Union Distinct
MediumData EngineeringArraySorting
Description
Given two arrays, return their union with duplicates removed, preserving the order of first appearance across the first array followed by the second.
Examples
Input:
[1,2,3], [3,4,5]Output:
[1,2,3,4,5]Explanation:
Values from both arrays are combined and each distinct one is kept the first time it appears.
Input:
[1,1,2], [2,3]Output:
[1,2,3]Explanation:
Values from both arrays are combined and each distinct one is kept the first time it appears.
Input:
[1,2], [1,2]Output:
[1,2]Explanation:
Values from both arrays are combined and each distinct one is kept the first time it appears.
Constraints
- •
0 ≤ each length ≤ 10⁴
Ready to solve this problem?
Practice solo and sharpen your skills for technical interviews.