把scanf换成去掉同步的cin就AC了？
by AThousandSuns @ 2018-08-09 13:11:23
dalao,关键点不是在这里。
``(n << 1ll) + (n << 3ll)``的运算结果是``int``.
``(n * 10ll)``的运算结果才是``long long``.
by watermoon @ 2018-08-09 16:45:02
@[AThousandSuns](/space/show?uid=72118)
by watermoon @ 2018-08-09 22:25:11
@[AThousandMoon](/space/show?uid=68148) 哦，感谢dalao……
by AThousandSuns @ 2018-08-09 22:26:21