Join Two Arrays by ID — LeetCode 2722 Python Solution
MediumJavaScript
- Problem
- #2722
- Reading time
- 2 min
- Source
- leetcode.com
The problem
Given two arrays arr1 and arr2, return a new array joinedArray. All the objects in each of the two inputs arrays will contain an id field that has an integer value.
Example
- Input
- arr1 = [
- Output
- [
- Explanation
- There are no duplicate ids so arr1 is simply concatenated with arr2.
Complexity
| Measure | Complexity |
|---|---|
| Time | O(n) |
| Space | O(1) to O(n) auxiliary |
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