据彭博社报道，美国 3D 引擎技术公司 Unity Software 正在评估其中国业务的多种战略选项。
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For well-distributed points, nearest neighbor search is often near O(logn)O(\log n)O(logn) in practice. In the worst case (all points clustered tightly or along a line), it can degrade to O(n)O(n)O(n), but this is uncommon with typical spatial data.，更多细节参见同城约会
Author(s): Ramsey Issa, Said Hamad, Ricardo Grau-Crespo, Emad Awad, Taylor D. Sparks
US President Donald Trump (R) looks on as US Secretary of Defense Pete Hegseth speaks to the press following US military actions in Venezuela | AFP via Getty Images