Question 1

Substring with Concatenation of All Words — Roku Interview Question

Accepted Answer

"Substring with Concatenation of All Words" is a hard difficulty problem asked at Roku interviews. It covers the following topics: Hash Table, String, Sliding Window. You can practice it on LeetCode: https://leetcode.com/problems/substring-with-concatenation-of-all-words

Question 2

Sliding Window Maximum — Roku Interview Question

Accepted Answer

"Sliding Window Maximum" is a hard difficulty problem asked at Roku interviews. It covers the following topics: Array, Queue, Sliding Window, Heap (Priority Queue), Monotonic Queue. You can practice it on LeetCode: https://leetcode.com/problems/sliding-window-maximum

Question 3

LRU Cache — Roku Interview Question

Accepted Answer

"LRU Cache" is a medium difficulty problem asked at Roku interviews. It covers the following topics: Hash Table, Linked List, Design, Doubly-Linked List. You can practice it on LeetCode: https://leetcode.com/problems/lru-cache

Question 4

Simplify Path — Roku Interview Question

Accepted Answer

"Simplify Path" is a medium difficulty problem asked at Roku interviews. It covers the following topics: String, Stack. You can practice it on LeetCode: https://leetcode.com/problems/simplify-path

Question 5

Decode String — Roku Interview Question

Accepted Answer

"Decode String" is a medium difficulty problem asked at Roku interviews. It covers the following topics: String, Stack, Recursion. You can practice it on LeetCode: https://leetcode.com/problems/decode-string

Question 6

Asteroid Collision — Roku Interview Question

Accepted Answer

"Asteroid Collision" is a medium difficulty problem asked at Roku interviews. It covers the following topics: Array, Stack, Simulation. You can practice it on LeetCode: https://leetcode.com/problems/asteroid-collision

#	Question Title	Difficulty	Frequency	Topics
1	Substring with Concatenation of All Words	HARD	100.0	Hash TableStringSliding Window
2	Sliding Window Maximum	HARD	100.0	ArrayQueueSliding Window+2
3	LRU Cache	MEDIUM	100.0	Hash TableLinked ListDesign+1
4	Simplify Path	MEDIUM	87.5	StringStack
5	Decode String	MEDIUM	87.5	StringStackRecursion
6	Asteroid Collision	MEDIUM	87.5	ArrayStackSimulation
7	Backspace String Compare	EASY	87.5	Two PointersStringStack+1
8	Multiply Strings	MEDIUM	87.5	MathStringSimulation
9	Maximum Product of Three Numbers	EASY	87.5	ArrayMathSorting
10	Max Consecutive Ones III	MEDIUM	87.5	ArrayBinary SearchSliding Window+1

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