程序代码：

#include<stdio.h>
void input(char(*p_course)[10], int *p_num, float *p_score)
{
    int i, j;
    printf("Please input student's number:\n");
    for (i = 0; i < 4; i++)
        scanf_s("%d", p_num + i);
    printf("Please input student's course:\n");
    for (j = 0; j < 5; j++)
        scanf_s("%s", p_course[j], 10);
    printf("Please input student's score:\n");
    for (i = 0; i < 4; i++)
        for (j = 0; j < 5; j++)
            scanf_s("%f", p_score + 5 * i + j);
}

void aver_score(float *p_score, float *p_aver)
{
    int i, j;
    float sum, aver;
    for (i = 0; i < 4; i++)
    {
        sum = 0;
        aver = 0;
        for (j = 0; j < 5; j++)
            sum += *(p_score + 5 * i + j);
        aver = sum / 5;
        *(p_aver + i) = aver;
    }
}

void aver_course(char(*p_course)[10], float *p_score)
{
    int i;
    float sum = 0, aver;
    for (i = 0; i < 4; i++)
        sum += *(p_score + 5 * i);
    aver = sum / 4;
    printf("course 1:%s average score is %5.2f\n", *p_course, aver);
}

void fail_score(char(*p_course)[10], int *p_num, float *p_score, float *p_aver)
{
    int i, j, k;
    printf("    ==============Student who is failed in two courses=============    \n");
    printf("No. ");
    for (i = 0; i < 5; i++)
        printf("%11s", p_course[i]);
    printf("       average\n");
    for (i = 0; i < 4; i++)
    {
        k = 0;
        for (j = 0; j < 5; j++)
            if (*(p_score + 5 * i + j) < 60)
                k++;
        if (k >= 2)
        {
            printf("%d", p_num[i]);
            for (j = 0; j < 5; j++)
                printf("%11.2f", *(p_score + 5 * i + j));
            printf("%11.2f\n", p_aver[i]);
        }
    }
}

void good_score(char(*p_course)[10], int *p_num, float *p_score, float *p_aver)
{
    int i, j, n;
    printf("      ===============Student whose score is good============    \n");
    printf("No. ");
    for (i = 0; i < 5; i++)
        printf("%11s", p_course[i]);
    printf("          average\n");
    for (i = 0; i < 4; i++)
    {
        n = 0;
        for (j = 0; j < 5; j++)
            if (*(p_score + 5 * i + j) > 85)
                n++;
        if (n == 5 || p_aver[i] > 90)
        {
            printf("%d", p_num[i]);
            for (j = 0; j < 5; j++)
                printf("%11.2f", *(p_score + 5 * i + j));
            printf("%11.2f\n", p_aver[i]);
        }
    }
}

int main()
{
    void input(char(*p_course)[10], int *p_num, float *p_score);
    void aver_score(float *p_score, float *p_aver);
    void aver_course(char(*p_course)[10], float *p_score);
    void fail_score(char(*p_course)[10], int *p_num, float *p_score, float *p_aver);
    void good_score(char(*p_course)[10], int *p_num, float *p_score, float *p_aver);
    char course[5][10], (*p_course)[10];
    int num[4], *p_num;
    float score[4][5], *p_score, aver[4], *p_aver;
    p_course = course;
    p_num = num;
    p_score = *score;
    p_aver = aver;
    input(p_course, p_num, p_score);
    aver_score(p_score, p_aver);
    aver_course(p_course, p_score);
    fail_score(p_course, p_num, p_score, p_aver);
    good_score(p_course, p_num, p_score, p_aver);
    return 0;
}