If you reassign the variable, e.g nums = append(nums, 16), that’s a different story can of worms entirely. ↩︎
What if you create a truly unique routing profile that's wildly different from the common ones for which shortcuts were pre-calculated? The system is smart. If it detects that too many shortcuts (~50, for example) need on-the-fly recalculation and deviate significantly, it might determine that falling back to the original, comprehensive A* algorithm for the entire route would actually be faster than doing many small, heavily modified A* calculations.
，这一点在同城约会中也有详细论述
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