[LeetCode] 917. Reverse Only Letters 只翻转字母



Given a string S, return the "reversed" string where all characters that are not a letter stay in the same place, and all letters reverse their positions.

Example 1:

Input: "ab-cd"
Output: "dc-ba"

Example 2:

Input: "a-bC-dEf-ghIj"
Output: "j-Ih-gfE-dCba"

Example 3:

Input: "Test1ng-Leet=code-Q!"
Output: "Qedo1ct-eeLg=ntse-T!"

Note:

  1. S.length <= 100
  2. 33 <= S[i].ASCIIcode <= 122 
  3. S doesn't contain \ or "



Github 同步地址:

https://github.com/grandyang/leetcode/issues/917



参考资料:

https://leetcode.com/problems/reverse-only-letters/



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转载自www.cnblogs.com/grandyang/p/11701412.html