Walmart Labs Coding Interview Questions (2026)
Most-reported questions and how to practice them
143 coding questions reported by candidates for Walmart Labs, sorted by how often they were reported. Source: community-sourced LeetCode company lists.
What the Walmart Labs question data shows
Of the 143 questions reported for Walmart Labs, 66% are medium, 18% are hard and 15% are easy. The most reported are Two Sum, Longest Substring Without Repeating Characters, Valid Parentheses, LRU Cache, Number of Islands.
This list comes from community-sourced LeetCode company lists. It covers coding questions only. It does not tell us how many rounds Walmart Labs runs, what each round covers, or what it pays, and those change by role, level and team, so we do not list them. Ask your recruiter what each round covers, and check the company's careers page.
Prepare for the rest of the loop with the coding interview patterns guide, the system design framework, and the STAR method guide. Written by Kieron.
Walmart Labs Interview Questions
143 LeetCode questions — sorted by frequency. Question frequency is community-sourced from public interview reports and may not reflect the current process; verify details with the employer.
Last reviewed: September 5, 2026 · Source: LeetCode company-wise interview questions (community reports) · Reviewed by the Aissence Editorial Team.
Two Sum
Longest Substring Without Repeating Characters
Valid Parentheses
LRU Cache
Number of Islands
Generate Parentheses
Search in Rotated Sorted Array
Trapping Rain Water
Number of Ways to Separate Numbers
Group Anagrams
Merge Intervals
The Winner University
Count Good Triplets in an Array
Divide Intervals Into Minimum Number of Groups
Minimum Number of Operations to Make Arrays Similar
Minimum Operations to Make Array Equal II
Maximum Number of Tasks You Can Assign
Middle of the Linked List
Count Elements With Maximum Frequency
Maximum Length Substring With Two Occurrences
Tips for Success at Walmart Labs
Start with the 30 most reported Walmart Labs questions, then work down the list.
Mediums are the bulk of the list (66%), so spend most of your time there.
Time yourself: 20 to 30 minutes per medium, then explain your solution out loud as if to an interviewer.
After each problem write down the pattern and the signal that revealed it. Patterns transfer to problems you have not seen.
Pair coding practice with a system design framework and prepared behavioral stories; most loops include more than coding.
How to Practice for Walmart Labs Interviews
Practice answering out loud with an AI interviewer built from your resume and the job description, and get a score and specific fixes for each answer. We are not affiliated with Walmart Labs, and the mock interview is general practice rather than a simulation of Walmart Labs's own format.
- ✓ Free mock interview built from your resume and the job description
- ✓ Desktop Interview Copilot for live interviews, where the rules allow it
- ✓ Behavioral practice with feedback on structure and specifics
- ✓ System design practice with follow-up questions
Frequently Asked Questions
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