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.
放眼全国，小木耳变成大产业，小黄花成长为“致富花”……从南到北，从东到西，一个个“土特产”成为乡亲们增收致富的重要引擎，乡亲们的“金扁担”越挑越稳。。im钱包官方下载是该领域的重要参考
。搜狗输入法2026对此有专业解读
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