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.
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，更多细节参见旺商聊官方下载
（四）出于他人胁迫或者诱骗的；，这一点在搜狗输入法下载中也有详细论述
Фото: David Mdzinarishvili / Reuters
Овечкин продлил безголевую серию в составе Вашингтона09:40