| Maximum Points You Can Obtain from Cards | Medium | 57.2% | 100.0% | ArraySliding WindowPrefix Sum |
| Container With Most Water | Medium | 59.5% | 87.5% | ArrayTwo PointersGreedy |
| Trapping Rain Water | Hard | 66.8% | 87.5% | ArrayTwo PointersDynamic Programming+2 |
| Minimum Number of Coins to be Added | Medium | 57.9% | 87.5% | ArrayGreedySorting |
| Design Movie Rental System | Hard | 62.6% | 87.5% | ArrayHash TableDesign+2 |
| The Score of Students Solving Math Expression | Hard | 33.8% | 75.0% | ArrayHash TableMath+4 |
| Minimum Cost to Reach City With Discounts | Medium | 60.1% | 75.0% | |
| Asteroid Collision | Medium | 47.1% | 75.0% | ArrayStackSimulation |
| Koko Eating Bananas | Medium | 49.7% | 75.0% | ArrayBinary Search |
| Numbers With Same Consecutive Differences | Medium | 59.1% | 75.0% | BacktrackingBreadth-First Search |
| Triples with Bitwise AND Equal To Zero | Hard | 60.0% | 75.0% | ArrayHash TableBit Manipulation |
| Minimum Limit of Balls in a Bag | Medium | 66.6% | 75.0% | ArrayBinary Search |
| Gas Station | Medium | 47.5% | 75.0% | ArrayGreedy |
| Rotting Oranges | Medium | 58.1% | 75.0% | ArrayBreadth-First SearchMatrix |
| Transform Array to All Equal Elements | Medium | 33.0% | 75.0% | ArrayGreedy |
| Find The Least Frequent Digit | Easy | 69.7% | 75.0% | ArrayHash TableMath+1 |
| Two Sum | Easy | 57.1% | 62.5% | ArrayHash Table |
| Longest Substring Without Repeating Characters | Medium | 38.5% | 62.5% | Hash TableStringSliding Window |
| Edit Distance | Medium | 60.1% | 62.5% | StringDynamic Programming |
| Largest Rectangle in Histogram | Hard | 49.3% | 62.5% | ArrayStackMonotonic Stack |
| Dungeon Game | Hard | 40.8% | 62.5% | ArrayDynamic ProgrammingMatrix |
| Course Schedule | Medium | 50.8% | 62.5% | Depth-First SearchBreadth-First SearchGraph Theory+1 |
| Kth Largest Element in an Array | Medium | 68.8% | 62.5% | ArrayDivide and ConquerSorting+2 |
| Product of Array Except Self | Medium | 68.6% | 62.5% | ArrayPrefix Sum |
| Create Maximum Number | Hard | 34.6% | 62.5% | ArrayTwo PointersStack+2 |
| Amount of Time for Binary Tree to Be Infected | Medium | 65.1% | 62.5% | Hash TableTreeDepth-First Search+2 |
| Cherry Pickup | Hard | 39.1% | 62.5% | ArrayDynamic ProgrammingMatrix |
| Cherry Pickup II | Hard | 72.3% | 62.5% | ArrayDynamic ProgrammingMatrix |
| Candy | Hard | 47.9% | 62.5% | ArrayGreedy |
| Search in Rotated Sorted Array | Medium | 44.1% | 62.5% | ArrayBinary Search |
| Cut Off Trees for Golf Event | Hard | 36.1% | 62.5% | ArrayBreadth-First SearchHeap (Priority Queue)+1 |
| Sort Colors | Medium | 69.1% | 62.5% | ArrayTwo PointersSorting |
| Maximum Performance of a Team | Hard | 47.7% | 62.5% | ArrayGreedySorting+1 |
| Find Median from Data Stream | Hard | 54.2% | 62.5% | Two PointersDesignSorting+2 |
| Reverse Substrings Between Each Pair of Parentheses | Medium | 71.9% | 62.5% | StringStack |
| Sum of Subarray Minimums | Medium | 38.3% | 62.5% | ArrayDynamic ProgrammingStack+1 |
| Next Permutation | Medium | 44.7% | 62.5% | ArrayTwo Pointers |
| Unique Paths | Medium | 66.5% | 62.5% | MathDynamic ProgrammingCombinatorics |
| Cheapest Flights Within K Stops | Medium | 41.4% | 62.5% | Dynamic ProgrammingDepth-First SearchBreadth-First Search+3 |
| Rectangle Area II | Hard | 55.9% | 62.5% | ArraySegment TreeSweep Line+1 |
| Contain Virus | Hard | 54.3% | 62.5% | ArrayDepth-First SearchBreadth-First Search+2 |
| Median of Two Sorted Arrays | Hard | 45.9% | 50.0% | ArrayBinary SearchDivide and Conquer |
| Maximal Rectangle | Hard | 58.1% | 50.0% | ArrayDynamic ProgrammingStack+2 |
| Find Peak Element | Medium | 46.8% | 50.0% | ArrayBinary Search |
| Number of Islands | Medium | 63.8% | 50.0% | ArrayDepth-First SearchBreadth-First Search+2 |
| Subarray Sum Equals K | Medium | 46.8% | 50.0% | ArrayHash TablePrefix Sum |
| Shortest Bridge | Medium | 59.3% | 50.0% | ArrayDepth-First SearchBreadth-First Search+1 |
| Minimum Area Rectangle | Medium | 55.3% | 50.0% | ArrayHash TableMath+2 |
| Capacity To Ship Packages Within D Days | Medium | 73.5% | 50.0% | ArrayBinary Search |
| Car Pooling | Medium | 56.2% | 50.0% | ArraySortingHeap (Priority Queue)+2 |
| Next Greater Element I | Easy | 75.7% | 50.0% | ArrayHash TableStack+1 |
| Merge Intervals | Medium | 51.1% | 50.0% | ArraySorting |
| Reconstruct Itinerary | Hard | 44.3% | 50.0% | ArrayStringDepth-First Search+4 |
| Rotate Image | Medium | 79.3% | 50.0% | ArrayMathMatrix |
| Minimum Number of Days to Make m Bouquets | Medium | 56.2% | 50.0% | ArrayBinary Search |
| Evaluate Division | Medium | 64.0% | 50.0% | ArrayStringDepth-First Search+4 |
| Word Ladder | Hard | 44.9% | 50.0% | Hash TableStringBreadth-First Search |
| Generate Parentheses | Medium | 78.2% | 50.0% | StringDynamic ProgrammingBacktracking |
| Critical Connections in a Network | Hard | 59.3% | 50.0% | Depth-First SearchGraph TheoryBiconnected Component |
| Trapping Rain Water II | Hard | 64.0% | 50.0% | ArrayBreadth-First SearchHeap (Priority Queue)+1 |
| Maximal Square | Medium | 50.0% | 50.0% | ArrayDynamic ProgrammingMatrix |
| Pacific Atlantic Water Flow | Medium | 60.6% | 50.0% | ArrayDepth-First SearchBreadth-First Search+1 |
| First Missing Positive | Hard | 42.4% | 37.5% | ArrayHash Table |
| Binary Tree Maximum Path Sum | Hard | 42.0% | 37.5% | Dynamic ProgrammingTreeDepth-First Search+1 |
| Surrounded Regions | Medium | 44.7% | 37.5% | ArrayDepth-First SearchBreadth-First Search+2 |
| Copy List with Random Pointer | Medium | 62.4% | 37.5% | Hash TableLinked List |
| Lowest Common Ancestor of a Binary Tree | Medium | 68.7% | 37.5% | TreeDepth-First SearchBinary Tree |
| Partition Equal Subset Sum | Medium | 49.2% | 37.5% | ArrayDynamic Programming |
| 01 Matrix | Medium | 53.3% | 37.5% | ArrayDynamic ProgrammingBreadth-First Search+1 |
| Smallest Range Covering Elements from K Lists | Hard | 70.0% | 37.5% | ArrayHash TableGreedy+3 |
| Maximum Width of Binary Tree | Medium | 45.2% | 37.5% | TreeDepth-First SearchBreadth-First Search+1 |
| Daily Temperatures | Medium | 68.3% | 37.5% | ArrayStackMonotonic Stack |
| Last Stone Weight | Easy | 66.3% | 37.5% | ArrayHeap (Priority Queue) |
| Maximum Profit in Job Scheduling | Hard | 54.6% | 37.5% | ArrayBinary SearchDynamic Programming+1 |
| Crawler Log Folder | Easy | 71.6% | 37.5% | ArrayStringStack |
| House Robber | Medium | 52.9% | 37.5% | ArrayDynamic Programming |
| Merge Two Sorted Lists | Easy | 67.9% | 37.5% | Linked ListRecursion |
| Longest String Chain | Medium | 62.8% | 37.5% | ArrayHash TableTwo Pointers+3 |
| All Nodes Distance K in Binary Tree | Medium | 67.4% | 37.5% | Hash TableTreeDepth-First Search+2 |
| Filling Bookcase Shelves | Medium | 68.6% | 37.5% | ArrayDynamic Programming |
| Longest Repeating Character Replacement | Medium | 59.0% | 37.5% | Hash TableStringSliding Window |
| Longest Consecutive Sequence | Medium | 47.0% | 37.5% | ArrayHash TableUnion-Find |
| Path Sum II | Medium | 61.7% | 37.5% | BacktrackingTreeDepth-First Search+1 |
| Climbing Stairs | Easy | 53.9% | 37.5% | MathDynamic ProgrammingMemoization |
| Trim a Binary Search Tree | Medium | 66.6% | 37.5% | TreeDepth-First SearchBinary Search Tree+1 |
| Find Minimum in Rotated Sorted Array | Medium | 53.8% | 37.5% | ArrayBinary Search |
| Delete Node in a BST | Medium | 54.2% | 37.5% | TreeBinary Search TreeBinary Tree |
| Ways to Split Array Into Good Subarrays | Medium | 34.8% | 37.5% | ArrayMathDynamic Programming |
| 3Sum Closest | Medium | 48.0% | 37.5% | ArrayTwo PointersSorting |
| Find K Pairs with Smallest Sums | Medium | 41.5% | 37.5% | ArrayHeap (Priority Queue) |
| Course Schedule II | Medium | 55.0% | 37.5% | Depth-First SearchBreadth-First SearchGraph Theory+1 |
| Remove Outermost Parentheses | Easy | 86.8% | 37.5% | StringStack |
| Count Complete Tree Nodes | Easy | 72.0% | 37.5% | Binary SearchBit ManipulationTree+1 |
| Maximum Frequency Stack | Hard | 66.6% | 37.5% | Hash TableStackDesign+1 |
| Magnetic Force Between Two Balls | Medium | 71.9% | 37.5% | ArrayBinary SearchSorting |
| Robot Collisions | Hard | 56.1% | 37.5% | ArrayStackSorting+1 |
| Sort Characters By Frequency | Medium | 75.1% | 37.5% | Hash TableStringSorting+3 |
| Boats to Save People | Medium | 61.4% | 37.5% | ArrayTwo PointersGreedy+1 |
| Find Leaves of Binary Tree | Medium | 81.3% | 37.5% | |
| Minimum Path Sum | Medium | 67.8% | 37.5% | ArrayDynamic ProgrammingMatrix |
| Find K Closest Elements | Medium | 49.4% | 37.5% | ArrayTwo PointersBinary Search+3 |
| Single Element in a Sorted Array | Medium | 59.2% | 37.5% | ArrayBinary Search |
| Number of Atoms | Hard | 65.1% | 37.5% | Hash TableStringStack+1 |
| Palindrome Partitioning II | Hard | 36.6% | 37.5% | StringDynamic Programming |
| Furthest Building You Can Reach | Medium | 50.7% | 37.5% | ArrayGreedyHeap (Priority Queue) |
| Merge Sorted Array | Easy | 54.4% | 37.5% | ArrayTwo PointersSorting |
| Serialize and Deserialize Binary Tree | Hard | 60.3% | 37.5% | StringTreeDepth-First Search+3 |
| Min Stack | Medium | 57.7% | 37.5% | StackDesign |
| Min Cost to Connect All Points | Medium | 70.3% | 37.5% | ArrayUnion-FindGraph Theory+1 |
| Decode Ways | Medium | 37.6% | 37.5% | StringDynamic Programming |
| Find the Duplicate Number | Medium | 64.0% | 37.5% | ArrayTwo PointersBinary Search+1 |
| Valid Parentheses | Easy | 43.7% | 37.5% | StringStack |
| Longest Valid Parentheses | Hard | 38.0% | 37.5% | StringDynamic ProgrammingStack |
| Next Greater Element II | Medium | 67.9% | 37.5% | ArrayStackMonotonic Stack |
| Diameter of Binary Tree | Easy | 65.0% | 37.5% | TreeDepth-First SearchBinary Tree |
| Best Time to Buy and Sell Stock | Easy | 56.4% | 37.5% | ArrayDynamic Programming |
| 3Sum | Medium | 38.6% | 37.5% | ArrayTwo PointersSorting |