0
'''
@ for start, it play as the start index of left par...
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其他好文 时间：
2014-07-08 15:04:06
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204
Given n non-negative integers a1, a2,
..., an, where each represents a point at coordinate (i, ai). n vertical
lines are drawn such that the two endpoints of line i is at (i, ai) and (i,
0). Fin...
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其他好文 时间：
2014-07-08 14:21:56
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190
The digital root of a positive integer is found by summing the digits of the integer. If the resulting value is a single digit then that digit is the digital root. If the resulting value contains two or more digits, those digits are summed and the process ...
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2014-07-08 14:12:32
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226
题目
Given a linked list, swap every two adjacent nodes and return its head.
For example,
Given 1->2->3->4, you should return the list as 2->1->4->3.
Your algorithm should use only constant spac...
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其他好文 时间：
2014-07-08 13:46:26
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205
Flip Game
Time Limit: 1000MS
Memory Limit: 65536K
Total Submissions: 29713
Accepted: 12876
Description
Flip game is played on a rectangular 4x4 field with two-sided...
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其他好文 时间：
2014-07-08 13:32:49
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189
SharePoint Tips about Permissions: What you need to knowI have been writing tips about SharePoint from last two years now. After a great popularity an...
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其他好文 时间：
2014-07-08 00:36:33
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262
