k是2的64次方-1的话不应该是ULL吗
by zengwei @ 2019-11-16 22:40:49
确实有64的啊，数据点有2^64-1的啊QWQ
by starwolfy_rika @ 2019-11-16 22:46:44
您太强了吧QWQ
by starwolfy_rika @ 2019-11-16 22:46:53
您要的[增强数据](https://www.luogu.org/problem/U97232)
by Chavapa @ 2019-11-19 19:14:48