在此献上AC代码——
```cpp
#include<iostream>
using namespace std;
long long xx,xy,yx,yy;
int main()
{
cin>>xx>>xy>>yx>>yy;
if(xy*yy>2147483647 || xy*yy<-2147483648)
cout<<"long long int";
else if(xx*yy>2147483647 || xx*yy<-2147483648)
cout<<"long long int";
else if(xy*yx>2147483647 || xy*yx<-2147483648)
cout<<"long long int";
else if(xx*yx>2147483647 || xy*yy<-2147483648)
cout<<"long long int";
else
cout<<"int";
return 0;
}
```
by fengjs @ 2024-02-23 08:42:50
@[fengjs](/user/1038921)
谢谢大神，全部AC。
by wangtanhao2013 @ 2024-02-23 08:44:50