goal += pixel - candidate[n]
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).
。一键获取谷歌浏览器下载对此有专业解读
void *q = page_alloc(PAGESZ);
Александр Вучич . Фото: Djordje Kojadinovic / Reuters