c语言计算若干名学生的平均成绩

#include <stdio.h>
void average();
void search();
int main(int argc, const char * argv[]) {
    float score[3][4]={{65,67,70,68,},{87,84,93,65},{90,100,95,80}};
    average(*score,12);
    search(score,2);
    return 0;
}
void average(float *p,int n)
{
    float *p_end;
    float sum=0,aver;
    for(p_end=p+n-1;p<=p_end;p++)
        sum+=*p;
    aver=sum/n;
    printf("average=%2.5f\n",aver);
}
void search(float(*p)[4],int n)
{
    int i;
    printf("the score of No.%d is:",n+1);
    for(i=0;i<4;i++)
        printf("%10.2f\n",*(*(p+n)+i));
}

output:

average=80.33334
the score of No.3 is:     90.00
    100.00
     95.00
     80.00