Apple vs Walmart Labs Interview Questions
Apple lists 300 LeetCode interview questions while Walmart Labs lists 144. They share 85 problems — 28% of Apple's bank and 59% of Walmart Labs's. Focus on the overlap first, then drill into 215 Apple-only and 59 Walmart Labs-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 85 overlapping problems first. These are the highest-yield questions for candidates interviewing at both Apple and Walmart Labs.
Step 2 — Company-specific depth: Add Apple-specific problems like Reverse Linked List, Rotate Image, Reverse Words in a String and Walmart Labs-specific problems from the exclusive lists below.
Step 3 — Difficulty tuning: Walmart Labs skews harder in our data. Budget extra time for Hard problems if you are targeting that company.
Difficulty Comparison
Top Shared Topics
85 Shared Questions
High-priority problems to practice for both Apple and Walmart Labs.
| Problem | Difficulty |
|---|---|
| LRU Cache | Medium |
| Two Sum | Easy |
| Number of Islands | Medium |
| Merge Intervals | Medium |
| Best Time to Buy and Sell Stock | Easy |
| Design Hit Counter | Medium |
| Longest Common Prefix | Easy |
| Rotate Array | Medium |
| Valid Sudoku | Medium |
| Group Anagrams | Medium |
| Top K Frequent Elements | Medium |
| Course Schedule II | Medium |
| Course Schedule | Medium |
| Valid Parentheses | Easy |
| Longest Substring Without Repeating Characters | Medium |
| Product of Array Except Self | Medium |
| Valid Palindrome | Easy |
| Kth Largest Element in an Array | Medium |
| Spiral Matrix | Medium |
| Best Time to Buy and Sell Stock II | Medium |
| Maximum Subarray | Medium |
| Reverse Integer | Medium |
| Merge k Sorted Lists | Hard |
| Meeting Rooms II | Medium |
| Trapping Rain Water | Hard |
| Subarray Sum Equals K | Medium |
| Subarray Product Less Than K | Medium |
| Median of Two Sorted Arrays | Hard |
| Find Median from Data Stream | Hard |
| Move Zeroes | Easy |
Showing top 30 of 85 shared problems.
Unique to Apple (215)
Problems in Apple's list that do not appear at Walmart Labs.
| Problem | Difficulty |
|---|---|
| Reverse Linked List | Easy |
| Rotate Image | Medium |
| Reverse Words in a String | Medium |
| Time Based Key-Value Store | Medium |
| Lowest Common Ancestor of a Binary Tree | Medium |
| Reverse Bits | Easy |
| Find First and Last Position of Element in Sorted Array | Medium |
| Snapshot Array | Medium |
| Design Circular Queue | Medium |
| Number of 1 Bits | Easy |
| Merge Two Sorted Lists | Easy |
| Word Ladder | Hard |
Unique to Walmart Labs (59)
Problems in Walmart Labs's list that do not appear at Apple.
Frequently Asked Questions
How many LeetCode questions do Apple and Walmart Labs share?
Apple and Walmart Labs share 85 LeetCode interview questions. 215 problems appear only in Apple's list and 59 appear only in Walmart Labs's list.
What topics overlap most between Apple and Walmart Labs?
The most common shared topics between Apple and Walmart Labs are Array (21 shared questions), Hash Table (7 shared questions), Sorting (6 shared questions), Two Pointers (6 shared questions), String (5 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: Apple or Walmart Labs?
Apple has 76 Easy, 178 Medium, and 46 Hard questions. Walmart Labs has 22 Easy, 96 Medium, and 26 Hard questions. Walmart Labs has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both Apple and Walmart Labs?
Start with the 85 shared problems since they cover what both companies ask most often. Then add 20 Apple-specific and 20 Walmart Labs-specific questions to round out your prep.