| Two Sum | Easy | 57.1% | 100.0% | ArrayHash Table |
| Container With Most Water | Medium | 59.5% | 87.5% | ArrayTwo PointersGreedy |
| Maximum Path Quality of a Graph | Hard | 61.6% | 87.5% | ArrayBacktrackingGraph Theory |
| Count the Number of Infection Sequences | Hard | 37.2% | 87.5% | ArrayMathCombinatorics |
| Maximum Students Taking Exam | Hard | 53.4% | 87.5% | ArrayDynamic ProgrammingBit Manipulation+2 |
| Movie Rating | Medium | 42.7% | 87.5% | Database |
| Count Increasing Quadruplets | Hard | 34.5% | 87.5% | ArrayDynamic ProgrammingBinary Indexed Tree+2 |
| Longest Common Prefix | Easy | 47.1% | 75.0% | ArrayStringTrie |
| Valid Parentheses | Easy | 43.7% | 75.0% | StringStack |
| Best Time to Buy and Sell Stock | Easy | 56.4% | 75.0% | ArrayDynamic Programming |
| Number of Islands | Medium | 63.8% | 75.0% | ArrayDepth-First SearchBreadth-First Search+2 |
| Maximum Subarray | Medium | 53.0% | 75.0% | ArrayDivide and ConquerDynamic Programming |
| Merge Intervals | Medium | 51.1% | 75.0% | ArraySorting |
| Longest Consecutive Sequence | Medium | 47.0% | 62.5% | ArrayHash TableUnion-Find |
| Reverse Linked List | Easy | 80.2% | 62.5% | Linked ListRecursion |
| Kth Largest Element in an Array | Medium | 68.8% | 62.5% | ArrayDivide and ConquerSorting+2 |
| Maximal Square | Medium | 50.0% | 62.5% | ArrayDynamic ProgrammingMatrix |
| Valid Palindrome | Easy | 52.8% | 62.5% | Two PointersString |
| Valid Perfect Square | Easy | 44.7% | 62.5% | MathBinary Search |
| Trapping Rain Water | Hard | 66.8% | 62.5% | ArrayTwo PointersDynamic Programming+2 |
| Longest Palindromic Substring | Medium | 37.3% | 62.5% | Two PointersStringDynamic Programming |
| LRU Cache | Medium | 46.8% | 62.5% | Hash TableLinked ListDesign+1 |
| Leftmost Column with at Least a One | Medium | 55.1% | 62.5% | |
| Group Anagrams | Medium | 72.2% | 62.5% | ArrayHash TableString+1 |
| Move Zeroes | Easy | 63.5% | 62.5% | ArrayTwo Pointers |
| Longest Substring Without Repeating Characters | Medium | 38.5% | 62.5% | Hash TableStringSliding Window |
| Palindrome Number | Easy | 60.2% | 62.5% | Math |
| Remove Duplicates from Sorted Array | Easy | 62.2% | 50.0% | ArrayTwo Pointers |
| Sort Array by Increasing Frequency | Easy | 80.7% | 50.0% | ArrayHash TableSorting |
| Fibonacci Number | Easy | 73.9% | 50.0% | MathDynamic ProgrammingRecursion+1 |
| Word Break | Medium | 49.1% | 50.0% | ArrayHash TableString+3 |
| Binary Search Tree to Greater Sum Tree | Medium | 88.4% | 50.0% | TreeDepth-First SearchBinary Search Tree+1 |
| Coin Change | Medium | 47.9% | 50.0% | ArrayDynamic ProgrammingBreadth-First Search |
| Candy | Hard | 47.9% | 50.0% | ArrayGreedy |
| Product of Array Except Self | Medium | 68.6% | 50.0% | ArrayPrefix Sum |
| Maximum Number of Weeks for Which You Can Work | Medium | 42.3% | 50.0% | ArrayGreedy |
| Same Tree | Easy | 66.6% | 50.0% | TreeDepth-First SearchBreadth-First Search+1 |
| Search in Rotated Sorted Array | Medium | 44.1% | 50.0% | ArrayBinary Search |
| Count Primes | Medium | 35.7% | 50.0% | ArrayMathEnumeration+1 |
| Add Two Numbers | Medium | 47.9% | 50.0% | Linked ListMathRecursion |
| Roman to Integer | Easy | 66.2% | 50.0% | Hash TableMathString |
| Implement Queue using Stacks | Easy | 69.3% | 50.0% | StackDesignQueue |
| Linked List Cycle | Easy | 53.9% | 50.0% | Hash TableLinked ListTwo Pointers |
| Lowest Common Ancestor of a Binary Tree | Medium | 68.7% | 50.0% | TreeDepth-First SearchBinary Tree |
| Palindrome Linked List | Easy | 57.4% | 50.0% | Linked ListTwo PointersStack+1 |