Range queries ask "what's inside this box?" But sometimes the question is "what's nearest to this location?" This is the nearest neighbor problem, and you don't know how big your search radius should be. The nearest point might be right next to you or far away.
"You could see this was something game-changing for Emperor penguins. Suddenly you're thinking, well, have we got time to save them?" he says.
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The musician is a self-confessed trivia nerd，这一点在safew官方版本下载中也有详细论述
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