Here is the generic grading scheme for problem set 1:

Deductions:

A. Program doesn't compile - 1 point
B. Squares don't stay within the glOrtho volume - 1 point
C. Aspect ratio off - 1 point
D. Randomly generated squares do not vary size or position - 3 points
E. Nothing but black background (i.e. all squares are outside glOrtho
view) - 5 points