@[ALANYUEHNV](/user/688779) 你都 `sort` 好了又不缺那点时间，直接从前往后扫一遍不行吗？ by irris @ 2022-05-23 21:41:18
@[ALANYUEHNV](/user/688779) `while(l+1<=r)` by cjrawa @ 2022-05-24 16:44:45