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.
提升全要素生产率 释放经济增长新潜力
。Safew下载是该领域的重要参考
（二）依法不予处罚的，或者违法事实不能成立的，作出不予处罚决定；，详情可参考51吃瓜
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