Problem Pattern Frequency

Difficulty: All Pattern : All Company : All Clear Filters

Title	Solutions	Difficulty	Patterns	Companies
Contains Duplicate		Easy	Arrays	GoogleAmazonMetaMicrosoftBloombergtcsNetflixIBMVisa
Missing Number		Easy	ArraysBit Manipulation	AmazonMicrosoftGoogleBloombergMetaNvidiaGoldman SachsArista Networks
Find All Numbers Disappeared in an Array		Easy	Arrays	GoogleAmazon
Single Number		Easy	ArraysBit Manipulation	GoogleAmazonMetatcsMicrosoftBloomberg
Product of Array Except Self		Medium	Arrays	AmazonGoogleMetaMicrosoftGoldman SachsAppleYandexPayPalBloombergZohoThousandEyesAsanaUberAdobeNvidiaFractal AnalyticsZS Associates
Find the Duplicate Number		Medium	ArraysBinary SearchTwo Pointers	AmazonGoogleMicrosoftCitadelBloombergMetaGoldman SachsNvidia
Find All Duplicates in an Array		Medium	Arrays	MicrosoftGoogleBloombergAmazonMeta
Set Matrix Zeroes		Medium	Arrays	GoogleMetaAmazonMicrosoftBloombergWalmart LabseBayNutanixOracleAppleInfosysNvidiaAutodeskJ.P. Morgan
Spiral Matrix		Medium	Arrays	GoogleMicrosoftAmazonMetaBloombergCiscoAppleUberCapital Onejosh technologyZohoTikTokEpic SystemsAndurileBayOracleGoldman SachsVisatcsAkamaiYahooPayPalRobloxMorgan StanleyRBCPornHub
Rotate Image		Medium	Arrays	GoogleMicrosoftAmazonJ.P. MorganMetaBloombergAppleRobloxUberCiscoZohoAT&TFlipkartIBMInfosysRakuten
Word Search		Medium	Backtracking	AmazonBloombergGoogleUberMetaTikTokNetflixMicrosoftFaireGoldman SachsPayPalSalesforceOracleCiscoKaratEpic SystemsAtlassianIBMSnapAppleGrammarly
First Missing Positive		Hard	Arrays	AmazonGoogleMicrosoftBloombergMetaOracleTeslaGoldman SachsServiceNowMakeMyTripMyntraGeneral MotorsZomatoCognizant
Longest Consecutive Sequence		Medium	Arrays	GoogleAmazonMetaMicrosoftBloombergIBMGoldman SachsWalmart LabsOracleAppleTikTokOktaLinkedInTeslaDeloitte
Letter Case Permutation		Medium	Backtracking	Meta
Subsets		Medium	Backtracking	MetaGoogleBloombergAmazonPayPalMicrosoftOracleTikTokWix
Subsets II		Medium	Backtracking	GoogleMetaAmazonMicrosoftBloomberg
Permutations		Medium	Backtracking	GoogleAmazonMicrosoftLinkedInMetaAppleBooking.comBloombergArista NetworksZomatoUberAmerican Express
Permutations II		Medium	Backtracking	GoogleAmazonMicrosoftTikTokBloombergMetaApple
Combinations		Medium	Backtracking	GoogleMetaAmazonMicrosoft
Combination Sum		Medium	Backtracking	AmazonGoogleMicrosoftBloombergAirbnbMetaYahooWalmart LabsLinkedInByteDanceTikTokAppleConfluentNetAppHPE
Combination Sum II		Medium	Backtracking	GoogleRakutenOracleMetaAmazonBloombergLinkedInMicrosoftTikTok
Combination Sum III		Medium	Backtracking	AmazonGoogle
Generate Parentheses		Medium	Backtracking	AmazonGoogleMicrosoftMetaBloombergTikTokZohoAppleGrammarlyYandexWalmart LabsServiceNowOracleInfosysExpediatcsEPAM Systems
Target Sum		Medium	BacktrackingDFSDynamic Programming	GoogleAmazonMicrosoftMetaBloombergPinterestMyntra
Palindrome Partitioning		Medium	Backtracking	AmazonGoogleMicrosoftMetaBloomberg
Letter Combinations of a Phone Number		Medium	Backtracking	AmazonGoogleLinkedInMicrosoftMetaEpic SystemsAppleAccentureUberBloombergOracleVisaGoldman SachsServiceNowDE Shaw
Generalized Abbreviation		Medium	Backtracking
Sudoku Solver		Hard	Backtracking	GoogleAmazonConfluentBloombergMetaMicrosoft
N-Queens		Hard	Backtracking	AmazonGoogleMicrosoftBloombergOracleMetaGoldman SachsTikTokZohoIBM
Climbing Stairs		Easy	Dynamic Programming	AmazonGoogleMetaBloombergMicrosoftGrammarlyAgodaOracleZohoRakutenPayPalQualcomm
House Robber		Medium	Dynamic Programming	AmazonGoogleDatabricksMicrosoftBloombergTikTokMetaByteDanceCiscoInfosysWalmart LabsGoldman SachsGrabtcs
Best Time to Buy and Sell Stock		Easy	Greedy	MetaAmazonGoogleMicrosoftBloombergIBMAppleAgodaTeslaZooxCitadelSAPMorgan StanleyNvidiatcsPayPalInfosysGoldman SachsMillenniumBlackRockJ.P. MorganYandexVisaTikTokZohoDeloitteAkamaiComcastEPAM SystemsSigmoidAdobeUberSalesforceCapital OneAtlassianByteDanceAccentureBank of AmericaRemitlyToastMastercardAmerican ExpressOzon
Maximum Subarray		Medium	Dynamic Programming	AmazonGoogleMicrosoftMetaBloombergAppleLinkedInGoldman SachsVisaCiscoSquarepoint CapitalTekionOracleNvidiaPayPaltcsTikTokUpstartZomatoZetaIntelCoupangInfosysAccentureEPAM SystemsVimeoCriteoArista Networks
Range Sum Query - Immutable		Easy	Dynamic Programming	MetaGoogleAmazonBloomberg
House Robber II		Medium	Dynamic Programming	GoogleMetaAmazonDatabricksMicrosoftLinkedInTikTokDocusign
Coin Change		Medium	Dynamic Programming	AmazonPinterestMicrosoftGoogleMetaPayPalBloombergTikTokDatadogIntuitWalmart LabsGoldman SachsOracleServiceNowPhonePeSalesforceMastercard
Maximum Product Subarray		Medium	Dynamic Programming	GoogleLinkedInAmazonMicrosoftMetatcsSwiggyAdobeDE ShawGoldman SachsSiemens
Longest Increasing Subsequence		Medium	Dynamic Programming	GoogleAmazonMicrosoftBloombergTikTokBlockMetaPayPalOracleSquarepoint CapitalHuaweiAgodaWalmart LabsAccentureNvidia
Longest Palindromic Substring		Medium	Dynamic Programming	AmazonGoogleMicrosoftMetaCiscoBloombergtcsTikTokDeloitteYandexOracleVisaWalmart LabsIBMSAPEPAM SystemsCognizanteBayAdobeGoldman SachsZohoMorgan StanleyPhonePeHSBCZS AssociatesHashedInLinkedInAppleSalesforceSoftwirepersistent systemsCitadelathenahealthAutodesk
Word Break		Medium	Dynamic Programming	AmazonMicrosoftGoogleMetaMongoDBBloombergNetflixUberOracleWalmart LabsTikTokArista NetworksMillennium
Combination Sum IV		Medium	Dynamic Programming	GoogleAmazonMeta
Decode Ways		Medium	Dynamic Programming	AmazonMetaGoogleLyftGoldman SachsSnapMicrosoftBloombergOscar HealthAdobeWalmart LabsFlipkart
Unique Paths		Medium	Dynamic Programming	GoogleMetaAmazonMicrosoftGoldman SachsBloombergFlipkartAkamai
Jump Game		Medium	Dynamic ProgrammingGreedy	AmazonGoogleMetaBloombergMicrosoftOracleAdobeZohoCognizantPayPalDoorDashNvidiaTikTokHashedInNikeNavi
Palindromic Substrings		Medium	Dynamic Programming	MetaPure StorageAmazonGoogleMicrosoftBloombergSalesforceAndurilOracleCitadelPayPalWalmart LabsEpic SystemsNetskope
Number of Longest Increasing Subsequence		Medium	Dynamic Programming	Google
Partition Equal Subset Sum		Medium	Dynamic Programming	GoogleAmazonMicrosoftMetaBloombergtcsTikTok
Partition to K Equal Sum Subsets		Medium	Dynamic Programming	LinkedInGoogleMeta
Best Time to Buy and Sell Stock with Cooldown		Medium	Dynamic Programming	GoogleTikTokAmazon
Counting Bits		Easy	Dynamic ProgrammingBit Manipulation	GoogleMicrosoftAmazonBloombergMeta
Linked List Cycle		Easy	Fast & Slow Pointers	GoogleAmazonMicrosoftBloombergGoldman SachsMeta
Middle of the Linked List		Easy	Fast & Slow Pointers	GoogleAmazonMicrosoftMetatcsAppleBloomberg
Reverse Linked List		Easy	In-place reversal of a linked list	AmazonGoogleMicrosoftAppleBloombergMetaOracleVisaTikTokNvidiaGoldman SachsQualcommEPAM Systems
Palindrome Linked List		Easy	Fast & Slow Pointers	MetaAmazonGoogleMicrosoftBloomberg
Remove Linked List Elements		Easy	Fast & Slow Pointers	BloombergGoogleAmazonMetaMicrosoft
Remove Duplicates from Sorted List		Easy	Fast & Slow Pointers	GoogleAmazonMicrosoftBloombergOracleMeta
Linked List Cycle II		Medium	Fast & Slow Pointers	AmazonGoogleMicrosoftMetaAmerican Express
Add Two Numbers		Medium	Fast & Slow Pointers	GoogleAmazonMetaMicrosoftBloombergCiscoUberYandexOracleNvidiaByteDanceGoldman SachsZoho
Remove Nth Node From End of List		Medium	Fast & Slow Pointers	MetaGoogleAmazonMicrosoftBloombergYandextcsAccentureApplejosh technologyTinkoffOracleTikTok
Sort List		Medium	Fast & Slow Pointers	AmazonGoogleMicrosoftLyftBloombergMetaOracle
Reorder List		Medium	Fast & Slow Pointers	BloombergGoogleMetaAmazonTikTokMicrosoftAppleArista Networks
Pacific Atlantic Water Flow		Medium	BFSDFS	AmazonGoogleAdobeUrban CompanyNutanix
Number of Islands		Medium	BFSDFSUnion Find	AmazonBloombergGoogleUberLinkedInMicrosoftTikTokGoldman SachsAndurilMetaAppleSnapOracleYandexSamsungWalmart LabsTeslaExpediaServiceNowZohoCapital OneWells FargoPayPalVisaCitadelWixSiemensNvidiaIBMCiscoDocusignQualcommHiveDoorDasheBaySAPByteDanceAccentureBitGoCrowdStrikeCloudflareGrammarlyComcastBarclays
Graph Valid Tree		Medium	BFSDFSGraphUnion Find	LinkedInGoogleMeta
Number of Connected Components in an Undirected Graph		Medium	BFSDFSGraphUnion Find	General MotorsAmazonLinkedInGoogleMeta
Reverse Linked List II		Medium	In-place reversal of a linked list	GoogleMicrosoftAmazonBloombergMetaOracleByteDanceNvidiaTikTokNutanix
Rotate List		Medium	In-place reversal of a linked list	BloombergAmazonGoogleMetajosh technologyMicrosoftLinkedIn
Swap Nodes in Pairs		Medium	In-place reversal of a linked list	GoogleBloombergMicrosoftAmazonTikTokPayPalYandex
Odd Even Linked List		Medium	In-place reversal of a linked list	AmazonMetaGoogleMicrosoftBloomberg
Reverse Nodes in k-Group		Hard	In-place reversal of a linked list	AmazonMicrosoftGoogleBloombergMetaSalesforceTikTokMathWorksUberGoldman SachsCiscoAppleCadence
Merge Two Sorted Lists		Easy	Two Pointers	AmazonGoogleMicrosoftMetaBloombergAppleOracleSalesforceYandexRipplingjosh technologySquarespaceHubspotZohoSnowflakeTikTokPalo Alto Networks
Kth Smallest Element in a Sorted Matrix		Medium	Binary SearchHeap	MetaAmazonGooglePhonePeApple
Find K Pairs with Smallest Sums		Medium	Heap	AmazonGoogleLinkedInMicrosoftMeta
Merge k Sorted Lists		Hard	Heap	AmazonMetaGoogleMicrosoftOracleTikTokAppleRipplingBloombergNvidiaSnowflakeAndurilWalmart LabsSalesforcePalantir TechnologiesDeloitteUbereBayYandexDoorDash
Smallest Range Covering Elements from K Lists		Hard	Heap	AmazonLinkedIn
Meeting Rooms		Easy	Intervals	GoogleMicrosoftOracleTikTokAmazonMetaApple
Merge Intervals		Medium	Intervals	MetaGoogleBloombergAmazonMicrosoftAtlassianIBMAppleCitadelHubspotGrammarlyGoldman SachsZohoAdobeTikTokWalmart LabsIXLNetflixYandexUberOracleTeslaPalantir TechnologiesPayPalLinkedInNutanixSAPVisaTwitchByteDanceGrubhubPatreonAndurilWiproZetaCiscoIntuitSnapGoDaddyeBayNvidiaServiceNowCapital OnetcsJ.P. MorganAccentureOzonTuringCrowdStrikeInfosysMoveworksSquarespaceRipple
Interval List Intersections		Medium	Intervals	MetaGoogleYandexAmazonMicrosoftVerkada
Non-overlapping Intervals		Medium	Intervals	GoogleAmazonMetaVerkadaMicrosoftBloombergGoldman Sachs
Meeting Rooms II		Medium	HeapIntervals	GoogleAmazonBloombergMicrosoftJ.P. MorganAtlassianMetaOracleTikTokUberSnapCitadelCiscoNetflixWorldQuantAppleIBMAndurilHubspotLimeSnowflake
Task Scheduler		Medium	GreedyHeap	GoogleRobloxAmazonMicrosoftSnowflakeOracletcsAppleZetaMathWorksDocusignMetaUberRubrikLinkedInGoldman Sachs
Minimum Number of Arrows to Burst Balloons		Medium	Greedy	TikTokAmazonZohoGoogleGoldman Sachs
Insert Interval		Medium	Intervals	GoogleAmazonUberMicrosoftMetaBloombergPhonePe
Employee Free Time		Hard	HeapGreedy	CitadelGoogle
Binary Search		Easy	Binary Search	GoogleAmazonMicrosoftBloombergMetaPure Storage
Find Smallest Letter Greater Than Target		Easy	Binary Search	LinkedInGoogleBloombergMeta
Peak Index in a Mountain Array		Medium	Binary Search	MetaGoogleBloombergAmazonMicrosoft
Find Minimum in Rotated Sorted Array		Medium	Binary Search	Goldman SachsMicrosoftAmazonGoogleBloombergUberMetaWalmart LabsYandex
Find Peak Element		Medium	Binary Search	MetaAmazonBloombergMicrosoftGoogleTikTokIXLGoldman SachsAppleYahooSamsungUrban CompanyeBayOracleVisaWaymo
Search in Rotated Sorted Array		Medium	Binary Search	GoogleAmazonMicrosoftBloombergMetaTikTokGrammarlyWalmart LabsLinkedInOracleArista NetworksByteDanceYandexF5NvidiaGoldman SachsPayPaltcsCriteoAutodeskPalo Alto NetworksAppleSnapCiscoNutanixPaytmZoho
Search in Rotated Sorted Array II		Medium	Binary Search	AmazonBloombergGoogleMetatcs
Search a 2D Matrix		Medium	Binary Search	AmazonGoogleBloombergGoldman SachsTikTokMetaMicrosoftAdobeOracleAppleNutanix
Search a 2D Matrix II		Medium	Binary Search	GoogleAmazonMetaMicrosoftMotiveBloombergPayPal
Find K Closest Elements		Medium	Binary Search	AmazonMetaYandexLinkedInCoupangGoogleMicrosoftAppleDoorDashFlipkart
Count of Range Sum		Hard	Binary Search
Minimum Size Subarray Sum		Medium	Sliding Window	DoorDashMetaAmazonGoogleMicrosoftBloombergOracle
Fruit Into Baskets		Medium	Sliding Window	AmazonGoogleMetaBloombergAdobeMicrosoft
Permutation in String		Medium	Sliding Window	GoogleAmazonYandexDatabricksMicrosoftBloombergMetaCisco
Longest Repeating Character Replacement		Medium	Sliding Window	GoogleAmazonMicrosoftMetaBloombergGoldman SachsServiceNowAdobeYandexByteDanceUiPath
Sliding Window Maximum		Hard	Sliding Window	AmazonGoogleMetaMicrosoftJ.P. MorganOracleBloombergUberGoldman SachsNutanixJuspayLINECitadelIBMCoupangDE ShawServiceNowSalesforceTikTokDoorDashPalo Alto NetworksZeta
Longest Substring Without Repeating Characters		Medium	Sliding Window	AmazonGoogleMicrosoftMetaBloombergTikTokOracleYandexVisaTuringServiceNowAppleGoldman SachsWalmart LabsNetflixInfosysNvidiaSpotifyIBMHCLPalo Alto NetworksPayPalCiscoSalesforceZohoJ.P. MorganathenahealthAccoliteEPAM SystemsNetskopeFreshWorksZomatoDP worldAT&TAdobeDocusignCoupangMorgan StanleyPaytmtcspersistent systemsVirtusaDellMAQ SoftwareComcastFreechargeOzonKPMG
Minimum Number of K Consecutive Bit Flips		Hard	Sliding Window	Google
Count Unique Characters of All Substrings of a Given String		Hard	Sliding Window	Amazon
Minimum Window Substring		Hard	Sliding Window	MetaAmazonGoogleSnowflakeLyftLinkedInBloombergTikTokAdobeYandexUberSalesforceMicrosoftSnapZetaInfosysIBMMeesho
Substring with Concatenation of All Words		Hard	Sliding Window	GoogleAmazonBloombergMetaMicrosoft
Kth Smallest Element in a BST		Medium	DFS	GoogleMetaUberMicrosoftAmazonOracleBloomberg
K Closest Points to Origin		Medium	Heap	MetaAsanaAmazonGoogleLinkedInAppleMicrosoft
Top K Frequent Elements		Medium	Heap	MetaGoogleAmazonAppleOracleMicrosoftTikTokUberGoldman SachsYahooAdobeBloombergSalesforceNvidiaInfosysDisneyRokuZohoRipplingAtlassianTwilioWalmart LabsByteDanceTeslaServiceNowJ.P. MorganEPAM SystemsSnowflakeArista NetworksMicrostrategyRobinhood
Sort Characters By Frequency		Medium	Heap	BloombergMetaGoogleMicrosoftIBMAmazonEPAM Systems
Kth Largest Element in an Array		Medium	HeapQuickSelect	MetaGoogleAmazonMicrosoftAppleLinkedInSpotifyBloombergTikTokGoldman SachsMorgan StanleyOracleSalesforceUberVisaCoupang
Reorganize String		Medium	GreedyHeap	AmazonGoogleMicrosoftDE ShawRobloxZohoMetaGoldman SachsAudible
Rearrange String k Distance Apart		Hard	GreedyHeap
Course Schedule III		Hard	GreedyHeap	AmazonSalesforce
Maximum Frequency Stack		Hard	Bucket SortHeap	AmazonUberAppleMicrosoftNutanix
Course Schedule		Medium	BFSDFSGraphTopological Sort	MetaAmazonGoogleTikTokBloombergAppleRobloxAndurilSnowflakeMicrosoftOracleCoupangNordstromUberLinkedInSnapByteDanceAdobeDoorDashSwiggyIXL
Course Schedule II		Medium	BFSDFSGraphTopological Sort	AmazonRobloxUberMetaMicrosoftAppleSnapBloombergSalesforceTikTokAndurilNetflixCitadelSnowflakeGoogleOracleLinkedInWalmart LabsGoldman SachsFlipkartArista NetworksMongoDBQualcommRemitly
Minimum Height Trees		Medium	BFSGraphTopological Sort	GoogleSplunk
Alien Dictionary		Hard	GraphTopological Sort	UberMetaGoogleTikTokAmazonMicrosoftAppleCoupang
Sequence Reconstruction		Medium	GraphTopological Sort	Google
Binary Tree Level Order Traversal II		Medium	BFS	GoogleMeta
Average of Levels in Binary Tree		Easy	BFS	MetaGoogle
Minimum Depth of Binary Tree		Easy	BFSDFS	GoogleMetaAmazon
Binary Tree Level Order Traversal		Medium	BFS	AmazonMetaGoogleMicrosoftBloombergOraclePalo Alto NetworksApple
Binary Tree Zigzag Level Order Traversal		Medium	BFS	AmazonGoogleMicrosoftMetaBloombergOracleCitadelGoldman SachsSigmoidNutanixAdobeYandexTikTok
Binary Tree Right Side View		Medium	BFSDFS	MetaAmazonYandexGoogleOracleMicrosoftBloombergUberServiceNow
All Nodes Distance K in Binary Tree		Medium	BFSDFS	MetaAmazonMicrosoftOktaSalesforceTikTokGoogle
Same Tree		Easy	DFS	AmazonMetaBloombergMicrosoftGoogleApple
Path Sum		Easy	DFS	AmazonMicrosoftMetaGoogleGoldman Sachs
Maximum Depth of Binary Tree		Easy	DFS	LinkedInMicrosoftAmazonGoogleArista NetworksBloombergAvitoMeta
Diameter of Binary Tree		Easy	DFS	MetaAmazonBloombergGoogleMicrosoftOracleTikTokVerkada
Merge Two Binary Trees		Easy	DFS	LinkedInAmazonGoogleMetajosh technology
Lowest Common Ancestor of a Binary Search Tree		Medium	DFS	LinkedInAmazonGoogleMetaBloombergMicrosoft
Subtree of Another Tree		Easy	DFS	AmazonGoogleMetaMicrosoft
Invert Binary Tree		Easy	DFS	GoogleAmazonBloombergMetaMicrosoftPalo Alto Networks
Path Sum II		Medium	DFS	MetaGoogleAmazonMicrosoftTikTokOracle
Path Sum III		Medium	DFS	GoogleMicrosoftAmazonMetaMillenniumSalesforce
Lowest Common Ancestor of a Binary Tree		Medium	DFS	MetaAmazonMicrosoftLinkedInAtlassianGoogleAppleBloombergYandexOracleTikTokIntuitAdobe
Maximum Binary Tree		Medium	DFS
Maximum Width of Binary Tree		Medium	DFS	BloombergGoogleMetaAmazonMicrosoftByteDance
Construct Binary Tree from Preorder and Inorder Traversal		Medium	DFS	AmazonGoogleMicrosoftTikTokBloomberg
Validate Binary Search Tree		Medium	DFS	BloombergAmazonMetaOracleGoogleMicrosoftCitadelSalesforce
Implement Trie (Prefix Tree)		Medium	DesignTrie	GoogleMicrosoftMongoDBOracleDocusignAmazonMetaGeneral MotorsRobloxAppleSnowflakeTikTokGrammarly
Binary Tree Maximum Path Sum		Hard	DFS	DoorDashAmazonGoogleMetaBloombergYandexMicrosoftOracleTikTokNutanixSalesforceSnap
Serialize and Deserialize Binary Tree		Hard	Design	MicrosoftAmazonGoogleLinkedInTikTokMetaNutanixUberAppleCitadelOracleQuoraHivetcs
Word Search II		Hard	DFSTrie	CiscoAmazonUberTwo SigmaGoogleTikTokDoorDashMicrosoftSnapBloombergSnowflakeMetaAurora
Find Median from Data Stream		Hard	Heap	AmazonMetaMicrosoftOracleIXLAndurilGoogleGoldman SachsCitadelUberTikTokOktaCoupangAppleBloombergSpotifyFlipkartCohesityIntuitWalmart LabsSplunkVisaTinderKLA
Sliding Window Median		Hard	Heap	MetaGoogleSpotifyAmazonMicrosoft
Two Sum		Easy	Two Pointers	GoogleAmazonMicrosoftMetaBloombergAppleCognizantWalmart LabsEPAM SystemsOracleZohoJ.P. MorganComcastIntelTikTokGoldman SachsDeloitteMorgan StanleyIBMWiproHCLCapgeminiHubspotAdobeSAPYandexSpotifyNvidiaVisaInfosysAmerican ExpresstcsAccentureTiger AnalyticsSynopsysSnowflakePwcLinkedInSamsungUberPayPalWestern DigitalDoorDashFlipkartQualcommAccolitepersistent systemsTekionCriteoToastAirbus SEThoughtWorksPhonePe
Squares of a Sorted Array		Easy	Two Pointers	MetaUberAmazonGoogleYandexInstacartMicrosoft
Backspace String Compare		Easy	Two Pointers	AmazonMetaGoogleMicrosoftMicrostrategyAgoda
3Sum		Medium	Two Pointers	GoogleAmazonMetaMicrosoftBloombergTikTokVisaOracleAppleIBMCloudflareSalesforceWalmart LabsZohotcsVimeoMeesho
3Sum Closest		Medium	Two Pointers	GoogleMetaAmazonBloombergDream11Flipkart
Subarray Product Less Than K		Medium	Two Pointers	SalesforceAmazonAppleAirbnbBloombergGoogleSamsungMetaSquarepoint CapitalAgoda
Sort Colors		Medium	Two Pointers	GoogleAmazonMetaMicrosoftBloombergOracleMorgan StanleyWalmart LabsSalesforceVisaSamsungtcsSliceeBayCiscoSwiggyTargetAutodeskCapgemini
Trapping Rain Water		Hard	Two Pointers	AmazonGoogleGoldman SachsBloombergMicrosoftMetaAdobeVisaZohoAppleDE ShawTeslaMedia.netZopsmartSamsungWalmart LabsFlipkartNvidiaServiceNowTikTokPaytmEPAM SystemsSnowflakeThousandEyesUberOracleNutanixPhonePeTekionC3.aitcsHashedInGrammarlyZetaRobloxQualcomm
Container With Most Water		Medium	Two Pointers	AmazonGoogleMetaBloombergMicrosoftGoldman SachsFlipkartTikTokCapital OneServiceNowDeloitteZohoAppleOracleSAPExpediaMyntraHashedIn
Longest Word in Dictionary		Medium	Trie
Index Pairs of a String		Easy	Trie
Maximum XOR of Two Numbers in an Array		Medium	Trie	GoogleAmazon
Concatenated Words		Hard	Trie	Amazon
Prefix and Suffix Search		Hard	Trie
Palindrome Pairs		Hard	Trie	AmazonGoldman SachsAirbnb
Design Search Autocomplete System		Hard	Trie	RobloxAmazonGoogleBloombergMicrosoftPinterestCiscoMongoDB
Word Squares		Hard	Trie
Sort Items by Groups Respecting Dependencies		Hard	DFSGraphTopological Sort	AmazonBloomberg
Median of Two Sorted Arrays		Hard	Binary Search	GoogleAmazonMicrosoftGoldman SachsRipplingMetaBloombergWalmart LabsCognizanttcsAccentureAppleYandexOraclePalo Alto NetworksAutodesk
Majority Element		Easy	Sorting	GoogleAmazonBloombergMicrosoftMetatcsOracleAccentureQualcommAutodesk
Convert 1D Array Into 2D Array		Easy	Arrays
Move Zeroes		Easy	ArraysTwo Pointers	GoogleAmazonMicrosoftMetaAppleBloombergYandexOracleSAPTikTokCapgeminiEPAM SystemsUberPayPalGoldman SachsAccentureNetApp
Is Subsequence		Easy	Two Pointers	GoogleYandexMetaMicrosoftAmazonTinkoff
Binary Tree Paths		Easy	DFSBacktracking	MetaCapital OneAmazonGoogle
Factor Combinations		Medium	ArraysBacktracking	LinkedIn
Split a String Into the Max Number of Unique Substrings		Medium	Backtracking
Maximum Average Subarray I		Easy	Sliding Window	MetaGoogleAmazonMicrosoftGoldman SachsBloomberg
Gas Station		Medium	Greedy	MicrosoftGoogleAmazonInfosysMetaFlipkartBloombergOracleBitGoAccolitePhonePeZoho