Question: 
Write a python function to find the difference between largest and smallest value in a given array.


Model's Code:
def big_diff(arr):
    return max(arr) - min(arr)



Sample Correct Code:
def big_diff(nums):
     diff= max(nums)-min(nums)
     return diff


Asserts:
assert big_diff([1,2,3,4]) == 3
assert big_diff([4,5,12]) == 8
assert big_diff([9,2,3]) == 7


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

Test 588 of 974: 437/588 (74.31972789115646%): success