为什么错了？```cpp #include

#include

using namespace std;

struct student{

string name;
int chinese,math,english;
int z=chinese+math+english;

}a,ans;

int main(){

int n;
cin>>n;
for (int i=1;i<=n;i++){
    cin>>a.name>>a.chinese>>a.math>>a.english;
    if (a.chinese+a.math+a.english>ans.chinese+ans.math+ans.english){
        ans=a;
    }
}
cout<<ans.name<<" "<<ans.chinese<<" "<<ans.math<<" "<<ans.english;
return 0;

}