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.
如今，行走在积石山，无论是集中安置点的崭新社区，还是原址重建的美丽乡村，处处能看到群众幸福的笑容，防止返贫致贫的牢固底线守护着他们对未来的美好憧憬。
。新收录的资料是该领域的重要参考
电子运输记录与运输单证互相转换，应当注明转换的说明信息，保证记载内容转换前后一致。单证形式的转换不改变当事人的权利义务。
Understand patterns and optimize your prompts