| Two Sum | Easy | 57.1% | 100.0% | ArrayHash Table |
| Movie Rating | Medium | 42.8% | 91.8% | Database |
| Maximum Path Quality of a Graph | Hard | 61.7% | 91.8% | ArrayBacktrackingGraph Theory |
| Count the Number of Infection Sequences | Hard | 37.2% | 91.8% | ArrayMathCombinatorics |
| Count Increasing Quadruplets | Hard | 34.6% | 91.8% | ArrayDynamic ProgrammingBinary Indexed Tree+2 |
| Maximum Students Taking Exam | Hard | 53.4% | 91.8% | ArrayDynamic ProgrammingBit Manipulation+2 |
| Container With Most Water | Medium | 59.6% | 86.3% | ArrayTwo PointersGreedy |
| Longest Common Prefix | Easy | 47.1% | 79.3% | ArrayStringTrie |
| Valid Parentheses | Easy | 43.7% | 79.3% | StringStack |
| Number of Islands | Medium | 63.8% | 74.8% | ArrayDepth-First SearchBreadth-First Search+2 |
| Best Time to Buy and Sell Stock | Easy | 56.4% | 74.8% | ArrayDynamic Programming |
| Merge Intervals | Medium | 51.2% | 74.8% | ArraySorting |
| Maximum Subarray | Medium | 53.0% | 69.3% | ArrayDivide and ConquerDynamic Programming |
| Longest Palindromic Substring | Medium | 37.4% | 69.3% | Two PointersStringDynamic Programming |
| Palindrome Number | Easy | 60.3% | 69.3% | Math |
| Search a 2D Matrix | Medium | 53.6% | 62.3% | ArrayBinary SearchMatrix |
| Reverse Linked List | Easy | 80.3% | 62.3% | Linked ListRecursion |
| Valid Palindrome | Easy | 52.8% | 62.3% | Two PointersString |
| Kth Largest Element in an Array | Medium | 68.8% | 62.3% | ArrayDivide and ConquerSorting+2 |
| Leftmost Column with at Least a One | Medium | 55.1% | 62.3% | ArrayBinary SearchMatrix+1 |
| Longest Substring Without Repeating Characters | Medium | 38.5% | 62.3% | Hash TableStringSliding Window |
| Linked List Cycle | Easy | 53.9% | 62.3% | Hash TableLinked ListTwo Pointers |
| Move Zeroes | Easy | 63.6% | 62.3% | ArrayTwo Pointers |
| LRU Cache | Medium | 46.8% | 62.3% | Hash TableLinked ListDesign+1 |
| Coin Change | Medium | 48.0% | 62.3% | ArrayDynamic ProgrammingBreadth-First Search |
| Group Anagrams | Medium | 72.2% | 62.3% | ArrayHash TableString+1 |
| Lowest Common Ancestor of a Binary Tree | Medium | 68.8% | 52.5% | TreeDepth-First SearchBinary Tree |
| Valid Perfect Square | Easy | 44.7% | 52.5% | MathBinary Search |
| Maximal Square | Medium | 50.0% | 52.5% | ArrayDynamic ProgrammingMatrix |
| Trapping Rain Water | Hard | 66.8% | 52.5% | ArrayTwo PointersDynamic Programming+2 |
| Binary Search Tree to Greater Sum Tree | Medium | 88.4% | 52.5% | TreeDepth-First SearchBinary Search Tree+1 |
| Candy | Hard | 48.0% | 52.5% | ArrayGreedy |
| Product of Array Except Self | Medium | 68.6% | 52.5% | ArrayPrefix Sum |
| Same Tree | Easy | 66.7% | 52.5% | TreeDepth-First SearchBreadth-First Search+1 |
| Search in Rotated Sorted Array | Medium | 44.1% | 52.5% | ArrayBinary Search |
| Count Primes | Medium | 35.8% | 52.5% | ArrayMathEnumeration+1 |
| Add Two Numbers | Medium | 48.0% | 52.5% | Linked ListMathRecursion |
| Implement Queue using Stacks | Easy | 69.4% | 52.5% | StackDesignQueue |
| Palindrome Linked List | Easy | 57.5% | 52.5% | Linked ListTwo PointersStack+1 |
| Ransom Note | Easy | 65.7% | 52.5% | Hash TableStringCounting |
| Daily Temperatures | Medium | 68.4% | 52.5% | ArrayStackMonotonic Stack |
| Minimum Window Substring | Hard | 47.0% | 52.5% | Hash TableStringSliding Window |