为什么这个用指针会没有输出？请各位看看

Question

#include<stdio.h>
void SUM(int p, int n){
int i,sum=0;
printf("the add:\n");
for(i=0;i<n;i++){
if((p+i)%2!=0){
printf("%5d",(p+i));
sum+=(p+i);
}
printf("\n");
printf("%d\n", sum);
}
}
main()
{
int *pointer, a[10],i;
pointer=a;
printf("please input :\n");
for(i=0;i<10;i++){
scanf("%d", a[i]);}
SUM(pointer, 10);
}

Answer 1

scanf("%d", &a[i])