http://poj.org/problem?id=2546 晚上发现鼠标快不行了了!!!鼠标你肿么了,肿么突然就按键不灵了,哭,谁送我一只呀,奖励我舍友一只.哈哈.开玩笑滴~ 舍友大怒说"晚上要把英语做完才去睡觉!" 我也大怒说"晚上要把这题A出来才去睡觉!" 然后我做出来了,他还没,哈哈哈哈,哥哥可以洗洗睡啦~ ----------------------------------------------准备洗洗睡的分割线---------------------…

题目链接 题意 : 给你两个圆的半径和圆心,让你求两个圆相交的面积大小. 思路 : 分三种情况讨论 假设半径小的圆为c1,半径大的圆为c2. c1的半径r1,圆心坐标(x1,y1).c2的半径r2,圆心坐标(x2,y2). d为两圆圆心连线的长度. 相交面积为S d=sqrt((x1-x2)^2+(y1-y2)^2) (1)如果r1+r2<=d 那么两圆相离,相交面积S=0 (2)如果r2-r1>=d 那么半径小的圆内含半径大的圆,那么相交面积为小圆的面积S=pi*r1*r1 (3)既非(1)…

Circular Area Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 5682   Accepted: 2225 Description Your task is to write a program, which, given two circles, calculates the area of their intersection with the accuracy of three digits after…

                                                                            Circular Area                                                        Time Limit: 1000MS  Memory Limit: 65536K   Description Your task is to write a program, which, given two…

题目链接: POJ:http://poj.org/problem? id=2546 ZOJ:problemId=597" target="_blank">http://acm.zju.edu.cn/onlinejudge/showProblem.do?problemId=597 Description Your task is to write a program, which, given two circles, calculates the area of the…

http://poj.org/problem?id=2546 (题目链接) 题意 求两圆的面积交 Solution 一道水题Wa死我了,肯定是昨晚搞太晚的缘故= =. 两圆的位置关系有5种,而这里要求它们的面积交,分三种情况就可以了. 第一,外离和外切,面积为0 第二,内切和内含,面积为较小的圆的面积. 第三,相交.我们可以把它们相交的面积分成两个弓形,进而求这两个弓形的面积.弓形的面积就是扇形的面积减去一个三角形的面积,三角形的面积可以用海伦公式,而对于扇形,我们要用余弦定理先求出它的圆心角再…

The area Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 6524    Accepted Submission(s): 4578题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=1071 Problem Description Ignatius bought a land last w…

Description After a day trip with his friend Dick, Harry noticed a strange pattern of tiny holes in the door of his SUV. The local American Tire store sells fiberglass patching material only in square sheets. What is the smallest patch that Harry nee…

题链:http://poj.org/problem? id=3168 Barn Expansion Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 2087   Accepted: 544 Description Farmer John has N (1 <= N <= 25,000) rectangular barns on his farm, all with sides parallel to the X and…

#include<iostream> #include<numeric> #include<iomanip> #include<algorithm> #include<cmath> using namespace std; int main() { //freopen("acm.acm","r",stdin); double x1; double y1; double r1; double x2; doub…