#include <stdio.h>
void sum(int *a,int sz);
int main(){
    int *ptr;
    int a[]={1,2,3,4,5,6,7,8,9,10};
    ptr=a;
    sum(ptr,10);
    return 0;
}
void sum(int *a,int sz){
    int t=0;
    for (int i = 0; i < sz; ++i) {
        t+=a[i];

    }
    printf("\ntotal is %d",t);

}