2324 problems
| Problem | Difficulty | Frequency ↓ | Topics |
|---|---|---|---|
| 1669. Merge In Between Linked Lists | Medium | 12.8% | TopicsLinked List |
| 2787. Ways to Express an Integer as Sum of Powers | Medium | 12.8% | TopicsDynamic Programming |
| 2062. Count Vowel Substrings of a String | Easy | 12.8% | TopicsHash TableString |
| 2338. Count the Number of Ideal Arrays | Hard | 12.8% | TopicsMathDynamic ProgrammingCombinatoricsNumber TheoryPrime FactorizationFermat's Little Theorem |
| 2799. Count Complete Subarrays in an Array | Medium | 12.8% | TopicsArrayHash TableSliding Window |
| 464. Can I Win | Medium | 12.8% | TopicsMathDynamic ProgrammingBit ManipulationMemoizationGame TheoryBitmask |
| 2169. Count Operations to Obtain Zero | Easy | 12.8% | TopicsMathSimulation |
| 1349. Maximum Students Taking Exam | Hard | 12.8% | TopicsArrayDynamic ProgrammingBit ManipulationMatrixBitmaskMaximum FlowMaximum MatchingBipartite GraphEdmonds–Karp AlgorithmMPM AlgorithmPush-Relabel AlgorithmMinimum CutMatching (Graph)Flow NetworkDinic's Algorithm |
| 2014. Longest Subsequence Repeated k Times | Hard | 12.8% | TopicsHash TableTwo PointersStringBacktrackingCountingEnumeration |
| 3330. Find the Original Typed String I | Easy | 12.8% | TopicsString |
| 1394. Find Lucky Integer in an Array | Easy | 12.8% | TopicsArrayHash TableCounting |
| 989. Add to Array-Form of Integer | Easy | 12.8% | TopicsArrayMath |
| 784. Letter Case Permutation | Medium | 12.8% | TopicsStringBacktrackingBit Manipulation |
| 2106. Maximum Fruits Harvested After at Most K Steps | Hard | 12.8% | TopicsArrayBinary SearchSliding WindowPrefix Sum |
| 1473. Paint House III | Hard | 12.8% | TopicsArrayDynamic Programming |
| 1169. Invalid Transactions | Medium | 12.8% | TopicsArrayHash TableStringSorting |
| 2956. Find Common Elements Between Two Arrays | Easy | 12.8% | TopicsArrayHash Table |
| 3495. Minimum Operations to Make Array Elements Zero | Hard | 12.8% | TopicsArrayMathBit Manipulation |
| 2749. Minimum Operations to Make the Integer Zero | Medium | 12.8% | TopicsBit ManipulationBrainteaserEnumeration |
| Friend Requests II: Who Has the Most Friends | Medium | 12.8% | TopicsDatabase |
| 3289. The Two Sneaky Numbers of Digitville | Easy | 12.8% | TopicsArrayHash TableMath |
| 2273. Find Resultant Array After Removing Anagrams | Easy | 12.8% | TopicsArrayHash TableStringSorting |
| 890. Find and Replace Pattern | Medium | 12.8% | TopicsArrayHash TableString |
| 1-bit and 2-bit Characters | Easy | 12.8% | TopicsArray |
| 3471. Find the Largest Almost Missing Integer | Easy | 12.8% | TopicsArrayHash Table |
