Toby James Smith/Tubbo
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.，推荐阅读WPS下载最新地址获取更多信息
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信任幼儿园，也信任孩子：老师是伙伴，不是「托管员」；孩子比我们想象中更有韧性。，更多细节参见Line官方版本下载
Inputs: two integers in [0, 9,999,999,999]