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Roblox LeetCode Questions 2026

Browse LeetCode problems frequently asked by Roblox. Filter by difficulty and timeframe to focus your interview prep.

Last updated: 10 July 2026

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ProblemDifficultyFrequencyTopics
Longest Common PrefixEASY
50%
ArrayStringTrie
Valid ParenthesesEASY
62.5%
StringStack
Design Browser HistoryMEDIUM
50%
ArrayLinked ListStackDesignDoubly-Linked ListData Stream
Rotate ImageMEDIUM
75%
ArrayMathMatrix
Merge IntervalsMEDIUM
50%
ArraySorting
Task SchedulerMEDIUM
87.5%
ArrayHash TableGreedySortingHeap (Priority Queue)Counting
Magnetic Force Between Two BallsMEDIUM
75%
ArrayBinary SearchSorting
Implement Trie (Prefix Tree)MEDIUM
62.5%
Hash TableStringDesignTrie
Reorganize StringMEDIUM
100%
Hash TableStringGreedySortingHeap (Priority Queue)Counting
Subdomain Visit CountMEDIUM
75%
ArrayHash TableStringCounting
Count Number of Nice SubarraysMEDIUM
75%
ArrayHash TableMathSliding WindowPrefix Sum
Design Hit CounterMEDIUM
75%
ArrayBinary SearchDesignQueueData Stream
Group the People Given the Group Size They Belong ToMEDIUM
75%
ArrayHash TableGreedy
Convert Binary Number in a Linked List to IntegerEASY
75%
Linked ListMath
Students and ExaminationsEASY
75%
Database
Maximum Number of Occurrences of a SubstringMEDIUM
75%
Hash TableStringSliding Window
Minimum Absolute Difference Between Elements With ConstraintMEDIUM
62.5%
ArrayBinary SearchOrdered Set
Number of Trusted Contacts of a CustomerMEDIUM
75%
Database
Minimum Number of Frogs CroakingMEDIUM
37.5%
StringCounting
Text JustificationHARD
87.5%
ArrayStringSimulation

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