http://poj.org/problem?id=1144 题意:给你一些点,某些点直接有边,并且是无向边,求有多少个点是割点 割点:就是在图中,去掉一个点,无向图会构成多个子图,这就是割点 Tarjan算法求割点的办法 如果该点为根,那么它的子树必须要大于1 如果该点不为根,那么当low[v]>=dnf[u]时,为割点 Low[v]>=dnf[u]也就是说明U的子孙点只能通过U点访问U的祖先点 #include <stdio.h> #include <stack>…

1144. The Emperor's Riddle Time limit: 1.0 secondMemory limit: 4 MB Background In the olden times there was a young emperor who was the bravest, wisest, richest, most handsome in the whole world. He had proven himself in endless of battles, quests, a…

Network Time Limit: 1000MS   Memory Limit: 10000K Total Submissions: 8797   Accepted: 4116 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 .…

Network Time Limit: 1000MS   Memory Limit: 10000K Total Submissions: 12707   Accepted: 5835 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…

题目链接:poj 1144 题意就是说有 n(标号为 1 ~ n)个网点连接成的一个网络,critical places 表示删去后使得图不连通的顶点,也就是割顶,求图中割顶的个数. 直接上大白书上的模板即可,只是输入也有点卡人,我竟然傻傻的用手写的输入挂来处理,看了别人的博客才知道用 scanf("%s") 即可,因为 scanf("%s") 不会读入空格,再适当处理下即可. 我的代码是: #include<cstdio> #include<cs…

题目链接: http://poj.org/problem?id=1144 思路分析:该问题要求求出无向联通图中的割点数目,使用Tarjan算法即可求出无向联通图中的所有的割点,算法复杂度为O(|V| + |E|): 代码如下: #include <cstdio> #include <vector> #include <cstring> #include <iostream> using namespace std; + ; + ; char str[MAX_…

1144 The Missing Number (20 分)   Given N integers, you are supposed to find the smallest positive integer that is NOT in the given list. Input Specification: Each input file contains one test case. For each case, the first line gives a positive integ…

题目链接:http://poj.org/problem?id=1144 描述 一个电话线公司(简称TLC)正在建立一个新的电话线缆网络.他们连接了若干个地点分别从1到N编号.没有两个地点有相同的号码.这些线是双向的并且能使两个地点保持通讯.每个地点的线都终结于电话交换机.每个地点都有一个电话交换机.从每个地点都能通过线缆到达其他任意的地点,然而它并不需要直接连接,它可以通过若干个交换机来到达目的地.有时候某个地点供电出问题时,交换机就会停止工作.TLC的工作人员意识到,除非这个地点是不可达的,否…

http://acm.zcmu.edu.cn/JudgeOnline/problem.php?id=1894 题意: 有M个鹰蛋,N层楼,鹰蛋的硬度是E,也就是说在1~E层楼扔下去不会碎,E+1层楼扔下去会碎. 给定M,N,问最坏情况下至少几次能得到E的具体的值.(E可能为0) ①n<=100. ②n<=1000. ③n<=100000. ④n<=1000000. ⑤n<=1000000000.   推荐学习资料: 朱晨光IOI2004集训队论文 从<鹰蛋>一题浅…

题目链接:http://ac.jobdu.com/problem.php?pid=1144 详解链接:https://github.com/zpfbuaa/JobduInCPlusPlus 参考代码: // // 1144 Freckles.cpp // Jobdu // // Created by PengFei_Zheng on 18/04/2017. // Copyright © 2017 PengFei_Zheng. All rights reserved. // #include <s…