AOE网上的关键路径Time Limit: 1000ms Memory limit: 65536K有疑问?点这里^_^题目描写叙述 一个无环的有向图称为无环图(Directed Acyclic Graph),简称DAG图。 AOE(Activity On Edge)网:顾名思义,用边表示活动的网,当...
分类:
其他好文 时间:
2015-05-01 19:56:11
阅读次数:
200
Greg has a weighed directed graph, consisting of n vertices. In this graph any pair of distinct vertices has an edge between them in both directions. Greg loves playing with the graph and now he has in...
分类:
其他好文 时间:
2015-04-27 15:17:42
阅读次数:
112
Given an directed graph, a topological order of the graph nodes is defined as follow:For each directed edge A-->B in graph, A must before B in the ord...
分类:
其他好文 时间:
2015-04-16 13:48:58
阅读次数:
253
有向无环图:无环的有向图,简称 DAG (Directed Acycline Graph) 图。一个有向图的生成树是一个有向树,一个非连通有向图的若干强连通分量生成若干有向树,这些有向数形成生成森林。在工程计划和管理方面的应用除最简单的情况之外,几乎所有的工程都可分为若干个称作“活动”的子工程,并且...
分类:
编程语言 时间:
2015-04-14 00:35:20
阅读次数:
149
DescriptionGiven a directed graph containing n vertice (numbered from 1 to n) and m edges. Can you tell us how many different Hamiltonian Cycles are t...
分类:
其他好文 时间:
2015-04-06 21:34:45
阅读次数:
144
拓扑排序
对一个有向无环图(Directed Acyclic Graph简称DAG)G进行拓扑排序,是将G中所有顶点排成一个线性序列,使得图中任意一对顶点u和v,若边(u,v)∈E(G),则u在线性序列中出现在v之前。
一个有向图无法拓扑排序时只有一种情况:该有向图中存在环。下面给出简单的判定有向图是否可拓扑排序的代码:
题意:给你一个N点和M条有向边的图,问...
分类:
编程语言 时间:
2015-04-01 17:38:34
阅读次数:
182
http://acm.hdu.edu.cn/showproblem.php?pid=5195
Problem Description
A topological sort or topological ordering of a directed graph is a linear ordering of its vertices such that for every d...
分类:
其他好文 时间:
2015-03-31 12:58:17
阅读次数:
142
练习4-3原文Exercise 4.3. Rewrite eval so that the dispatch is done in data-directed style. Compare this with the datadirected differentiation procedure of exercise 2.73. (You may use the car of a compound...
分类:
其他好文 时间:
2015-03-30 09:33:38
阅读次数:
167
图 图可以分为有向图(directed graph)和无向图(undirected graph)。 每个顶点都临界的无向图为完全图(complete graph)。如果无向图G的顶点集V可以划分为V1,V2,是的对(u,v)属于E有u属于V1,v属于V2,则称图为二分图(bipartite gr.....
分类:
其他好文 时间:
2015-03-13 16:00:19
阅读次数:
183
一、概述 对一个有向无环图(Directed Acyclic Graph简称DAG)G进行拓扑排序,是将G中全部顶点排成一个线性序列,使得图中随意一对顶点u和v,若 ∈E(G),则u在线性序列中出如今v之前。 通常,这种线性序列称为满足拓扑次序(TopoiSicai Order)的序列,简称拓扑.....
分类:
编程语言 时间:
2015-03-11 19:34:04
阅读次数:
185