message: Update maximum-profit-from-trading-stocks.py
diff: -# Time: O(n)
  -# Space: O(1)
  +# Time: O(n * b)
  +# Space: O(b)
  import itertools
  @@ -22,8 +22,8 @@ class Solution(object):
  return dp[-1]
  -# Time: O(n)
  -# Space: O(1)
  +# Time: O(n * b)
  +# Space: O(b)
  import itertools
  