~~发现一个大佬。。。~~
不开long long见祖宗！！！
by slzx2021zlx @ 2022-07-27 08:09:41
...居然是函数没开long long
by LINCE @ 2022-07-29 07:36:38
@slzx2021zlx，全开long long没用
by LINCE @ 2022-07-29 07:41:44