<1,keystone安装配置> 1,yum -y install openstack-keystone python-keystoneclient; 2,配置实用mysql存储keytone componts 配置信息 /etc/keystone/keystone.conf connection = mysql://ruiy:321@byruiy.cc/keystone 创建数据库用户赋予合适权限; 3,Define an authorization token to use as a sh
Description Tom is a commander, his task is destroying his enemy’s transportation system. Let’s represent his enemy’s transportation system as a simple directed graph G with n nodes and m edges. Each node is a city and each directed edge is a directe
An undirected, connected graph of N nodes (labeled 0, 1, 2, ..., N-1) is given as graph. graph.length = N, and j != i is in the list graph[i] exactly once, if and only if nodes i and j are connected. Return the length of the shortest path that visits
一.模型介绍 pagerank算法主要是根据网页中被链接数用来给网页进行重要性排名. 1.1模型解释 模型核心: a. 如果多个网页指向某个网页A,则网页A的排名较高. b. 如果排名高A的网页指向某个网页B,则网页B的排名也较高,即网页B的排名受指向其的网页的排名的影响. 名词解释: (1)出链如果在网页A中附加了网页B的超链接B-Link,用户浏览网页A时可以点击B-Link然后进入网页B.上面这种A附有B-Link这种情况表示A出链B.可知,网页A也可以出链C,如果A中也附件了网页C的超链
I Curse Myself Time Limit: 8000/4000 MS (Java/Others) Memory Limit: 131072/131072 K (Java/Others)Total Submission(s): 2266 Accepted Submission(s): 544 Problem Description There is a connected undirected graph with weights on its edges. It is gu
永无乡包含 n 座岛,编号从 1 到 n,每座岛都有自己的独一无二的重要度,按照重要度可 以将这 n 座岛排名,名次用 1 到 n 来表示.某些岛之间由巨大的桥连接,通过桥可以从一个岛 到达另一个岛.如果从岛 a 出发经过若干座(含 0 座)桥可以到达岛 b,则称岛 a 和岛 b 是连 通的.现在有两种操作:B x y 表示在岛 x 与岛 y 之间修建一座新桥.Q x k 表示询问当前与岛 x连通的所有岛中第 k 重要的是哪座岛,即所有与岛 x 连通的岛中重要度排名第 k 小的岛是哪 座,请你输
(转自:http://www.jb51.net/article/291.htm) Ajax内部交流文档一.使用Ajax的主要原因 1.通过适当的Ajax应用达到更好的用户体验: 2.把以前的一些服务器负担的工作转嫁到客户端,利于客户端闲置的处理能力来处理,减轻服务器和带宽的负担,从而达到节约ISP的空间及带宽租用成本的目的. 二.引用 Ajax这个概念的最早提出者Jesse James Garrett认为: Ajax是Asynchronous JavaScript and XML的缩写. Aja
# -*- coding: cp936 -*- import random import networkx as nx from networkx.generators.classic import empty_graph def powerlaw_cluster_graph(n, m, p, seed=None): """Holme and Kim algorithm for growing graphs with powerlaw degree distribution
每个job被划分为多个stage.划分stage的一个主要依据是当前计算因子的输入是否是确定的,如果是则将其分在同一个stage,从而避免多个stage之间的消息传递开销. http://spark.apache.org/docs/latest/rdd-programming-guide.html [Spark actions are executed through a set of stages, separated by distributed “shuffle” operations.
