| Two Sum | Easy | 57.1% | 100.0% | ArrayHash Table |
| Longest Substring Without Repeating Characters | Medium | 38.5% | 98.2% | Hash TableStringSliding Window |
| Minimum Operations to Make a Uni-Value Grid | Medium | 67.5% | 94.2% | ArrayMathSorting+1 |
| Valid Parentheses | Easy | 43.7% | 86.4% | StringStack |
| Move Zeroes | Easy | 63.6% | 83.2% | ArrayTwo Pointers |
| Longest Common Prefix | Easy | 47.1% | 83.2% | ArrayStringTrie |
| Longest Palindromic Substring | Medium | 37.4% | 83.2% | Two PointersStringDynamic Programming |
| Merge Sorted Array | Easy | 54.4% | 79.5% | ArrayTwo PointersSorting |
| Valid Anagram | Easy | 67.8% | 79.5% | Hash TableStringSorting |
| Best Time to Buy and Sell Stock | Easy | 56.4% | 75.1% | ArrayDynamic Programming |
| Group Anagrams | Medium | 72.2% | 75.1% | ArrayHash TableString+1 |
| Rotate Array | Medium | 44.5% | 75.1% | ArrayMathTwo Pointers |
| Reverse String | Easy | 80.6% | 62.7% | Two PointersString |
| House Robber | Medium | 52.9% | 62.7% | ArrayDynamic Programming |
| Partition Equal Subset Sum | Medium | 49.2% | 62.7% | ArrayDynamic Programming |
| Longest Consecutive Sequence | Medium | 47.0% | 62.7% | ArrayHash TableUnion-Find |
| String Compression | Medium | 59.6% | 62.7% | Two PointersString |
| Trapping Rain Water | Hard | 66.8% | 62.7% | ArrayTwo PointersDynamic Programming+2 |
| Reverse Vowels of a String | Easy | 60.7% | 62.7% | Two PointersString |
| 3Sum | Medium | 38.6% | 62.7% | ArrayTwo PointersSorting |
| First Unique Character in a String | Easy | 65.1% | 62.7% | Hash TableStringQueue+1 |
| Merge Intervals | Medium | 51.2% | 62.7% | ArraySorting |
| Generate Parentheses | Medium | 78.3% | 62.7% | StringDynamic ProgrammingBacktracking |
| LRU Cache | Medium | 46.8% | 53.0% | Hash TableLinked ListDesign+1 |
| Add Two Numbers | Medium | 48.0% | 53.0% | Linked ListMathRecursion |
| Palindrome Number | Easy | 60.3% | 53.0% | Math |
| Maximum Difference Between Node and Ancestor | Medium | 78.1% | 53.0% | TreeDepth-First SearchBinary Tree |
| Reverse Integer | Medium | 31.5% | 53.0% | Math |
| Pow(x, n) | Medium | 38.3% | 53.0% | MathRecursion |
| Two Sum II - Input Array Is Sorted | Medium | 64.6% | 53.0% | ArrayTwo PointersBinary Search |
| Duplicate Emails | Easy | 73.4% | 53.0% | Database |
| Roman to Integer | Easy | 66.3% | 53.0% | Hash TableMathString |
| Maximum Subarray | Medium | 53.0% | 53.0% | ArrayDivide and ConquerDynamic Programming |
| Count Salary Categories | Medium | 64.0% | 53.0% | Database |
| First Missing Positive | Hard | 42.5% | 53.0% | ArrayHash Table |
| Multiply Strings | Medium | 43.6% | 53.0% | MathStringSimulation |
| Reverse Words in a String | Medium | 55.6% | 53.0% | Two PointersString |
| Unique Paths | Medium | 66.6% | 53.0% | MathDynamic ProgrammingCombinatorics |
| Edit Distance | Medium | 60.2% | 53.0% | StringDynamic Programming |
| Reverse Linked List | Easy | 80.3% | 53.0% | Linked ListRecursion |
| Counter | Easy | 82.4% | 53.0% | |
| Sort Characters By Frequency | Medium | 75.1% | 53.0% | Hash TableStringSorting+3 |
| Top K Frequent Elements | Medium | 65.9% | 53.0% | ArrayHash TableDivide and Conquer+5 |
| Kth Largest Element in an Array | Medium | 68.8% | 53.0% | ArrayDivide and ConquerSorting+2 |
| Median of Two Sorted Arrays | Hard | 46.0% | 53.0% | ArrayBinary SearchDivide and Conquer |
| Merge Two Sorted Lists | Easy | 68.0% | 53.0% | Linked ListRecursion |