$ N \leq 1e5 $，你 $O(n^2)$ 的做法会T
by lzh123bc @ 2023-12-13 16:52:34
orz
by UYHW @ 2023-12-13 23:16:51
你可以对他进行一个 CSP-S2023T2 的优化
姐姐快给我关注！
by UYHW @ 2023-12-13 23:33:50
@[lzh123bc](/user/531197) 已关
by Nickhozell @ 2023-12-20 15:29:01