Minor road updates (like those in map data that might be a few months old if you're using maps from different regions) usually result in negligible cost differences for shortcuts, so the pre-calculated values remain effective.
（三）及时向公安机关、网信部门报告重大威胁情报和程序样本。
，这一点在谷歌浏览器【最新下载地址】中也有详细论述
If the A* calculation for a shortcut (in Step 3) finds it's now impassable, or if its actual detailed cost is significantly different (e.g., 20%) from the pre-calculated shortcut value:
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