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.
南方人物周刊：但是理智上不允许你这样做。
。关于这个话题，im钱包官方下载提供了深入分析
Фото: Amr Alfiky / Reuters
Москвичи пожаловались на зловонную квартиру-свалку с телами животных и тараканами18:04