Topic Difficulty
Medium Hash Table OA Questions
Practice 284+ medium Hash Table coding questions from real online assessments. Filter by company, solve in the OAHelper editor, and prepare for company-wise OAs.
Promo Message Reach on a Social NetworkbarclaysMediumTime-Versioned Key-Value StoreciscoMediumSam's Password ScannergocommotionMediumMost Frequent Keyword SubstringsflipkartMediumMarathon Checkpoint JunctionsflipkartMediumRecurring Keyword SequencesflipkartMediumNetwork Site Impact AnalyzerflipkartMediumNo-Repeat Artist Playlisteternal (zomato)MediumCount Divisible TripletsvisaMediumContainer Limit Changesgoldman sachsMediumContainer Limit Changesgoldman sachsMediumEmergency Bed Allocation RiskflipkartMediumEqual Frequency SubarraysadobeMediumMinimum Operations to Process PackagesamazonMediumPalindrome Substrings CountgensparkMediumSub-Palindromepublicis sapientMediumStripe Merchant Fraud Risk ScoringstripeMediumChallenge 37cauxiaMediumOnline Auction Sniper DetectorciscoMediumThe Code Cracker: Decoding Duplicates and Missing InformationepamMediumMEX NumbernxtwaveMediumDetermine Reachability Between CitiesbloombergMediumQuestion 1 - Maximum Occurrences of SubstringlinkedinMediumQuestion 2: E-commerce Return Routing EngineamazonMediumOptimal InventoryamazonMediumCount User LoginsnvidiaMediumShortest unique substringcitiMediumSmart Processor EfficiencyamazonMediumEscalator Loop DetectionoyoMediumQuestion 2microsoftMediumDuplicate MessagesmicrosoftMediumPromo Code ValidatoramazonMediumQuestion 2visaMediumFind Matching Submatrixcapital oneMediumSequential Message DecodernokiaMediumOnline Grocery Order ManagementnokiaMediumLibrary Book Circulation Trackerhudson river tradingMediumTravel Photoshudson river tradingMediumAlmost MatchingoptiverMediumShortest Substringernst and youngMediumClear the Package QueueamazonMediumNew Network ProtocolakamaiMediumString ChainsakamaiMediumCategory Browse EngineamazonMediumC++: Return RoutingamazonMediumBanking System Level 2truecallerMediumC++: Return Routing EngineamazonMediumQuestion 2: MovieDB WatchlistamazonMediumQuestion 1amazonMediumLongest Contiguous HousesautodeskMedium