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Games and physics simulations need to detect which objects are touching or overlapping. With nnn objects, checking every pair is O(n2)O(n^2)O(n2) comparisons, which gets expensive fast. A hundred objects means roughly 5,000 pair checks. A thousand means nearly 500,000.
，这一点在搜狗输入法2026中也有详细论述
The result from Step 2 is a high-level route – a sequence of shortcuts connecting border points.
17:52, 27 февраля 2026Экономика