/////////////////////////////////////////////////////////////////////////
#include <iostream>
using namespace std;

int main()
{
   int p[] = {10, 20, 30, 40};
   int *q = p;
   int x;

/////////////////////////////////////////////////////////////////////////

   x = *q;             // x equals to the value of the integer that
                       // q points to (x = 10)
   cout << x << endl;  // number 10 is printed

/////////////////////////////////////////////////////////////////////////

   x = *q++;           // x equals to the value of the integer that
                       // q points to (x = 10),
                       // then q points to the next integer, i.e. p[1]
   cout << x << endl;  // number 10 is printed

/////////////////////////////////////////////////////////////////////////

   x = *(q++);         // x equals to the value of the integer that
                       // q points to (x = 20),
                       // then q points to the next integer, i.e. p[2]
   cout << x << endl;  // number 20 is printed

/////////////////////////////////////////////////////////////////////////

   x = (*q)++;         // x equals to the value of the integer
                       // that q points to (x = 30),
                       // then the value of p[2] is incremented by 1.
                       // No change for q
   cout << x << endl;  // number 30 is printed

/////////////////////////////////////////////////////////////////////////

   x = *q;             // x equals to the value of the integer that
                       // q points to (x = 31)
   cout << x << endl;  // number 31 is printed

/////////////////////////////////////////////////////////////////////////

   x = *++q;           // First increment q to point to the next integer,
                       // i.e. p[3], and then
                       // assign to x its value (x = 40)
   cout << x << endl;  // number 40 is printed

/////////////////////////////////////////////////////////////////////////

   x = ++*q;           // First increment the value of the integer that
                       // q points to and
                       // then assign this value to x (x = 41)
   cout << x << endl;  // number 41 is printed

   return 0;
}
/////////////////////////////////////////////////////////////////////////