SPOJ CIRU The area of the union of circles】的更多相关文章

CIRU - The area of the union of circles no tags  You are given N circles and expected to calculate the area of the union of the circles ! Input The first line is one integer n indicates the number of the circles. (1 <= n <= 1000) Then follows n line…
You are given N circles and expected to calculate the area of the union of the circles ! Input The first line is one integer n indicates the number of the circles. (1 <= n <= 1000) Then follows n lines every line has three integers Xi Yi Ri indicate…
题意:求 m 个圆的并的面积. 析:就是一个板子题,还有要注意圆的半径为0的情况. 代码如下: #pragma comment(linker, "/STACK:1024000000,1024000000") #include <cstdio> #include <string> #include <cstdlib> #include <cmath> #include <iostream> #include <cstrin…
[题目分析] 圆的面积并. 直接Simpson积分,(但是有计算几何的解法,留着flag). simpson积分,如果圆出现了不连续的情况,是很容易出事情的.(脑补一下) 但是没有什么办法,本来就是一种取巧的做法,还能指望这暴力积分做什么. [代码] #include <cstdio> #include <cstring> #include <cmath> #include <cstdlib> #include <map> #include &l…
[题解]CIRU - The area of the union of circles [SP8073] \ 圆的面积并 [Bzoj2178] 传送门: \(\text{CIRU - The area of the union of circles [SP8073]}\) 圆的面积并 \(\text{[Bzoj2178]}\) [题目描述] 给出 \(n\) 个圆的圆心坐标 \((x,y)\) 和半径 \(r\),求它们覆盖的总面积. [输入] 第一行一个整数 \(n\),表示一共有 \(n\)…
Description You are given N circles and expected to calculate the area of the union of the circles ! Input The first line is one integer n indicates the number of the circles. (1 <= n <= 1000) Then follows n lines every line has three integers Xi Yi…
Sphere Online Judge (SPOJ) - Problem CIRU [求圆并的若干种算法,圆并扩展算法]_AekdyCoin的空间_百度空间 参考AekdyCoin的圆并算法解释,根据理解写出的代码.圆并这么多题中,最基础一题. 操作如下: (1)对一个圆,获得所有与其他圆的交点作为时间戳. a.如果这个圆不被其他任何圆覆盖,这个圆直接保留. b.如果Case中有两个完全重合的圆,可以保留标号小(或大)的圆,也只保留这一个. (2)每经过一个时间戳就对计数器加减,如果计数器从0变…
[SPOJ-CIRU]The area of the union of circles/[BZOJ2178]圆的面积并 题目大意: 求\(n(n\le1000)\)个圆的面积并. 思路: 对于一个\(x\),我们可以用线段覆盖的方法求出被圆覆盖的长度.用\(f(x)\)表示横坐标为\(x\)时覆盖的长度,则我们可以对\(f(x)\)积分来得到答案.注意面积不连续的部分要分开求. 源代码: #include<cmath> #include<cstdio> #include<cc…
SPOJ VCIRCLE SPOJ CIRU 两道题都是给出若干圆 就面积并,数据规模和精度要求不同. 求圆面积并有两种常见的方法,一种是Simpson积分,另一种是几何法. 在这里给出几何方法. PS.以下算法基于正方向为逆时针 考虑上图中的蓝色圆,绿色的圆和蓝色的圆交于 A,B 2个交点 ,我们在逆时针系下考虑,那么 可以知道 对于蓝色的圆,它对应的某个 角度区间被覆盖了 假设 区间为 [A, B], 并且角度是按照 圆心到交点的 向量的 极角来定义 (为了方便,我一般都把角度转化到 [0,…
SPOJ CIRU 题意 给出n个圆,求他们覆盖的面积. 解法 自适应Simpson,但需要将圆离散化一下,以保证我们查询的是一个连续的有圆的区间. 奇怪的是我没有离散化,样例都没有过,却把题给A了 代码如下: ( 注意 :要去掉被覆盖的圆,才不会TLE) #include <bits/stdc++.h> using namespace std; const int maxn=1000+5; struct cir { double x,y,r; cir(double x=0.0,double…
Atlantis Time Limit: 1000MS   Memory Limit: 10000K Total Submissions: 21734   Accepted: 8179 Description There are several ancient Greek texts that contain descriptions of the fabled island Atlantis. Some of these texts even include maps of parts of…
Atlantis Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 10599    Accepted Submission(s): 4524 Problem Description There are several ancient Greek texts that contain descriptions of the fabled…
[POJ1151]Atlantis 试题描述 There are several ancient Greek texts that contain descriptions of the fabled island Atlantis. Some of these texts even include maps of parts of the island. But unfortunately, these maps describe different regions of Atlantis.…
题目网址:http://acm.hust.edu.cn/vjudge/contest/view.action?cid=110064#problem/A Description There are several ancient Greek texts that contain descriptions of the fabled island Atlantis. Some of these texts even include maps of parts of the island. But u…
Atlantis Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 6116    Accepted Submission(s): 2677 Problem Description There are several ancient Greek texts that contain descriptions of the fabled i…
[概览] 本文实现如下的程序: 主要步骤如下: 1.在eric6中新建项目,新建窗体 2.(自动打开)进入PyQt5 Desinger,编辑图形界面,保存 3.回到eric 6,对上一步得到的界面文件 union.ui 文件右击,编译窗体,得到 Ui_union.py 文件 4.然后再对 union.ui 文件右击,生成对话框代码,得到 union.py 文件.(在union.py中添加自己的程序逻辑) 5.py2exe打包成exe文件(此步略) [正文] 接[概览]第4步,生成对话框代码时勾选…
http://poj.org/problem?id=1151 经典矩形面积并吧.....很简单我就不说了... 有个很神的地方,我脑残没想到: 将线段变成点啊QAQ这样方便计算了啊 还有个很坑的地方,为毛每一次我精确地计算过空间可就是wa....一改大就ac...我无力了.. #include <cstdio> #include <cstring> #include <cmath> #include <string> #include <iostrea…
Atlantis Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 11551    Accepted Submission(s): 4906 Problem Description There are several ancient Greek texts that contain descriptions of the fabled…
use TEST create table Provinces ( pro_Id ,), pro_Name nvarchar(), pro_Code nvarchar(), pro_PId int ) exec sp_rename 'Provinces', 'Area' select * from Area execute sp_rename 'Area.pro_Id','a_Id','Column' insert into Area values() insert into Area(a_Na…
Atlantis Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 8327    Accepted Submission(s): 3627 Problem Description There are several ancient Greek texts that contain descriptions of the fabled is…
题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=1542 参考网址:http://blog.csdn.net/sunmenggmail/article/details/7984589 Problem Description There are several ancient Greek texts that contain descriptions of the fabled island Atlantis. Some of these texts…
一样的题:HDU 1542 Atlantis Time Limit: 1000MS   Memory Limit: 10000K Total Submissions: 18148   Accepted: 6902 Description There are several ancient Greek texts that contain descriptions of the fabled island Atlantis. Some of these texts even include map…
[题目] Atlantis Problem Description There are several ancient Greek texts that contain descriptions of the fabled island Atlantis. Some of these texts even include maps of parts of the island. But unfortunately, these maps describe different regions of…
Atlantis Time Limit: 1000MS   Memory Limit: 10000K Total Submissions: 16222   Accepted: 6172 Description There are several ancient Greek texts that contain descriptions of the fabled island Atlantis. Some of these texts even include maps of parts of…
题目:http://poj.org/problem?id=1151 Atlantis Time Limit: 1000MS   Memory Limit: 10000K Total Submissions: 20276   Accepted: 7657 Description There are several ancient Greek texts that contain descriptions of the fabled island Atlantis. Some of these te…
Description There are several ancient Greek texts that contain descriptions of the fabled island Atlantis. Some of these texts even include maps of parts of the island. But unfortunately, these maps describe different regions of Atlantis. Your friend…
Atlantis Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 6386    Accepted Submission(s): 2814 Problem Description There are several ancient Greek texts that contain descriptions of the fabled i…
Atlantis Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 7815    Accepted Submission(s): 3420 Problem Description There are several ancient Greek texts that contain descriptions of the fabled i…
Atlantis Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 5932    Accepted Submission(s): 2599 Problem Description There are several ancient Greek texts that contain descriptions of the fabled is…
先看看官方文档:然后附上苏的博客链接http://bigbrothersue.com/index.php/2017/12/20/person-re-id/ The Market-1501 dataset is collected in front of a supermarket in Tsinghua University. A total of six cameras are used, including 5 high-resolution cameras, and one low-res…