problem47

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v1.6.3 Latest Latest Go to latest Published: May 30, 2020 License: MIT Imports: 0 Imported by: 0

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Given a collection of numbers that might contain duplicates, return all possible unique permutations.

Example:

Input: [1,1,2]
Output:
[
  [1,1,2],
  [1,2,1],
  [2,1,1]
]

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