1411 问题 T: 关于圆的面积

时间限制: 1s 内存限制: 128MB 提交: 290 解决: 94
题目描述

给定两个圆的圆心O1(x1,y1),O2(x2,y2)和两圆的半径R1,R2 计算两个圆相交的面积

输入

第一行输入测试用例个数 第二行输入6个实数x1 y1 x2 y2 R1 R2

输出

两个圆相交的面积(结果保留三位小数)

样例输入
1
0 0 2 2 1 1
样例输出
0.000
提示
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#include<stdio.h>
int main()
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