Find Duplicate Values in Array | Dataford Interview Questions

Given an array of integers nums, return a list of all values that appear more than once. Each duplicate value should appear exactly once in the output, in the order its duplicate is first confirmed while scanning from left to right. If there are no duplicates, return an empty list.

Constraints

0 <= len(nums) <= 10^5
-10^9 <= nums[i] <= 10^9
The output should contain each duplicated value at most once

Function Signature

def find_duplicates(nums):

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Problem

Constraints

0 <= len(nums) <= 10^5
-10^9 <= nums[i] <= 10^9
The output should contain each duplicated value at most once

Function Signature

def find_duplicates(nums):

Your question is Find Duplicate Values 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.