CSE 232 Spring 2012

Computer Project #5 -- Records and Arrays

Assignment Overview:

  This assignment focuses on the design, implementation and testing of C++
  programs which process data sets using records and arrays.  You will develop
  the C++ functions which constitute a program to process a set of data
  values, as described below.

  It is worth 50 points (5% of course grade), and must be completed no later
  than 11:59 PM on Thursday, February 23.

Assignment Specifications:

  1) The program will input and process a data set representing information
  about the students enrolled in a course.  The data set will include the
  following information for each student:

    Student identification number (unsigned integer)
    Quiz #1 score (integer)
    Quiz #2 score (integer)
    Quiz #3 score (integer)
    Quiz #4 score (integer)

  Student identification numbers will range from 10000 to 99999 (inclusive).
  Quiz scores will range from 0 to 50 (inclusive); a quiz score of -1 will
  indicate that the score is missing and should not be included in any
  calculations.

  A valid data set will contain from 1 to 20 student records.  For example,
  one valid data set might appear as follows:

    10000  45  41  48  50
    10015  50  37  -1  42
    10009  34  42  39  33

  The program will use a record to represent the information about one
  student, and an array of records to represent the information about all
  students.

  2) The program will perform appropriate error checking: if the data set is
  not valid, the program will display an appropriate message and halt.  A data
  set is not valid if it contains an invalid number of student records, or if
  any of the student identification numbers are invalid.

  3) The program will display a table of information about the data set.  For
  each student, the program will display one line which contains the
  following:

    Student identification number
    All four quiz scores for that student
    Average quiz score for that student

  The information in the table will be aligned in columns (with column
  headers), and the average quiz score will be displayed with one decimal
  place of accuracy.



  4) The program will display a summary about the data set.  For each of the
  four quizzes, the program will display the following information:

    a. The average of the scores on that quiz
    b. The standard deviation of the scores on that quiz
    c. The high score on that quiz
    d. The identification number of each student with the high score
    e. The low score on that quiz
    f. The identification number of each student with the low score

  Each of the items above will appear on a line by itself and will be labeled
  appropriately.

  All of the information about Quiz #1 will appear before the information
  about Quiz #2, the information about Quiz #2 will appear before the
  information about Quiz #3, and so on.

  All floating point values in the summary will be displayed with two decimal
  places of accuracy.

  5) The program will be designed to accept input from a file using input
  redirection on the command line.

Assignment Deliverables:

  The deliverables for this assignment include the following:

    proj05.makefile -- your makefile which produces "proj05"
    proj05.*.cpp    -- the source code file(s) for your solution
    proj05.*.h      -- the interface file(s) for your solution

  Be sure to use the specified file names, and to submit your files for
  grading via the "handin" program.

Assignment Notes:

  1) The focus of this project is on the use of records and arrays, rather
  than more complex data structures.  You may not use any of the containers
  from the Standard Template Library, such as the Vector class template.

  2) Use the following definitions for this project:

    a. The average of a set of values is defined as the arithmetic mean of all
    elements in the set.

    b. The variance of a set of values is defined as the arithmetic mean of
    the squares of the deviations of the set elements from the arithmetic mean
    of the data set.

    c. The standard deviation of a data set is defined as the square root of
    the variance of that data set.

  3) You may assume that all four quiz scores appear for each student in each
  record (although some of the scores may be -1 to indicate a missing score).

  4) You will execute your program using input redirection:

    <prompt> proj05 < data_file

  where "proj05" is the name of your executable program and "data_file" is the
  name of a file containing a data set.