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Walmart Labs Interview Questions (152)

Practice real interview problems from Walmart Labs

All152 Easy22 Medium105 Hard25

Status	Title	Solution	Practice	Difficulty	Companies	Topics
	1. Two Sum	Solution	Solve	Easy	Accenture+128	Array Hash Table
	13. Roman to Integer	Solution	Solve	Easy	Accenture+44	Hash Table Math+1
	14. Longest Common Prefix	Solution	Solve	Easy	Accenture+56	String Trie
	20. Valid Parentheses	Solution	Solve	Easy	Accenture+118	Stack String
	26. Remove Duplicates from Sorted Array	Solution	Solve	Easy	Accenture+27	Array Two Pointers
	67. Add Binary	Solution	Solve	Easy	Amazon+12	Bit Manipulation Math+2
	121. Best Time to Buy and Sell Stock	Solution	Solve	Easy	Accenture+103	Array Dynamic Programming
	125. Valid Palindrome	Solution	Solve	Easy	Accenture+41	String Two Pointers
	141. Linked List Cycle	Solution	Solve	Easy	Accenture+24	Hash Table Linked List+1
	197. Rising Temperature	Solution	Solve	Easy	Accenture+11	Database
	283. Move Zeroes	Solution	Solve	Easy	Accenture+48	Array Two Pointers
	387. First Unique Character in a String	Solution	Solve	Easy	Accenture+24	Counting Hash Table+2
	543. Diameter of Binary Tree	Solution	Solve	Easy	Adobe+18	Binary Tree Depth-First Search+1
	697. Degree of an Array	Solution	Solve	Easy	Amazon+12	Array Hash Table
	876. Middle of the Linked List	Solution	Solve	Easy	Accenture+13	Linked List Two Pointers
	1122. Relative Sort Array	Solution	Solve	Easy	Amazon+5	Array Counting Sort+2
	1486. XOR Operation in an Array	Solution	Solve	Easy	Google+1	Bit Manipulation Math
	2072. The Winner University	Solution	Solve	Easy	Walmart Labs	Database
	2423. Remove Letter To Equalize Frequency	Solution	Solve	Easy	Bloomberg+3	Counting Hash Table+1
	3005. Count Elements With Maximum Frequency	Solution	Solve	Easy	Amazon+7	Array Counting+1
	3090. Maximum Length Substring With Two Occurrences	Solution	Solve	Easy	Amazon+2	Hash Table Sliding Window+1
	3696. Maximum Distance Between Unequal Words in Array I	Solution	Solve	Easy	Walmart Labs	Array String

Two Sum

Easy✓ Solution📹 Video

Accenture+128

Array Hash Table

Roman to Integer

Easy✓ Solution📹 Video

Accenture+44

Hash Table Math String

Longest Common Prefix

Easy✓ Solution📹 Video

Accenture+56

Valid Parentheses

Easy✓ Solution📹 Video

Accenture+118

Remove Duplicates from Sorted Array

Easy✓ Solution📹 Video

Accenture+27

Array Two Pointers

Add Binary

Easy✓ Solution📹 Video

Amazon+12

Bit Manipulation Math Simulation+1

Best Time to Buy and Sell Stock

Easy✓ Solution📹 Video

Accenture+103

Array Dynamic Programming

Valid Palindrome

Easy✓ Solution📹 Video

Accenture+41

String Two Pointers

Linked List Cycle

Easy✓ Solution📹 Video

Accenture+24

Hash Table Linked List Two Pointers

Rising Temperature

Easy✓ Solution📹 Video

Accenture+11

Move Zeroes

Easy✓ Solution📹 Video

Accenture+48

Array Two Pointers

First Unique Character in a String

Easy✓ Solution📹 Video

Accenture+24

Counting Hash Table Queue+1

Diameter of Binary Tree

Easy✓ Solution📹 Video

Adobe+18

Binary Tree Depth-First Search Tree

Degree of an Array

Easy✓ Solution📹 Video

Amazon+12

Array Hash Table

Middle of the Linked List

Easy✓ Solution📹 Video

Accenture+13

Linked List Two Pointers

Relative Sort Array

Easy✓ Solution📹 Video

Amazon+5

Array Counting Sort Hash Table+1

XOR Operation in an Array

Easy✓ Solution📹 Video

Google+1

Bit Manipulation Math

The Winner University

Easy✓ Solution📹 Video

Walmart Labs

Remove Letter To Equalize Frequency

Easy✓ Solution📹 Video

Bloomberg+3

Counting Hash Table String

Count Elements With Maximum Frequency

Easy✓ Solution📹 Video

Amazon+7

Array Counting Hash Table

Maximum Length Substring With Two Occurrences

Easy✓ Solution📹 Video

Amazon+2

Hash Table Sliding Window String

Maximum Distance Between Unequal Words in Array I

Easy✓ Solution📹 Video

Walmart Labs