Description
Shuffling the pixels in a bitmap image sometimes yields random looking images. However, by repeating the shuffling enough times, one finally recovers the original images. This should ...
分类：
其他好文 时间：
2014-09-01 15:39:53
阅读次数：
230
Sqlalchemy ORM操作归类
#简单查询
#注意User是一个类对象,user_table是数据库中的表
#session = sessionmaker() #创建了一个自定义了的 Session类
1. session.query(User).all()
session.query(User).first()# 记录不存在时，first() 会返回 None
session.query(User).one()#用于获取所有元素，如果没有获得结果或者返回了多个结果，则会产生一个 err...
分类：
数据库 时间：
2014-09-01 14:05:33
阅读次数：
317
Definition Ensure a class has only one instance and provide a global point of access to it.Participants The classes and/or objects participating in th...
分类：
其他好文 时间：
2014-09-01 12:19:33
阅读次数：
162
Sorting is one of the most usedoperations in real life, where Computer Science comes into act. It iswell-known that the lower bound of swap based sorting is nlog(n).It means that the best possible sor...
分类：
其他好文 时间：
2014-09-01 10:50:23
阅读次数：
234
EmailYou don't have any verified emails. We recommend verifying at least one email.Email verification helps our support team help you in case you have...
分类：
其他好文 时间：
2014-09-01 09:17:22
阅读次数：
3069
You are estimating the threat level of quarantined zones that have been abandoned to the infection.
One of the key variables in determining a zone’s threat level is the EIT (Effective Infection Time)...
分类：
其他好文 时间：
2014-09-01 00:31:42
阅读次数：
252
问题描述
Given a non-negative number represented as an array of digits, plus one to the number.
The digits are stored such that the most significant digit is at the head of the list....
分类：
其他好文 时间：
2014-08-31 23:05:42
阅读次数：
390
LeetCode: Reverse Linked ListReverse a linked list from position m to n. Do it in-place and in one-pass. For example:Given 1->2->3->4->5->NULL, m = 2 ...
分类：
其他好文 时间：
2014-08-31 22:45:51
阅读次数：
215
1,Project are organizational units in the cloud,and are also known as tenants or accounts.Each user is a member of one or more projects.Within a proje...
分类：
其他好文 时间：
2014-08-31 21:20:43
阅读次数：
249
Given a string s and a dictionary of words dict, determine if s can be segmented into a space-separated sequence of one or more dictionary words.
For example, given
s = "leetcode",
dict = ["leet"...
分类：
其他好文 时间：
2014-08-31 20:07:12
阅读次数：
233
