Area in Triangle 博客原文地址:http://blog.csdn.net/xuechelingxiao/article/details/40707691 题目大意: 给你一个三角形的三边边长,给你一跟绳子的长度,将绳子放在三角形里围起来的面积最大是多少. 解题思路: 当然能够想到当绳子的长度十分长的时候,绳子能围城的最大面积就是三角形的面积. 当然还能够想到的是当绳子的长度比較短,小于三角形的内接圆的长度时,绳子能围城的面积就是绳子能围成的圆的面积. 那么剩下要计算的就是当绳子长…

Area in Triangle Time Limit: 1000MS   Memory Limit: 30000K Total Submissions: 1674   Accepted: 821 Description Given a triangle field and a rope of a certain length (Figure-1), you are required to use the rope to enclose a region within the field and…

link Description 给出三角形三边长,给出绳长,问绳在三角形内能围成的最大面积.保证绳长 \(\le\) 三角形周长. Solution 首先我们得知道,三角形的内切圆半径就是三角形面积 \(\times 2\) 除以三角形周长. 可以看出,如果绳长 \(\le\) 三角形内切圆周长,那么我们肯定是围成一个圆.否则,我们就会围成下图形状: 考虑计算面积: 可以发现的是图中所指出的形状相等,以及小三角形与大三角形相似.那么我们就可以联立方程,解出小圆的半径,然后就可以算了. Code…

Area Time Limit: 1000MS Memory Limit: 10000K Description You are going to compute the area of a special kind of polygon. One vertex of the polygon is the origin of the orthogonal coordinate system. From this vertex, you may go step by step to the fol…

Given a triangle field and a rope of a certain length (Figure-1), you are required to use the rope to enclose a region within the field and make the region as large as possible. Input The input has several sets of test data. Each set is one line cont…

/* poj 1654 Area 多边形面积 题目意思很简单,但是1000000的point开不了 */ #include<stdio.h> #include<math.h> #include<string.h> const int N=1000000+10; const double eps=1e-8; struct point { double x,y; point(){} point(double a,double b):x(a),y(b){} }; int le…

Area Time Limit: 1000MS   Memory Limit: 10000K Total Submissions: 5861   Accepted: 2612 Description Being well known for its highly innovative products, Merck would definitely be a good target for industrial espionage. To protect its brand-new resear…

Area Time Limit: 1000MS   Memory Limit: 10000K Total Submissions: 5227   Accepted: 2342 Description Being well known for its highly innovative products, Merck would definitely be a good target for industrial espionage. To protect its brand-new resear…

Area Time Limit: 1000MS Memory Limit: 10000K Description Being well known for its highly innovative products, Merck would definitely be a good target for industrial espionage. To protect its brand-new research and development facility the company has…

#include<stdio.h> #include<string.h> #include<iostream> #include<math.h> using namespace std; ]={,,,,,,,-,-,-}; ]={,-,,,-,,,-,,}; ]; __int64 area,x,y,px,py; int main() { int sum,t,tmp,i; cin>>tmp; while(tmp--) { scanf("%…