Cash handling is fraught with peril. Bills are fairly small and easy to hide,
Shortcut Pre-calculation: For the most commonly used speed profiles, the travel costs (time/distance) for shortcuts between border points within each cluster are pre-calculated and stored. (Each border point effectively has an "entry" and "exit" aspect for directed travel).
，详情可参考51吃瓜
厦门的年夜饭市场火爆。这道“龙腾四海小青龙”的龙虾头被固定在盘中，被家人们调侃为“老演员”，还要留给下一桌用。南方周末记者 黄思琪/摄
struct page_info *p;