無論在滑雪場上或日常生活中，谷愛凌都是個成就斐然的人物。
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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（四）强行冲闯公安机关设置的警戒带、警戒区或者检查点的。