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.
滴滴发布 2026 年春节出行数据:低线城市异地打车上涨 95%,入境订单同比增长 74%
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第六十三条 违反本法有关规定,扰乱实名注册等制度,扰乱网络秩序,不落实网络犯罪防治义务,导致他人被网络犯罪侵害造成损失的,按照其过错依法承担民事责任。