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93 problems
| Problem | Difficulty | Frequency ↓ | Topics |
|---|---|---|---|
| 6. Zigzag Conversion | Medium | 100% | TopicsString |
| 1200. Minimum Absolute Difference | Easy | 93.2% | TopicsArraySorting |
| 300. Longest Increasing Subsequence | Medium | 91.9% | TopicsArrayBinary SearchDynamic ProgrammingLongest Increasing Subsequence |
| 1160. Find Words That Can Be Formed by Characters | Easy | 83.7% | TopicsArrayHash TableStringCounting |
| 2559. Count Vowel Strings in Ranges | Medium | 81.6% | TopicsArrayStringPrefix Sum |
| 146. LRU Cache | Medium | 79.4% | TopicsHash TableLinked ListDesignDoubly-Linked List |
| 3820. Pythagorean Distance Nodes in a Tree | Medium | 79.4% | TopicsTreeBreadth-First Search |
| 2554. Maximum Number of Integers to Choose From a Range I | Medium | 76.9% | TopicsArrayHash TableBinary SearchGreedySorting |
| 1229. Meeting Scheduler | Medium | 76.9% | TopicsArrayTwo PointersSorting |
| Maximal Square | Medium | 76.9% | TopicsArrayDynamic ProgrammingMatrix |
| 1969. Minimum Non-Zero Product of the Array Elements | Medium | 74.1% | TopicsMathGreedyRecursion |
| 79. Word Search | Medium | 74.1% | TopicsArrayStringBacktrackingDepth-First SearchMatrix |
| Smallest Greater Multiple Made of Two Digits | Medium | 74.1% | TopicsMathEnumeration |
| 2056. Number of Valid Move Combinations On Chessboard | Hard | 74.1% | TopicsArrayStringBacktrackingSimulation |
| 238. Product of Array Except Self | Medium | 74.1% | TopicsArrayPrefix Sum |
| 2183. Count Array Pairs Divisible by K | Hard | 74.1% | TopicsArrayHash TableMathCountingNumber TheoryEuclidean AlgorithmGreatest Common Divisor |
| 2380. Time Needed to Rearrange a Binary String | Medium | 74.1% | TopicsStringDynamic ProgrammingSimulation |
| 2586. Count the Number of Vowel Strings in Range | Easy | 74.1% | TopicsArrayStringCounting |
| Maximum Frequency Score of a Subarray | Hard | 74.1% | TopicsArrayHash TableMathStackSliding Window |
| Maximum Number of Integers to Choose From a Range II | Medium | 74.1% | TopicsArrayBinary SearchGreedySorting |
| 1473. Paint House III | Hard | 74.1% | TopicsArrayDynamic Programming |
| 1589. Maximum Sum Obtained of Any Permutation | Medium | 74.1% | TopicsArrayGreedySortingPrefix Sum |
| 322. Coin Change | Medium | 74.1% | TopicsArrayDynamic ProgrammingBreadth-First SearchKnapsack ProblemComplete Knapsack |
| 3. Longest Substring Without Repeating Characters | Medium | 71% | TopicsHash TableStringSliding Window |
| 56. Merge Intervals | Medium | 71% | TopicsArraySortingQuicksort |
