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by _•́へ•́╬_ @ 2022-06-25 21:20:26
@[SweetOrangeOvO](/user/236862) $tot[0]$ 一开始要初始化为 $1$
by LJ07 @ 2022-06-26 07:53:55
我相信您知道是为什么
by LJ07 @ 2022-06-26 07:54:17
@[LJ07](/user/312306) 哦哦我明白了，感谢
by DitaMirika @ 2022-06-26 10:38:23