p3332?
by _5011_ @ 2020-05-25 20:00:04
@[ziiidan](/user/162864) 很多树套树都可以用树状数组套线段树
by Limit @ 2020-05-25 20:01:32
P1975
P2617
P3332
P3380
P1903
by Limit @ 2020-05-25 20:02:37
这话不无道理
by ziiidan @ 2020-05-25 20:02:55
@[ziiidan](/user/162864) 树状数组套线段树甚至可以做到线段树套平衡树做不到的操作
by Limit @ 2020-05-25 20:08:05
也可能只是我不会/kk
by Limit @ 2020-05-25 20:08:23
5445?
by FZzzz @ 2020-05-25 20:09:05