OpenAI周五发布的声明称，亚马逊、英伟达和软银在该轮融资中分别投资了500亿美元、300亿美元和300亿美元。这笔投资使OpenAI的估值达到7300亿美元(未计入投资前)，相较于其10月份在二级融资中的5000亿美元估值，实现了大幅增长。OpenAI表示，随着本轮融资的推进，预计其他投资者也将加入。（证券时报）
The number of female rough sleepers rose by 8% to 733, while there were 3,938 men and another 122 cases where the gender was not recorded.
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好萊塢主要集團對Seedance使用蜘蛛人、黑武士等版權角色提出抗議。迪士尼與派拉蒙已發出停止使用通知書，要求Seedance停止使用其內容。
testSort(selectionSort, "Selection", arr, N);
Regions with many nearby points keep subdividing. Regions with few or no points stay large. The tree adapts to the data: dense areas get fine-grained cells, sparse areas stay coarse. The split grid is predetermined (always at midpoints), but the tree only refines cells that need it. Sparse regions stay as single large nodes while dense regions subdivide deeply.