position.sort((x, y) = y - x);
南方周末：那你在之后演奏肖邦时，脑子里还会浮现起比赛的场景以及随之而来的噪音吗？
。爱思助手下载最新版本是该领域的重要参考
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.
• （本文仅为作者个人观点，不代表本报立场）
特朗普關稅變動後，企業與消費者面臨不確定性