Виктория Кондратьева (Редактор отдела «Мир»)
// 原因:先处理右侧元素,把结果存在栈里,供左侧元素直接使用
,详情可参考heLLoword翻译官方下载
For well-distributed points, nearest neighbor search is often near O(logn)O(\log n)O(logn) in practice. In the worst case (all points clustered tightly or along a line), it can degrade to O(n)O(n)O(n), but this is uncommon with typical spatial data.
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