最近看了boost::any类源码,其实现主要依赖typeid操作符。很好奇这样实现的时间和空间开销有多大,决定探一下究竟。VS2008附带的type_info类只有头文件,没有源文件,声明如下:[cpp]view plaincopyclasstype_info{public:virtual~typ...
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编程语言 时间:
2015-11-30 07:11:56
阅读次数:
225
Minimum Height TreesFor a undirected graph with tree characteristics, we can choose any node as the root. The result graph is then a rooted tree. Amon...
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编程语言 时间:
2015-11-29 21:19:38
阅读次数:
256
Currying is a core concept of functional programming and a useful tool for any developer's toolbelt.Example 1:let f = a => b => c => a+b+c;let result ...
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编程语言 时间:
2015-11-29 06:19:04
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140
Write an algorithm to determine if a number is "happy".A happy number is a number defined by the following process: Starting with any positive integer...
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移动开发 时间:
2015-11-28 12:01:16
阅读次数:
216
win7或win8 64位调试程序,出现这样的错误提示:未在本地计算机上注册 Microsoft.Jet.OLEDB.4.0 提供程序解决方法如下:方法一:“设置应用程序池默认属性”/“常规”/”启用32位应用程序”,设置为 true。 如下图所示:方法二:生成->配置管理器->平台->点击Any ...
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数据库 时间:
2015-11-28 10:25:15
阅读次数:
151
Problem DescriptionIn mathematics, and more specifically in graph theory, a tree is an undirected graph in which any two nodes are connected by exactl...
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其他好文 时间:
2015-11-27 21:54:29
阅读次数:
285
For a undirected graph with tree characteristics, we can choose any node as the root. The result graph is then a rooted tree. Among all possible roote...
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其他好文 时间:
2015-11-27 14:34:20
阅读次数:
337
1346. Intervals of MonotonicityTime limit: 1.0 secondMemory limit: 64 MBIt’s well known that a domain of any continuous function may be divided into i...
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其他好文 时间:
2015-11-26 23:22:16
阅读次数:
282
INADDR_ANY是ANY,是绑定地址0.0.0.0上的监听, 能收到任意一块网卡的连接;INADDR_LOOPBACK, 也就是绑定地址LOOPBAC, 往往是127.0.0.1, 只能收到127.0.0.1上面的连接请求是用于多IP机器上 比如你的机器有三个ip 192.168.1.1 ...
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其他好文 时间:
2015-11-26 01:09:02
阅读次数:
190
原文地址https://github.com/jrburke/requirejs/issues/354Area there any plans to standardize/recommend a particular approach? If there is, I would suggest t...
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Web程序 时间:
2015-11-25 22:16:03
阅读次数:
396