@[Izayoi](/space/show?uid=58197)
~~这题好像long long就行了吧~~（光速逃）
by cnyali_hjh @ 2018-09-14 21:57:00
考古
by hnyqwq @ 2019-02-08 11:30:33
int就行
by chenxh @ 2020-02-13 11:37:00
五年OI一场空，不开long long见祖宗...
by fzj2007 @ 2020-02-28 19:42:01