-session: Session
int n1 = mid - left; // 左子数组长度，推荐阅读91视频获取更多信息
Oct 11 16:06:31 fedora bootc[1326]: Fetching ostree-unverified-registry:harbor.cortado.thoughtless.eu/bootc/server:add-nginx，详情可参考旺商聊官方下载
Shortcuts: For common scenarios, we pre-calculate the travel time/distance (the "shortcut") between border points within the same cluster and also to border points of immediately adjacent clusters.