#include<cstdio>
#include<algorithm>
struct student{
    int no;
    int l;
    int m;
    int e;
    int sum;
};
int main(){
    int n,i;
    student stu[1000];
    scanf("%d",&n);
    for(i=1;i<n+1;i++)
    {
        stu[i].no=i;
        scanf("%d %d %d",&stu[i].l,&stu[i].m,&stu[i].e);
        stu[i].sum=stu[i].l+stu[i].m+stu[i].e;
    }
    sort(stu[0].sum,stu[n].sum+n);
    for(i=1;i<6;i++)
     printf("%d%d\n",stu[i].no,stu[i].sum);
} 
} 

代码报错[Error] 'sort' was not declared in this scope