The following is the grading policy for assignment 8:

(1) 30% The program is error-free for the compilation in VC environment or 
      other environments like linux or solaris.

(2) 40% The correctness of the program 

    (1) 10% how many retangles? 1
            pi= 3.4641016151

    (2) 10% how many retangles? 10
            pi= 3.1524114333

    (3) 10% how many retangles? 100
            pi= 3.1419368579

    (4) 10% how many retangles? 1000000
            pi= 3.1415926539


(3) 20% comments:
       5% Basic information
       5% problem description and I/O description.
       5% function description
       5% test description

(4) 10% style:
       2% file_name (If xxxxxxxxx_8.c, xxxxxxxxx is student's id number)
       2% is I/O interface friendly?
       3% variable-name
       3% indentation