Quoit Design 分治法的一个题

最新推荐文章于 2021-03-22 21:08:16 发布

十指流玉

最新推荐文章于 2021-03-22 21:08:16 发布

阅读量445

点赞数

分类专栏：练习文章标签：分治

本文链接：https://blog.youkuaiyun.com/qq_41886231/article/details/97895919

版权

目前对于分治法的理解还不是很透彻，今天接触了这样一个题，不太明白，看了网上的解析后，自己总结一下．

Description

Have you ever played quoit in a playground? Quoit is a game in which flat rings are pitched at some toys, with all the toys encircled awarded.
In the field of Cyberground, the position of each toy is fixed, and the ring is carefully designed so it can only encircle one toy at a time. On the other hand, to make the game look more attractive, the ring is designed to have the largest radius. Given a configuration of the field, you are supposed to find the radius of such a ring.

Assume that all the toys are points on a plane. A point is encircled by the ring if the distance between the point and the center of the ring is strictly less than the radius of the ring. If two toys are placed at the same point, the radius of the ring is considered to be 0.

Input

The input consists of several test cases. For each case, the first line con