Files in this directory:
Q_and_A.txt:	this file. Q&A on the project, latest one on top.
in[12].txt:	sample input files used in the project description.
out[12345].txt:	sample output files for phase 1
option[12345].txt:user selection to generate output files
	a.out 3 in1.txt out1.txt < option1.txt
	a.out 6 in2.txt out2.txt < option2.txt
	a.out 6 in2.txt out3.txt   //manually enter options in option3.txt
	a.out 6 in2.txt out4.txt < option4.txt

in45.txt:	a large input file with 45 matrices
	a.out 45 in45.txt out5.txt < option5.txt

out1B.txt:	the same sample output file with Bonus features
out1B[12].txt:	same output with only Bonus feature 1 or 2
*************************************************************************
Grading rubrics of Phase 1: Total 50 points
 5 points: coding styles and document
10 points: compilation without any error or warning
 4 points: safty check on the command line
14 points: produce out1.txt with in1.txt and option1.txt as user selection
	This can be done with the following command
   a.out 3 in1.txt myout.txt < option1.txt
12 points: more test cases with in2.txt as input (6 matrices) and various
	user selection options
 5 points: more test cases with in45.txt as input (45 matrices)



Thu Feb 26 13:25:24 EST 2026
Q2. What needs to be put into the output file?
A.  In the (latest version of) the project description, it states
For each operation, you first print the name of the operation, the 
operand(s) and then the result of the operation. 
    Read the sample output files for more details.

Thu Feb 26 12:53:47 EST 2026
Q1. out1B.txt has both Bonus features. Can you post the output file with
	each of the Bonus feature separately?
A. Done. See out1B1.txt and out1B2.txt.
   When we grade the project, we will not do a file difference like the way
	HW1 was graded. Instead, most likely we will check the output file(s)
	visually to see whether these Bonus features are implemented correctly.