The algorithm maintains a running "best distance" that starts at infinity. As it walks the tree, it checks each visited point and updates the best distance if it finds something closer. Before recursing into a child node, it checks whether the closest possible point in that child's bounding box is farther than the current best. If so, the entire subtree gets pruned.
其实还有一个有意思的点是Jack Dorsey的X社交媒体，唯三关注的人分别是：Elon Musk、Edward Snowden和Stella Assange。这或许能帮助我们了解Jack Dorsey是一个怎样的人。
，更多细节参见91视频
ВсеСледствие и судКриминалПолиция и спецслужбыПреступная Россия
Платон Щукин (Редактор отдела «Экономика»)