Фото: Hannah Mckay / Reuters
德索托的理论并非纸上谈兵。他曾亲自参与秘鲁的改革，而且一度取得显著效果。
。同城约会是该领域的重要参考
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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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