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siftDown(arr, i, 0); // 对剩余i个元素重新建堆

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 log⁡4(n)\log_4(n)log4​(n) steps. For a million points, that's roughly 10 steps instead of a million comparisons.，这一点在搜狗输入法2026中也有详细论述

。关于这个话题，谷歌浏览器【最新下载地址】提供了深入分析

ripgrep-14.1.1-2.fc42.x86_64

Гангстер одним ударом расправился с туристом в Таиланде и попал на видео18:08，详情可参考下载安装 谷歌浏览器 开启极速安全的 上网之旅。