for (const url of urls) {
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.
，更多细节参见safew官方下载
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Deadly border fighting breaks out between Pakistan and Afghanistan
一切的故事，皆来自小麦的“超能力”：经碾磨激活的谷蛋白和醇溶蛋白，在遇水后形成面筋网络，赋予面团弹性和延展性，造就了面制品极强的可塑性。