A graph which is connected and acyclic can be considered a tree. The height of the tree depends on the selected root. Now you are supposed to find the root that results in a highest tree. Such a root ...
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其他好文 时间:
2015-03-02 14:57:37
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151
Degree Sequence of Graph G
Time Limit: 5000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)
Total Submission(s): 1811 Accepted Submission(s): 750
Problem Description
Wang...
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其他好文 时间:
2015-03-02 09:34:41
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135
Problem Description
Let's design a new chess game. There are N positions to hold M chesses in this game. Multiple chesses can be located in the same position. The positions are constituted as a topological graph, i.e. there are directed edges connecting so...
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其他好文 时间:
2015-03-01 13:14:04
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294
chown用法:chown[选项]...[所有者][:[组]]文件...或:chown[选项]...--reference=参考文件文件...更改每个文件的所有者和/或所属组。当使用--referebce参数时,将文件的所有者和所属组更改为与指定参考文件相同-c,--changes类似verbose,但只在有更改时才显示结果--dereferenc..
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系统相关 时间:
2015-03-01 01:38:50
阅读次数:
256
ls -ldhtai 显示目录下面的文件ls -l 显示详细信息ls -d 显示当前目录ls -t 以时间先后顺序显示ls -a 列出所有文件包括隐藏文件ls -i 显示文件的inode号ls -h做单位换算,将byte换算成K,M,G等.显示信息解释:]# ls -ldrwxr-xr-x. 2 r...
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其他好文 时间:
2015-02-28 15:52:40
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186
Clone an undirected graph. Each node in the graph contains a label and a list of its neighbors.
OJ's undirected graph serialization: Nodes are labeled uniquely.
We use # as a separator for each ...
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其他好文 时间:
2015-02-28 13:07:11
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119
Description
一个无环的有向图称为无环图(Directed Acyclic Graph),简称DAG图。
AOE(Activity On Edge)网:顾名思义,用边表示活动的网,当然它也是DAG。与AOV不同,活动都表示在了边上,如下图所示:
如上所示,共有11项活动(11条...
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其他好文 时间:
2015-02-28 06:46:02
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240
My name is Charles Humble and I am here at QCon New York 2014 with Ian Robinson. Ian, can you introduce yourself to the InfoQ community?Hello, I am Ia...
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数据库 时间:
2015-02-28 00:12:03
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197
1 创建分支 git branch dev
git checkout dev
也可以一步完成 git checkout -b dev
2 查看当前分支 git branch
3 合并分支 git merge dev
3 删除一个分支 git branch -d dev
5 查看分支合并的情况git log --graph --pre...
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其他好文 时间:
2015-02-27 17:01:59
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148
git中查看日志,我们用的比较多的就是 git log 以及带一些参数,如:以一行显示提交日志:$ git log --pretty=oneline显示最后的几次提交日志:$ git log -4已界面的形式显示提交日志:$ git log --graph等等。。。。。但是另外还有一个命令,大家可能...
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其他好文 时间:
2015-02-27 16:35:32
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149