2324 problems
| Problem | Difficulty | Frequency ↓ | Topics |
|---|---|---|---|
| 413. Arithmetic Slices | Medium | 14.8% | TopicsArrayDynamic ProgrammingSliding Window |
| Number of Unique Subjects Taught by Each Teacher | Easy | 14.8% | TopicsDatabase |
| 718. Maximum Length of Repeated Subarray | Medium | 14.8% | TopicsArrayBinary SearchDynamic ProgrammingSliding WindowRolling HashHash Function |
| Implement Rand10() Using Rand7() | Medium | 14.8% | TopicsMathRejection SamplingRandomizedProbability and Statistics |
| 888. Fair Candy Swap | Easy | 14.8% | TopicsArrayHash TableBinary SearchSorting |
| 943. Find the Shortest Superstring | Hard | 14.8% | TopicsArrayStringDynamic ProgrammingBit ManipulationBitmaskHamiltonian Path |
| 1106. Parsing A Boolean Expression | Hard | 14.8% | TopicsStringStackRecursion |
| 1122. Relative Sort Array | Easy | 14.8% | TopicsArrayHash TableSortingCounting SortQuicksortBubble Sort |
| 1854. Maximum Population Year | Easy | 14.8% | TopicsArrayCountingPrefix Sum |
| To Lower Case | Easy | 14.8% | TopicsString |
| 3228. Maximum Number of Operations to Move Ones to the End | Medium | 14.8% | TopicsStringGreedyCounting |
| Return Length of Arguments Passed | Easy | 14.8% | Topics— |
| Additive Number | Medium | 14.8% | TopicsStringBacktracking |
| 1140. Stone Game II | Medium | 14.8% | TopicsArrayMathDynamic ProgrammingMinimaxPrefix SumGame TheoryZero-Sum Game |
| 754. Reach a Number | Medium | 14.8% | TopicsMathBinary Search |
| 2487. Remove Nodes From Linked List | Medium | 14.8% | TopicsLinked ListStackRecursionMonotonic Stack |
| 2000. Reverse Prefix of Word | Easy | 14.8% | TopicsTwo PointersStringStack |
| 1356. Sort Integers by The Number of 1 Bits | Easy | 14.8% | TopicsArrayBit ManipulationSortingCounting |
| 1957. Delete Characters to Make Fancy String | Easy | 14.8% | TopicsString |
| 2413. Smallest Even Multiple | Easy | 14.8% | TopicsMathNumber Theory |
| Lowest Common Ancestor of a Binary Tree III | Medium | 14.8% | TopicsHash TableTwo PointersTreeBinary TreeBinary LiftingLowest Common Ancestor |
| 2558. Take Gifts From the Richest Pile | Easy | 14.8% | TopicsArrayHeap (Priority Queue)Simulation |
| Classes With at Least 5 Students | Easy | 14.8% | TopicsDatabase |
| 2270. Number of Ways to Split Array | Medium | 14.8% | TopicsArrayPrefix Sum |
| 1559. Detect Cycles in 2D Grid | Medium | 14.8% | TopicsArrayDepth-First SearchBreadth-First SearchUnion-FindMatrix |
