ByteDance vs Walmart Labs Interview Questions
ByteDance lists 64 LeetCode interview questions while Walmart Labs lists 144. They share 33 problems — 52% of ByteDance's bank and 23% of Walmart Labs's. Focus on the overlap first, then drill into 31 ByteDance-only and 111 Walmart Labs-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 33 overlapping problems first. These are the highest-yield questions for candidates interviewing at both ByteDance and Walmart Labs.
Step 2 — Company-specific depth: Add ByteDance-specific problems like Remove Duplicate Letters, Smallest Subsequence of Distinct Characters, First Day Where You Have Been in All the Rooms 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
33 Shared Questions
High-priority problems to practice for both ByteDance and Walmart Labs.
| Problem | Difficulty |
|---|---|
| LRU Cache | Medium |
| Number of Islands | Medium |
| Course Schedule | Medium |
| Combination Sum | Medium |
| Basic Calculator II | Medium |
| Merge Intervals | Medium |
| House Robber | Medium |
| Top K Frequent Elements | Medium |
| Two Sum | Easy |
| Longest Increasing Subsequence | Medium |
| Trapping Rain Water | Hard |
| Search in Rotated Sorted Array | Medium |
| Combination Sum II | Medium |
| Rotting Oranges | Medium |
| Longest Common Subsequence | Medium |
| Basic Calculator | Hard |
| Maximum Subarray | Medium |
| Best Time to Buy and Sell Stock | Easy |
| Decode String | Medium |
| Longest Substring Without Repeating Characters | Medium |
| Kth Largest Element in an Array | Medium |
| Trapping Rain Water II | Hard |
| Subarray Sum Equals K | Medium |
| Subsets | Medium |
| Remove K Digits | Medium |
| Longest Palindromic Substring | Medium |
| Merge k Sorted Lists | Hard |
| Reverse Linked List II | Medium |
| Find Peak Element | Medium |
| Valid Parentheses | Easy |
Showing top 30 of 33 shared problems.
Unique to ByteDance (31)
Problems in ByteDance's list that do not appear at Walmart Labs.
| Problem | Difficulty |
|---|---|
| Remove Duplicate Letters | Medium |
| Smallest Subsequence of Distinct Characters | Medium |
| First Day Where You Have Been in All the Rooms | Medium |
| Shortest Bridge | Medium |
| Maximal Square | Medium |
| Regular Expression Matching | Hard |
| Design Memory Allocator | Medium |
| Word Ladder | Hard |
| Add Two Numbers | Medium |
| Maximum Width of Binary Tree | Medium |
| Multiply Strings | Medium |
| Restore IP Addresses | Medium |
Unique to Walmart Labs (111)
Problems in Walmart Labs's list that do not appear at ByteDance.
Frequently Asked Questions
How many LeetCode questions do ByteDance and Walmart Labs share?
ByteDance and Walmart Labs share 33 LeetCode interview questions. 31 problems appear only in ByteDance's list and 111 appear only in Walmart Labs's list.
What topics overlap most between ByteDance and Walmart Labs?
The most common shared topics between ByteDance and Walmart Labs are Array (18 shared questions), String (8 shared questions), Dynamic Programming (7 shared questions), Stack (6 shared questions), Hash Table (5 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: ByteDance or Walmart Labs?
ByteDance has 4 Easy, 51 Medium, and 9 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 ByteDance and Walmart Labs?
Start with the 33 shared problems since they cover what both companies ask most often. Then add 20 ByteDance-specific and 20 Walmart Labs-specific questions to round out your prep.