直接定义一个longlong类型的变量赋值就行了。
by LiJoQiao @ 2023-05-10 18:37:20
@[Harry_Haiyun](/user/977778)
```c
#include<bits/stdc++.h>
using namespace std;
int main()
{
long long n;
cin>>n;
cout<<n;
}
```
by huangyifan1688 @ 2023-05-19 20:57:09
注意floor和ceil的返回值并不是整形，要强转，这题则是要强转成longlong
by HackerLzh @ 2023-05-20 15:31:12