Swift in the array to re-program

When developed using Swift input pocketed,I met a very interesting question -Deduplication

All to known,Candidate input method in the calculation will always be out there may be a duplicate options (such as code table and have a word in the lexicon,They may be different coding,But the word is the same and the like),This time you need to re,But while keeping the same order of candidates。

Others solutions

If you go online to find,Then[……]

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