Estimated shortcuts: ~91 million (a manageable number for global routing)
* 核心思路：单调递减栈（找「上一个比当前价格大的元素索引」），时间复杂度O(n)，空间复杂度O(n)。快连下载安装对此有专业解读
，推荐阅读Line官方版本下载获取更多信息
19:37, 27 февраля 2026Культура
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.，更多细节参见WPS官方版本下载