CSCI 112
Lab 8 - Grade Multiple Choice Exam

Objectives:

Grade an n-question multiple-choice exam (for n between 1 and 50). Provide feedback about the most frequently missed questions.

Readings:

Read Chapter 8 in the Hanly/Koffman text.

Deliverables (DUE BY MIDNIGHT ON 03/28/2013):

Submittal of the following files:

Makefile
Proto.h
Lab8.c
GetAnswers.c

TO DO (for this lab)

Design and Write a program to solve Programming Project #1 on pages 443-444 in the 7th edition, or on pages 436-437 in the 6th edition, or on pages 422-423 of the 5th edition of the Hanly/Koffman text. Assume that the n (the number of questions in the test) can be between 5 and 50 (different book editions have different ranges).
The book mentions "an open input file" and an additional case when you may need to call function fgetAnswers. I want you to use redirection to read from a data file and to write to a data file. This means you use regular scanf and printf functions. There is no need to worry about any other data/input the textbook's authors want you to read from. fgetAnswers needs to read only from a keyboard or a re-directed file.
To read and write from/to files, you run your program by doing:

$ Lab8 < examdat.txt > report.txt

Sample input file (e.g. examdat.txt):

5 dbbac

111 dabac

102 dcbdc

251 dbbac

The first line of input file includes: (1) the number of questions that were given during a test, (2) single space, and (3) the correct answers listed one after another (no space there!). Assume, there cannot be more than 50 questions, and that the number of students is unknown (i.e. you cannot declare a constant here!). Assume every student ID is a unique, 3-digit integer. The rest you can learn from the textbook... :)

Sample output file (e.g. report.txt):

Exam Report

Question   1  2  3  4  5

Answer     d  b  b  a  c

 ID   Score(%)

111     80

102     60

251    100

Question   1  2  3  4  5

Missed by  0  2  0  1  0

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