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.
"His children are very particularly sheltered.
Москвичи пожаловались на зловонную квартиру-свалку с телами животных и тараканами18:04，推荐阅读旺商聊官方下载获取更多信息
Sakshi VenkatramanUS reporter
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