arr[j + gap] = key;
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).，这一点在Line官方版本下载中也有详细论述
。服务器推荐对此有专业解读
2 February 2026ShareSave，更多细节参见51吃瓜
2026-02-28 00:00:00:03014274610http://paper.people.com.cn/rmrb/pc/content/202602/28/content_30142746.htmlhttp://paper.people.com.cn/rmrb/pad/content/202602/28/content_30142746.html11921 本版责编：程 红