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.
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The heavy and continuous days of rainfall follow a similar pattern to the last few years of wetter winters. Six of the ten wettest since records began nearly 250 years ago have been this century, according to the Met Office.
Miliband made the comment in a letter to MPs who had expressed concerns about data centres not being mentioned in the government's plans to deliver net zero.