CS368 Fall 2009

Assignment 1

Due by the beginning of class on Wed. September 16

Print out your answers (or hand write them on paper) and turn them in.

1. Give a declaration for
   • The character variable user_input, with an initial value of the letter 'a'.
   • The character variable letter_k, with the constant value 'K'.
   • An array called scores of 300 double values.
   • A structure with tag student with 3 structure members:
     the integer ID
     the integer major
     the double gpa
   • An array of 2000 student structures called honors.
2. How many array elements result from the following array declaration?

       char errormsg[] = "Bad input.\n";
   

3. Write a C++ code fragment (not a declaration) that initializes the honors array, such that the ID for each student is set to 100000 + the array index value, the major for each student is set to 20, and the gpa for each student is 0.0.
4. The wayward programmer has a program containing the following code:

      double weights[] = {16.2, 85.0, 76.3, 13.4, 18.1, 18.1,
                          19.9, 26.55, 88.1, 51.0};
   
      for ( i = 0; i < 15; i++) {
         weights[i] = weights[i+1] - 12.6;
      }
   

   • What do you expect to happen when the program containing this code is executed?
   • At what point in its execution does this code do something wrong?
   • When executed, does this program behave differently than the the closest equivalent Java code?