Coding interview questions

Roblox Coding Interview Questions (DSA)

The 11 DSA problems Roblox has asked most in the last six months, most-asked first. 11 of them have a full breakdown with diagrams and code. Tick them off as you go.

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11problems
11full breakdowns
25topics

By difficulty: Easy (3) · Medium (6) · Hard (2)

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Topics

723.Candy Crush
Full breakdownArrayTwo PointersMatrix
Medium▶ Mock
362.Design Hit Counter
Full breakdownArrayBinary SearchDesign
Medium▶ Mock
359.Logger Rate Limiter
Full breakdownHash TableDesignData Stream
796.Rotate String
Full breakdownStringString Matching
3161.Block Placement Queries
Full breakdownArrayBinary SearchBinary Indexed Tree
3078.Match Alphanumerical Pattern in Matrix I
Full breakdownArrayHash TableString
Medium▶ Mock
1434.Number of Ways to Wear Different Hats to Each Other
Full breakdownArrayDynamic ProgrammingBit Manipulation
71.Simplify Path
Full breakdownStringStack
Medium▶ Mock
543.Diameter of Binary Tree
Full breakdownTreeDepth-First SearchBinary Tree
2502.Design Memory Allocator
Full breakdownArrayHash TableDesign
Medium+1▶ Mock

Frequently Asked Questions

What questions does Roblox ask in coding interviews?

Roblox coding interviews focus on Array, Binary Indexed Tree, Binary Search, Binary Tree, and other data structure problems. We compiled 11 questions from real Roblox interviews. The most common topics are Array, Binary Indexed Tree, Binary Search, Binary Tree, Bipartite Graph. Filter by topic to see what comes up most often.

How many Roblox coding interview questions are there?

InterviewSkool has 11 Roblox coding interview questions: 3 Easy, 6 Medium, and 2 Hard. Most Roblox interviews focus on Medium-difficulty problems, so prioritize those in your prep.

How should I prepare for Roblox coding interviews?

Start with Medium difficulty problems. Group by topic (Array, Tree, DP) to build pattern recognition. Aim to solve 30 to 40 problems before your interview. Then practice under pressure with a mock interview.

Are Roblox coding interview questions free?

Yes. All 11 Roblox coding interview questions are free to browse with no sign-up required. You can filter by difficulty and topic tags. Start a mock interview with a free credit to practice under real pressure.

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