Coding Topic
Hash Table OA Questions
Practice 591+ Hash Table coding questions from real online assessments. Filter by company, solve in the OAHelper editor, and prepare for company-wise OAs.
QuestionCompanyDifficulty
Longest Playlist With Few Genre SwitchescognizantMediumPlacing Shuttle Stops With A Corridor BonusmoveinsyncMediumLocker Codes That Open Other LockersflipkartMediumSmallest Calibration Offset After Two Readings Are DroppedthoughtspotMediumWarmest Station Still Reporting At Each InquiryhilabsMediumNew Contact Suggestions From Shared FriendssnapEasyMegabytes Fetched While Swiping Through Camera FilterssnapEasyPrompt Tokens Served From a Prefix CacheanthropicEasyLongest Run of Draft Tokens the Big Model AcceptsanthropicEasySplitting a Multi-Key Read Across Cache ShardsbytedanceEasyRanking Checkpoints From Pairwise PreferencesopenaiEasyFresh Accounts Spraying Posts Across CommunitiesredditMediumConversations Still Waiting for a Moderator ReplyredditEasyGrouping Communities That Share Enough MembersredditMediumRoyalty Payouts When Tracks Have Several Credited ArtistsspotifyEasyEcho Check for a Help-Desk Chat FeedcognizantEasyRequest Headers After an Edge Filter ChainnetflixEasyBest-Matching Track for an Uploaded ClipbytedanceEasyLongest Shelf Stretch With Few Product Codesquantum phinanceMediumCool-Down Filter for a Notification GatewaycognizantEasyBug Codes Ordered From Rarest To Most CommonwayfairEasyShortest Stretch To Erase From A Badge LogvisaMediumSettling a Transfer Batch With Flagged Accountscommonwealth bank of australiaMediumTally of Every Distinct Sensor Readingtiger analyticsEasyCheapest Way to Run a Queue With Priority JobscognizantMediumMatching New Uploads to Near-Identical Pin HashespinterestEasyGroup Board Actions Under Role BitmaskspinterestEasyMinimum Time To Process Paired Server Taskscommonwealth bank of australiaMediumLeast Extra Time to Load a Parcel Belt Into VanscognizantMediumTracing a Peeling Chain to Its Deposit AddresscoinbaseEasyDistinct Chatters at Each Ten-Second CheckpointbytedanceEasyBank Account Operations With Validated Transferscapital oneMediumFare and Distance Totals per City After a Cut-Off TimeuberEasyCounting Only the Adult BallotsmeltwaterEasyRouting Price Updates to Wildcard Topic SubscribersbloombergMediumReading Old Snapshots of a Branching Key-Value Storejane streetMediumHazard Pointer Reclamation Counttwo sigmaMediumMerging Two Copies of a Market Data FeedoptiverEasyLongest Unbroken Run of Server Tag NumberssquarepointEasyBatch Pairs Whose Product Is a Multiple of KaccentureMediumBadge Pairs With Matching One-Bit CountsmeltwaterEasyRuns of Ledger Entries That Balance to a TargetsynchronyMediumFewest Removals to Leave Only Twin LettersvisaMediumHow Often a Window Contains Its Own MeanmeltwaterMediumLowest Number Left Off the Tableamerican expressEasyShortest Cut That Leaves No Repeated BadgevisaMediumFewest Bulk Relabels for a Mirror-Symmetric ShelfvisaMediumLetters Whose Character Code Shares a DigitaccentureEasyReading Keys From a Soundbox Pairing SignalphonepeEasyRouting Support Cases by Skill and Free CapacitysalesforceEasy