message: Update x-of-a-kind-in-a-deck-of-cards.py
diff: -# Time: O(n)
  +# Time: O(n * (logn)^2)
  # Space: O(n)
  # In a deck of cards, each card has an integer written on it.
  @@ -48,7 +48,7 @@ class Solution(object):
  :type deck: List[int]
  :rtype: bool
  """
  - def gcd(a, b):
  + def gcd(a, b): # Time: O((logn)^2)
  while b:
  a, b = b, a % b
  return a
  