11.The benefit of using enumeration data types in a program is

12.void foo (int x, int & y) { int c; c = x + y; y = 2 * c; x = 2 * x; } The declaration �void foo (int x, int & y)� is called a

13.void foo (int x, int & y) { int c; c = x + y; y = 2 * c; x = 2 * x; } �x� and �y� are called

14.What is the value of �ptr� after the execution of the following code? int *const ptr = 5; Now if the address of �ptr� is 2000, then ptr-- is