Alice and Bob decide to play a funny game. At the beginning of the game they pick n(1 <= n <= 10 6) coins in a circle, as Figure 1 shows. A move consi ...
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其他好文 时间:
2017-07-25 22:27:50
阅读次数:
181
Almost Sorted Array We are all familiar with sorting algorithms: quick sort, merge sort, heap sort, insertion sort, selection sort, bubble sort, etc. ...
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其他好文 时间:
2017-07-24 20:26:59
阅读次数:
267
"Peer authentication" means that it's comparing your database username against your Linux username. It should work if you're logged in as postgres. Yo ...
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数据库 时间:
2017-07-24 01:20:56
阅读次数:
763
工厂方法模式(Factory Method Pattern),是简单工厂模式的扩展,其英文原话是"Define an interface for creating an object,but let the subclasses decide which class to instantiate.F ...
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其他好文 时间:
2017-07-21 10:35:30
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248
Given a non-negative integer c, your task is to decide whether there're two integers a and b such that a2 + b2 = c. Example 1: Example 2: s ...
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其他好文 时间:
2017-07-16 15:50:23
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137
Intersection You are to write a program that has to decide whether a given line segment intersects a given rectangle. An example: line: start point: ( ...
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其他好文 时间:
2017-07-15 19:51:14
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200
Given a non-negative integer c, your task is to decide whether there're two integers a and b such that a2 + b2 = c.Example 1:Input: 5Output: TrueExpla... ...
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其他好文 时间:
2017-07-14 23:58:09
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323
在第一篇文章 iOS下JS与OC互相调用(一)中讲述了使用UIWebView拦截URL的方式来处理JS与OC交互。 由于UIWebView比较耗内存,性能上不太好,而苹果在iOS 8中推出了WKWebView。 同样的用WKWebView也可以拦截URL,做JS 与OC交互。关于WKWebView与 ...
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移动开发 时间:
2017-07-12 16:15:46
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272
check_ping command is a Nagios plugin that is used to check the ping output of a remote server. Based on the ping output, you can decide to set certai ...
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移动开发 时间:
2017-07-09 16:23:19
阅读次数:
401
工厂方法模式:定义了一个创建对象的接口,由子类来决定详细实例化那个对象。工厂方法模式让类的实例化转移到子类中来推断。 Define an interface for creating an object, but let subclasses decide which class to instan ...
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其他好文 时间:
2017-07-05 09:52:38
阅读次数:
169