Question: 
Write a python function to count the number of rectangles in a circle of radius r.


Model's Code:
def count_Rectangles(r):
    if r == 0:
        return 0
    elif r == 1:
        return 1
    else:
        return 8 * (r - 1) + 1



Sample Correct Code:
def count_Rectangles(radius):  
    rectangles = 0 
    diameter = 2 * radius 
    diameterSquare = diameter * diameter 
    for a in range(1, 2 * radius):  
        for b in range(1, 2 * radius): 
            diagnalLengthSquare = (a * a +  b * b)  
            if (diagnalLengthSquare <= diameterSquare) : 
                rectangles += 1
    return rectangles 


Asserts:
assert count_Rectangles(2) == 8
assert count_Rectangles(1) == 1
assert count_Rectangles(0) == 0


Tests:
Test 1 of 3: FAIL: AssertionError()

Test 355 of 974: 256/355 (72.11267605633803%): failed