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.
South Derbyshire District Council spokesperson said the supplier of food waste collection vehicles was experiencing "exceptionally high demand", making it difficult to get hold of them.
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Дания захотела отказать в убежище украинцам призывного возраста09:44
Shortcuts: For common scenarios, we pre-calculate the travel time/distance (the "shortcut") between border points within the same cluster and also to border points of immediately adjacent clusters.