20分，求帮助（倒下）

代码如下

#include<stdio.h>
typedef struct{
    char name[100];
    int chi;
    int math;
    int eng;
} stu;
int main()
{
    int n;
    stu s[1000];
    int arr[1000];
    int flat=0;
    scanf("%d", &n);
    for (int i = 0; i < n; i++)
    {
        scanf("%s%d%d%d", s[i].name, &s[i].chi, &s[i].math, &s[i].eng);
    }
    for (int i = 0; i < n; i++)
    {
        int sum = s[i].chi + s[i].math + s[i].eng;
        arr[i] = sum;
    }
    for (int i = 0; i < n; i++)
    {
        int max = arr[0];
        if (max < arr[i])
        {
            max = arr[i];
            flat = i;
        }
    }
    printf("%s %d %d %d", s[flat].name, s[flat].chi, s[flat].math, s[flat].eng);
    return 0;
}