c语言结构体，基本的就是运行不了

Question

崩溃了，这个试了很多都编译错误，能告诉我怎么才能写的对，或者怎样才能运行成功吗，有代码最好，c语言

Answer 1

#include<stdio.h>
#include <string.h>

typedef struct _student
{
    char id[20];
    char name[20];
    double score[4];
    double sum;
}student;

int main()
{
    student stu[1000],t;
    int n=0;
    scanf("%s",stu[n].id);
    while(strcmp(stu[n].id,"q") != 0)
    {
        scanf("%s %lf %lf %lf %lf",stu[n].name,&stu[n].score[0],&stu[n].score[1],&stu[n].score[2],&stu[n].score[3]);
        stu[n].sum  = stu[n].score[0] + stu[n].score[1] + stu[n].score[2] + stu[n].score[3];
        n++;
        scanf("%s",stu[n].id);
    }
    for(int i=0;i<n-1;i++)
        for(int j=0;j<n-i-1;j++)
        {
            if(stu[j].sum < stu[j+1].sum)
            {
                t = stu[j];
                stu[j] = stu[j+1];
                stu[j+1] = t;
            }
        }
    for(int i=0;i<n;i++)
        printf("%s %s %.2lf %.2lf %.2lf %.2lf %.2lf\n",stu[i].id,stu[i].name,stu[i].score[0],stu[i].score[1],stu[i].score[2],stu[i].score[3],stu[i].sum);
    return 0;
}