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yuan_vc
- 求两圆相交面积 两圆半径分别问ar,br,两圆圆心距为d-Seeking two circles intersect area radius Q ar, br, two round Heart distance is d if ar+ br < d return 0 two circles from else if (fabs (ar-br),> d return area (min (ar , br)) of two circles covering else the two