อีเปียว v3

#include<stdio.h>
#define NUM 5

int* sum(int* a, int *b);
int main(){
    int i, a[NUM];
    for(i = 0; i < NUM; i++){
        printf("N%02d:", i + 1);
        scanf("%d", &a[i]);
    }
    printf("=%d\n", sum(&a[0], &a[NUM]));
    return 0;
}
int* sum(int* a, int *b){
    int temp=0;
    while(a<b){
        temp += *a;
        printf("p =  %d \n",a);
        printf("*p =  %d \n",*a);
        a++;

        }
    return temp;

}