第三次结构部分

#include 
#include
struct book
{  
    char name[50];  
    double price;     
}b[10];  
int main()
{  
    int n,i,min=0,max=0;  
    scanf("%d",&n);  
    for(i=0;i)
    {  
       scanf("\n");
        gets(b[i].name); 
        scanf("%lf",&b[i].price);  
        if(b[i].price>b[max].price)
        {  
            
            max=i;  
        }  
        if(b[i].price<b[min].price)
        {  
           
            min=i;  
        }   
    }  
    printf("%.2lf, %s\n",b[max].price,b[max].name);  
    printf("%.2lf, %s\n",b[min].price,b[min].name);  
    return 0;  
}  

#include 
#define MAXN 10

struct student{
    int num;
    char name[20];
    int score;
    char grade;
};

int set_grade( struct student *p, int n );

int main()
{   struct student stu[MAXN], *ptr;
    int n, i, count;

    ptr = stu;
    scanf("%d\n", &n);
    for(i = 0; i ){
       scanf("%d%s%d", &stu[i].num, stu[i].name, &stu[i].score);
    } 
   count = set_grade(ptr, n);
   printf("The count for failed (<60): %d\n", count);
   printf("The grades:\n"); 
   for(i = 0; i )
       printf("%d %s %c\n", stu[i].num, stu[i].name, stu[i].grade);
    return 0;
}