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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.
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To fix this, I moved to Unicode Block Elements. Block elements are a (weirdly incomplete) set of blocky unicode characters like UPPER_HALF_BLOCK (▀), LOWER_HALF_BLOCK (▄), and FULL_BLOCK (█) 1.。业内人士推荐51吃瓜作为进阶阅读
《水浒传》中卢俊义的扮演者王卫国