Силовые структуры
SpaceX rocket debris crashes into Poland
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If tellers punched transactions into cards, the bank could come much
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.