接前天的博客，今天继续讲解后27题。测试题地址：http://www.eosgarden.com/en/articles/objc-quizz/take/31.Which of the following can be inherited?以下哪些可被继承？答案：protocols，classes。...
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其他好文 时间：
2015-08-15 19:46:11
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159
Class OverviewAn activity is a single, focused thing that the user can do. Almost all activities interact with the user, so the Activity class takes c...
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其他好文 时间：
2015-08-15 19:44:31
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123
Problem DescriptionAs we all know the Train Problem I, the boss of the Ignatius Train Station want to know if all the trains come in strict-increasing order, how many orders that all the trains can ge...
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其他好文 时间：
2015-08-15 16:39:48
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150
Problem DescriptionAll you know Goldbach conjecture.That is to say, Every even integer greater than 2 can be expressed as the sum of two primes. Today...
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其他好文 时间：
2015-08-15 16:25:19
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99
Description
In 1742, Christian Goldbach, a German amateur mathematician, sent a letter to Leonhard Euler in which he made the following conjecture:
Every even number greater than 4 can be
written...
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数据库 时间：
2015-08-15 13:38:01
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262
??Pointers to classesObjects can also be pointed to by pointers: Once declared, a class becomes a valid type, so it can be used as the type pointed to...
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其他好文 时间：
2015-08-15 13:30:24
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95
AFragmentrepresents a behavior or a portion of user interface in anActivity. You can combine multiple fragments in a single activity to build a multi-...
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其他好文 时间：
2015-08-15 13:27:13
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118
03-树3. Tree Traversals Again (25)时间限制200 ms内存限制65536 kB代码长度限制8000 B判题程序Standard作者CHEN, YueAn inorder binary tree traversal can be implemented in a non...
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其他好文 时间：
2015-08-15 13:24:55
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95
This problem can be solved easily if we are allowed to use more than O(1) space. For example, you may create a copy of the original matrix (O(mn)-spac...
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其他好文 时间：
2015-08-15 13:15:32
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120
This problem is a little tricky at first glance. However, if you have finished theHouse Robberproblem, this problem can simply bedecomposed into two H...
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其他好文 时间：
2015-08-15 11:43:56
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105
