C语言基础：动态一维数组求和

#include
#include
//动态申请空间必须加上头文件stdlib.h 
int main()
{
int *a=NULL,n,i;
printf("Please enter array numbers:");
scanf("%d",&n);

a=(int *)malloc(sizeof(int)*n);
printf("Please enter %d scores:",n);
for(i=0;i {
scanf("%d",a+i);
}
int sum=0;

for (i =0;i    {
        sum = sum + *(a+i);


    }


    printf("aver = %d\n",sum/n);

free(a);

}