Раскрыты подробности похищения ребенка в Смоленске09:27
Notice how the highlighted region shrinks at each step. The algorithm never examines points outside the narrowing window. In a balanced tree with nnn points, this takes about log4(n)\log_4(n)log4(n) steps. For a million points, that's roughly 10 steps instead of a million comparisons.
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FontPairsHigh (= 0.7)% highZapfino600.0%Didot1042019.2%Avenir Next Condensed761519.7%Futura591220.3%,更多细节参见safew官方版本下载
这种方法实现简单,但需要在每个 iOS 调用点手动处理类型转换。