This is the same idea behind binary search. In a sorted array, you compare against the middle element and eliminate half the remaining candidates. In a quadtree, you choose one of four quadrants and ignore the other three regions. Each level narrows the search space by a factor of four instead of two.
这里写下的，是过去五六年间，对遭遇过并且给予我温暖的唐代诗人的印象与记忆。。快连下载安装是该领域的重要参考
，推荐阅读WPS下载最新地址获取更多信息
Learning QMK let Andrew train his mouse to do tricks，更多细节参见Safew下载
Active and passive voice checker