为什么点7，8WA

//P1104
#include<bits/stdc++.h>
#define sc scanf
#define pr printf
using namespace std;
struct student
{
    int chinese;
    int english;//嘤语 
    int math;
    int num;
    int scan;
};
bool cmp(student s,student ss)
{
    if(s.num!=ss.num)
        return s.num>ss.num;
    else if(s.chinese!=ss.chinese)
        return s.chinese>ss.chinese;
    else if(s.scan!=ss.scan)
        return s.scan<ss.scan;
}
int main()
{
    student a[301];
    int n,i;
    sc("%d",&n);
    for(i=0;i<n;i++)
    {
        a[i].num=0;
        sc("%d%d%d",&a[i].chinese,&a[i].math,&a[i].english);
        a[i].num+=a[i].chinese+a[i].math+a[i].english;
        a[i].scan=i+1;
    }
    sort(a,a+n+1,cmp);
    for(int i=0;i<5;i++)
        pr("%d %d\n",a[i].scan,a[i].num);
    return 0;
}