LeetCode #387: First Unique Character in a String
β’ 37 words β’ 1 min
LeetCode #387: First Unique Character in a String:
python
from collections import Counter
class Solution:
def firstUniqChar(self, s: str) -> int:
counter = Counter(s)
for i, c in enumerate(s):
if counter[c] == 1:
return i
return -1