题目描述 On the bed of one particularly long and straight Byteotian brook there lie rocks jutting above the water level. Their distances from the brook's spring are respectively. A small frog sitting on one of these is about to begin its leaping traini…
从左往右维护两个指针l,r表示离i最近的k个点的区间,预处理出每个点出发的后继,然后倍增. #include<cstdio> typedef long long ll; const int N=1000010,BUF=20000000,OUT=8000000; int n,k,i,l=1,r,f[N],g[N],t[N],Outn[20],Outcnt;ll m,a[N];char Buf[BUF],*buf=Buf,Out[OUT],*ou=Out; inline ll read(){ll…
POI2010题解 我也不知道我为什么就开始刷POI了 有些题目咕掉了所以不完整(我都不知道POI到底有多少题) [BZOJ2079][Poi2010]Guilds (貌似bz跟洛谷上的不是一个题?) 并查集判孤立点就行了. #include<cstdio> #include<algorithm> using namespace std; int gi(){ int x=0,w=1;char ch=getchar(); while ((ch<'0'||ch>'9')&a…
引言 <分布式系统理论进阶 - Paxos>介绍了一致性协议Paxos,今天我们来学习另外两个常见的一致性协议——Raft和Zab.通过与Paxos对比,了解Raft和Zab的核心思想.加深对一致性协议的认识. Raft Paxos偏向于理论.对如何应用到工程实践提及较少.理解的难度加上现实的骨感,在生产环境中基于Paxos实现一个正确的分布式系统非常难[1]: There are significant gaps between the description of the Paxos al…
A frog is crossing a river. The river is divided into x units and at each unit there may or may not exist a stone. The frog can jump on a stone, but it must not jump into the water. Given a list of stones' positions (in units) in sorted ascending ord…
参考: Zookeeper的一致性协议:Zab Chubby&Zookeeper原理及在分布式环境中的应用 Paxos vs. Viewstamped Replication vs. Zab Zab vs. Paxos Zab: High-performance broadcast for primary-backup systems Chubby:面向松散耦合的分布式系统的锁服务 Chubby 和Zookeeper 的理解 zookeeper 使用Zab(zookeeper atom broa…
http://acm.hdu.edu.cn/showproblem.php?pid=5037 网络赛 北京 比较难的题 Frog Time Limit: 3000/1500 MS (Java/Others) Memory Limit: 262144/262144 K (Java/Others)Total Submission(s): 99 Accepted Submission(s): 11 Problem Description Once upon a time, there is…
C. Mike and Frog time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output Mike has a frog and a flower. His frog is named Xaniar and his flower is named Abol. Initially(at time 0), height of Xaniar…
A frog is crossing a river. The river is divided into x units and at each unit there may or may not exist a stone. The frog can jump on a stone, but it must not jump into the water. Given a list of stones' positions (in units) in sorted ascending ord…
上一节介绍了ZAB协议的内容,本节将从系统模型.问题描述.算法描述和运行分析四方面来深入了解 ZAB 协议. 系统模型 在一个由一组进程 n ={P1,P2,...Pn}组成的分布式系统中,每一个进程都具有各自的存储设备,各进程之间通过相互通信来实现消息的传递.每一个进程都随时有可能会出现一次或多次的崩溃退出,这些进程会在恢复之后再次加人到进程组 n 中去.如果一个进程正常工作,那么我们称该进程处于 UP 状态,如果一个进程崩溃了,那么我们称其处于 DOWN 状态.事实上,当集群中存在过半的处于…
The Troublesome Frog Time Limit: 5000MS Memory Limit: 100000K Total Submissions: 9581 Accepted: 2883 Case Time Limit: 500MS Description In Korea, the naughtiness of the cheonggaeguri, a small frog, is legendary. This is a well-deserved reputation, be…
A frog is crossing a river. The river is divided into x units and at each unit there may or may not exist a stone. The frog can jump on a stone, but it must not jump into the water. Given a list of stones' positions (in units) in sorted ascending ord…
题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=4004 The annual Games in frogs' kingdom started again. The most famous game is the Ironfrog Triathlon. One test in the Ironfrog Triathlon is jumping. This project requires the frog athletes to jump over…
Friendship of Frog Time Limit: 20 Sec Memory Limit: 256 MB 题目连接 http://acm.hdu.edu.cn/showproblem.php?pid=5578 Description N frogs from different countries are standing in a line. Each country is represented by a lowercase letter. The distance betwee…
Raft.Zab 引言 <分布式系统理论进阶 - Paxos>介绍了一致性协议Paxos,今天我们来学习另外两个常见的一致性协议--Raft和Zab.通过与Paxos对比,了解Raft和Zab的核心思想.加深对一致性协议的认识. Raft Paxos偏向于理论.对如何应用到工程实践提及较少.理解的难度加上现实的骨感,在生产环境中基于Paxos实现一个正确的分布式系统非常难[1]: There are significant gaps between the description of the…
Eat that Frog,中文翻译过来就是“吃掉那只青蛙”.不过这里并不是讨论怎么去吃青蛙,而是一种高效的方法. Eat that Frog是Brian Tracy写的一本书(推荐阅读).这是一个很好的方法去提高效率,也是我最喜欢的方法(没有之一).Eat that Frog的核心理念是在每天一开始就去做你一天中最重要.最困难的任务,然后接下来的任务就可以很容易的被完成.而且这么做还有另外一个好处——防止拖延,就算再差的结果也不怕——每天先做最重要.最困难的任务(最重要的任务通常是能促进你长期…
Mr. Frog's Game Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 277 Accepted Submission(s): 192 Problem Description One day, Mr. Frog is playing Link Game (Lian Lian Kan in Chinese).In this g…
