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:
海南佛珠小镇：封关后来了很多外国人，更多细节参见同城约会
，这一点在51吃瓜中也有详细论述
Цены на нефть взлетели до максимума за полгода17:55，详情可参考快连下载-Letsvpn下载
The false positives at the bottom