The quadtree is the two-dimensional case of a broader family of space-partitioning data structures. Octrees extend the same idea to three dimensions (splitting cubes into eight children), KD-trees use alternating axis-aligned splits (splitting along x, then y, then x again), and R-trees group nearby objects into bounding rectangles. Each variant makes different tradeoffs between construction time, query speed, and update cost.
Elliott认为只有脱离微软，Xbox才能成为一个强大独立的实体。微软游戏业务的新任CEO阿莎·夏尔马，或许正是带领Xbox推动此类转变的合适人选，帮助其“真正找回25年的品牌传承”。
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新华社北京2月27日电 国务院任免国家工作人员。
领克回应「高速语音关大灯」：已完成优化方案