message: Update maximum-average-subarray-i.py
diff: @@ -20,10 +20,7 @@ class Solution(object):
  :type k: int
  :rtype: float
  """
  - total = 0
  - for i in xrange(k):
  - total += nums[i]
  - result = total
  + result = total = sum(nums[:k])
  for i in xrange(k, len(nums)):
  total += nums[i] - nums[i-k]
  result = max(result, total)
  