message: Update number-of-wonderful-substrings.py
diff: @@ -8,7 +8,7 @@ class Solution(object):
  :rtype: int
  """
  ALPHABET_SIZE = 10
  - count = [0]*(2**ALPHABET_SIZE+1)
  + count = [0]*(2**ALPHABET_SIZE)
  count[0] = 1
  result = curr = 0
  for c in word:
  