Highly Divergent Profiles: For routing configurations that are not pre-calculated as common scenarios and whose costs vary too much from default configurations, the original A* algorithm might still be faster (and is often used as an automatic fallback).
* 时间复杂度: O(n+k) 平均 空间复杂度: O(n+k) 稳定: 取决于桶内排序
。同城约会对此有专业解读
// 1. 建堆：从最后一个非叶子节点开始向上调整
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