WALMART GLOBAL TECH · CODING QUESTIONS

Walmart Global Tech coding interview questions

The data structures and algorithms questions candidates report from Walmart Global Tech interviews, linked to AlgoRung problems with an editor, hidden tests, an animated walkthrough and solutions in four languages. Most asked topics: Arrays & Hashing, Stack, Trees & BST, Heaps.

From public candidate reports and Walmart Global Tech's careers pages, checked November 2026. Processes vary by team. AlgoRung is not affiliated with Walmart Global Tech.

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All 8 reported Walmart Global Tech coding questions

Difficulty

Topic

Asked at 2+ companies Hide solved 8 questions

First Missing Positive Hard Arrays & Hashing also Microsoft, Flipkart
Next Greater Element I Easy Monotonic Stack also Oracle, Adobe
LRU Cache Medium Design Data Structures also Amazon, Microsoft, Apple +4
Implement Queue using Stacks Easy Stack also Goldman Sachs
Lowest Common Ancestor of a Binary Tree Medium Trees & BST also Google, Meta, Netflix +1
N-Queens Hard Recursion & Backtracking
Binary Tree Zigzag Level Order Traversal Medium Trees & BST also Amazon
Best Time to Buy and Sell Stock Easy Dynamic Programming also Amazon, Apple, Netflix

Also reported, not on AlgoRung yet (2)

Find Median from Data Stream · Partition Equal Subset Sum

How the coding round is scored · The online assessment

Questions people ask

What coding questions does Walmart Global Tech ask?

Candidates most often report First Missing Positive, Next Greater Element I, LRU Cache, Implement Queue using Stacks, Lowest Common Ancestor of a Binary Tree. The full list of 8 reported questions is on this page, each linked to a practice problem with solutions.

Which topics should I study for the Walmart Global Tech coding interview?

arrays, stacks, trees, heaps, dynamic programming, backtracking. A 45 to 60 minute live interview where you solve one or two data-structures-and-algorithms problems while explaining your thinking. Interviewers score problem solving, code quality, testing and communication.

How hard are Walmart Global Tech coding questions?

Of the reported questions on AlgoRung, 3 are easy, 3 medium and 2 hard. Expect mostly medium problems, with follow-ups that change a constraint.

Coding questions at other companies

Coding questions across all companies · Behavioral questions