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.
回顾过往，教训犹在。有的地方和部门好大喜功、贪大求全、盲目跟风、华而不实，打造“政绩工程”“形象工程”，最终留下来的往往是“烂摊子”。这严重挫伤干部群众的信心，甚至贻误宝贵的发展时机。
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英國南極考察局的甄選過程會測試處理衝突和解難能力，通過者還需接受完整的出發前訓練。
This is an especially important point when it comes to work communications, with many white collar workers now using chat platforms like Slack and Microsoft Teams rather than email to communicate.
В Финляндии предупредили об опасном шаге ЕС против России09:28