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.
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他强调，市场对这一问题的理解出现「判断失误」，AI 助手不仅不会取代软件工具，反而会进一步提升软件行业的效率。
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