Company OAs DSA Sheet All Problems Placement Data Interview Experiences Premium

Built by students, for students — practice company-specific OAs, DSA sheets, and real interview experiences to land your dream role.

© 2026 OAHelper.in·Terms·Privacy·Refunds·Trust & Safety·Contact·

Ready to crack your next OA?

Practice company-specific questions trusted by thousands of students across India.

Start Practicing Go Premium

OA Practice·DSA·Placements

Disclaimer: OAHelper is an independent educational platform. We (oahelper.in) do not own the images or questions shown. Content is uploaded by users.

Coding Topic

Array OA Questions

Practice 1802+ Array coding questions from real online assessments. Filter by company, solve in the OAHelper editor, and prepare for company-wise OAs.

easy Array medium Array hard Array

QuestionCompanyDifficulty

Browser historybarclaysMedium Average as Integer CheckwiseEasy Good citizenbarclaysEasy Question 1

amazon sde1 1may

Medium

Distribution Center ManagementautodeskMedium

Longest Contiguous HousesautodeskMedium

Minimum Generations to Equalize NeuronscitadelHard

Code Question 2amazonMedium

Maximize Perfect SlotsamazonHard

Warehouse Robotics SystemamazonMedium

AWS Scalable SystemsamazonMedium

Warehouse Robotics System StabilityamazonMedium

AWS Scalable Systems - Minimum Sum for Non-decreasing PoweramazonMedium

Maximum Subsequence Sum with Inversion ConstraintinfosysHard

Alternating Sign Subsequence with BonusinfosysMedium

Lexicographically Minimal Array Segment ProductinfosysHard

Maximize Subsequence Sum with Gap PenaltyinfosysMedium

Satellite Signal ProcessinginfosysHard

Maximize Delivery Route Efficiency RatingamazonHard

Flash Sale Revenue MaximizationamazonMedium

Maximum Total Value with Group RestrictionsinfosysMedium

Maximum Array Sum with Subarray FlipsinfosysHard

Maximize Fixed Points After One SwapinfosysMedium

Step PatternsibmEasy

Discrete Structures: Comparison of Discrete Valuestiger analyticsEasy

Salesforce Lead ScoresalesforceHard

Maximizing Salesforce OpportunitiessalesforceHard

Kid PhotographyalgouniversityMedium

Array Generator ServiceamazonMedium

Grid Motif DesignautodeskMedium

Sawtooth SequenceautodeskMedium

Question 2ibmMedium

HackerCardsibmEasy

Amazon Drone Delivery NetworkamazonMedium

Salesforce Record BalancingsalesforceHard

Salesforce Pair SumssalesforceEasy

Salesforce Data CompressionsalesforceMedium

Best University By CountryukgMedium

Find the Hidden Numberalgo universityMedium

Sweet Synergyalgo universityHard

Kid PhotographyalgouniversityHard

Subarray Sums Divisible by Kalgo universityMedium

Maximum Team Size Based on Overlapping Working HourscitadelMedium

Shopping Mall Coupon Interleavingmorgan stanleyEasy

Television Rating Point Calculationmorgan stanleyMedium

Find Maximum in Arrayoahelper-practiceEasy

Two Sumoahelper-practiceEasy

Odd Occurrences of Digit ZeroautodeskEasy

Last Bus DepartureautodeskEasy

Maximum Value of Matrix ExpressionsautodeskMedium

All topics All problems Company-wise OA questions barclays OA questions wise OA questions barclays OA questions amazon sde1 1may OA questions autodesk OA questions autodesk OA questions

Array OA Questions | OAHelper