无向图求割点 UVA 315

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无向图求割点 UVA 315 Network

输入数据处理正确其余的就是套强联通的模板了 #include <iostream> #include <cstdlib> #include <cstdio> #include <algorithm> #include <vector> #include <queue> #include <cmath> #include <stack> #include <cstring> using namespa…

UVA 315 Network （模板题）(无向图求割点)

<题目链接> 题目大意: 给出一个无向图,求出其中的割点数量. 解题分析: 无向图求割点模板题. 一个顶点u是割点,当且仅当满足 (1) u为树根,且u有多于一个子树. (2) u不为树根,且满足存在(u,v)为树枝边(或称父子边,即u为v在搜索树中的父亲),使得 dfn(u)<=low(v).(也就是说V没办法绕过 u 点到达比 u dfn要小的点) 注:这里所说的树是指,DFS下的搜索树. #include <cstdio> #include <cstring&g…

uva 315 Network（无向图求割点）

https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&page=show_problem&problem=251 Network A Telephone Line Company (TLC) is establishing a new telephone cable network. They are connecting several places numbered by integers…

B - Network---UVA 315（无向图求割点）

A Telephone Line Company (TLC) is establishing a new telephone cable network. They are connecting several places numbered by integers from 1 to N. No two places have the same number. The lines are bidirectional and always connect together two pla…

（连通图模板题无向图求割点）Network --UVA--315（POJ--1144）

链接: https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&page=show_problem&problem=251 http://poj.org/problem?id=1144 http://acm.hust.edu.cn/vjudge/contest/view.action?cid=82833#problem/B 首先输入一个N(多实例,0结束),下面有不超过N行的数,每行的第一个数字代表…

poj 1523"SPF"（无向图求割点）

传送门题意: 有一张联通网络,求出所有的割点: 对于割点 u ,求将 u 删去后,此图有多少个联通子网络: 对于含有割点的,按升序输出: 题解: DFS求割点入门题,不会的戳这里…

poj 1144 Network 无向图求割点

Network Description A Telephone Line Company (TLC) is establishing a new telephone cable network. They are connecting several places numbered by integers from 1 to N . No two places have the same number. The lines are bidirectional and always connect…