Coding Topic
Counting OA Questions
Practice 321+ Counting coding questions from real online assessments. Filter by company, solve in the OAHelper editor, and prepare for company-wise OAs.
QuestionCompanyDifficulty
Count Closest Cross-Half PairsinfosysMediumMagical Pairs by a Single Digit SwapsusquehannaMediumSmallest Rearrangement With No Equal Neighboursmorgan stanleyMediumMinimum Rounds to Clear an Array by Pairs and TriplesvisaMediumLongest Streak of Equal Adjacent Valuesrystad energyEasyFirst Letter That Occurs Exactly Oncerystad energyEasyCount Value Pairs With a Fixed Differencemorgan stanleyMediumCharacter Frequency CounterentntEasyDatasetsoyoEasyAlphabetically Smallest Palindrome After Fewest ChangesgoogleMediumCount Index Pairs With Exactly k Multiples In RangechubbMediumLongest Repeated Character Runhudson river tradingEasyCount Equal Codes Within Distance KinfosysMediumMaximum Palindromes After Cross-String Letter SwapsmicrosoftMediumMaximum Pairs Where One Member Divides A and the Other Divides BinfosysMediumCounting Commas in Formatted Numberstexas instrumentsMediumTop Three New Connections for a UservisaMediumDesmus Check Center CostgyansysMediumCount Scaled Dominant PairsoracleMediumCounting ArraysoracleMediumSubarrays With An Exact Maximum And MinimummeeshoMediumTotal Operations to Make Every Subarray PalindromicgeeksforgeeksMediumCount Subarrays With a Given Zero to One RatiointuitMediumMaximize the XOR of Two Binary Strings by Reordering OnemicrosoftMediumPerfect Digit SubstringsvisaMediumMutual-Friend Recommendations Ranked by Shared ConnectionscitadelMediumRecover a Two-Row Binary Board From Its Sumsamerican expressMediumPermutation Divisible By EightvisaMediumMinimum Operations to Avoid Three Consecutive CharactersoracleEasyPalindromic Communication Pathsgoldman sachsHardGet Optimal StringmicrosoftMediumExactly K Distinct ContaminantsadobeMediumFind Error CodesmicrosoftMediumBakery Oven RotationinfosysMediumFrequency CalculatoradobeMediumCount Triplets with Adjacency and Product ConstraintmicrosoftMediumMinimum Moves to Custom Sort ArrayibmEasyPalindromic TripletsoracleEasyNumber of Valid PartitionslinkedinMediumDuplicate Transaction DetectiontcsEasyNumber of Unique Subsets with K Distinct FruitsmyntraMediumSmart Fridge Inventorywells fargoHardCheck if Strings Can Be Made Equal With Binary OperationsmathworksMediumValid Memory Block SizesbnyMediumSeema and Linked ListsinfoedgeEasyComplementary Pairs of Stringsion groupMediumFinding the Kth Fortunate Number in a RangeuidaiMediumMaximum Ones After Bit FlipsexpediaEasyPopularity Ranking of SongsexpediaMediumCount Pairs of Connectable ServersthoughtspotMedium