if (left === n - 1) return 0;
if (arr[left] arr[largest]) {
。关于这个话题，一键获取谷歌浏览器下载提供了深入分析
The algorithm maintains a running "best distance" that starts at infinity. As it walks the tree, it checks each visited point and updates the best distance if it finds something closer. Before recursing into a child node, it checks whether the closest possible point in that child's bounding box is farther than the current best. If so, the entire subtree gets pruned.，详情可参考WPS下载最新地址
Again, it depends on the context. If it’s for a one-off event with a lot of people you don’t know, there’s probably no need.。爱思助手下载最新版本对此有专业解读
So, how does OsmAnd use this structure to calculate your route at lightning speed? It's a multi-step process: