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.
The trade-off is performance. Every syscall goes through user-space interception, which adds overhead. I/O-heavy workloads feel this the most. For short-lived code execution like scripts and tests, it is usually fine, but for sustained high-throughput I/O, it can matter.
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Фото: Алексей Даничев / РИА Новости
16:55, 27 февраля 2026Путешествия
3014249510http://paper.people.com.cn/rmrb/pc/content/202602/27/content_30142495.htmlhttp://paper.people.com.cn/rmrb/pad/content/202602/27/content_30142495.html11921 全国人民代表大会常务委员会免职名单