The tree starts as a single region covering the whole space. As points arrive, they get dropped into the region that contains them. When a region exceeds its capacity (the maximum number of points it can hold before splitting), the region divides into four children, and the existing points get redistributed.
Жители Санкт-Петербурга устроили «крысогон»17:52
，详情可参考51吃瓜
В России ответили на имитирующие высадку на Украине учения НАТО18:04
The Treasury and the Department for Education are reviewing different options to offer relief to those with plan 2 student loans, which often leave graduates in England and Wales paying tens of thousands more than the original loan amount.
。关于这个话题，WPS官方版本下载提供了深入分析
20+ curated newsletters，更多细节参见夫子
NASA astronaut who had medical problem in space breaks silence