Python solution

  • 0
    class Solution(object):
        def firstUniqChar(self, s):
            :type s: str
            :rtype: int
            count_dict = {}
            # create char count
            for char in s:
                count_dict[char] = count_dict.get(char,0) +1
            # find char with count 1
            for i,char in enumerate(s):
                if count_dict[char] == 1:
                    return i
            return -1

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