Author(s): Edward Kim, Jason Hattrick-Simpers
palette: “soft layered hues”
，更多细节参见同城约会
await writeToStorage(forStorage);
湖北宜昌市，三峡大坝及三峡电站输电设施。
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.