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Euler Project question 34 in python way
# 145 is a curious number, as 1! + 4! + 5! = 1 + 24 + 120 = 145.# Find the sum of all numbers which are equal to the sum of the factorial of their dig...
分类:编程语言   时间:2014-10-30 19:03:14    阅读次数:209
Euler Project question 30 in python way
# Surprisingly there are only three numbers that can be written as the sum of fourth powers of their digits:# 1634 = 14 + 64 + 34 + 44# 8208 = 84 + 24...
分类:编程语言   时间:2014-10-30 18:40:45    阅读次数:183
协程(Coroutine)并不是真正的多线程
自:http://www.zhihu.com/question/23895384说到Coroutine,我们必须提到两个更远的东西。在操作系统(os)级别,有进程(process)和线程(thread)两个(仅从我们常见的讲)实际的“东西”(不说概念是因为这两个家伙的确不仅仅是概念,而是实际存在的,...
分类:编程语言   时间:2014-10-30 15:14:39    阅读次数:382
使用remove_constants工具查看Oracle是否使用绑定变量
https://asktom.oracle.com/pls/asktom/f?p=100:11:::::P11_QUESTION_ID:1163635055580http://blog.csdn.net/zq9017197/article/details/76900611、首先创建一个表,用于存放整...
分类:数据库   时间:2014-10-29 23:40:31    阅读次数:275
【MongoDB】mongoimport and mongoexport of data (一)
In the software development, we usually are faced with a common question of exporting or importing data from database. So in this blog we will together study the mongoddb export and mongodb import.  ...
分类:数据库   时间:2014-10-28 02:07:13    阅读次数:176
String to Integer (atoi)
Question:Implementatoito convert a string to an integer.Hint:Carefully consider all possible input cases. If you want a challenge, please do not see b...
分类:其他好文   时间:2014-10-27 12:25:57    阅读次数:121
how to close the old Session - if the same username starts a new Session?
Question:want to close the old Session - if the same username starts a new SessionAny ideas how i can do this? - one user should not be able to start ...
分类:其他好文   时间:2014-10-26 10:19:28    阅读次数:267
leetcode-distinct sequences
Solution: when see question about two strings , DP should be considered first.We can abstract this question to calculate appear times for string T wit...
分类:其他好文   时间:2014-10-26 00:12:57    阅读次数:211
怎样查看修改sqlserver数据库的编码格式
原文地址:http://zhidao.baidu.com/question/107168202.htmlSELECT COLLATIONPROPERTY('Chinese_PRC_Stroke_CI_AI_KS_WS', 'CodePage') 下面是查询结果: 936 简体中文GBK 950 繁....
分类:数据库   时间:2014-10-25 22:51:14    阅读次数:258
java集合浅析
参照互联网 - 博客园 -http://www.blogjava.net/EvanLiu/archive/2007/11/12/159884.html。Question:1.Q:大致讲解java集合的体系结构A:List、Set、Map是这个集合体系中最主要的三个接口。其中List和Set继承自Co...
分类:编程语言   时间:2014-10-23 22:15:16    阅读次数:193
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