//myPointerToArray1.cpp
#include <iostream>
using namespace std;
// pointer to an array using while loop 
int main()
{
//const int size = 4; 
int x1=2, x2= 4, x3= 6, x4 = 8;
cout<< "" <<" x1,x2,x3,x4 \n " 
<< x1 << ", "<<x2<<", "<< x3 << ", "<< x4 <<endl; 
int n1[4] = { x1,x2,x3,x4}; 
int *ptr1, i=0; 
// looping with for 
while(i < 4)
{
ptr1 = &n1[i]; 
 *ptr1 *= 2; 
  cout<<"\n array element :  "<<n1[i] << ","; 
  cout<<" "<<" pointer value "<< *ptr1;; 
  i++; 
  
}
cout<<"\n last pointer "<< *ptr1; 	
return 0; 

}