Step 3: Solve Problems on Arrays [Easy -> Medium -> Hard]›Easy
Union of two sorted arrays
EasyFunction: unionOfTwoSortedArrays()
ASCI Mission Breakdown • Simple as Hell
"Master Union of two sorted arrays: Take `nums` (number[]), execute an optimal easy strategy, and return number[] with clean edge-case handling."
Real-World Metaphor:
Think of Union of two sorted arrays as an everyday real-world challenge: you receive input data, inspect its elements in sequence without making unnecessary duplicate passes, and transform the collection to reach the exact target without wasting computer memory.
Interactive Visual WalkthroughARRAY-POINTERS
Step 1 / 3
Union of two sorted arrays State Pipeline
start
5
[0]
2
[1]
3
[2]
1
[3]
Memory Notepad / State Tracker
Status:Initialized
Mode:Scanning
Evaluating
1. Initialize State for Union of two sorted arrays
Load inputs and initialize algorithmic registers.
How to Think About This (Mental Model)
Unpack the problem parameters (`nums` (number[])) and clarify what is given vs what must be returned.
Identify the optimal data structure or pattern (e.g. pointers, hash map, or stack) to avoid redundant recalculations.
Walk through state transitions, handle edge cases (empty collections, single items, negative numbers), and return the verified result.
Given an array of integers `nums`, sort the array in ascending order using the **Union of two sorted arrays** technique.
Return the sorted array.
Examples
Example 1
Input: nums = [5,2,3,1]
Output: [1,2,3,5]
Example 2
Input: nums = [5,1,1,2,0,0]
Output: [0,0,1,1,2,5]
Constraints
1 <= nums.length <= 5 * 10^4
-5 * 10^4 <= nums[i] <= 5 * 10^4
Topic Tags:
Solve Problems on Arrays [Easy -> Medium -> Hard]EasyunionOfTwoSortedArrays