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LeetCode LRU Cache
Design and implement a data structure for Least Recently Used (LRU) cache. It should support the following operations:getandset.get(key)- Get the valu...
分类:其他好文   时间:2014-08-27 21:50:28    阅读次数:210
UVA 11992 Fast Matrix Operations
每一行都建一个线段树。。。。 Fast Matrix Operations There is a matrix containing at most 106 elements divided into r rows and c columns. Each element has a location (x,y) where 1 1 x1 y1 x2 y2 v ...
分类:其他好文   时间:2014-08-27 18:50:58    阅读次数:199
hash bucket
什么是bucketbucket的英文解释:Hash table lookup operations are often O(n/m) (where n is the number of objects in the table and m is the number of buckets), whi...
分类:其他好文   时间:2014-08-26 17:08:36    阅读次数:308
WindowAnimator笔记
文章仅记录自己的一点理解,仅供自己参考。 WindowAnimator是一个窗口动画推进类,从成员变量mAnimationRunnable可以看出来。google源码对应这个类的解释:“Singleton class that carries out the animations and Surface operations in a separate task on behalf of Win...
分类:Windows程序   时间:2014-08-26 09:52:10    阅读次数:553
Consistency model(The system supports a given model if operations on memory follow specific rules)
Consistency model From Wikipedia, the free encyclopedia In computer science, consistency models are used in distributed systems like distributed shared memory systems or distributed da...
分类:其他好文   时间:2014-08-25 11:53:34    阅读次数:359
Linearizability(also known as strict or atomic consistency)
In concurrent programming, an operation (or set of operations) is atomic, linearizable, indivisible or uninterruptible if it appears to the rest of the system to occur instantaneously. Atomicity is ...
分类:其他好文   时间:2014-08-25 11:52:54    阅读次数:331
uva 11992 - Fast Matrix Operations(线段树)
题目链接:uva 11992 - Fast Matrix Operations 题目大意:给定一个R?C的矩阵,初始状态每个位置均为0, 然后进行Q次操作 1,x1,y1,x2,y2,v:将所有(x,y)满足(x1≤x≤x2,y1≤y≤y2)的点加上v2,x1,y1,x2,y2,v:将所有(x,y)满足(x1≤x≤x2,y1≤y≤y2)的点变成v3,x1,y1,x2,y2:求所...
分类:其他好文   时间:2014-08-25 11:49:54    阅读次数:209
UML基本架构建模--类的辅助信息
?? Organizing Attributes and Operations 组织属性和操作   When drawing a class, you don’t have to show every attribute and every operation at once. In fact, in most cases, you can’t (there are too man...
分类:其他好文   时间:2014-08-21 22:50:55    阅读次数:423
微软云计算介绍与实践(实践之三十九)
……接上一章节,继续扣款(收费)报告。16、小张同学把下面的脚本复制到记事本中,保存并退出记事本。该脚本主要实现按正确的顺序执行所有所需的数据仓库作业17、返回ServiceManagerShell中,小张执行.\RunDWJobs.ps1这个脚本再启动所需的每一个数据仓库作业,该过程需要一定的..
分类:其他好文   时间:2014-08-21 15:14:05    阅读次数:215
Linux系统硬盘的IOPS测试
什么是IOPS?IOPS (英文:Input/Output Operations Per Second),即每秒进行读写(I/O)操作的次数,多用于数据库等场合,衡量随机访问的性能。存储端的IOPS性能和主机端的IO是不同的,IOPS 是指存储每秒可接受多少次主机发出的访问,主机的一次IO需要多次访...
分类:系统相关   时间:2014-08-21 14:45:14    阅读次数:366
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