第11次作业

5通讯录

#include<stdio.h>
#include<stdlib.h>
 struct birth{

 int year;
 int month;
 int day;
};
struct students{
    char name[10];
    long int birth;
    char phone[17];
};

int update_score(struct students *data, int n)
{
    int i, 
 struct students temp;
    for (i = 0; i < n; i++) {
        for (j = i + 1; j < n; j++) {
            if (data[i].birth > data[j].birth) {
                temp = data[i];
                data[i] = data[j];
                data[j] = temp;
            }
        }
    }
    for (i = 0; i < n; i++) {
        printf("%s  ", data[i].name);
        printf("%ld  ", data[i].birth);
        printf("%s\n", data[i].phone);
    }
    return 0;
}

int main()
{
    struct students *data;
    int n, i;
    scanf("%d", &n);
    data = (struct students*)malloc(sizeof(struct students) * n);
    for (i = 0; i < n; i++) {
        scanf("%s", data[i].name);
        scanf("%ld", &data[i].birth);
        scanf("%s", data[i].phone); 
    }
    update_score(data, n);
    system("pause");
    return 0;

}

 #include<stdio.h>
#include<string.h>
int set_grade(struct students students[10],int n);
struct students {
int num;
char name[10];
float score;
char grade;
};
int main()
{
int i,n,count;
printf("请输入学生数据:");
scanf("%d",&n);
struct students students[10];
for(i=0;i<n;i++){
printf("name:");
scanf("%s",&students[i].name);
printf("number:");
scanf("%d",&students[i].num);
printf("score:");
scanf("%lf",&students[i].score);
count=set_grade(students,n);
}
for(i=0;i<n;i++){
printf("学号：%d姓名：%s等级：%c\n",students[i].num,students[i].name,students[i].grade);
}
printf("不及格人数为:%d\n",count);
return 0;
}
int set_grade(struct students students[10],int n){
int i,count=0;
for(i=0;i<n;i++){
if(students[i].score<60){
students[i].grade='D';
count++;}
else if(students[i].score<70&&students[i].score>=60){
students[i].grade='C';}
else if(students[i].score<85&&students[i].score>=70){
students[i].grade='B';}
else if(students[i].score<=100&&students[i].score>=85){
students[i].grade='A';}
}
return count;
}