Company OAsDSA SheetAll ProblemsPlacement DataInterview ExperiencesPremium
OAHelper

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 PracticingGo 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.

Topic Difficulty

Easy Array OA Questions

Practice 454+ easy Array coding questions from real online assessments. Filter by company, solve in the OAHelper editor, and prepare for company-wise OAs.

All Arraymediumhard
Thrilling Teleporters DestinationsmongodbEasyReachable Tiles with TeleportersmongodbEasyQuestion 1visaEasyRectangle Storage Queriescapital oneEasyCount Skipped Integerscapital oneEasyTime Machinehudson river tradingEasySlot Machineernst & youngEasyLongest Contiguous Subarray with Unique Bit CountsamazonEasyBinary Cardinality SortmicrosoftEasySecond Most Frequent ElementibmEasyAlgorithms: K timesernst & youngEasyRemaining LeaveslegalzoomEasyHacker: Root PasswordlegalzoomEasyMax K XOR SuminfosysEasyMeeting Room AvailabilityibmEasyCumulative Sum PositiondeloitteEasyHighest Gap Between Consecutive NumbersboschEasyAllocate Limited Inventory Itemsamazon 9mayEasyAverage as Integer CheckwiseEasyGood citizenbarclaysEasyStep PatternsibmEasyDiscrete Structures: Comparison of Discrete Valuestiger analyticsEasyHackerCardsibmEasySalesforce Pair SumssalesforceEasyShopping Mall Coupon Interleavingmorgan stanleyEasyFind Maximum in Arrayoahelper-practiceEasyTwo-Sumoahelper-practiceEasyOdd Occurrences of Digit ZeroautodeskEasyLast Bus DepartureautodeskEasyBinary Array State OperationsautodeskEasyCase Management System SortingsalesforceEasyProducts at Negative TemperaturesbarclaysEasyQuestion 2jpmorgan chaseEasyQuestion 1jp morganEasyCode Question 2amazon off sde1 24marchEasyMaximum Triplet DistancegoogleEasyQuestion 1: Item Pricing with Minimum Previous DiscountvisaEasySpam Text ClassificationibmEasyRiver Currentpalo alto networksEasyMax-Min Set Bitspalo alto networksEasyFlip or FlopbnyEasyThe Library ProblembnyEasyThe Library ProblembnyEasyCustomer Purchase DataamazonEasyAvatar in a strange worldappleEasy01. Helping Alexnational payments corporation of indiaEasyCode Question 1: Maximum and Minimum MediansamazonEasyCode Question 1amazonEasyFormat the log strings of an unordered logibmEasyInter-dimensional PortalsappleEasy
mongodb OA questionsmongodb OA questionsvisa OA questionscapital one OA questionscapital one OA questionshudson river trading OA questionsernst & young OA questionsamazon OA questions