CF17C Balance

题意 [题目描述] 一个仅由a,b,c三种字符组成的字符串,可以对其进行如下两种操作: 选择两个相邻字符,将第一个字符替换成第二个. 选择两个相邻字符,将第二个字符替换成第一个. 这样,通过任意多次的操作,可以得到许多不同的串,为了追求字符的平衡, 我们要求a,b,c三种字符在字符串中出现的次数两两之差都不能大于1. 你的任务是,统计给定字符串通过任意多次的操作,能够得到的不同的平衡串的个数. [输入格式] 输入文件包含2行. 第一行包含1个正整数n,表示字符串长度. 第二行包含1个长度为n的…

HGOI20180817 （NOIP模拟Day1 task）

HGOI自测初测:150=80+20+50 rank1~rank3(并列3个rank1,所以我是rank3 qwq) 今日分突然想简约 CF359A Table https://www.luogu.org/problemnew/show/CF359A 题目描述 Simon has a rectangular table consisting of nn rows and mm columns. Simon numbered the rows of the table from top to b…

Sample a balance dataset from imbalance dataset and save it（从不平衡数据中抽取平衡数据，并保存）

有时我们在实际分类数据挖掘中经常会遇到,类别样本很不均衡,直接使用这种不均衡数据会影响一些模型的分类效果,如logistic regression,SVM等,一种解决办法就是对数据进行均衡采样,这里就提供了一个建议代码实现,要求输入和输出数据格式为Label+Tab+Features, 如Libsvm format -1 1:0.875 2:-1 3:-0.333333 4:-0.509434 5:-0.347032 6:-1 7:1 8:-0.236641 9:1 10:-0.935484 1…

LB（Load balance）负载均衡集群--{LVS-[NAT+DR]单实例实验+LVS+keeplived实验} 菜鸟入门级

LB(Load balance)负载均衡集群 LVS-[NAT+DR]单实例实验 LVS+keeplived实验 LVS是Linux Virtual Server的简写,意即Linux虚拟服务器,是一个虚拟的服务器集群系统. 逻辑可分为: 1调度层 (Director):它是整个集群对外面的前端机,负责将客户的请求发送到一组服务器上执行,而客户认为服务是来自一个IP地址(我们可称之为虚拟IP地址)上的. 2[服务器池(server pool)/集群层(Real server)]:是一组真正执行客…

Balance - 七夕悠然

想争取一个月至少一篇博客的,还是没搭上七月的末班车.两个小妹妹来上海看我了,工作上又有点儿忙,充分利用所有时间了,还是没有挪出时间来写东西,貌似写东西也要时机一样,需要在可以静静思考的时候,再加上有淡淡的忧伤最好! 三姐妹在上海的小团聚很开心,我们一起逛街,轮流的试同一件喜爱的衣服,看各种小东西:疯狂的拍照,充分利用每一个镜头:不停的说话和打闹.唯一的遗憾是时间短,我又忙,陪她们的时间不多.成长的路上和亲人聚少离多,有机会相聚时抓住机会,应该就不会惋惜.我们都怕孤单,但幸运的我们依然有恋人朋友亲…

Java-集合=第五题（Map）设计Account 对象如下： private long id; private double balance; private String password; 要求完善设计，使得该Account 对象能够自动分配id。给定一个List 如下： List list = new ArrayList(); list.add(new A

第五题 (Map)设计Account 对象如下: private long id; private double balance; private String password; 要求完善设计,使得该Account 对象能够自动分配id. 给定一个List 如下: List list = new ArrayList(); list.add(new Account(10.00, “1234”)); list.add(new Account(15.00, “5678”)); list.add(ne…

java异常处理：建立exception包，建立Bank类，类中有变量double balance表示存款,Bank类的构造方法能增加存款，Bank类中有取款的发方法withDrawal(double dAmount),当取款的数额大于存款时,抛出InsufficientFundsException,取款数额为负数，抛出NagativeFundsException,如new Bank(100),

建立exception包,建立Bank类,类中有变量double balance表示存款,Bank类的构造方法能增加存款,Bank类中有取款的发方法withDrawal(double dAmount),当取款的数额大于存款时,抛出InsufficientFundsException,取款数额为负数,抛出NagativeFundsException,如new Bank(100),表示存入银行100元,当用方法withdrawal(150),withdrawal(-15)时会抛出自定义异常. pa…

UVa 673 Parentheses Balance -SilverN

You are given a string consisting of parentheses () and []. A string of this type is said to be correct: (a) if it is the empty string (b) if A and B are correct, AB is correct, (c) if A is correct, (A) and [A] is correct. Write a program that takes…

POJ1837 Balance[分组背包]

Balance Time Limit: 1000MS Memory Limit: 30000K Total Submissions: 13717 Accepted: 8616 Description Gigel has a strange "balance" and he wants to poise it. Actually, the device is different from any other ordinary balance. It orders two arms…

UVa 673 Parentheses Balance

一个匹配左右括号的问题 /*UVa 673 Parentheses Balance*/ #include<iostream> #include<algorithm> #include<cmath> #include<cstring> #include<stack> using namespace std; char c[500]; int n; int pd(char q,char e){ if(q=='(' && e==')')…

A feature in Netsuite Reports > Financial > Balance Sheet

最新版本的Customize balance sheet page Left side > Layout > Add Reference Row Then in right side, you were able to specify a custom or standard REPORT value. (linking new report) - In the Row field, specify the sub row base on specified report 这个troubles…

POJ 3142 The Balance

Description Ms. Iyo Kiffa-Australis has a balance and only two kinds of weights to measure a dose of medicine. For example, to measure 200mg of aspirin using 300mg weights and 700mg weights, she can put one 700mg weight on the side of the medicine an…

Codeforces Beta Round #17 C. Balance DP

C. Balance 题目链接 http://codeforces.com/contest/17/problem/C 题面 Nick likes strings very much, he likes to rotate them, sort them, rearrange characters within a string... Once he wrote a random string of characters a, b, c on a piece of paper and began…

How To Create a Personal Balance Sheet

Calculating your personal net worth is the best way to know exactly what your starting point is, in any financial plan you develop. A balance sheet calculates your net worth by comparing your financial assets (what you own) with your financial liabil…

组合数学 - 母函数的运用 --- hdu 1709 :The Balance

The Balance Time Limit: 1000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 5706 Accepted Submission(s): 2311 Problem Description Now you are asked to measure a dose of medicine with a balance and a number o…

Server Data Synchronization Via Linux rsync、rsync+inotify Between Load Balance Server

目录 . 远程文件同步的应用场景 . rsync+crontab . rsync+inotify 1. 远程文件同步的应用场景在负载均衡集群的应用场景中,往往在多台web server的前端有一个提供负载均衡的Load Balance Server . 客户端的通过访问一个统一的域名到这个Load Balance上,例如:www.test.com,Load Balance Server会根据负载调度算法将请求合理地分配到集群的子节点中 . 客户端上传的文件同样也会被Load Balance S…

POJ 1837 Balance

Balance Time Limit: 1000MS Memory Limit: 30000K Total Submissions: 9240 Accepted: 5670 Description Gigel has a strange "balance" and he wants to poise it. Actually, the device is different from any other ordinary balance. It orders two arms of n…

Hadoop Balance

一.hadoop balance工具的用法: 启动balance: bin/start-balancer.sh -threshold 5 停止balance: bin/stop-balancer.sh 二.影响hadoop balance工具的几个参数: -threshold默认设置:10,参数取值范围:0-100,参数含义:判断集群是否平衡的目标参数,每一个datanode存储使用率和集群总存储使用率的差值都应该小于这个阀值,理论上,该参数设置的越小,整个集群就越平衡,但是线上环境中,hado…

Balance

Balance Time Limit: 1000MS Memory Limit: 30000K Total Submissions: 11947 Accepted: 7464 Description Gigel has a strange "balance" and he wants to poise it. Actually, the device is different from any other ordinary balance. It orders two arms of…

HDOJ 1709 The Balance(母函数)

The Balance Time Limit: 1000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 4497 Accepted Submission(s): 1808 Problem Description Now you are asked to measure a dose of medicine with a balance and a number o…

Oracle RAC 服务器端连接负载均衡(Load Balance)

Oracle RAC服务器端的负载均衡是根据RAC中各节点的连接负荷数情况,将新的连接请求分配到负荷最小的节点上去.当数据库处于运行时,RAC中各节点的PMON进程每3秒会将各自节点的连接负荷数更新到service_register.而对于节点中任意监听器故障或监听器意外失败时,PMON进程会每1秒钟检查当前节点上的监听是否重启,以获得最新的负载信息来及时调整负载均衡.本文主要演示suse 10 + oracle 10g rac下的服务器端的负载均衡. 有关客户端的负载均衡可参考 Or…

Oracle RAC 客户端连接负载均衡(Load Balance)

实现负载均衡(Load Balance)是Oracle RAC最重要的特性之一,主要是把负载平均分配到集群中的各个节点,以提高系统的整体吞吐能力.通常情况下有两种方式来实现负载均衡,一个是基于客户端连接的负载均衡,一个是基于服务器端监听器(Listener)收集到的信息来将新的连接请求分配到连接数较少实例上的实现方式.本文主要讨论的是基于客户端连接的负载均衡,并给出演示. 与负载均衡配置之前的监听配置请参考 ORACLE RAC 监听配置 (listener.ora t…

UVa673 Parentheses Balance

// UVa673 Parentheses Balance // 题意:输入一个包含()和[]的括号序列,判断是否合法. // 具体递归定义如下:1.空串合法:2.如果A和B都合法,则AB合法:3.如果A合法则(A)和[A]都合法. // 算法:用一个栈.注意输入可能有空串 #include<cstdio> #include<cstring> #include<iostream> #include<string> #include<algorithm&…

设计Account 对象如下： private long id; private double balance; private String password; 要求完善设计，使得该Account 对象能够自动分配id。给定一个List 如下： &#

package homework005; public class Account { private long id; private double balance; private String password; public long getId() { return id; } public void setId(long id) { this.id = id; } public double getBalance() { return balance; } public void s…

How to manage and balance “Huge Data Load” for Big Kafka Clusters---reference

1. Add Partition Tool Partitions act as unit of parallelism. Messages of a single topic are distributed to multiple partitions that can be stored and served on different servers. Upon creation of a topic, the number of partitions for this topic has t…

Using load balance for thrift servers

Software load balance .Nginx(http://nginx.org) 1.Install nginx download source code from http://nginx.org/en/download.html ./auto/configure make & make install 2.Install tcp module patch developed by Yao Weibin http://yaoweibin.github.io/nginx_tcp_pr…

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