差等生还是优等生

#include <stdio.h>
void first_average(float (*p)[6],int n);
void fail(float (*p)[6],int m,int grade);
void excellent(float (*p)[6],int n);
int main()
{
    float sh[4][6]={{90.0,75.5,80.0,59.0,43.0,001},{88.5,75.0,96.0,57.0,60.5,002},{89.0,87.0,86.0,90.4,100.0,003},{98.0,96.0,99.0,85.0,82.0,004}};
    float (*p)[6]; //定义行指针
    int average,no,grade,ave_gra;
    p=sh;
    scanf("%d",&average);
    scanf("%d",&no);
    scanf("%d",&grade);
    scanf("%d",&ave_gra);
    printf("第%d门课的平均分为:\n",average);
    first_average(p,average);
    printf("有%d门以上不及格的学生信息为:\n",no);
    fail(p,no,grade);
    printf("全部课程成绩在%d分以上的学生为:\n",ave_gra);
    excellent(p,ave_gra);
    return 0;
}
void first_average(float (*p)[6],int n)
{
    float ave=0;
    int i=0;
    for(;i<4;i++)
        ave=ave+p[i][n-1];
    ave=ave/4;
    printf("%.2f\n",ave);
}

void fail(float (*p)[6], int m, int grade) {
    int i, j, k = 0;
    float ave = 0;
    for (i = 0; i < 4; i++) {
        for (j = 0; j < 5; j++) {
            if (*(*(p + i) + j) < 60)
                k++;
            if (k == m) {
                printf("学号为:\n");
                printf("00%.0f\n", p[i][j + 1]);
                printf("全部成绩:\n");
                for (j = 0; j < 5; j++) {
                    ave = ave + *(*(p + i) + j);
                    printf("%.1f", *(*(p + i) + j));
                }
                printf("\n");
                ave = ave / 5;
                printf("平均成绩:\n");
                printf("%.1f\n", ave);
                k = 0;
            }
        }
    }
    printf("平均成绩在%d分以上的学生为:\n",grade);
    for (i = 0; i < 4; i++) {
        for (j = 0; j < 5; j++) {
            ave = ave + *(*(p + i) + j);
        }
        ave = ave / 5;
        if(ave>grade){
            printf("00%.0f ",*(*(p + i) + j));
        }
        ave=0;
    }
    printf("\n");
}
void excellent(float (*p)[6],int n)
{
    int i,j;
    float ave=0,k=0;
    for(i=0;i<4;i++){
        for(j=0;j<5;j++){
            ave=ave+*(*(p+i)+j);
            if(*(*(p+i)+j) > n)
                k++;
        }
        if(k==5)
            printf("00%.0f",*(*(p+i)+5));
        ave=0;
        k=0;
    }
}