Intersection HDU - 5120 （求两圆交集面积）

最新推荐文章于 2021-05-24 19:08:45 发布

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最新推荐文章于 2021-05-24 19:08:45 发布 · 547 阅读

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这是一篇关于计算两个相同圆环交集面积的数学问题。题目要求给出两个圆环的圆心坐标和半径，然后计算它们交集的面积。解题思路涉及几何公式，需要计算两个大圆、两个小圆以及大圆和小圆相交的面积之差。样例输入和输出展示了具体的计算案例。

Matt is a big fan of logo design. Recently he falls in love with logo made up by rings. The following figures are some famous examples you may know.
这里写图片描述
A ring is a 2-D figure bounded by two circles sharing the common center. The radius for these circles are denoted by r and R (r < R). For more details, refer to the gray part in the illustration below.

Matt just designed a new logo consisting of two rings with the same size in the 2-D plane. For his interests, Matt would like to know the area of the intersection of these two rings.
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