Open-air shopping malls Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 2458    Accepted Submission(s): 906 Problem Description The city of M is a famous shopping city and its open-air shopping…

纯粹是为了改进牛吃草里的两圆交模板= =. 代码如下: #include <stdio.h> #include <algorithm> #include <string.h> #include <vector> #include <math.h> using namespace std; + ; typedef long long ll; ; const double pi = acos(-1.0); ; struct circle { doub…

Problem Description In the unimaginable popular DotA game, a hero Naga Siren, also known as Slithice, has a very powerful skill: Song of the Siren, Slithice’s charming song draws all of the nearby enemies into deep sleep. Now iSea meet a group of ver…

pro:二维平面上,给点N个导弹的初始位置,射出方向,速度.问你是找一点,可以从这一点向任意方向发出拦截导弹,速度未V,最小化最大拦截导弹的时间.  如果要拦截一个导弹,必须在导弹发射之后才可以发射拦截导弹. 题意满足V>max(v导弹). sol:由于V>vmax,所以有二分的性质,那么这道题其实是个水题,(开始没注意到这个条件,一直不知道怎么去做): N个导弹,我们把导弹的目的地内V*time的圆画出来,拦截导弹的发射位置在这个圆内,如果N个圆有交点,说明合法. 由于V>xmax,所…

链接 枚举伞的圆心,最多只有20个,因为必须与某个现有的圆心重合. 然后再二分半径就可以了. #include <iostream> #include<cstdio> #include<cstring> #include<algorithm> #include<stdlib.h> #include<vector> #include<cmath> #include<queue> #include<set&g…

Description The city of M is a famous shopping city and its open-air shopping malls are extremely attractive. During the tourist seasons, thousands of people crowded into these shopping malls and enjoy the vary-different shopping. Unfortunately, the…

Description The city of M is a famous shopping city and its open-air shopping malls are extremely attractive. During the tourist seasons, thousands of people crowded into these shopping malls and enjoy the vary-different shopping. Unfortunately, the…

题目链接: POJ:id=3831" target="_blank">http://poj.org/problem?id=3831 HDU:http://acm.hdu.edu.cn/showproblem.php?pid=3264 Description The city of M is a famous shopping city and its open-air shopping malls are extremely attractive. During the…

Open-air shopping malls Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 2344    Accepted Submission(s): 866 Problem Description The city of M is a famous shopping city and its open-air shopping…

Open-air shopping malls Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 1822    Accepted Submission(s): 651 Problem Description The city of M is a famous shopping city and its open-air shopping…