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图的概念有点多,在此只讨论最基础的内容,所以选择比较薄的高教版<数据结构>. 1.4 非线性数据结构--图 ........................................................................................................... 101 1.4.1 图的基本概念.......................................................................…
把博客的算法过一遍,我的天呐多得很,爱咋咋地! 未来可考虑下博弈算法. 基本的编程陷阱:[c++] 面试题之犄角旮旯 第壹章[有必要添加Python] 基本的算法思想:[Algorithm] 面试题之犄角旮旯 第贰章[基础算法思想] 基本的练手习题:[LeetCode] 面试题之犄角旮旯 第叁章[综合性算法问题] 彩色PDF的讲义:CMU: Parallel and Sequential Data Structures and Algorithms 一.数据结构 Outline 容器(Conta…
@http://www-cs-faculty.stanford.edu/people/karpathy/cvpr2015papers/ CVPR 2015 papers (in nicer format than this) maintained by @karpathy NEW: This year I also embedded the (1,2-gram) tfidf vectors of all papers with t-sne and placed them in an interf…
一.背景 全文根据<算法-第四版>,Dijkstra算法.我们把问题抽象为2步:1.数据结构抽象   2.实现 二.算法分析 2.1 数据结构 顶点+边->图.注意:Dijkstra算法的限定: 1.边有权重,且非负 2.边有向 2.1.1 加权有向边 DirectedEdge,API抽象如下: 方法 描述 DirectedEdge(int v, int w, double weight)  构造边 double weight()  边的权重 int from()  边的起点 int t…
Given a Weighted Directed Acyclic Graph and a source vertex in the graph, find the shortest paths from given source to all other vertices. For a general weighted graph, we can calculate single source shortest distances in O(VE) time using Bellman–For…
1. 从细菌的趋化性谈起 0x1:物质化学浓度梯度 类似于概率分布中概率密度的概念.在溶液中存在不同的浓度区域. 如放一颗糖在水盆里,糖慢慢溶于水,糖附近的水含糖量比远离糖的水含糖量要高,也就是糖附近的水糖的浓度高,离糖越远的水糖的浓度越低. 这种浓度的渐减(反方向就是渐增)叫做浓度梯度.可以用单位距离内浓度的变化值来表示.同样,温度.电场强度.磁场强度.重力场.都有梯度的. 化学溶液的浓度梯度的概念和概率分布的梯度类似,都代表了值下降的方向. 0x2:趋化性细菌的运动方式 细菌趋化性是指有运动…
1.定义 A graph consists of a set of vertices V and a set of edges E. Each edge is a pair (v, w), where v,w belong to V. 路径 A path in a graph is a sequence of vertices w1, w2, ... ,wn. 长度 The length of such a path is the number of edges on the path, whi…
uva 10803 计算从任何一个点到图中的另一个点经历的途中必须每隔10千米 都必须有一个点然后就这样 floy 及解决了 **************************************************************************************************************************** #include <iostream> #include<cstdio> #include<string…
A graph is a data structure comprised of a set of nodes, also known as vertices, and a set of edges. Each node in a graph may point to any other node in the graph. This is very useful for things like describing networks, creating related nonhierarchi…
Clone an undirected graph. Each node in the graph contains a label and a list of its neighbors. OJ's undirected graph serialization: Nodes are labeled uniquely. We use # as a separator for each node, and , as a separator for node label and each neigh…