题目如下:
S-Trees
A Strange Tree (S-tree) over the variable set is a binary tree representing a Boolean function
.Each path of the S-tree begins at the
root node and consists ...
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其他好文 时间:
2014-06-05 11:04:37
阅读次数:
248
??
Description
The country is facing a terrible civil war----cities in the country are divided into two parts supporting different leaders. As a merchant, Mr. M does not pay attention to politic...
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其他好文 时间:
2014-06-05 00:16:43
阅读次数:
266
Problem StatementIn the Republic of Nlogonia
there are N cities. For convenience, the cities are numbered 0 through N-1. For
each two different cities...
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其他好文 时间:
2014-05-31 00:47:40
阅读次数:
364
一直没实际的需求而使用ntile(),今天看了下,就是按序号分组的意思。还是以student表为例select
ntile(3) over (order by score desc) as zu, name, score, provincefrom student...
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其他好文 时间:
2014-05-30 08:08:34
阅读次数:
294
题目描述SH likes traveling around the world. When he
arrives at a city, he will ask the staff about the number of cities that
connected with this city dir...
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其他好文 时间:
2014-05-29 21:47:24
阅读次数:
381
1.对序列进行分组的函数(摘自web.py源码utils.py文件中) 1 def
group(seq, size): 2 """ 3 Returns an iterator over a series of lists of length
size from iterable. ...
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编程语言 时间:
2014-05-28 04:21:00
阅读次数:
365
需求Message->option->settings->Txt
Message(SMS)->Sms size limit for converting to mms - Over 10 segmentOptions:-
over 3 pages- over 6 pages- over 10 pag...
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其他好文 时间:
2014-05-26 15:10:16
阅读次数:
274
问题 E: Distance
时间限制: 1 Sec 内存限制: 128 MB
提交: 48 解决: 12
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题目描述
There is a battle field. It is a square with the side length 100 miles, and unfortunately we have two comrades who get ...
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其他好文 时间:
2014-05-26 05:57:27
阅读次数:
325
能举个例子吗?我也知道是括号里面取得值 但是哪个和哪个括号不清楚
还有是小括号中括号大括号也不清楚 能举个实例吗?$1,$2...是表示的小括号里的内容 $1是第一个小括号里的 ,$2是第2个小括号里的 比如
/gai([\w]+?)over([\d]+)/ 匹配 gainover123 $1= 括...
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其他好文 时间:
2014-05-26 00:04:22
阅读次数:
282
问题 K: Traveling
时间限制: 1 Sec 内存限制: 128 MB
提交: 13 解决: 4
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题目描述
SH likes traveling around the world. When he arrives at a city, he will ask the staff about the number of cities that...
分类:
其他好文 时间:
2014-05-25 01:44:43
阅读次数:
391