求debug

P1801 黑匣子

@[pzq_alexpeng](/user/384214) 您是WA了几个点啊,还有```rogerakioi```、```rogerakimo```和```stO_roger_Orz```好评(
by YamadaRyou @ 2021-05-15 16:33:33


还有,```j```存在的意义是什么,可以直接被```stO_roger_Orz```代替吧
by YamadaRyou @ 2021-05-15 16:35:35


我是直接3221226536
by esquigybcu @ 2021-05-15 16:36:08


???
by YamadaRyou @ 2021-05-15 16:38:51


@[pzq_alexpeng](/user/384214) fAKe
by rsg23 @ 2021-05-15 17:12:42


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