LC 0387 [E] First Unique Character in a String - ALawliet/algorithms GitHub Wiki
class Solution:
def firstUniqChar(self, s: str) -> int:
d = OrderedDict()
for i, x in enumerate(s):
if x in d:
d[x].append(i)
else:
d[x] = [i]
for k, v in d.items():
if len(v) == 1:
return v[0]
return -1
def firstUniqChar(self, s):
alphabet = string.ascii_lowercase
index = [s.index(l) for l in alphabet if s.count(l) == 1]
return min(index) if len(index) > 0 else -1