Nature, Published online: 24 February 2026; doi:10.1038/d41586-026-00592-y
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。下载安装 谷歌浏览器 开启极速安全的 上网之旅。是该领域的重要参考
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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.