Speaker diarization (up to 4 speakers)
从后向前扫描已排序部分，找到插入位置，元素后移腾出空间
，这一点在91视频中也有详细论述
所以张清森突发奇想，做了一个几乎不算创新但特有效的改动，把线材做成 0.5米，1米，1.5米，2米，3米，5米 等等不同长度，结果自然大受欢迎。
This map illustrates the OsmAnd routing concept. The route starts in the Start Area Cluster (221558), moves to the nearest Border Point, and continues through precomputed Shortcuts across intermediate clusters. It then enters the Finish Area Cluster (221536) via another border point and finishes using local roads. This method speeds up routing by combining local search with efficient inter-cluster shortcuts.