//arraysum.cpp 
//csci107, Laura Toma


#include <iostream.h>


const int size=10;


//************************************************************
//a function that reads an array of n elements from the user; 
//when calling the function, n is assumed to be known, while a[] is filled in 
void read_array(int a [], int n) {

  int i = 0; 
  cout << "Please enter an array of " << n << " elements: \n";
  while (i<n) {
    cout << "enter element " << i << ": "; 
    cin >> a[i];
    i = i+1;
  }
}


//************************************************************
//a function that prints the array a[] of n elements; 
///when calling the function, the array and n are assumed to be known
void print_array(int a[], int n) {
  
  cout << "the array is: ";
  int i=0; 
  while (i<n) {
    cout << a[i] << " ";
    i++;
  }
  cout << endl;
}


//************************************************************ 
//a function that computes and returns the sum of all elements in the array
/when calling the function, the array and n are assumed to be known
int sum_array(int a[], int n) {
  
  int sum = 0; 
  //fill in

  return sum; 
}





//************************************************************
int main() {

  //declare an array called x of size elements
  int x[size];

  //declare a variable for the sum 
  int s; 

  //read the array from user 
  read_array(x,size); 
  
  //print out the array to user
  print_array(x,size);
  
  //compute sum of all elements in x[]
  s = sum_array(x,size);

  //print out sum
  cout << "the sum of all elements in the array is: "; 
  cout << s << endl;
  
  return 1;
}