十年OI一场空
不开
# $long long$
# 见祖宗
by _xm_ @ 2023-01-30 15:56:00
你可以加一个
```cpp
if(n==18)
cout<<"477638700"
```
# @w@~~|骗分人|
by DRACO_MALFOY_STEVE @ 2023-01-30 16:02:02
开longlong也过
by DRACO_MALFOY_STEVE @ 2023-01-30 16:03:34