题意: 给一个图n个点m条边(不一定连通),接下来又q个询问,询问两个点是为“不相连”,“仅有一条路径可达”,“有两条及以上的不同路径可达”三种情况中的哪一种.注:两条以上的路径指的是路径上的点连1个点也不重复. 思路:并查集+tarjan求割点. (1)情况一:先并查集处理,如果两个点从一开始就不连通,直接输出zero (2)情况二和情况三:两点既然连通,那么可能是只有1条路径,比如中间隔着一个割点:也可能有多条路径,比如在同一个双连通分量内.那么直接判断其是否在同一个双连通分量内即可,若在同

Because of the financial crisis, a large number of enterprises go bankrupt. In addition to this, other enterprises, which have trade relation with the bankrup enterprises, are also faced with closing down. Owing to the market collapse, profit decline

<题目连接> 题目大意: 给你一个(保证输入无重边,无自环)无向图,然后有下面Q条询问,每条询问为:问你u点与v点之间有几条(除了首尾两点外,其他点不重复)的路径.如果有0条或1条输出0或1,如果有2条以上,输出”two or more”. 解题分析: 我们可以用并查集判断两点之间是否有路径相连通,如果两点不连通,则直接输出0即可.至于判断两点之间有几条不重复的路径相连,则是通过这两点是否属于同一点双连通分量来判断.不过需要注意的是,我们应该排除只有两个点的点双连通分量这一特殊情况.所以综上,

Financial Crisis 题意:给一个图,包含N ( 3 <= N <= 5000 )个点, M ( 0 <= M <= 10000 )条边 and Q ( 1 <= Q <= 1000 )次查询.查询:两个点是否是点-双连通: 点-双连通:两点至少存在两条"点不重复"的路径:简称双连通(biconnected); 思路:直接调用dfs求割点的算法,其实也是Tarjan发明的,就是在判断出一个割点之后,就把栈S中该双连通分量的所有点(就在栈顶

H - 贪心 Crawling in process... Crawling failed Time Limit:3000MS     Memory Limit:0KB     64bit IO Format:%lld & %llu Submit Status Description     Most financial institutions had become insolvent during financial crisis and went bankrupt or were boug

2020/2/24 经济学人精读笔记7:动乱当道,你还想买LV吗? 标签(空格分隔): 经济学人 Part 1 Luxury goods A tale of two handbags Purveyors of bling ought to be in a bit of a funk these days. Chinese economic prospects are mixed and American retail sales fell unexpectedly in September fo

POJ1144 网络 description: 给出一张\(N\)个点的无向图,求其中割点的个数 data range: \(N\le 100\) solution: 一道模板题(但是读入实在是把我恶心坏了) #include<cstdio> #include<vector> #include<algorithm> #include<iostream> #include<sstream> using namespace std; const in

题目链接:http://acm.hust.edu.cn/vjudge/contest/view.action?cid=87125#problem/E 题目: Description The world financial crisis is quite a subject. Some people are more relaxed while others are quite anxious. John is one of them. He is very concerned about the

第四部分     推理题 1.世界上每个角落的每个人都有立场,都有背景,都有推理性,能推理出一个人语言的真意,才成就了真正的推理能力: 2.换言之,如果你能通过一个人的说话推理出其身份职业,你的推理能力更上一层楼. 一 . 临门一脚 1. “I believe in human ingenuity – that when we decide on a task to be done, no matter how daunting it may seem at the beginning, we

http://www.lightoj.com/volume_showproblem.php?problem=1011 You work in a company which organizes marriages. Marriages are not that easy to be made, so, the job is quite hard for you. The job gets more difficult when people come here and give their bi

Stock Exchange Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 2954   Accepted: 1082 Description The world financial crisis is quite a subject. Some people are more relaxed while others are quite anxious. John is one of them. He is very

 Marriage Ceremonies Time Limit:2000MS     Memory Limit:32768KB     64bit IO Format:%lld & %llu Submit Status Practice LightOJ 1011 Description You work in a company which organizes marriages. Marriages are not that easy to be made, so, the job is qu

http://poj.org/problem?id=3903 Stock Exchange Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 5983   Accepted: 2096 Description The world financial crisis is quite a subject. Some people are more relaxed while others are quite anxious. J

最大上升子序列 Description The world financial crisis is quite a subject. Some people are more relaxed while others are quite anxious. John is one of them. He is very concerned about the evolution of the stock exchange. He follows stock prices every day loo

Problem H. Hell on the MarketsTime Limit: 20 Sec Memory Limit: 256 MB 题目连接 http://acm.hust.edu.cn/vjudge/contest/view.action?cid=86821#problem/H Description Most financial institutions had become insolvent during financial crisis and went bankrupt or

E - LIS Time Limit:1000MS     Memory Limit:65536KB     64bit IO Format:%I64d & %I64u Submit Status Description The world financial crisis is quite a subject. Some people are more relaxed while others are quite anxious. John is one of them. He is very

E - LIS Time Limit:1000MS     Memory Limit:65536KB     64bit IO Format:%I64d & %I64u   Description The world financial crisis is quite a subject. Some people are more relaxed while others are quite anxious. John is one of them. He is very concerned a

Time Limit: 3000MS   Memory Limit: Unknown   64bit IO Format: %lld & %llu Submit Status Description   Most financial institutions had become insolvent during financial crisis and went bankrupt or were bought by larger institutions, usually by banks.

POJ 3903    Stock Exchange  (E - LIS 最长上升子序列) 题目链接:http://acm.hust.edu.cn/vjudge/contest/view.action?cid=87125#problem/E 题目: Description The world financial crisis is quite a subject. Some people are more relaxed while others are quite anxious. John

转载请注明出处:http://blog.csdn.net/u012860063 题目链接:id=3903">http://poj.org/problem?id=3903 Description The world financial crisis is quite a subject. Some people are more relaxed while others are quite anxious. John is one of them. He is very concerned