Amazon vs Walmart Labs Interview Questions
Amazon lists 1,968 LeetCode interview questions while Walmart Labs lists 144. They share 134 problems — 7% of Amazon's bank and 93% of Walmart Labs's. Focus on the overlap first, then drill into 1,834 Amazon-only and 10 Walmart Labs-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 134 overlapping problems first. These are the highest-yield questions for candidates interviewing at both Amazon and Walmart Labs.
Step 2 — Company-specific depth: Add Amazon-specific problems like Add Two Numbers, Reorganize String, Koko Eating Bananas and Walmart Labs-specific problems from the exclusive lists below.
Step 3 — Difficulty tuning: Amazon skews harder in our data. Budget extra time for Hard problems if you are targeting that company.
Difficulty Comparison
Top Shared Topics
134 Shared Questions
High-priority problems to practice for both Amazon and Walmart Labs.
| Problem | Difficulty |
|---|---|
| Two Sum | Easy |
| LRU Cache | Medium |
| Trapping Rain Water | Hard |
| Number of Islands | Medium |
| Longest Substring Without Repeating Characters | Medium |
| Best Time to Buy and Sell Stock | Easy |
| Group Anagrams | Medium |
| 3Sum | Medium |
| Longest Palindromic Substring | Medium |
| Merge Intervals | Medium |
| Container With Most Water | Medium |
| Median of Two Sorted Arrays | Hard |
| Valid Parentheses | Easy |
| Course Schedule | Medium |
| Merge k Sorted Lists | Hard |
| Longest Common Prefix | Easy |
| Rotting Oranges | Medium |
| Subarray Sum Equals K | Medium |
| Search in Rotated Sorted Array | Medium |
| Top K Frequent Elements | Medium |
| Maximum Subarray | Medium |
| Longest Consecutive Sequence | Medium |
| Copy List with Random Pointer | Medium |
| Generate Parentheses | Medium |
| Product of Array Except Self | Medium |
| Jump Game | Medium |
| House Robber | Medium |
| Course Schedule II | Medium |
| Word Search | Medium |
| Sliding Window Maximum | Hard |
Showing top 30 of 134 shared problems.
Unique to Amazon (1,834)
Problems in Amazon's list that do not appear at Walmart Labs.
| Problem | Difficulty |
|---|---|
| Add Two Numbers | Medium |
| Reorganize String | Medium |
| Koko Eating Bananas | Medium |
| Merge Sorted Array | Easy |
| Lowest Common Ancestor of a Binary Tree | Medium |
| Palindrome Number | Easy |
| Word Ladder | Hard |
| Majority Element | Easy |
| Merge Two Sorted Lists | Easy |
| Climbing Stairs | Easy |
| Letter Combinations of a Phone Number | Medium |
| Valid Anagram | Easy |
Unique to Walmart Labs (10)
Problems in Walmart Labs's list that do not appear at Amazon.
Frequently Asked Questions
How many LeetCode questions do Amazon and Walmart Labs share?
Amazon and Walmart Labs share 134 LeetCode interview questions. 1834 problems appear only in Amazon's list and 10 appear only in Walmart Labs's list.
What topics overlap most between Amazon and Walmart Labs?
The most common shared topics between Amazon and Walmart Labs are Array (21 shared questions), Hash Table (8 shared questions), Dynamic Programming (7 shared questions), String (7 shared questions), Two Pointers (4 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: Amazon or Walmart Labs?
Amazon has 527 Easy, 1074 Medium, and 367 Hard questions. Walmart Labs has 22 Easy, 96 Medium, and 26 Hard questions. Amazon has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both Amazon and Walmart Labs?
Start with the 134 shared problems since they cover what both companies ask most often. Then add 20 Amazon-specific and 10 Walmart Labs-specific questions to round out your prep.