Homework 3
Due Monday, September 30, 2002

Each of the following code fragments is invalid.  For each one, explain what's
wrong.  (Each one is a completely separate and independent question.  Where
applicable, assume that any needed variables have already been declared.)

    a.  int true;  // define var. to count number of times user answered 'true'

    b.  const int conversion_factor(1.61); // use to convert from miles to km

    c.  int acct_balance = 32,167;  // declare and initialize account balance

    d.  cout << "Thank you for using this program!\endl";

    e.  num1*num2 = ratio;

    f.  double hour;          // hour of the day, in military time
        // input current time from user:
        cout << "Please input the current hour: ";
        cin >> hour;
        hour = hour%12;  // convert to 12-hour clock

    g.  cout << "Please enter your name: "

    h.  if (age < 18);                             // check voting age
          cout << "You're too young to vote!\n";  // output message if too young

Do problems 7, 13, 15ce, 18b, 19, 21, 22 from Chapter 2 of the textbook.
Do problems 2ac, 5 from Chapter 4 of the textbook.