用产品经理的心态对待咖啡，不断迭代好喝的咖啡。公众号：咖啡平方
This is the same idea behind binary search. In a sorted array, you compare against the middle element and eliminate half the remaining candidates. In a quadtree, you choose one of four quadrants and ignore the other three regions. Each level narrows the search space by a factor of four instead of two.
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Suppose you're building a map application. You have millions of restaurants, gas stations, and landmarks, each with a latitude and longitude. A user taps the screen and asks: "What's near me?"。业内人士推荐WPS下载最新地址作为进阶阅读
Consider Nava. Another of her favorite phrases is “I seein’ it!”，这一点在搜狗输入法下载中也有详细论述