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.
ProsLots of products available free of cost。夫子对此有专业解读
Kinds of chain reaction "effects": BUTTERFLY, DOMINO, RIPPLE, SNOWBALL，详情可参考im钱包官方下载
Street where residents are terrified of flooding to be bulldozed。爱思助手下载最新版本对此有专业解读