首先通过随机增量法求出最小覆盖圆,作为答案的上界. 然后二分答案,检验的时候枚举每个点作为原点,求出其他每个点被包括在圆内的角度区间,然后扫描线即可. 时间复杂度$O(Tn^2\log n)$. #include<cstdio> #include<cmath> #include<algorithm> #include<cstdlib> #define N 510 using namespace std; const double PI=acos(-1.0),…

Search GO 说明:输入题号直接进入相应题目,如需搜索含数字的题目,请在关键词前加单引号 Problem ID Title Source AC Submit Y 1000 A+B Problem 10983 18765 Y 1036 [ZJOI2008]树的统计Count 5293 13132 Y 1588 [HNOI2002]营业额统计 5056 13607 1001 [BeiJing2006]狼抓兔子 4526 18386 Y 2002 [Hnoi2010]Bounce 弹飞绵羊 43…

Characteristics of dipole antenna. %% % characteristics of dipole antenna % author : Leon % email:yangli0534@yahoo.com % url : www.cnblogs.com/hiramlee0534 %% close all; clear all; clc; global k; global l; M = 50;% numbers pattern of different length…

Reference : 1. wikipedia The dipole antenna is the simplest and most widely used class of antenna.It consists of two identical conductive elements such as metal wires or rods, which are usually bilaterally symmetrical.Each side of the feedline to the…

Antenna Placement Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 5645 Accepted: 2825 Description The Global Aerial Research Centre has been allotted the task of building the fifth generation of mobile phone nets in Sweden. The most striki…

Antenna Placement Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 6991   Accepted: 3466 Description The Global Aerial Research Centre has been allotted the task of building the fifth generation of mobile phone nets in Sweden. The most st…

Antenna Placement Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 7329   Accepted: 3635 Description The Global Aerial Research Centre has been allotted the task of building the fifth generation of mobile phone nets in Sweden. The most st…

Antenna Placement Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 7574 Accepted: 3762 Description The Global Aerial Research Centre has been allotted the task of building the fifth generation of mobile phone nets in Sweden. The most striki…

Antenna Placement DescriptionThe Global Aerial Research Centre has been allotted the task of building the fifth generation of mobile phone nets in Sweden. The most striking reason why they got the job, is their discovery of a new, highly noise resist…

http://poj.org/problem?id=3020 Antenna Placement Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 7565   Accepted: 3758 Description The Global Aerial Research Centre has been allotted the task of building the fifth generation of mobile ph…