Chapter 3.2, Problem 20STE

Though we urge you not to program using this style, we are providing an exercise that uses nested blocks to help you understand the scope rules. Give the output that this code fragment would produce if embedded in an otherwise complete, correct program.

{

  int x = 1;

  cout << x << endl;

  {

  cout << x << endl;

  int x = 2;

  cout << x << endl ;

  {

  cout << x << endl ;

  int x = 3;

cour << x << endl ;

  }

  cout << x << endl;

  }

  cout << x << endl ;

}