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  1. Prepare
  2. Algorithms
  3. Strings
  4. Alternating Characters
  5. Discussions

Alternating Characters

  • alex_k5
     + 0 comments
    def alternatingCharacters(s):
    s2 = re.sub(r'([AB])\1+', r'\1', s)
    return len(s) - len(s2)