- 必须通过 lint/typecheck
暂不做：AI 自动代码审核裁决。
，详情可参考safew官方版本下载
How to Start Making Money Online Using CJ Affiliate
The quadtree is the two-dimensional case of a broader family of space-partitioning data structures. Octrees extend the same idea to three dimensions (splitting cubes into eight children), KD-trees use alternating axis-aligned splits (splitting along x, then y, then x again), and R-trees group nearby objects into bounding rectangles. Each variant makes different tradeoffs between construction time, query speed, and update cost.