Instant Search Interview Questions

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Difficulty Question Title Company Name Category
EasyMax stackApplelyftUberstack
EasyFind Index of Closing Bracket for a Given Opening Bracket in an ExpressionAdobeAmazonFlipkartOracleOYO RoomsSnapdealWalmart LabsYatrastack
EasyDesign a stack that supports getMin() in O(1) time and O(1) extra spaceAdobeAmazonFactsetFlipkartGoldman SachsGreyOrangeKulizaMicrosoftPaytmPublicis SapientSAPSnapdealVMwarestack
EasySort a stack using recursionAmazonGoldman SachsIBMKulizaYahoostack
EasyDelete middle element of a stackAmazonstack
MediumSorting array using StacksAmazonGoldman SachsIBMKulizaYahoostack
MediumSort a stack using a temporary stackAmazonGoldman SachsIBMKulizaYahoostack
EasyReverse a stack without using extra space in O(n)FactsetInfosysMAQstack
EasyBubble sort using two StacksAmazonCapgeminiDelhiveryMAQstack
MediumCount subarrays where second highest lie before highestHackerRankstack
EasyFind maximum difference between nearest left and right smaller elementsFourkitesstack
MediumRemove brackets from an algebraic string containing + and – operatorsAdobeAmazonFourkitesstack
EasyImplement a stack using single queueAmazonFourkitesGoogleInfosysMAQMicrosoftstack
MediumForm Minimum Number From Given SequenceAmazonGoldman Sachsstack
MediumPattern Occurrences using Stackstack
EasyIterative Postorder Traversal Using Two StacksAdobeAmazonFactsetFourkitesPaytmstack
MediumStack Permutations (Check if an array is stack permutation of other)AmazonFourkitesstack
MediumGrowable array based stackMAQWalmart Labsstack
EasyTracking current Maximum Element in a StackFactsetFourkitesInfosysstack
MediumIterative method to find ancestors of a given binary treeAdobeAmazonFourkitesGoogleInfoEdgeMorgan StanleyPaytmSamsungstack
EasyCheck if stack elements are pairwise consecutiveDelhiveryFactsetFourkitesstack
MediumIdentify and Mark Unmatched Parenthesis in an ExpressionTCSstack
MediumMinimum Bracket ReversalsAmazonFanaticsstack
EasyReverse a Number Using StackMAQNokiao9 solutionsstack
MediumCheck if Two Expressions With Brackets are SameAmazonHikeOracleSnapdealWalmart LabsWiproYatraZohostack
EasyMin StackAmazonBloombergCapital OneDBOIDeutsche BankGoldman SachsGoogleMicrosoftOracleWalmart Labsstack
EasyImplement Stack using QueuesPayPalstack
MediumArithmetic Expression EvaluationAmazonOraclestack
MediumMaximum Product of Indexes of Next Greater on Left and RightFactsetFourkitesInfoEdgestack
EasyCheck for Balanced Parentheses in an ExpressionAmazonHikeOracleSnapdealWalmart LabsWiproYatraZohostack
MediumEvaluation of Postfix ExpressionAmazonOraclestack
EasyReverse a Stack Using RecursionFactsetFourkitesstack
EasyFind if an Expression has Duplicate Parenthesis or NotAmazonFactsetOraclestack
MediumHow to Implement Stack Using Priority Queue or Heap?AmazonFanaticsFourkitesstack
MediumIterative Tower of HanoiMAQstack
MediumHow to Efficiently Implement k Stacks in a Single Array?AmazonFourkitesstack
MediumFind Maximum Depth of Nested Parenthesis in a StringAmazonFacebookstack
MediumExpression EvaluationAmazonOraclestack
MediumHow to Create Mergable Stack?AmazonFactsetFanaticsstack
MediumThe Stock Span ProblemAmazonDelhiveryMAQstack
MediumFind Maximum Sum Possible Equal Sum of Three StacksAmazonFanaticsFourkitesstack
MediumPrint Next Greater Number of Q queriesAmazonFactsetFanaticsstack
MediumCheck if an Array is Stack SortableAccentureAccoliteAmazonstack
EasyReverse a String using StackAccoliteCapgeminiDelhiveryFanaticsFourkitesstack
EasyNumber of NGEs to the RightAccoliteFanaticsFourkitesstack
MediumBalanced Expression with ReplacementAmazonHikeOracleSnapchatSnapdealWalmart LabsWiproYatraZohostack
MediumDecode StringAmazonAppleBloombergByteDanceCiscoeBayFacebookGoogleHuluMicrosoftOraclestack
EasyRecursionAmazonInfosysMAQstack
MediumPrefix to Infix ConversionAmazonAvalaraFanaticsstack
EasyPostfix to Infix ConversionAmazonFactsetMicrosoftstack
MediumPrefix to Postfix ConversionAmazonFactsetFanaticsOraclestack
MediumPostfix to Prefix ConversionAmazonFactsetFanaticsOraclestack
EasyBackspace String CompareAmazonCodeNationFacebookGoogleMicrosoftOraclestack