Leetcode - Reverse Only Letters (Python)

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September 2021 Leetcode Challenge
Leetcode - Reverse Only Letters #917
Difficulty: Easy
  1. Timothy H Chang
  2. leetcode
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Автор

This was what I came up with. :)
def reverseOnlyLetters(self, s: str) -> str:
i = 0
j = len(s) - 1
answer = ""
while i < len(s):
if not s[i].isalpha():
answer += s[i]
i += 1
elif s[i].isalpha() and s[j].isalpha():
answer += s[j]
j -= 1
i +=1
elif s[i].isalpha() and not s[j].isalpha():
j -= 1
return answer

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