using namespace std;
#include <iostream>


double rec_array_sum(const double myarray[],int min,int max)
{
  double res;

  if (min>max) 
    res=0.0;
  else if (min==max) 
    res = myarray[min];
  else {
    int pos=(min+max)/2;
    res = rec_array_sum(myarray,min,pos)+
          rec_array_sum(myarray,pos+1,max);
  }

  return res;
}

double array_sum (const double myarray[],int max) 
{
  double res;
  res = rec_array_sum(myarray,0,max-1);
  return res;
}

int main () 
{
  const int dim=10;
  // cosa succede se metto:
  // const int dim=1000000;
   double myarray[dim] = 
  {1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0, 9.0, 10.0};
  
  cout << "La somma e' " << array_sum(myarray,dim) << endl;
return 0;
}