PDF versionPDF & CDFThe probability density function of the uniform distribution is $$f(x; \alpha, \beta) = \begin{cases}{1\over\beta-\alpha} & \mbox{...
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其他好文 时间：
2015-01-08 13:14:00
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176
1811. Longest Common SubstringProblem code: LCSA string is finite sequence of characters over a non-empty finite set Σ.In this problem, Σ is the set o...
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其他好文 时间：
2015-01-07 23:22:12
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154
语法：ROW_NUMBER() OVER(PARTITION BY COLUMN ORDER BY COLUMN)简单的说row_number()从1开始，为每一条分组记录返回一个数字，这里的ROW_NUMBER() OVER (ORDER BY xlh DESC) 是先把xlh列降序，再为降序以后...
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数据库 时间：
2015-01-07 18:10:07
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254
DescriptionIn the Byteotian Line Forest there are trees in a row. On top of the first one, there is a little bird who would like to fly over to the t....
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其他好文 时间：
2015-01-06 21:22:07
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278
Implement an iterator over a binary search tree (BST). Your iterator will be initialized with the root node of a BST.
Calling next() will return the next smallest number in the BST.
Note: next()...
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其他好文 时间：
2015-01-06 20:09:24
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159
Implement an iterator over a binary search tree (BST). Your iterator will be initialized with the root node of a BST.Callingnext()will return the next...
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其他好文 时间：
2015-01-06 13:44:43
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276
Algorithmic Trading has been a hot topic for equity/derivative trading over a decade. Many ibanks and hedge funds have built their own algorithmic tra...
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其他好文 时间：
2015-01-05 16:26:56
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227
Key Concept: TypesTypes are one of the most fundamental concepts in programming and aconcept that we will come back to over and over in this Primer. A...
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编程语言 时间：
2015-01-04 18:40:01
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191
--sql 2000select 序号 = (select count(1) from tb where 学号 < t.学号) + 1,学号 ,姓名 from tb t--sql 2005select 序号 = row_number() over(order by 学号),学号 ,姓名 from t...
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数据库 时间：
2015-01-04 16:52:37
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262
