published=published,
Track the number of clicks
。谷歌浏览器【最新下载地址】是该领域的重要参考
Inside the situation room
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.
gcc -o sort sort.c -Wall -O2