Accepted Python solution.

  • 0

    Though I think the one-line Python solution using map-reduce is better. LOL

    class Solution:
        # @param s, a string
        # @return an integer
        def titleToNumber(self, s):
            result = 0
            for char in s:
                result = result*26 + (ord(char)-ord('A')+1)
            return result

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