90求助

#include<bits/stdc++.h>
using namespace std;
int n;
struct ll{
    string name;
    int chinese_score,english_score,maths_score,all_score;
}a[1000005];
bool cmp(ll a,ll b){
    return a.all_score>b.all_score;
}
int main(){
    cin>>n;
    for(int i=1;i<=n;i++){
        cin>>a[i].name>>a[i].chinese_score>>a[i].maths_score>>a[i].english_score;
        a[i].all_score=a[i].chinese_score+a[i].english_score+a[i].maths_score+a[i].all_score;   
    }
    sort(a+1,a+n+1,cmp);
    cout<<a[1].name<<" "<<a[1].chinese_score<<" "<<a[1].maths_score<<" "<<a[1].english_score<<endl;
    return 0;
}