Roku
18 problems
| Problem | Difficulty | Frequency ↓ | Topics |
|---|---|---|---|
| Decode String | Medium | 100% | TopicsStringStackRecursion |
| 864. Shortest Path to Get All Keys | Hard | 100% | TopicsArrayBit ManipulationBreadth-First SearchMatrix |
| 347. Top K Frequent Elements | Medium | 100% | TopicsArrayHash TableDivide and ConquerSortingHeap (Priority Queue)Bucket SortCountingQuickselect |
| 983. Minimum Cost For Tickets | Medium | 100% | TopicsArrayDynamic Programming |
| 146. LRU Cache | Medium | 86.9% | TopicsHash TableLinked ListDesignDoubly-Linked List |
| 844. Backspace String Compare | Easy | 86.9% | TopicsTwo PointersStringStackSimulation |
| Multiply Strings | Medium | 86.9% | TopicsMathStringSimulation |
| 24 Game | Hard | 86.9% | TopicsArrayMathBacktracking |
| 680. Valid Palindrome II | Easy | 86.9% | TopicsTwo PointersStringGreedy |
| 678. Valid Parenthesis String | Medium | 86.9% | TopicsStringDynamic ProgrammingStackGreedyBracket Sequences |
| 695. Max Area of Island | Medium | 86.9% | TopicsArrayDepth-First SearchBreadth-First SearchUnion-FindMatrix |
| 3Sum | Medium | 86.9% | TopicsArrayTwo PointersSorting |
| 987. Vertical Order Traversal of a Binary Tree | Hard | 86.9% | TopicsHash TableTreeDepth-First SearchBreadth-First SearchSortingBinary Tree |
| Asteroid Collision | Medium | 86.9% | TopicsArrayStackSimulation |
| Longest Valid Parentheses | Hard | 86.9% | TopicsStringDynamic ProgrammingStackBracket Sequences |
| 927. Three Equal Parts | Hard | 86.9% | TopicsArrayMath |
| Max Stack | Hard | 86.9% | TopicsLinked ListStackDesignDoubly-Linked ListOrdered Set |
| 1423. Maximum Points You Can Obtain from Cards | Medium | 86.9% | TopicsArraySliding WindowPrefix Sum |
