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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被释放十五天后，她再度逃亡，未与任何人告别，只对她的母亲说了一句：“妈，我走了。”离开为自己哭泣的母亲，她带着三舅，每人花费十盎司黄金，穿越中国南海，十五天后抵达安全之地，旋即飞往德国。她回忆，当时想去美、法的人，须先滞留泰国难民营五年，而她自觉“去哪都行”。，更多细节参见safew官方下载
В России ответили на имитирующие высадку на Украине учения НАТО18:04
In one young couple's diary given to them for the project, Sumaira describes her partner coming home, the dinner she has cooked, the hug in the hallway, the two of them eating together at the table.