Visa vs Walmart Labs Interview Questions
Visa lists 146 LeetCode interview questions while Walmart Labs lists 144. They share 49 problems — 34% of Visa's bank and 34% of Walmart Labs's. Focus on the overlap first, then drill into 97 Visa-only and 95 Walmart Labs-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 49 overlapping problems first. These are the highest-yield questions for candidates interviewing at both Visa and Walmart Labs.
Step 2 — Company-specific depth: Add Visa-specific problems like Text Justification, Length of Longest V-Shaped Diagonal Segment, Rotating the Box 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
49 Shared Questions
High-priority problems to practice for both Visa and Walmart Labs.
| Problem | Difficulty |
|---|---|
| Two Sum | Easy |
| 3Sum | Medium |
| Longest Substring Without Repeating Characters | Medium |
| Best Time to Buy and Sell Stock | Easy |
| LRU Cache | Medium |
| Group Anagrams | Medium |
| Merge Intervals | Medium |
| Trapping Rain Water | Hard |
| Maximum Subarray | Medium |
| Largest Rectangle in Histogram | Hard |
| Longest Palindromic Substring | Medium |
| Number of Islands | Medium |
| Valid Parentheses | Easy |
| Longest Common Prefix | Easy |
| Spiral Matrix | Medium |
| Course Schedule | Medium |
| Container With Most Water | Medium |
| Sort Colors | Medium |
| Subarray Sum Equals K | Medium |
| Diameter of Binary Tree | Easy |
| Product of Array Except Self | Medium |
| Find Median from Data Stream | Hard |
| Best Time to Buy and Sell Stock II | Medium |
| Top K Frequent Elements | Medium |
| Add Binary | Easy |
| Median of Two Sorted Arrays | Hard |
| Daily Temperatures | Medium |
| Reverse Nodes in k-Group | Hard |
| Sliding Window Maximum | Hard |
| Longest Increasing Subsequence | Medium |
Showing top 30 of 49 shared problems.
Unique to Visa (97)
Problems in Visa's list that do not appear at Walmart Labs.
Unique to Walmart Labs (95)
Problems in Walmart Labs's list that do not appear at Visa.
Frequently Asked Questions
How many LeetCode questions do Visa and Walmart Labs share?
Visa and Walmart Labs share 49 LeetCode interview questions. 97 problems appear only in Visa's list and 95 appear only in Walmart Labs's list.
What topics overlap most between Visa and Walmart Labs?
The most common shared topics between Visa and Walmart Labs are Array (21 shared questions), Hash Table (6 shared questions), Two Pointers (6 shared questions), Sorting (6 shared questions), String (6 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: Visa or Walmart Labs?
Visa has 32 Easy, 92 Medium, and 22 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 Visa and Walmart Labs?
Start with the 49 shared problems since they cover what both companies ask most often. Then add 20 Visa-specific and 20 Walmart Labs-specific questions to round out your prep.