Question: 
Write a python function to find the average of even numbers till a given even number.


Model's Code:
def average_Even(n):
    if n < 2 or n % 2 != 0:
        return 0
    total = sum(range(2, n + 1, 2))
    count = n // 2
    return total // count



Sample Correct Code:
def average_Even(n) : 
    if (n% 2!= 0) : 
        return ("Invalid Input") 
        return -1  
    sm = 0
    count = 0
    while (n>= 2) : 
        count = count+1
        sm = sm+n 
        n = n-2
    return sm // count 


Asserts:
assert average_Even(2) == 2
assert average_Even(4) == 3
assert average_Even(100) == 51


Tests:
Test 1 of 3: PASS
Test 2 of 3: PASS
Test 3 of 3: PASS

Test 664 of 974: 497/664 (74.84939759036145%): success