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Coding Topic

Combinatorics OA Questions

Practice 193+ Combinatorics coding questions from real online assessments. Filter by company, solve in the OAHelper editor, and prepare for company-wise OAs.

easy Combinatorics medium Combinatorics hard Combinatorics

QuestionCompanyDifficulty

Tech Clubtbo_3julyEasy Workflow Replacement CountepamMedium Perfect Route Cyclesde-shawEasy

Drawing Edge

snowflake-28july

Easy

Valid BST PermutationsoracleEasy

Team Efficiency AssignmentzomatoEasy

Counting Arrays by Maximum Search CostbnyMedium

Coloring HousesdeshawMedium

Project LaunchnagarroEasy

Serial Numbers with Digit Sum Condition S(k·n)=k·S(n)amazonHard

Kingdom of Numis - Coin Coverage SubsetsamazonHard

Hackerland Prime Index AllocationlinkedinHard

Count palindromesgoogleHard

Salesforce Customer EngagementsalesforceHard

Cache Optimization PoweramazonHard

Count Bitonic SubsequencesatlassianHard

Fixed Point SubsequencesdeshawHard

Question 1tower researchHard

String selectionnokiaHard

Mega Batch CompletiongoogleHard

Question 1linkedinHard

Good SequencesamazonHard

Count Palindromic Subsequences of Length 5microsoftMedium

Question 1 and Question 2microsoftHard

Question Compilationuser submittedHard

K-Step Bit DecryptionpurplleEasy

Encryptiontech mahindraHard

Code Question 2amazonMedium

PairsinfosysMedium

DNA SequencingakamaiHard

Process SchedulingcitadelEasy

Colorful ConstructionalgouniversityHard

Salesforce Pair SumssalesforceEasy

Code Question 2amazonMedium

Keypad DecoderbnyMedium

Power of ArraybnyHard

Waste of TimebnyMedium

Sub-rectangle Counting ProblemflipkartEasy

Substring deletionjoveoMedium

Student ArrangementciscoHard

1. Burst the balloonsepamEasy

Count Tree PathsgameskraftHard

Minimum SumadobeHard

Product Dependency TreeintuitHard

One blockswiggyEasy

K-special numbersuidaiHard

Valid NetworkschrodingerMedium

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Combinatorics OA Questions | OAHelper