Return Duplicated Array | Dataford Interview Questions

How would you return a duplicated array?

Implement def duplicate_array(nums): to return a new array containing two consecutive copies of every integer in nums, preserving order and leaving the input unchanged. For example, [1, 2, 3] becomes [1, 1, 2, 2, 3, 3], while an empty input returns an empty array. The input length is at most 1,000, and values may be any integers.

Constraints

0 <= len(nums) <= 1,000
-10^9 <= nums[i] <= 10^9
Return a new array and do not modify nums
The output contains exactly 2 * len(nums) elements

Function Signature

def duplicate_array(nums):

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Problem

How would you return a duplicated array?

Constraints

0 <= len(nums) <= 1,000
-10^9 <= nums[i] <= 10^9
Return a new array and do not modify nums
The output contains exactly 2 * len(nums) elements

Function Signature

def duplicate_array(nums):

Your question is Return Duplicated 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.