| Two Sum | Easy | 57.1% | 100.0% | ArrayHash Table |
| Merge k Sorted Lists | Hard | 58.8% | 100.0% | Linked ListDivide and ConquerHeap (Priority Queue)+1 |
| Change Null Values in a Table to the Previous Value | Medium | 51.2% | 87.5% | |
| Longest Palindromic Substring | Medium | 37.3% | 87.5% | Two PointersStringDynamic Programming |
| Second Highest Salary | Medium | 46.3% | 87.5% | Database |
| Palindrome Number | Easy | 60.2% | 75.0% | Math |
| Valid Parentheses | Easy | 43.7% | 75.0% | StringStack |
| Best Time to Buy and Sell Stock | Easy | 56.4% | 75.0% | ArrayDynamic Programming |
| Managers with at Least 5 Direct Reports | Medium | 48.9% | 62.5% | Database |
| Longest Common Prefix | Easy | 47.1% | 62.5% | ArrayStringTrie |
| Rising Temperature | Easy | 51.0% | 62.5% | Database |
| Container With Most Water | Medium | 59.5% | 62.5% | ArrayTwo PointersGreedy |
| Merge Intervals | Medium | 51.1% | 62.5% | ArraySorting |
| Longest Substring Without Repeating Characters | Medium | 38.5% | 62.5% | Hash TableStringSliding Window |
| Maximum Subarray | Medium | 53.0% | 62.5% | ArrayDivide and ConquerDynamic Programming |
| First Unique Character in a String | Easy | 65.0% | 62.5% | Hash TableStringQueue+1 |
| Remove Duplicates from Sorted Array | Easy | 62.2% | 62.5% | ArrayTwo Pointers |
| Add Binary | Easy | 57.6% | 62.5% | MathStringBit Manipulation+1 |
| Reverse Integer | Medium | 31.5% | 50.0% | Math |
| Climbing Stairs | Easy | 53.9% | 50.0% | MathDynamic ProgrammingMemoization |
| Majority Element | Easy | 66.1% | 50.0% | ArrayHash TableDivide and Conquer+2 |
| Edit Distance | Medium | 60.1% | 50.0% | StringDynamic Programming |
| Minimum Time to Repair Cars | Medium | 59.6% | 50.0% | ArrayBinary Search |
| Coin Change | Medium | 47.9% | 50.0% | ArrayDynamic ProgrammingBreadth-First Search |
| Max Consecutive Ones | Easy | 64.6% | 50.0% | Array |
| Kth Largest Element in an Array | Medium | 68.8% | 50.0% | ArrayDivide and ConquerSorting+2 |
| Customers Who Never Order | Easy | 71.5% | 50.0% | Database |
| Roman to Integer | Easy | 66.2% | 50.0% | Hash TableMathString |
| Nth Highest Salary | Medium | 38.8% | 50.0% | Database |
| Reverse Pairs | Hard | 33.7% | 50.0% | ArrayBinary SearchDivide and Conquer+4 |
| Group Anagrams | Medium | 72.2% | 50.0% | ArrayHash TableString+1 |
| Longest Consecutive Sequence | Medium | 47.0% | 50.0% | ArrayHash TableUnion-Find |
| Remove K-Balanced Substrings | Medium | 32.4% | 50.0% | StringStackSimulation |
| 3Sum | Medium | 38.6% | 50.0% | ArrayTwo PointersSorting |
| Split Array Largest Sum | Hard | 59.8% | 50.0% | ArrayBinary SearchDynamic Programming+2 |
| Shortest Unsorted Continuous Subarray | Medium | 38.0% | 50.0% | ArrayTwo PointersStack+3 |
| Rotate Array | Medium | 44.4% | 50.0% | ArrayMathTwo Pointers |
| Valid Anagram | Easy | 67.8% | 50.0% | Hash TableStringSorting |