QNDGX
by do_while_true @ 2020-03-22 18:56:44
我傻了，此贴终结
by Spasmodic @ 2020-03-22 18:57:20
emmmmm
by SamariumPhosphide @ 2020-03-22 19:03:47
刚学OI切黑题
by Yukinoshita_Yukino @ 2020-03-22 19:23:24
@[Crazy_Bucket](/user/173323) 这是道蓝题
by Spasmodic @ 2020-03-22 19:38:26
实际上这原来是道黑题，不过我发了个帖子……
by Smile_Cindy @ 2020-03-23 22:34:56