HBC51068dd爱整齐,贪心,枚举,前缀和Random Point in Triangle题解

别敷衍了所有 算法基础篇 43 0
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). Picking a point P uniformly in triangle ABC, he wants to know the expectation value. 36×E. It can be proved that it is always an integer.

Bobo has a triangle ABC with A(x_1, y_1), B(x_2, y_2) A(x 1 ​ ,y 1 ​ ),B(x 2 ​ ,y 2 ​ ) and C(x_3, y_3) C(x 3 ​ ,y 3 ​ ). Picking a point P uniformly in triangle ABC, he wants to know the expectation value E = max{S_{PAB}, S_{PBC}, S_{PCA}} E=max{S PAB ​ ,S PBC ​ ,S PCA ​ } where S_{XYZ} S XYZ ​ denotes the area of triangle XYZ. Print the value of 36 times E 36×E. It can be proved that it is always an integer.

HBC51068dd爱整齐,贪心,枚举,前缀和Random Point in Triangle题解
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标签: HBC51068dd爱整齐 贪心 枚举 前缀和Random Point in Triangle题解