...显然，i+j可能大于9
by 吾皇 @ 2019-09-12 21:57:04
@[上鸣电气](/space/show?uid=171129) 你 $i+j$ 会超界啊
by Rigby @ 2019-09-12 21:58:17
Thank you!
by 上鸣电气 @ 2019-09-14 12:39:37