Starting an Activity
开启一个活动
Previous NextGet
started
This lesson teaches you to
这个课程教你去了解以下:
Understand the Lifecycle Callbacks 理解生命周期回调Specify Your App's Launcher Act...
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其他好文 时间:
2014-06-05 07:08:15
阅读次数:
359
It’s important to establish and follow coding
conventions—they make your code consistent, predictable, and much easier to read
and understand. A new d...
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编程语言 时间:
2014-05-25 18:49:35
阅读次数:
316
大意:小明喜欢带他的朋友们逛自己的农场。农场有n块地,屋舍位于1号,谷仓位于n号。有m条路连接这些地,路是无向的,每条路长度已知。他想设计一条线路,从1出发,到n,再回到1,且同一条路不走两遍。问最短的行程是多少。
分析:可建模为最小费用最大流。从1出发,到n,再回到1,相当于找到两条从1到n的路径且二者不能有交集。
对于每条路,费用为长度,容量为1,这样就限制了只能走一次。新建一个顶点连向1,费用为0,容量为2.,作为等价源点。同理再建一个等价汇点。
因为重边的存在,图的存储结构为邻接表而非邻接矩阵...
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其他好文 时间:
2014-05-15 01:40:24
阅读次数:
366
ArticlebyAlexioBashpublishedonhiswebsiteaboutArchLinuxinitalian.Knowwhatishappeningin“realtime”onyoursystemsisinmyopinionthebasistouseandoptimizeyourOS.OnArchLinuxorbetteronGNU/Linuxingeneralthetopcommandcanhelpus,thisisaveryusefulsystemmonitorthatisreall..
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系统相关 时间:
2014-05-11 19:30:22
阅读次数:
546
Yet another easy-to-understand, easy-to-use aws s3 python sdk code examples....
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编程语言 时间:
2014-05-09 20:51:39
阅读次数:
703
UML diagrams compliment inline documentation
(javadoc) and allow to better explore / understand a design. Moreover, you can
print and bring them to ta...
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编程语言 时间:
2014-04-30 03:48:50
阅读次数:
716
When Vito Maretti writes an important letter he encrypts it. His method is not very reliable but it’s enough to make any detective understand nothing in that letter. Sheriff doesn’t like such state
...
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其他好文 时间:
2014-04-27 21:45:00
阅读次数:
459