1   // Fig. 3.4: fig03_04.cpp
2   // Finding the maximum of three integers
3   #include <iostream.h>
4   
5   int maximum( int, int, int );   // function prototype
6   
7   int main()
8   {
9      int a, b, c;
10  
11     cout << "Enter three integers: ";
12     cin >> a >> b >> c;
13  
14     // a, b and c below are arguments to 
15     // the maximum function call
16     cout << "Maximum is: " << maximum( a, b, c ) << endl;
17  
18     return 0;
19  }
20  
21  // Function maximum definition
22  // x, y and z below are parameters to 
23  // the maximum function definition
24  int maximum( int x, int y, int z )
25  {
26     int max = x;
27  
28     if ( y > max )
29        max = y;
30  
31     if ( z > max )
32        max = z;
33  
34     return max;
35  }