Beckhams seen together in Paris after Brooklyn row
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.
。爱思助手下载最新版本对此有专业解读
思路：倒序遍历 + 单调索引栈（仅存索引），计算下一个高温的间隔天数。栈顶索引 - 当前索引即为等待天数。
（六）居民委员会协助政府开展工作的情况；