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Duplicates Function With Explanation
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Duplicates Function With Explanation

MediumPython

Problem

Write a function to find duplicates in an array and explain your approach.

Implement find_duplicates(nums). Return a list containing each value that appears more than once, included only once and ordered by the first time its repetition is detected.

Input is a list of integers. Return an empty list when no value is duplicated.

Signature: def find_duplicates(nums):

Constraints

  • 0 <= nums.length <= 10^4
  • -10^9 <= nums[i] <= 10^9
  • Return each duplicated value exactly once
  • Preserve the order of first duplicate detection

Function Signature

def find_duplicates(nums):
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