The dashed circle shows the current best distance. As the algorithm finds closer points, the circle shrinks, which causes more subtrees to fail the "could contain a closer point?" test and get pruned. The search usually gets cheaper as it progresses.
（一）已满十四周岁不满十六周岁的；
。heLLoword翻译官方下载对此有专业解读
I tried to solve it somewhat elegantly:，详情可参考51吃瓜
* @param {number[]} nums 代表一排人的身高数组