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Japt, 13 bytes ÆüÈc¤ñÃé ¤¬øX Try it ÆüÈc¤ñÃé ¤¬øX :Implicit input of string U Æ :Filter each character, X by ü : Group & sort U by È ...
Answer
#2: Post edited
- # [Japt](https://github.com/ETHproductions/japt), 13 [bytes](https://en.wikipedia.org/wiki/ISO/IEC_8859-1)
- ÆüÈc¤ñÃé ¤¬øX
[Try it](https://petershaggynoble.github.io/Japt-Interpreter/?v=1.4.6&code=xvzIY6Txw%2bkgpKz4WA&input=Im9BUHdTb2VIY29EcmV0TUJCb2Vzb0JzYWdIRG9ldyI)
- # [Japt](https://github.com/ETHproductions/japt), 13 [bytes](https://en.wikipedia.org/wiki/ISO/IEC_8859-1)
- ÆüÈc¤ñÃé ¤¬øX
- [Try it](https://petershaggynoble.github.io/Japt-Interpreter/?v=1.4.6&code=xvzIY6Txw%2bkgpKz4WA&input=Im9BUHdTb2VIY29EcmV0TUJCb2Vzb0JzYWdIRG9ldyI)
- ÆüÈc¤ñÃé ¤¬øX :Implicit input of string U
- Æ :Filter each character, X by
- ü : Group & sort U by
- È : Passing each character through the following function
- c : Charcode
- ¤ : To binary string
- ñ : Sort
- Ã : End grouping
- é : Rotate right
- ¤ : Slice off the first 2 elements
- ¬ : Join
- øX : Contains X?