2019年9月16日
Number of Parallelograms CodeForces - 660D （几何）
摘要： Number of Parallelograms "CodeForces 660D " You are given n points on a plane. All the points are distinct and no three of them lie on the same line. 阅读全文
posted @ 2019-09-16 00:29 茄子Min 阅读(233) 评论(0) 推荐(0) 编辑