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Roku LeetCode Questions 2026

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

Last updated: 20 Feb 2026

Timeframe

Difficulty

Problem	Difficulty	Frequency	Topics
Substring with Concatenation of All Words	HARD	87.5%	Hash TableStringSliding Window
Decode String	MEDIUM	87.5%	StringStackRecursion
Asteroid Collision	MEDIUM	75%	ArrayStackSimulation
LRU Cache	MEDIUM	87.5%	Hash TableLinked ListDesignDoubly-Linked List
Backspace String Compare	EASY	75%	Two PointersStringStackSimulation
Multiply Strings	MEDIUM	75%	MathStringSimulation
Maximum Product of Three Numbers	EASY	75%	ArrayMathSorting
Max Consecutive Ones III	MEDIUM	75%	ArrayBinary SearchSliding WindowPrefix Sum
Shortest Path to Get All Keys	HARD	100%	ArrayBit ManipulationBreadth-First SearchMatrix
24 Game	HARD	75%	ArrayMathBacktracking
Valid Palindrome II	EASY	75%	Two PointersStringGreedy
Top K Frequent Elements	MEDIUM	100%	ArrayHash TableDivide and ConquerSortingHeap (Priority Queue)Bucket SortCountingQuickselect
Valid Parenthesis String	MEDIUM	87.5%	StringDynamic ProgrammingStackGreedy
Candy	HARD	75%	ArrayGreedy
Max Area of Island	MEDIUM	87.5%	ArrayDepth-First SearchBreadth-First SearchUnion-FindMatrix
Search in Rotated Sorted Array	MEDIUM	75%	ArrayBinary Search
Minimum Cost For Tickets	MEDIUM	75%	ArrayDynamic Programming

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