题目链接:http://poj.org/problem?id=2236 题意:给你n台计算机的坐标.d是可通信的最大距离.有两个操作. 1.O p 表示修复计算机p. 2.S p q表示询问pq是否能够通信. 题解:并查集的提升.把距离考虑在判断内.如果修复了p就对当前集合做一个并操作.查找的时候直接判断父亲是不是共同的即可. 代码: #include <iostream> #include <cstdio> #include <cstring> #include &l…

POJ 2236 Wireless Network http://poj.org/problem?id=2236 题目大意: 给你N台损坏的电脑坐标,这些电脑只能与不超过距离d的电脑通信,但如果x和y均能C通信,则x和y可以通信.现在给出若干个操作, O p 代表修复编号为p的电脑 S p q代表询问p和q是不是能通信. 思路: 并查集即可.. 如果修复了一台电脑,则把与它相连距离不超过d的且修复了的放在一个集合里面. #include<cstdio> #include<cstring&…

Description Georgia and Bob decide to play a self-invented game. They draw a row of grids on paper, number the grids from left to right by 1, 2, 3, ..., and place N chessmen on different grids, as shown in the following figure for example: Georgia an…

Description 有两堆石子,数量任意,可以不同.游戏开始由两个人轮流取石子.游戏规定,每次有两种不同的取法,一是可以在任意的一堆中取走任意多的石子:二是可以在两堆中同时取走相同数量的石子.最后把石子全部取完者为胜者.现在给出初始的两堆石子的数目,如果轮到你先取,假设双方都采取最好的策略,问最后你是胜者还是败者. Input 输入包含若干行,表示若干种石子的初始情况,其中每一行包含两个非负整数a和b,表示两堆石子的数目,a和b都不大于1,000,000,000. Output 输出对应也有…

[BZOJ1146][CTSC2008]网络管理Network Description M公司是一个非常庞大的跨国公司,在许多国家都设有它的下属分支机构或部门.为了让分布在世界各地的N个部门之间协同工作,公司搭建了一个连接整个公司的通信网络.该网络的结构由N个路由器和N-1条高速光缆组成.每个部门都有一个专属的路由器,部门局域网内的所有机器都联向这个路由器,然后再通过这个通信子网与其他部门进行通信联络.该网络结构保证网络中的任意两个路由器之间都存在一条直接或间接路径以进行通信. 高速光缆的数据传…

Wireless Network Time Limit: 10000MS   Memory Limit: 65536K Total Submissions: 16832   Accepted: 7068 Description An earthquake takes place in Southeast Asia. The ACM (Asia Cooperated Medical team) have set up a wireless network with the lap computer…

Wireless Network Time Limit: 10000MS   Memory Limit: 65536K Total Submissions: 25022   Accepted: 10399 Description An earthquake takes place in Southeast Asia. The ACM (Asia Cooperated Medical team) have set up a wireless network with the lap compute…

Wireless Network Time Limit: 10000MS   Memory Limit: 65536K Total Submissions: 16065   Accepted: 6778 Description An earthquake takes place in Southeast Asia. The ACM (Asia Cooperated Medical team) have set up a wireless network with the lap computer…

传送门  Wireless Network Time Limit: 10000MS   Memory Limit: 65536K Total Submissions: 24513   Accepted: 10227 Description An earthquake takes place in Southeast Asia. The ACM (Asia Cooperated Medical team) have set up a wireless network with the lap co…

Wireless Network Time Limit: 10000MS   Memory Limit: 65536K Total Submissions: 18066   Accepted: 7618 Description An earthquake takes place in Southeast Asia. The ACM (Asia Cooperated Medical team) have set up a wireless network with the lap computer…