Coding Topic
Stack OA Questions
Practice 185+ Stack coding questions from real online assessments. Filter by company, solve in the OAHelper editor, and prepare for company-wise OAs.
QuestionCompanyDifficulty
Brackets That Close in the Right OrderkpmgEasyWindows Whose Third Reading Is the PeakmeltwaterMediumReconciling the Wildcard Trade LogfinmechanicsMediumPods on a Shared RailqualcommMediumRebuilding the Offer FeeduberHardStriking Crates From a Single-Door Bay LogmeltwaterMediumRecords Accepted by a Postfix Sharing FiltersalesforceMediumArray Reduction: Parallel Adjacent Elimination Roundsmorgan stanleyMediumSystem Goodness (Water Management Tanks)googleMediumTaller Neighbour Points in a Student LinenatwestMediumChrono Explorer Timeline With Clamped JumpskickdrumMediumBall CollisionamazonMediumValid Passwordsd. e. shawMediumBalanced Portfolio Subgridsd. e. shawMediumFewest Pair Removals To Make A Stack Log BalancedinmobiHardTotal of All Subarray MaximainmobiMediumSecond Greater Element to the RighttredenceMediumDirectory Path CleanupsprinklrMediumPeak Memory Reservation Across Training WindowsinmobiMediumHighest Ranking Route SignaturesquarepointMediumFlatten the Category Treejosh technologyMediumStock Market PredictioncelonisMediumLexicographically Smallest Hub SelectionuberMediumLargest Good Binary String Through Adjacent SwapsukgHardNested Transactions Key-Value StoretescoMediumHeaviest Root-to-Leaf LeavesgoogleMediumCity Travel History With Past and Future JumpskickdrumMediumFlatten a Nested ListentntMediumInfer the Concrete Return Type of a Generic Function SignaturecmartHardWatchtower Sightlines on the RidgegoogleMediumSmallest and Largest Number After Removing K DigitspixelcomputeMediumEvaluate a Signed Integer Arithmetic ExpressionmicrosoftHardSmallest String Off the Sorting BeltzomatoMediumLexicographically Smallest Encoded StringripplingMediumLongest Balanced Subsequence in a RangeuidaiMediumMinimum Length After Deleting SubstringsvisaMediumCoprime ArrayzinniaMediumBalanced Bracket String ArrayvisaEasyMinimum Swaps to Balance a String of ParenthesesvisaMediumLongest Balanced Binary SubarrayibmMediumSmallest Number After Removing K Digitszs associatesMediumSmallest Encrypted StringmicrosoftMediumAsteroid Belt SurvivorsmicrosoftMediumCalculate Total RegionmicrosoftMediumMaximum String With Distinct Charactersbit mesra-campus test-2027MediumExpression Contains Redundant BracketssigmoidEasyMinimum Removals to Balance ParenthesesmetaMediumVisible TowersblackrockMediumTrapping Rain WatersamsungHardCancelling Lettersjane streetMedium