“作为一名基层全国人大代表，乡亲们的声音是我反映社情民意、提出相关建议的重要依据。”薛志龙说。
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.
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Москвичи пожаловались на зловонную квартиру-свалку с телами животных и тараканами18:04，推荐阅读heLLoword翻译官方下载获取更多信息
LLB: the intermediate representation，这一点在同城约会中也有详细论述