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Roku SDE 1

The 18 highest-frequency questions from all time. Finish the strongest signals first.

Updated weekly · Latest source check: 13 Oct 2026ⓘLatest successful check of the sources used by this company. A check does not necessarily mean the questions changed.

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Top questions 18

Done	Question	LeetCode
Mark Shortest Path to Get All Keys completed	Shortest Path to Get All Keys	Solve
Mark Decode String completed	Decode String	Solve
Mark LRU Cache completed	LRU Cache	Solve
Mark Top K Frequent Elements completed	Top K Frequent Elements	Solve
Mark 24 Game completed	24 Game	Solve
Mark 3Sum completed	3Sum	Solve
Mark Asteroid Collision completed	Asteroid Collision	Solve
Mark Backspace String Compare completed	Backspace String Compare	Solve
Mark Longest Valid Parentheses completed	Longest Valid Parentheses	Solve
Mark Max Area of Island completed	Max Area of Island	Solve
Mark Max Consecutive Ones III completed	Max Consecutive Ones III	Solve
Mark Max Stack completed	Max Stack	Solve
Mark Minimum Cost For Tickets completed	Minimum Cost For Tickets	Solve
Mark Multiply Strings completed	Multiply Strings	Solve
Mark Three Equal Parts completed	Three Equal Parts	Solve
Mark Valid Palindrome II completed	Valid Palindrome II	Solve
Mark Valid Parenthesis String completed	Valid Parenthesis String	Solve
Mark Vertical Order Traversal of a Binary Tree completed	Vertical Order Traversal of a Binary Tree	Solve