Regions with many nearby points keep subdividing. Regions with few or no points stay large. The tree adapts to the data: dense areas get fine-grained cells, sparse areas stay coarse. The split grid is predetermined (always at midpoints), but the tree only refines cells that need it. Sparse regions stay as single large nodes while dense regions subdivide deeply.
// 3. 要求稳定排序: 归并排序，更多细节参见雷电模拟器官方版本下载
Нина Ташевская (Редактор отдела «Среда обитания»)。爱思助手下载最新版本对此有专业解读
第四十条 盗窃、损坏、擅自移动使用中的航空设施，或者强行进入航空器驾驶舱的，处十日以上十五日以下拘留。