First Unique Character in a String leetcode| first unique character in a string python | May Day 5

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Hi,
How about using collections.counter for identifying element with count 1 and enumerate to find the index of the letter which is equal to 1.

dict1=dict(Counter(s))
dict2={x[1]:x[0] for x in list(enumerate(s))}
for x in s:
if dict1[x]==1:
return dict2[x]

return -1

chaitanyareddy

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