#include<stdio.h>
#include<malloc.h>

struct student
{
    char name[100];
    char age;
    float score;
};


int main (void)
{
    struct student * parr;
    int len ;
    int i;
    int j;
    struct student t;
    printf("请输入学生的个数:\n");
    printf("人数= ");
    scanf("%d",&len);
    parr = (struct student *) malloc(len * sizeof(struct student ));
    for(i = 0; i <len; i++ )
    {
        printf("请输入第%d个学生的信息\n",i+1);
        printf("姓名=");
        scanf("%s",parr[i].name);

        printf("年龄=");
        scanf("%d",&parr[i].age);

        printf("分数=");
        scanf("%f",&parr[i].score);
    }

    for(i = 0; i < len-1; ++i)
        for(j = 0; j < len-1-i; ++j)
            {
            if(parr[j].score < parr[j+1].score)
                {
                    t = parr[j];
                    parr[j] = parr[i+j];
                    parr[j+1] = t;
                }
               
            }
    printf("以下为学生排名信息:\n");
    printf("********************************************************************************\n");
   
    for(i = 0; i < len; i++)
    {
        printf("第%d名学生的信息如下：",i+1);
        printf("姓名：%s 年龄：%d 成绩：%f\n",parr[i].name, parr[i].age, parr[i].score);
    }

    return 0;
}