@[Maxmilite](/user/274993)
by tybbs @ 2023-08-14 14:27:48
还缺少数据范围，根据之前的讨论，应为 $5\times 10^5$
by tybbs @ 2023-08-14 14:55:22
@[feecle6418](/user/42156)
by tybbs @ 2023-08-16 10:24:23
@[tybbs](/user/527303) fixed thx
by feecle6418 @ 2023-08-16 12:09:16
emm..是 “BRAK" 不是 "BARK" @[feecle6418](/user/42156)
by tybbs @ 2023-08-16 12:40:40
@[tybbs](/user/527303) 我错了，已改正
by feecle6418 @ 2023-08-16 16:15:57