Фото: Mindaugas Kulbis / AP
Pre-allocate everything
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Lex: FT's flagship investment column
如今，门店已进行试运营，同样的门店面积，销售额达到了过去只做生鲜肉、预包装食品的10倍以上。
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.