Oracle
282 problems
| Problem | Difficulty | Frequency ↓ | Topics |
|---|---|---|---|
| 1010. Pairs of Songs With Total Durations Divisible by 60 | Medium | 34.7% | TopicsArrayHash TableCounting |
| 1047. Remove All Adjacent Duplicates In String | Easy | 34.7% | TopicsStringStack |
| 912. Sort an Array | Medium | 34.7% | TopicsArrayDivide and ConquerSortingHeap (Priority Queue)Merge SortBucket SortRadix SortCounting Sort |
| Reverse Words in a String | Medium | 34.7% | TopicsTwo PointersString |
| Find Minimum in Rotated Sorted Array | Medium | 34.7% | TopicsArrayBinary Search |
| Basic Calculator II | Medium | 34.7% | TopicsMathStringStack |
| 1283. Find the Smallest Divisor Given a Threshold | Medium | 34.7% | TopicsArrayBinary Search |
| 1290. Convert Binary Number in a Linked List to Integer | Easy | 34.7% | TopicsLinked ListMath |
| 863. All Nodes Distance K in Binary Tree | Medium | 34.7% | TopicsHash TableTreeDepth-First SearchBreadth-First SearchBinary Tree |
| 713. Subarray Product Less Than K | Medium | 34.7% | TopicsArrayBinary SearchSliding WindowPrefix Sum |
| 2448. Minimum Cost to Make Array Equal | Hard | 34.7% | TopicsArrayBinary SearchGreedySortingPrefix Sum |
| 133. Clone Graph | Medium | 34.7% | TopicsHash TableDepth-First SearchBreadth-First SearchGraph Theory |
| 2008. Maximum Earnings From Taxi | Medium | 34.7% | TopicsArrayHash TableBinary SearchDynamic ProgrammingSorting |
| 212. Word Search II | Hard | 34.7% | TopicsArrayStringBacktrackingTrieMatrix |
| 841. Keys and Rooms | Medium | 34.7% | TopicsDepth-First SearchBreadth-First SearchGraph Theory |
| 402. Remove K Digits | Medium | 34.7% | TopicsStringStackGreedyMonotonic Stack |
| 796. Rotate String | Easy | 34.7% | TopicsStringString Matching |
| 130. Surrounded Regions | Medium | 34.7% | TopicsArrayDepth-First SearchBreadth-First SearchUnion-FindMatrix |
| 1190. Reverse Substrings Between Each Pair of Parentheses | Medium | 34.7% | TopicsStringStackBracket Sequences |
| 36. Valid Sudoku | Medium | 34.7% | TopicsArrayHash TableMatrix |
| 70. Climbing Stairs | Easy | 34.7% | TopicsMathDynamic ProgrammingMemoization |
| Frog Jump | Hard | 34.7% | TopicsArrayDynamic Programming |
| Reverse Linked List II | Medium | 34.7% | TopicsLinked List |
| 2402. Meeting Rooms III | Hard | 34.7% | TopicsArrayHash TableSortingHeap (Priority Queue)Simulation |
| 1309. Decrypt String from Alphabet to Integer Mapping | Easy | 34.7% | TopicsString |
