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Editors: Erika Wright and Ilan Goodman
，更多细节参见WPS下载最新地址
For example, a 500km route might be broken down into ~100 such shortcuts. If each A* shortcut calculation explores 100-1000 detailed road segments, the total detailed segments visited by A* might be around 10,000-50,000. Compare this to the 1,000,000+ segments the old A* might have needed for the entire route!
On the fourth loop iteration, the backing store of size 4 has only 3