re: Daily Challenge #60 - Find the Missing Letter VIEW POST

FULL DISCUSSION
 

Python solution :)

from typing import List


def missing_letter(letters: List[str]) -> str:
  number_rep = [ord(letter) for letter in letters]
  letters_range = range(number_rep[0], number_rep[-1])
  original_set = set(number_rep)

  missing = sorted(set(letters_range) - original_set).pop()
  return chr(missing)
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