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1. 找出最大值max和最小值min。关于这个话题，服务器推荐提供了深入分析
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2025 年第四季度携程录得其他收入 20.38 亿元，而去年同期为支出 1.37 亿元；。夫子对此有专业解读
The quadtree is the two-dimensional case of a broader family of space-partitioning data structures. Octrees extend the same idea to three dimensions (splitting cubes into eight children), KD-trees use alternating axis-aligned splits (splitting along x, then y, then x again), and R-trees group nearby objects into bounding rectangles. Each variant makes different tradeoffs between construction time, query speed, and update cost.