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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美以聯手攻擊伊朗致哈梅內伊喪生以及伊朗的報復性打擊——我們目前知道什麼？。业内人士推荐91视频作为进阶阅读
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