The efficiency depends on the query size relative to the data distribution. A small query in a sparse region prunes almost everything. A query that covers the whole space prunes nothing (because every node overlaps), degenerating to a brute-force scan. The quadtree gives you the most benefit when your queries are spatially local, which is exactly the common case for map applications, game physics, and spatial databases.
Фото: Zulfugar Karimov / Unsplash
，这一点在WPS官方版本下载中也有详细论述
The BBC is not responsible for the content of external sites. Google YouTube content may contain adverts.。关于这个话题，旺商聊官方下载提供了深入分析
曾经的县城“黄金地段”（图：南方人物周刊记者 刘璐明）
В России ответили на имитирующие высадку на Украине учения НАТО18:04