一个报错的修改 warning: ignoring return value of ‘scanf’, declared with attribute warn_

#include <stdio.h>

int main ()
{
    struct student
    {
        char name[10];
        char no[10];
        float score;
    };
    int n;
    int i;
    scanf("%d",&n);
    struct student stu[n];
    struct student max;
    struct student min;
    for (i=0;i<n;i++)
    {
    scanf("%s %s %f ",stu[i].name,stu[i].no,&stu[i].score);
    }
    max=stu[0];
    min=stu[0];
    for(i=0;i<n;i++)
    {
   
        if (max.score<stu[i].score)
            max = stu[i];
        if (min.score>stu[i].score)
            min=stu[i];
    }
    printf("%s %s\n",max.name,max.no);
    printf("%s %s\n",min.name,min.no);
    return 0;
}
a.c:13:2: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d",&n);
  ^~~~~~~~~~~~~~
a.c:19:2: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%s %s %f ",stu[i].name,stu[i].no,&stu[i].score);
  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~