https://www.luogu.org/problemnew/show/U40787
https://www.luogu.org/problemnew/show/U40791
@[lin_toto](/space/show?uid=256)
by wwz20050323 @ 2018-09-22 19:42:39
...这种题目
by Fraction @ 2018-09-22 19:50:12
@[Fraciton](/space/show?uid=32107)
???
by 不到前10不改名 @ 2018-09-22 19:50:29
@[Fraciton](/space/show?uid=32107)
太水了是吗?
by 不到前10不改名 @ 2018-09-22 19:50:40
@[Fraciton](/space/show?uid=32107)
好像是前2题
by 不到前10不改名 @ 2018-09-22 19:51:06