[题意]将一个数用二进制数表示,求一共有多少种表示方法. [分析]思路一:完全背包 [代码] #include <iostream> #include <cstdio> #include <cstring> #include <vector> #include <set> #include <map> #include <algorithm> #include <stack> #include <queu…

-----------------------------最优化问题------------------------------------- ----------------------常规动态规划  SOJ1162 I-Keyboard  SOJ1685 Chopsticks SOJ1679 Gangsters SOJ2096 Maximum Submatrix  SOJ2111 littleken bg SOJ2142 Cow Exhibition  SOJ2505 The County…

SOJ 13983. Milk Scheduling 这是比赛题,还是作死的我最讨厌的英文题,题目大意就是有n头奶牛,要在喂奶截止时间前给他喂奶并得到相应的含量的牛奶. 一开始的想法就是挑选截止日期的最大产奶量的那头牛喂养,后来果不其然的WA了. 空闲的时间也可以给奶牛喂奶啥的....bug不要太多. 于是改来改去了,期间又WA了几发,总算是A掉了,但是代码也是要多搓有多搓,估计除了我自己没人看得懂. 所以后来选用了优先队列,STL的东西用顺手了还是蛮好用的.还用了pair类. 思路从截止日期最…

Reference: http://blogs.msdn.com/b/felixmar/archive/2011/08/29/partitioning-amp-archiving-tables-in-sql-server-part-2-split-merge-and-switch-partitions.aspx In the 1st part of this post, I explained how to create a partitioned table using a partition…

Rotating partitions   You can use the ALTER TABLE statement to rotate any logical partition to become the last partition. Rotating partitions is supported for partitioned (non-universal) table spaces and range-partitioned table spaces, but not for pa…

This is a common question asked by many Kafka users. The goal of this post is to explain a few important determining factors and provide a few simple formulas. More Partitions Lead to Higher Throughput The first thing to understand is that a topic pa…

集群为了保证数据一致性,在同步数据的同时也会通过节点之间的心跳通信来保证对方存活.那如果集群节点通信异常会发生什么,系统如何保障正常提供服务,使用何种策略回复呢? rabbitmq提供的处理脑裂的方法有两种:autoheal.pause_minority. autoheal指的是在出现脑裂且恢复时采用分区中与客户端连接数最多的一个分区来作为winner,并将所有的losers分区重启. pause_miniroty指的是在出现脑裂后判断自己是否为众数者majority,即自己所在分区是否为总节点…

2013-05-01 Created By BaoXinjian…

why we need partitions The first and most demanding reason to use partitions in a database is to increase the performance of the database. This is achieved by partition-wise joins; if a user’s queries perform a lot of full-table scans, partitioning w…

[user@username home]$ lspci00:00.0 Host bridge: Intel Corporation 4th Gen Core Processor DRAM Controller (rev 06)00:01.0 PCI bridge: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor PCI Express x16 Controller (rev 06)00:14.0 USB controller: I…