C语言数组和函数

#include <stdio.h>

int arrayAverage(int a[], int count);
int arrayMax(int a[],int count);
int arrayMin(int a[],int count);

int main()
{

    //1>    提示输入5个学生的成绩，算出平均分、最高分、最低分，然后输出

    int arry[5];

    for (int i=0; i<5; i++) {

        printf("please %d  number\n",i+1);

        scanf("%d",&arry[i]);
    }

    int length=sizeof(arry)/sizeof(int);

    int ave=0,max=0,min=0;

    ave=arrayAverage(arry,length);

    max=arrayMax(arry,length);

    min=arrayMin(arry,length);

    printf("平均成绩为%d，最大成绩为%d，最小成绩为%d\n",ave,max,min);

    return 0;
}

int arrayAverage(int a[], int count)
{
    int sum = 0;

    for (int i = 0; i < count; i++)
    {
        sum += a[i];
    }
    int average = sum / count;

    return average;
}

int arrayMax(int a[],int count)
{
    int max=a[0];

    for (int i=0; i<count; i++) {
        if (max<a[i]) {
            max=a[i];
        }
    }

    return max;
}

int arrayMin(int a[],int count)
{
    int min=a[0];

    for (int i=0; i<count; i++) {
        if(min>a[i])
        {
            min=a[i];
        }
    }

    return min;
}