| Find the Smallest Divisor Given a Threshold | Medium | 65.5% | 100.0% | ArrayBinary Search |
| Gray Code | Medium | 64.1% | 100.0% | MathBacktrackingBit Manipulation |
| 3Sum | Medium | 38.6% | 100.0% | ArrayTwo PointersSorting |
| Exclusive Time of Functions | Medium | 66.1% | 100.0% | ArrayStack |
| Integer to Roman | Medium | 70.5% | 92.9% | Hash TableMathString |
| Minimum Operations to Make Columns Strictly Increasing | Easy | 72.6% | 92.3% | ArrayGreedyMatrix |
| Fizz Buzz | Easy | 75.3% | 89.9% | MathStringSimulation |
| Roman to Integer | Easy | 66.3% | 88.8% | Hash TableMathString |
| Best Time to Buy and Sell Stock | Easy | 56.4% | 87.7% | ArrayDynamic Programming |
| Count Ways to Group Overlapping Ranges | Medium | 39.0% | 85.3% | ArraySorting |
| Two Sum | Easy | 57.1% | 85.3% | ArrayHash Table |
| Meeting Rooms II | Medium | 52.6% | 82.6% | ArrayTwo PointersGreedy+3 |
| Rotate Image | Medium | 79.4% | 81.1% | ArrayMathMatrix |
| Minimum Absolute Difference | Easy | 75.0% | 81.1% | ArraySorting |
| Minimum Operations to Make All Array Elements Equal | Medium | 38.0% | 81.1% | ArrayBinary SearchSorting+1 |
| Number of Divisible Triplet Sums | Medium | 67.5% | 81.1% | ArrayHash Table |
| Find Pivot Index | Easy | 62.1% | 80.6% | ArrayPrefix Sum |
| Minimum Operations to Make Median of Array Equal to K | Medium | 47.7% | 75.9% | ArrayGreedySorting |
| The kth Factor of n | Medium | 70.2% | 73.9% | MathNumber Theory |
| Activity Participants | Medium | 72.0% | 73.9% | Database |
| Maximum Profitable Triplets With Increasing Prices I | Medium | 55.7% | 73.9% | ArrayBinary Indexed TreeSegment Tree |
| Find The First Player to win K Games in a Row | Medium | 40.1% | 73.9% | ArraySimulation |
| Count Vowel Strings in Ranges | Medium | 67.8% | 71.7% | ArrayStringPrefix Sum |
| Merge Intervals | Medium | 51.2% | 71.7% | ArraySorting |
| Longest Substring Without Repeating Characters | Medium | 38.5% | 71.7% | Hash TableStringSliding Window |
| Count the Number of Incremovable Subarrays II | Hard | 40.1% | 71.7% | ArrayTwo PointersBinary Search |
| String Compression | Medium | 59.6% | 71.7% | Two PointersString |
| Maximum Profitable Triplets With Increasing Prices II | Hard | 45.8% | 71.7% | ArrayBinary Indexed TreeSegment Tree |
| Sort the Students by Their Kth Score | Medium | 86.0% | 71.7% | ArraySortingMatrix |
| Find the Array Concatenation Value | Easy | 71.8% | 71.7% | ArrayTwo PointersSimulation |
| Average Value of Even Numbers That Are Divisible by Three | Easy | 62.9% | 71.7% | ArrayMath |
| Minimum Levels to Gain More Points | Medium | 40.1% | 71.7% | ArrayPrefix Sum |
| Find Products of Elements of Big Array | Hard | 24.5% | 71.7% | ArrayBinary SearchBit Manipulation |
| Type of Triangle | Easy | 44.1% | 71.7% | ArrayMathSorting |
| Find Occurrences of an Element in an Array | Medium | 73.3% | 71.7% | ArrayHash Table |
| Minimum Length of String After Operations | Medium | 75.0% | 71.7% | Hash TableStringCounting |
| Taking Maximum Energy From the Mystic Dungeon | Medium | 61.0% | 71.7% | ArrayPrefix Sum |
| Height Checker | Easy | 81.6% | 71.3% | ArraySortingCounting Sort |
| Largest Number After Digit Swaps by Parity | Easy | 65.0% | 71.3% | SortingHeap (Priority Queue) |
| Maximum Units on a Truck | Easy | 74.7% | 69.3% | ArrayGreedySorting |
| Longest Common Prefix | Easy | 47.1% | 69.3% | StringTrie |
| Valid Parentheses | Easy | 43.7% | 66.5% | StringStack |
| Get Equal Substrings Within Budget | Medium | 59.5% | 66.5% | StringBinary SearchSliding Window+1 |
| Count Binary Substrings | Easy | 70.3% | 66.5% | Two PointersString |
| Make Lexicographically Smallest Array by Swapping Elements | Medium | 60.2% | 64.7% | ArrayUnion FindSorting |
| Merge Strings Alternately | Easy | 82.1% | 64.7% | Two PointersString |
| Letter Combinations of a Phone Number | Medium | 65.5% | 63.5% | Hash TableStringBacktracking |
| Numbers With Repeated Digits | Hard | 45.8% | 63.5% | MathDynamic Programming |
| Maximum Sum of Distinct Subarrays With Length K | Medium | 42.8% | 63.5% | ArrayHash TableSliding Window |
| Minimum Suffix Flips | Medium | 73.9% | 63.5% | StringGreedy |
| Longest Consecutive Sequence | Medium | 47.0% | 59.9% | ArrayHash TableUnion Find |
| Longest Palindromic Substring | Medium | 37.4% | 59.9% | Two PointersStringDynamic Programming |
| Merge Sorted Array | Easy | 54.4% | 59.9% | ArrayTwo PointersSorting |
| Lexicographically Smallest String After Substring Operation | Medium | 34.5% | 59.9% | StringGreedy |
| Maximum Subarray | Medium | 53.0% | 55.7% | ArrayDivide and ConquerDynamic Programming |
| Shortest and Lexicographically Smallest Beautiful String | Medium | 40.9% | 55.7% | StringSliding Window |
| Spiral Matrix | Medium | 56.2% | 55.7% | ArrayMatrixSimulation |
| Number of Divisible Substrings | Medium | 74.6% | 55.7% | Hash TableStringCounting+1 |
| Count Pairs Of Similar Strings | Easy | 73.6% | 55.7% | ArrayHash TableString+2 |
| Longest Mountain in Array | Medium | 41.9% | 55.4% | ArrayTwo PointersDynamic Programming+1 |
| Kth Missing Positive Number | Easy | 63.2% | 55.4% | ArrayBinary Search |
| Divide Intervals Into Minimum Number of Groups | Medium | 63.6% | 52.7% | ArrayTwo PointersGreedy+3 |
| Group Anagrams | Medium | 72.2% | 50.6% | ArrayHash TableString+1 |
| Minimum Swaps to Group All 1's Together II | Medium | 65.6% | 50.6% | ArraySliding Window |
| Divide Players Into Teams of Equal Skill | Medium | 68.9% | 50.6% | ArrayHash TableTwo Pointers+1 |
| Validate Binary Search Tree | Medium | 35.4% | 50.6% | TreeDepth-First SearchBinary Search Tree+1 |
| Smallest Missing Non-negative Integer After Operations | Medium | 55.9% | 50.6% | ArrayHash TableMath+1 |
| Subarray Product Less Than K | Medium | 53.9% | 50.6% | ArrayBinary SearchSliding Window+1 |
| Climbing Stairs | Easy | 53.9% | 50.6% | MathDynamic ProgrammingMemoization |
| Trapping Rain Water | Hard | 66.8% | 44.1% | ArrayTwo PointersDynamic Programming+2 |
| Product of Array Except Self | Medium | 68.6% | 44.1% | ArrayPrefix Sum |
| Flipping an Image | Easy | 83.6% | 44.1% | ArrayTwo PointersBit Manipulation+2 |
| Next Permutation | Medium | 44.8% | 44.1% | ArrayTwo Pointers |
| Find the Index of the First Occurrence in a String | Easy | 46.3% | 44.1% | Two PointersStringString Matching |
| Backspace String Compare | Easy | 49.8% | 44.1% | Two PointersStringStack+1 |
| Number of Operations to Make Network Connected | Medium | 66.2% | 44.1% | Depth-First SearchBreadth-First SearchUnion Find+1 |
| Longest Increasing Subsequence | Medium | 59.1% | 44.1% | ArrayBinary SearchDynamic Programming |
| Subarray Sum Equals K | Medium | 46.8% | 44.1% | ArrayHash TablePrefix Sum |
| Intersection of Two Arrays | Easy | 77.5% | 44.1% | ArrayHash TableTwo Pointers+2 |
| Rotate Array | Medium | 44.5% | 44.1% | ArrayMathTwo Pointers |
| Flip String to Monotone Increasing | Medium | 61.9% | 44.1% | StringDynamic Programming |
| Single-Threaded CPU | Medium | 47.4% | 44.1% | ArraySortingHeap (Priority Queue) |
| Median of Two Sorted Arrays | Hard | 46.0% | 44.1% | ArrayBinary SearchDivide and Conquer |
| Find The Original Array of Prefix Xor | Medium | 88.3% | 44.1% | ArrayBit Manipulation |
| Subsets | Medium | 82.1% | 44.1% | ArrayBacktrackingBit Manipulation |
| Find Minimum in Rotated Sorted Array | Medium | 53.8% | 44.1% | ArrayBinary Search |
| Palindrome Number | Easy | 60.3% | 44.1% | Math |
| Odd String Difference | Easy | 61.8% | 44.1% | ArrayHash TableString |
| Reverse Integer | Medium | 31.5% | 37.4% | Math |
| Gas Station | Medium | 47.5% | 37.4% | ArrayGreedy |
| Remove Duplicates from Sorted Array | Easy | 62.3% | 37.4% | ArrayTwo Pointers |
| Count Number of Teams | Medium | 70.2% | 35.0% | ArrayDynamic ProgrammingBinary Indexed Tree+1 |
| Minimum Number of Flips to Make the Binary String Alternating | Medium | 41.1% | 35.0% | StringDynamic ProgrammingSliding Window |
| Find All Possible Stable Binary Arrays II | Hard | 27.6% | 35.0% | Dynamic ProgrammingPrefix Sum |
| Rearrange Array to Maximize Prefix Score | Medium | 42.5% | 35.0% | ArrayGreedySorting+1 |
| Generate Parentheses | Medium | 78.3% | 35.0% | StringDynamic ProgrammingBacktracking |
| Least Number of Unique Integers after K Removals | Medium | 63.7% | 35.0% | ArrayHash TableGreedy+2 |
| Happy Number | Easy | 59.3% | 35.0% | Hash TableMathTwo Pointers |
| Range Product Queries of Powers | Medium | 61.4% | 35.0% | ArrayBit ManipulationPrefix Sum |
| Prime In Diagonal | Easy | 37.4% | 35.0% | ArrayMathMatrix+1 |
| Word Break | Medium | 49.1% | 35.0% | ArrayHash TableString+3 |
| Degree of an Array | Easy | 58.2% | 35.0% | ArrayHash Table |
| 132 Pattern | Medium | 34.5% | 35.0% | ArrayBinary SearchStack+2 |
| Partition Equal Subset Sum | Medium | 49.2% | 35.0% | ArrayDynamic Programming |
| Minimum Operations to Reduce an Integer to 0 | Medium | 61.1% | 35.0% | Dynamic ProgrammingGreedyBit Manipulation |
| Increasing Triplet Subsequence | Medium | 39.2% | 35.0% | ArrayGreedy |
| Find Longest Calls | Medium | 63.1% | 35.0% | Database |
| Find the Duplicate Number | Medium | 64.0% | 35.0% | ArrayTwo PointersBinary Search+1 |
| The Employee That Worked on the Longest Task | Easy | 51.4% | 35.0% | Array |
| LRU Cache | Medium | 46.8% | 35.0% | Hash TableLinked ListDesign+1 |
| Majority Element | Easy | 66.1% | 35.0% | ArrayHash TableDivide and Conquer+2 |
| Task Scheduler | Medium | 62.7% | 35.0% | ArrayHash TableGreedy+3 |
| N-Queens | Hard | 75.0% | 35.0% | ArrayBacktracking |
| Removing Stars From a String | Medium | 79.0% | 35.0% | StringStackSimulation |
| Maximum Number of Tasks You Can Assign | Hard | 50.2% | 35.0% | ArrayTwo PointersBinary Search+4 |