Find Duplicates in Array | Dataford Interview Questions

Can you write a function to find duplicates in an array?

Implement find_duplicates(nums) to return a list containing each duplicated value exactly once, ordered by the index where its second occurrence appears. Return an empty list when all values are unique.

Input: a list of integers. Output: a list of duplicated integers.

Constraints

0 <= len(nums) <= 1000
-10^9 <= nums[i] <= 10^9
Return each duplicated value exactly once
Preserve the order in which duplicate 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.

Problem

Can you write a function to find duplicates in an array?

Input: a list of integers. Output: a list of duplicated integers.

Constraints

0 <= len(nums) <= 1000
-10^9 <= nums[i] <= 10^9
Return each duplicated value exactly once
Preserve the order in which duplicate 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.