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.
蚀刻高度不够，防窥区域的角度就会不足，旁边的人努努力还是能够看到屏幕上的文字。
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《星露谷物语》以西式农场为核心，构建了一场对现代性的批判和反思；《桃源村日志》则植根于中国文化，以歌颂平凡生活为主题。，详情可参考同城约会
The Miller High Life Theatre in Milwaukee, Wisconsin, said: "Due to unforeseen circumstances, Steve Martin & Martin Short's show, originally scheduled for Friday, February 27th in Milwaukee, has been postponed."