ProblemSolving

387. First Unique Character in a String.py

class Solution:
    def firstUniqChar(self, s: str) -> int:
        sdict = {}
        count = 0
        arr = []
        for i in s:
            arr.append(i)
            if i in sdict:
                sdict[i] = sdict[i] + 1
            else:
                sdict[i] = 1
            
        print(sdict, arr)
        for i in range(len(arr)):
            count += 1
            if sdict[arr[i]] == 1:
                return count - 1
        return -1