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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
"We had to convince investors. Our own people were sceptical at first, 'I'm already not capable of finishing my work in five days' [was one reaction].
在克林頓擔任總統的第二任期中，沒有任何一位幕僚比班德（Doug Band）與他更親近。班德的名字常與克林頓同時出現在飛行紀錄上，顯示他們與愛潑斯坦及麥克斯韋一同出席國際行程。
如今，宠物有了更多选择：专业寄养、上门照护、主题陪伴式住宿逐渐成熟，春节不再只是留守与托付的两难题。当“带不走的它”成为牵动人心的变量，品牌消费便找到了入口。