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[POJ 1308]Is It A Tree?(并查集判断图是否为一棵有根树)
Description A tree is a well-known data structure that is either empty (null, void, nothing) or is a set of one or more nodes connected by directed edges between nodes satisfying the following proper...
分类:其他好文   时间:2014-08-23 17:46:41    阅读次数:218
查询mysql当前连接数
1.show status like ‘max‘; ?? Threads_connected? 当前的连接数 ?? Connections? 试图连接到(不管是否成功)MySQL服务器的连接数。 ?? Max_used_connections? 服务器启动后已经同时使用的连接的最大数量...
分类:数据库   时间:2014-08-22 14:40:09    阅读次数:156
poj 1679 The Unique MST (判断最小生成树是否唯一)
The Unique MST Time Limit: 1000MS   Memory Limit: 10000K Total Submissions: 20679   Accepted: 7255 Description Given a connected undirected graph, tell if its minimum s...
分类:其他好文   时间:2014-08-21 21:18:54    阅读次数:255
UVA - 1393 Highways
Description Hackerland is a happy democratic country with m×n cities, arranged in a rectangular m by n grid and connected by m roads in the east-west direction and n roads in the north-south di...
分类:其他好文   时间:2014-08-20 22:45:43    阅读次数:425
(转)CBCentralManager Class 的相关分析
本文转自:http://blog.csdn.net/feixiang_song/article/details/17395811Overview总体概述CBCentralManagerobjects are used to manage discovered or connected remote ...
分类:其他好文   时间:2014-08-20 15:48:02    阅读次数:246
通过案例学习调优之--Oracle ASH
通过案例学习调优之--OracleASH应用环境:操作系统:RedHatEL55Oracle:Oracle10gR2案例场景:SCOTT用户做事务处理,事务已经完成!16:42:14SYS@prod>connscott/tiger Connected. 16:42:20SCOTT@prod>begin 16:42:232foriin1..1000000loop 16:42:273executeimmediate‘ins..
分类:数据库   时间:2014-08-18 18:49:53    阅读次数:570
Android bluetooth介绍(四): a2dp connect流程分析
关键词:蓝牙blueZ  A2DP、SINK、sink_connect、sink_disconnect、sink_suspend、sink_resume、sink_is_connected、sink_get_properties、AUDIO、DBUS版本:基于android4.2之前版本 bluez内核:linux/linux3.08系统:android/android4.1.3.4作者:xubi...
分类:移动开发   时间:2014-08-17 18:38:32    阅读次数:439
Square spiral
Square spiralNikola picks up a strange circuit board. All of its elements are connected in a spiral and it is possible to connect the neighboring elem...
分类:其他好文   时间:2014-08-17 09:09:51    阅读次数:411
Android bluetooth介绍(三): 蓝牙扫描(scan)设备分析
关键词:蓝牙blueZ  A2DP、SINK、sink_connect、sink_disconnect、sink_suspend、sink_resume、sink_is_connected、sink_get_properties、AUDIO、DBUS版本:基于android4.2之前版本 bluez内核:linux/linux3.08系统:android/android4.1.3.4作者:xubi...
分类:移动开发   时间:2014-08-15 16:09:39    阅读次数:618
Crane(线段树)
Description ACM has bought a new crane (crane -- je?áb) . The crane consists of n segments of various lengths, connected by flexible joints. The end of the i-th segment is joined to the beginning...
分类:其他好文   时间:2014-08-14 16:50:28    阅读次数:240
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