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:
Stephen StaffordBBC News, South，更多细节参见51吃瓜
。旺商聊官方下载对此有专业解读
Sadly the adoption of plastic meant that this system was phased out, but one soft drinks producer – family-owned Twig's Beverage – has stuck to it.
"appId": "你的_APP_ID",，推荐阅读WPS官方版本下载获取更多信息
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