数组名作为函数参数（两个参数）--求数组平均数

int main()
{
float average(float array[], int n);
float arr1[5] = {1,2,3,4,5};
float arr2[10] = { 1,2,3,4,5 ,1,2,3,4,5 };
float aver1, aver2;
aver1 = average(arr1, 5);
aver2 = average(arr2, 10);
printf("average of arr1 is %5.2f\naverage of arr2 is %5.2f", aver1, aver2);

}

float average(float array[], int n)
{
int sum = 0;
float aver;
for (int i = 0; i < n; i++)
{
sum = sum + array[i];
}
aver = sum / n;
return aver;
}