#define?N?10?//定義壹個符號常量
//求平均值函數
float?average(int?*arr,int?n)
{
float?sum;
int?i;
for(sum=0,i=0;i<n;i++)
sum+=arr[i];
return?sum/n;
}
int?main()
{
int?a[N],i;
for(i=0;i<N;i++)
scanf("%d",&a[i]);?//輸入數組元素
printf("平均值=?%.2f\n",average(a,N));
return?0;
}