Interview Prep/Companies/Walmart Labs

Walmart Labs

100 questions tracked95 with solutions

🔍

Frequency scoreSorted highest → lowest frequency✓ Our Solution = we have a detailed walkthrough

Showing 100 of 100 questions

MediumLongest Substring Without Repeating Characters✓ Our Solution

100

Hash TableStringSliding Window

LeetCode ↗37% acc.

MediumLRU Cache✓ Our Solution

Hash TableLinked ListDesignDoubly-Linked List

LeetCode ↗45% acc.

EasyValid Parentheses✓ Our Solution

StringStack

LeetCode ↗42% acc.

HardMax Stack

Linked ListStackDesignDoubly-Linked List+1

LeetCode ↗46% acc.

MediumMerge Intervals✓ Our Solution

ArraySorting

LeetCode ↗49% acc.

HardTrapping Rain Water✓ Our Solution

ArrayTwo PointersDynamic ProgrammingStack+1

LeetCode ↗65% acc.

EasyBest Time to Buy and Sell Stock✓ Our Solution

ArrayDynamic Programming

LeetCode ↗55% acc.

EasyTwo Sum✓ Our Solution

ArrayHash Table

LeetCode ↗56% acc.

MediumLongest Palindromic Substring✓ Our Solution

Two PointersStringDynamic Programming

LeetCode ↗36% acc.

MediumWord Break✓ Our Solution

ArrayHash TableStringDynamic Programming+2

LeetCode ↗48% acc.

MediumDivide Intervals Into Minimum Number of Groups✓ Our Solution

ArrayTwo PointersGreedySorting+2

LeetCode ↗64% acc.

HardMinimum Number of Operations to Make Arrays Similar✓ Our Solution

ArrayGreedySorting

LeetCode ↗60% acc.

HardCount Good Triplets in an Array✓ Our Solution

ArrayBinary SearchDivide and ConquerBinary Indexed Tree+3

LeetCode ↗66% acc.

MediumMinimum Operations to Make Array Equal II✓ Our Solution

ArrayMathGreedy

LeetCode ↗32% acc.

HardMaximum Number of Tasks You Can Assign✓ Our Solution

ArrayTwo PointersBinary SearchGreedy+3

LeetCode ↗51% acc.

EasyMiddle of the Linked List✓ Our Solution

Linked ListTwo Pointers

LeetCode ↗81% acc.

HardNumber of Ways to Separate Numbers✓ Our Solution

StringDynamic ProgrammingSuffix Array

LeetCode ↗21% acc.

EasyThe Winner University

Database

LeetCode ↗75% acc.

MediumGenerate Parentheses✓ Our Solution

StringDynamic ProgrammingBacktracking

LeetCode ↗77% acc.

MediumKth Largest Element in an Array✓ Our Solution

ArrayDivide and ConquerSortingHeap (Priority Queue)+1

LeetCode ↗68% acc.

MediumSearch in Rotated Sorted Array✓ Our Solution

ArrayBinary Search

LeetCode ↗43% acc.

MediumGroup Anagrams✓ Our Solution

ArrayHash TableStringSorting

LeetCode ↗71% acc.

MediumNumber of Islands✓ Our Solution

ArrayDepth-First SearchBreadth-First SearchUnion Find+1

LeetCode ↗62% acc.

MediumSpiral Matrix✓ Our Solution

ArrayMatrixSimulation

LeetCode ↗54% acc.

MediumLongest Consecutive Sequence✓ Our Solution

ArrayHash TableUnion Find

LeetCode ↗47% acc.

MediumSort Colors✓ Our Solution

ArrayTwo PointersSorting

LeetCode ↗68% acc.

MediumValid Sudoku✓ Our Solution

ArrayHash TableMatrix

LeetCode ↗62% acc.

MediumCoin Change✓ Our Solution

ArrayDynamic ProgrammingBreadth-First Search

LeetCode ↗46% acc.

MediumBinary Tree Zigzag Level Order Traversal✓ Our Solution

TreeBreadth-First SearchBinary Tree

LeetCode ↗62% acc.

EasyMove Zeroes✓ Our Solution

ArrayTwo Pointers

LeetCode ↗63% acc.

MediumCombination Sum✓ Our Solution

ArrayBacktracking

LeetCode ↗75% acc.

MediumRotate Array✓ Our Solution

ArrayMathTwo Pointers

LeetCode ↗43% acc.

EasyDegree of an Array✓ Our Solution

ArrayHash Table

LeetCode ↗57% acc.

MediumAll Nodes Distance K in Binary Tree✓ Our Solution

Hash TableTreeDepth-First SearchBreadth-First Search+1

LeetCode ↗66% acc.

Medium3Sum✓ Our Solution

ArrayTwo PointersSorting

LeetCode ↗37% acc.

MediumTop K Frequent Elements✓ Our Solution

ArrayHash TableDivide and ConquerSorting+4

LeetCode ↗65% acc.

MediumPow(x, n)✓ Our Solution

MathRecursion

LeetCode ↗37% acc.

HardMedian of Two Sorted Arrays✓ Our Solution

ArrayBinary SearchDivide and Conquer

LeetCode ↗44% acc.

MediumHouse Robber✓ Our Solution

ArrayDynamic Programming

LeetCode ↗52% acc.

HardLFU Cache✓ Our Solution

Hash TableLinked ListDesignDoubly-Linked List

LeetCode ↗47% acc.

MediumFlatten Nested List Iterator✓ Our Solution

StackTreeDepth-First SearchDesign+2

LeetCode ↗65% acc.

HardReverse Nodes in k-Group✓ Our Solution

Linked ListRecursion

LeetCode ↗63% acc.

EasyLongest Common Prefix✓ Our Solution

StringTrie

LeetCode ↗45% acc.

MediumDaily Temperatures✓ Our Solution

ArrayStackMonotonic Stack

LeetCode ↗67% acc.

HardMerge k Sorted Lists✓ Our Solution

Linked ListDivide and ConquerHeap (Priority Queue)Merge Sort

LeetCode ↗57% acc.

HardFirst Missing Positive✓ Our Solution

ArrayHash Table

LeetCode ↗41% acc.

MediumWord Search✓ Our Solution

ArrayStringBacktrackingDepth-First Search+1

LeetCode ↗45% acc.

EasyAdd Binary✓ Our Solution

MathStringBit ManipulationSimulation

LeetCode ↗56% acc.

MediumCopy List with Random Pointer✓ Our Solution

Hash TableLinked List

LeetCode ↗61% acc.

MediumSearch a 2D Matrix✓ Our Solution

ArrayBinary SearchMatrix

LeetCode ↗52% acc.

MediumMaximum Subarray✓ Our Solution

ArrayDivide and ConquerDynamic Programming

LeetCode ↗52% acc.

EasySquares of a Sorted Array✓ Our Solution

ArrayTwo PointersSorting

LeetCode ↗73% acc.

MediumMin Stack✓ Our Solution

StackDesign

LeetCode ↗56% acc.

HardMinimum Window Substring✓ Our Solution

Hash TableStringSliding Window

LeetCode ↗45% acc.

MediumBinary Tree Right Side View✓ Our Solution

TreeDepth-First SearchBreadth-First SearchBinary Tree

LeetCode ↗67% acc.

MediumKeys and Rooms✓ Our Solution

Depth-First SearchBreadth-First SearchGraph

LeetCode ↗75% acc.

MediumCourse Schedule II✓ Our Solution

Depth-First SearchBreadth-First SearchGraphTopological Sort

LeetCode ↗53% acc.

MediumMax Consecutive Ones III✓ Our Solution

ArrayBinary SearchSliding WindowPrefix Sum

LeetCode ↗66% acc.

MediumFlatten Deeply Nested Array✓ Our Solution

LeetCode ↗64% acc.

EasyFirst Unique Character in a String✓ Our Solution

Hash TableStringQueueCounting

LeetCode ↗64% acc.

MediumMaximum Profit From Trading Stocks

ArrayDynamic Programming

LeetCode ↗47% acc.

MediumContainer With Most Water✓ Our Solution

ArrayTwo PointersGreedy

LeetCode ↗58% acc.

MediumPartition Equal Subset Sum✓ Our Solution

ArrayDynamic Programming

LeetCode ↗48% acc.

EasyMerge Two Sorted Lists✓ Our Solution

Linked ListRecursion

LeetCode ↗67% acc.

MediumSubarray Sum Equals K✓ Our Solution

ArrayHash TablePrefix Sum

LeetCode ↗45% acc.

MediumInterleaving String✓ Our Solution

StringDynamic Programming

LeetCode ↗42% acc.

MediumBoundary of Binary Tree

TreeDepth-First SearchBinary Tree

LeetCode ↗47% acc.

MediumPath Sum II✓ Our Solution

BacktrackingTreeDepth-First SearchBinary Tree

LeetCode ↗60% acc.

MediumPopulating Next Right Pointers in Each Node✓ Our Solution

Linked ListTreeDepth-First SearchBreadth-First Search+1

LeetCode ↗65% acc.

HardWildcard Matching✓ Our Solution

StringDynamic ProgrammingGreedyRecursion

LeetCode ↗30% acc.

MediumCourse Schedule✓ Our Solution

Depth-First SearchBreadth-First SearchGraphTopological Sort

LeetCode ↗49% acc.

MediumKoko Eating Bananas✓ Our Solution

ArrayBinary Search

LeetCode ↗49% acc.

MediumBest Time to Buy and Sell Stock II✓ Our Solution

ArrayDynamic ProgrammingGreedy

LeetCode ↗70% acc.

MediumJump Game II✓ Our Solution

ArrayDynamic ProgrammingGreedy

LeetCode ↗42% acc.

EasyPalindrome Number✓ Our Solution

Math

LeetCode ↗59% acc.

EasyValid Palindrome II✓ Our Solution

Two PointersStringGreedy

LeetCode ↗43% acc.

MediumBoats to Save People✓ Our Solution

ArrayTwo PointersGreedySorting

LeetCode ↗60% acc.

MediumFruit Into Baskets✓ Our Solution

ArrayHash TableSliding Window

LeetCode ↗46% acc.

MediumMinimum Add to Make Parentheses Valid✓ Our Solution

StringStackGreedy

LeetCode ↗75% acc.

EasyReverse Words in a String III✓ Our Solution

Two PointersString

LeetCode ↗84% acc.

MediumReorganize String✓ Our Solution

Hash TableStringGreedySorting+2

LeetCode ↗56% acc.

EasyLinked List Cycle✓ Our Solution

Hash TableLinked ListTwo Pointers

LeetCode ↗53% acc.

HardMaximum Number of Non-overlapping Palindrome Substrings✓ Our Solution

Two PointersStringDynamic ProgrammingGreedy

LeetCode ↗42% acc.

HardLargest Rectangle in Histogram✓ Our Solution

ArrayStackMonotonic Stack

LeetCode ↗47% acc.

MediumReverse Words in a String✓ Our Solution

Two PointersString

LeetCode ↗52% acc.

MediumAdd Two Numbers✓ Our Solution

Linked ListMathRecursion

LeetCode ↗46% acc.

MediumSecond Highest Salary✓ Our Solution

Database

LeetCode ↗44% acc.

MediumPalindrome Partitioning✓ Our Solution

StringDynamic ProgrammingBacktracking

LeetCode ↗72% acc.

HardBinary Tree Maximum Path Sum✓ Our Solution

Dynamic ProgrammingTreeDepth-First SearchBinary Tree

LeetCode ↗41% acc.

MediumCount Primes✓ Our Solution

ArrayMathEnumerationNumber Theory

LeetCode ↗35% acc.

MediumPopulating Next Right Pointers in Each Node II✓ Our Solution

Linked ListTreeDepth-First SearchBreadth-First Search+1

LeetCode ↗56% acc.

MediumMaximal Square✓ Our Solution

ArrayDynamic ProgrammingMatrix

LeetCode ↗49% acc.

MediumProduct of Array Except Self✓ Our Solution

ArrayPrefix Sum

LeetCode ↗68% acc.

EasyValid Anagram✓ Our Solution

Hash TableStringSorting

LeetCode ↗67% acc.

MediumPerfect Squares✓ Our Solution

MathDynamic ProgrammingBreadth-First Search

LeetCode ↗56% acc.

MediumBinary Tree Longest Consecutive Sequence

TreeDepth-First SearchBinary Tree

LeetCode ↗54% acc.

MediumDecode Ways✓ Our Solution

StringDynamic Programming

LeetCode ↗37% acc.

EasyMerge Sorted Array✓ Our Solution

ArrayTwo PointersSorting

LeetCode ↗53% acc.

EasyLongest Palindrome✓ Our Solution

Hash TableStringGreedy

LeetCode ↗56% acc.

100

MediumDecode String✓ Our Solution

StringStackRecursion

LeetCode ↗61% acc.