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Grokking the Coding Interview Patterns in C#

Permutations II

Explore how to generate all unique permutations from a list that may contain duplicates. Learn to handle constraints and optimize your solution for coding interviews using efficient algorithms.

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Statement

For a given integer list, nums, which might contain duplicates, return all possible unique permutations derived from nums.

Note: The order in which the permutations appear doesn’t matter.

Constraints:

  • 1≤ ...