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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.
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情绪接纳先于行为纠正：当孩子哭闹时，先抱抱，再说「我理解」，而不是急着讲道理。
How to preorder the iPhone 17e, Apple's new budget phone
Sizes: 13- and 15-inch models