McKenzie worked his way up to the job of station leader after completing his first contract "on the ice" in 2019. He started as a mechanical maintenance engineer at BAS's Rothera Research Station, 1,000 miles away from Halley VI.
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Butch Wilmore and Suni Williams have been on the ISS since June 2024，详情可参考服务器推荐
The efficiency depends on the query size relative to the data distribution. A small query in a sparse region prunes almost everything. A query that covers the whole space prunes nothing (because every node overlaps), degenerating to a brute-force scan. The quadtree gives you the most benefit when your queries are spatially local, which is exactly the common case for map applications, game physics, and spatial databases.
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