1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
|
// Exercise 3.50: ex03_50.cpp
// What does this program do?
#include <iostream>
using std::cout;
using std::cin;
using std::endl;
int mystery( int, int ); // function prototype
int main()
{
int x, y;
cout << "Enter two integers: ";
cin >> x >> y;
cout << "The result is " << mystery( x, y ) << endl;
return 0; // indicates successful termination
} // end main
// Parameter b must be a positive
// integer to prevent infinite recursion
int mystery( int a, int b )
{
// base case
if ( b == 1 )
return a;
// recursive step
else
return a + mystery( a, b - 1 );
} // end function mystery
/**************************************************************************
* (C) Copyright 1992-2003 by Deitel & Associates, Inc. and Prentice *
* Hall. All Rights Reserved. *
* *
* DISCLAIMER: The authors and publisher of this book have used their *
* best efforts in preparing the book. These efforts include the *
* development, research, and testing of the theories and programs *
* to determine their effectiveness. The authors and publisher make *
* no warranty of any kind, expressed or implied, with regard to these *
* programs or to the documentation contained in these books. The authors *
* and publisher shall not be liable in any event for incidental or *
* consequential damages in connection with, or arising out of, the *
* furnishing, performance, or use of these programs. *
*************************************************************************/
|
