| Merge k Sorted Lists | Hard | 58.9% | 100.0% | Linked ListDivide and ConquerHeap (Priority Queue)+1 |
| Two Sum | Easy | 57.1% | 96.1% | ArrayHash Table |
| Change Null Values in a Table to the Previous Value | Medium | 51.0% | 85.4% | Database |
| Second Highest Salary | Medium | 46.4% | 77.3% | Database |
| Valid Parentheses | Easy | 43.7% | 77.3% | StringStack |
| Longest Substring Without Repeating Characters | Medium | 38.5% | 73.8% | Hash TableStringSliding Window |
| Longest Palindromic Substring | Medium | 37.4% | 73.8% | Two PointersStringDynamic Programming |
| Best Time to Buy and Sell Stock | Easy | 56.4% | 73.8% | ArrayDynamic Programming |
| Longest Common Prefix | Easy | 47.1% | 64.6% | ArrayStringTrie |
| Container With Most Water | Medium | 59.6% | 64.6% | ArrayTwo PointersGreedy |
| Palindrome Number | Easy | 60.3% | 64.6% | Math |
| Climbing Stairs | Easy | 53.9% | 58.1% | MathDynamic ProgrammingMemoization |
| Valid Palindrome | Easy | 52.8% | 58.1% | Two PointersString |
| Add Binary | Easy | 57.7% | 58.1% | MathStringBit Manipulation+1 |
| Managers with at Least 5 Direct Reports | Medium | 48.9% | 58.1% | Database |
| Minimum Time to Repair Cars | Medium | 59.6% | 58.1% | ArrayBinary Search |
| Merge Intervals | Medium | 51.2% | 58.1% | ArraySorting |
| First Unique Character in a String | Easy | 65.1% | 58.1% | Hash TableStringQueue+1 |
| 3Sum | Medium | 38.6% | 58.1% | ArrayTwo PointersSorting |
| Maximum Subarray | Medium | 53.0% | 58.1% | ArrayDivide and ConquerDynamic Programming |
| Nth Highest Salary | Medium | 38.8% | 58.1% | Database |
| Remove Duplicates from Sorted Array | Easy | 62.3% | 58.1% | ArrayTwo Pointers |
| Group Anagrams | Medium | 72.2% | 58.1% | ArrayHash TableString+1 |
| Remove K Digits | Medium | 36.4% | 48.9% | StringStackGreedy+1 |
| Rising Temperature | Easy | 51.0% | 48.9% | Database |
| Reverse Pairs | Hard | 33.7% | 48.9% | ArrayBinary SearchDivide and Conquer+4 |
| Edit Distance | Medium | 60.2% | 48.9% | StringDynamic Programming |
| Coin Change | Medium | 48.0% | 48.9% | ArrayDynamic ProgrammingBreadth-First Search |
| Remove K-Balanced Substrings | Medium | 32.4% | 48.9% | StringStackSimulation |
| Max Consecutive Ones | Easy | 64.6% | 48.9% | Array |
| Kth Largest Element in an Array | Medium | 68.8% | 48.9% | ArrayDivide and ConquerSorting+2 |
| Roman to Integer | Easy | 66.3% | 48.9% | Hash TableMathString |
| Split Array Largest Sum | Hard | 59.9% | 48.9% | ArrayBinary SearchDynamic Programming+2 |
| Longest Consecutive Sequence | Medium | 47.0% | 48.9% | ArrayHash TableUnion-Find |
| Customers Who Never Order | Easy | 71.5% | 48.9% | Database |
| Rotate Array | Medium | 44.5% | 48.9% | ArrayMathTwo Pointers |
| Next Permutation | Medium | 44.8% | 48.9% | ArrayTwo Pointers |
| Shortest Unsorted Continuous Subarray | Medium | 38.0% | 48.9% | ArrayTwo PointersStack+3 |
| Valid Anagram | Easy | 67.8% | 48.9% | Hash TableStringSorting |
| Remove All Adjacent Duplicates In String | Easy | 72.8% | 48.9% | StringStack |
| Subarray Sum Equals K | Medium | 46.8% | 48.9% | ArrayHash TablePrefix Sum |
| Reverse Vowels of a String | Easy | 60.7% | 48.9% | Two PointersString |
| Super Ugly Number | Medium | 46.0% | 48.9% | ArrayMathDynamic Programming |