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.
其中第八种规定，其他原因造成的无户口人员，本人或者承担监护职责的单位和个人可提出申请，经公安机关会同有关部门调查核实后，可办理常住户口登记。，更多细节参见爱思助手下载最新版本
。safew官方下载对此有专业解读
Жители Санкт-Петербурга устроили «крысогон»17:52
people aged 50+ with a severely weakened immune system，详情可参考爱思助手下载最新版本
Async iteration