Walmart Interview Guide

Showing 3 questions

Ranking

A question's ranking corresponds to how commonly it's asked by Walmart. The higher the ranking, the more likely you'll encounter it in a Walmart interview.

Question

Frequency

Difficulty

Longest Substring Without Repeating Characters

Find the length of the longest substring within a given string that contains no repeating characters. The substring must be contiguous.

StringsTwo PointersSliding Windows

Very likely

If you have a Walmart interview, it's very likely that you will get this question

Medium

#1. Longest Substring Without Repeating Characters

Medium

Find the length of the longest substring within a given string that contains no repeating characters. The substring must be contiguous.

StringsTwo PointersSliding Windows

This question is very likely to be asked in your Walmart interview

LRU Cache

Design a data structure that acts as a Least Recently Used (LRU) cache. Implement methods to get and put key-value pairs, evicting the least recently used entry when the cache is full.

Linked ListsArrays

Very likely

If you have a Walmart interview, it's very likely that you will get this question

Medium

#2. LRU Cache

Medium

Design a data structure that acts as a Least Recently Used (LRU) cache. Implement methods to get and put key-value pairs, evicting the least recently used entry when the cache is full.

Linked ListsArrays

This question is very likely to be asked in your Walmart interview

Valid Parentheses

Determine if a string containing parentheses is valid. A valid string has matching and properly nested opening and closing parentheses.

StringsStacks

Very likely

If you have a Walmart interview, it's very likely that you will get this question

Easy

#3. Valid Parentheses

Easy

Determine if a string containing parentheses is valid. A valid string has matching and properly nested opening and closing parentheses.

StringsStacks