是普及组第一题吧
by ljm1621 @ 2021-01-24 16:05:12
哦对对普及组第一题..
by sinsop90 @ 2021-01-24 16:06:57
QP
by Agent008 @ 2021-01-24 16:07:20
水CF题可耻
by trsins @ 2021-01-24 16:11:08
CCF抄CF可耻
by wzj_zhzx_oicon @ 2021-01-24 16:12:00
重题，建议隐藏P7071
by _caiji_ @ 2021-01-24 16:14:31
CCF抄CF？？？xswl
by xtracer @ 2021-01-24 16:19:23
这种比较经典的签到 Idea 很容易重吧（
by Aw顿顿 @ 2021-01-24 16:24:24
@[caijianhong](/user/390033) 
by lion0514 @ 2021-01-24 20:32:52