2019 江苏省大学生程序设计竞赛

rank solved A B C D E F G H I J K L
11 6 . O O . O Ø . . O . O O

B

Solved by wb(+2).

C

Solved by wb and XLor(+3).

主席树被卡常了。

莫队转移的时候用树状数组维护就行了。

E

Solved by wb and XLor(+1).

开场被榜和假数据演了。

F

Upsolved by wb.

容斥后 min_25 筛。

I

Solved by wb, Rainstar and XLor(+11).

Tree dp,背包转移,size 优化。

K

Solved by wb.

L

Solved by XLor.