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.
第一层是上游“卖铲子”的硬件基础设施供应商，核心逻辑是提供淘金必需的”工具”，稳稳赚取技术红利。
。关于这个话题，搜狗输入法2026提供了深入分析
Cluster & Border Point Definition: The map is divided into clusters, and border points are identified using the Ford-Fulkerson based method.
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