The University of Alabama in Huntsville>
ECE Department
CPE 197 01
Spring 2001
Sample Test III Solution

1. 6, number is 128 the last time through

2. a. 4, 6, 8, 10, 12, 14, 16, 
   b. Change != to <=, Move n = n + 2; after the cout statement

3. #include <iostream>
   using namespace std;
 
   int main()
   {
      int n;
      int sumpos = 0;
      int sumneg = 0;
       
      cin >> n;
     
      while (cin)
      {
         if (n > 0)
            sumpos++;
         else if (n < 0)
            sumneg++;
         cin >> n;
      }
      cout << "The number of positive integers is " << sumpos << endl;
      cout << "The number of negative integers is " << sumneg << endl;

4. 1 3 6 10 15

5. size - value, length - reference, initial - value

6. void Test(int, int, int);   // function prototype
   int main()
   {
      int a;
      int b;
      int c;
         .
         .
         .
      Test (a, c, b); // function call
                      // a, c, and b are arguments
      Test (b, a, c); // function call
                      // b, a, and c are arguments
         .
         .
         .
    }

    // function definition follows</FONT></P>

    void Test (int d, // parameter
               int e, // parameter
               int f  // parameter)
    {
       int g; // local variable
       int h; // local variable
         .
         .
         .
    }

7. T

8. First call to Test		Second call to Test
  Parameter        Argument   Parameter      Argument
1. ____d______  _____a_____	1.  ____d______  _____b_____
2. ____e______  _____c_____	2.  ____e______  _____a_____
3. ____f______  _____b_____	3.  ____f______  _____c_____

9. The answers are 12 10 3

10. PrintMax(/* in */ int num1,
             /* in */ int num2)

11. void SkipToBlank()
    {
       char ch;
       cin.get(ch) 
       while (ch != ' ')
       { 
          cin.get(ch); 
       }

12. #include <iostream>
    using namespace std;

    void Rotate(int&, int&, int&);
 
    int main ()
    {
       int num1;
       int num2;
       int num3;
       
       cin >> num1 >> num2 >> num3;
       cout << "The values before the call to Rotate are "
            <<  num1 << ' ' << num2 << ' ' << num3 << endl;
       Rotate (num1, num2, num3);
       cout << "The values after the call to Rotate are "
            <<  num1 << ' ' << num2 << ' ' << num3 << endl;
       return 0;
    }