Find Duplicates in Array | Dataford Interview Questions

Write a simple function to find duplicates in an array.

Use the signature def find_duplicates(nums):. The input is a list of integers, and the function should return a list containing each value that appears more than once, included only once and ordered by the first time its repetition is encountered. Return an empty list when no value is duplicated.

Constraints

0 <= nums.length <= 10^4
Each element of nums is an integer
Return each duplicated value exactly once
Preserve the order in which duplicated values are first detected

Function Signature

def find_duplicates(nums):

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Problem

Write a simple function to find duplicates in an array.

Constraints

0 <= nums.length <= 10^4
Each element of nums is an integer
Return each duplicated value exactly once
Preserve the order in which duplicated values are first detected

Function Signature

def find_duplicates(nums):

Your question is Find Duplicates in Array. Start with the requirements in the Question tab.

Run and submit as often as you like. When you're ready, talk me through your approach or go straight to the code.