Coding Topic
Combinatorics OA Questions
Practice 78+ Combinatorics coding questions from real online assessments. Filter by company, solve in the OAHelper editor, and prepare for company-wise OAs.
QuestionCompanyDifficulty
Counting ArraysoracleMediumTotal Operations to Make Every Subarray PalindromicgeeksforgeeksMediumStable Workload Treestower researchHardDomino Tilinggoldman sachsMediumNumber of Unique Subsets with K Distinct FruitsmyntraMediumNumber of Ways to Reach Island NnetradyneMediumCount Task Complexity AssignmentsdeshawHardGroups of Size kquantitativebrokersMediumCount Sequences with VowelspaceMediumColour GridpaceMediumCount Palindromic Subsequences of Length 3jefferiesMediumDice Sum CombinationspocketfmMediumGuard the Special GardenpocketfmMediumCount Labelled Simple Graphs on n VerticesibmMediumValid CombinationsongridMediumCount Palindromic SubsequencesmicrosoftMediumGame of StairsepsilonMediumCounting Bike Assignments That Catch the Thiefimpact analyticsMediumGemstone Stand RearrangementsphonepeMediumFun ArrayscohesityMediumSubsequences With Exactly K Set BitsDirecti(titan)MediumSum of Compressed Numberswells fargoMediumPoisonous Bucket DetectionGrowwMediumState of the Art Paint CombinationsoptumHardEcho Sets of Auroratvs creditHardCounting Record-Breaking Bid SheetsbnyHardMighty AreahsbcHardSimilar Parity Integers in a Rangedream11HardNon-Repeating Placements in a RowsalesforceMediumK-th Smallest Shipment AmounttekionHardPrime-Complete Integers in a Rangegraviton researchHardSalesforce App DeploymentsalesforceHardWeighted Binomial SumsnabbitMediumMathematicians in Roomsplutus researchMediumRebuilding the Network Into a Cliqueimc tradingMediumCoprime Split of an ArraygoogleHardThe Faded LedgerpaceHardCount Strings of Length N with No Two Consecutive A'sinfosysMediumCompositions of N with No Two Equal Adjacent PartsinfosysMediumMeridian Station Stamped ManifestsadobeHardGuildmaster Ella — Counting Balanced PartiesstripeMediumIdentifying the Contaminated ContainerquinceMediumSum of Subarray Maximum Times LengthschrodingerMediumCo-prime Subtree AnalysisuberHardTech Clubtbo_3julyHardWorkflow Replacement CountepamMediumPerfect Route Cyclesde-shawEasyDrawing Edgesnowflake-28julyEasyValid BST PermutationsoracleEasyTeam Efficiency AssignmentzomatoEasy