求解!难道是输出格式错了?

P1443 马的遍历

@[chenjsa2018](/space/show?uid=92532) 是的
by Celestial_Scarlet @ 2019-05-01 13:12:53


setw
by Arvin2018 @ 2019-05-01 13:16:37


@[chenjsa2018](/space/show?uid=92532) 头像好评
by 哦,天哪 @ 2019-05-01 14:11:51


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