http://blog.csdn.net/kenden23/article/details/18696083本题是十分麻烦的题目,情况是非常多,网上也很多方法,其中最有效,优雅的方法是有限状态自动机(Finite automata machine)。其他一般方法都会十分复杂,而代码不能算优雅。为此我...
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其他好文 时间:
2014-10-26 11:30:51
阅读次数:
171
问题描述:
Given a string, determine if it is a palindrome, considering only alphanumeric characters and ignoring cases.
For example,
"A man, a plan, a canal: Panama" is a palindrome.
"race a car" is...
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其他好文 时间:
2014-10-25 21:30:51
阅读次数:
191
Determine if a Sudoku is valid, according to: Sudoku Puzzles - The Rules.
The Sudoku board could be partially filled, where empty cells are filled with the character '.'.
A partially fille...
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其他好文 时间:
2014-10-25 17:27:30
阅读次数:
172
Given a string containing just the characters'(',')','{','}','['and']', determine if the input string is valid.The brackets must close in the correct ...
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其他好文 时间:
2014-10-25 14:18:46
阅读次数:
178
Microsoft SQL Server 2012 Internals把 SQL 语句的处理分为四个阶段,分别是 解析、绑定、优化、执行,如图所示:解析(Parse)主要是语法分析,比较简单。绑定(Bind),书中的解释比较简略:For queries with valid SQL syntax, ...
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其他好文 时间:
2014-10-24 16:08:22
阅读次数:
266
题目:Determine if a Sudoku is valid, according to:Sudoku Puzzles - The Rules.The Sudoku board could be partially filled, where empty cells are filled wi...
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其他好文 时间:
2014-10-24 14:15:06
阅读次数:
174
Given a stringsand a dictionary of wordsdict, add spaces insto construct a sentence where each word is a valid dictionary word.Return all such possibl...
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其他好文 时间:
2014-10-24 12:38:28
阅读次数:
261
Arbitrary text placed in an HTML tag often needs to be altered, to ensure that the resulting HTML remains valid.Problem characters can include:"'\&The...
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编程语言 时间:
2014-10-24 09:09:45
阅读次数:
320
原因使用Eclipse+maven构建项目build完之后,会在项目顶上显示一个叹号.打开problem显示原因为对应的jar包损坏.如图:解决方案使用别的版本的jar包自己上网找到没问题的jar包进行替换补充关于有人说可以在.classpath文件中删除这个对应的依赖来解决问题实质是治标不治本.不...
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系统相关 时间:
2014-10-23 14:04:00
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23534
Given a string containing just the characters'('and')', find the length of the longest valid (well-formed) parentheses substring.For"(()", the longest...
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其他好文 时间:
2014-10-22 23:32:51
阅读次数:
235