| K-Concatenation Maximum Sum | Open ↗ |
| K-diff Pairs in an Array | Open ↗ |
| K Divisible Elements Subarrays | Open ↗ |
| Keep Multiplying Found Values by Two | Open ↗ |
| K Empty Slots | Open ↗ |
| Keyboard Row | Open ↗ |
| Keys and Rooms | Open ↗ |
| K Highest Ranked Items Within a Price Range | Open ↗ |
| Kids With the Greatest Number of Candies | Open ↗ |
| Kill Process | Open ↗ |
| K Inverse Pairs Array | Open ↗ |
| K Items With the Maximum Sum | Open ↗ |
| Knight Dialer | Open ↗ |
| Knight Probability in Chessboard | Open ↗ |
| Koko Eating Bananas | Open ↗ |
| K Radius Subarray Averages | Open ↗ |
| K-Similar Strings | Open ↗ |
| Kth Ancestor of a Tree Node | Open ↗ |
| Kth Distinct String in an Array | Open ↗ |
| Kth Largest Element in an Array | Open ↗ |
| Kth Largest Element in a Stream | Open ↗ |
| K-th Largest Perfect Subtree Size in Binary Tree | Open ↗ |
| Kth Largest Sum in a Binary Tree | Open ↗ |
| Kth Missing Positive Number | Open ↗ |
| K-th Nearest Obstacle Queries | Open ↗ |
| Kth Smallest Element in a BST | Open ↗ |
| Kth Smallest Element in a Sorted Matrix | Open ↗ |
| K-th Smallest in Lexicographical Order | Open ↗ |
| Kth Smallest Instructions | Open ↗ |
| Kth Smallest Number in Multiplication Table | Open ↗ |
| K-th Smallest Prime Fraction | Open ↗ |
| Kth Smallest Product of Two Sorted Arrays | Open ↗ |
| Kth Smallest Subarray Sum | Open ↗ |
| K-th Symbol in Grammar | Open ↗ |
| Largest 1-Bordered Square | Open ↗ |
| Largest 3-Same-Digit Number in String | Open ↗ |
| Largest BST Subtree | Open ↗ |
| Largest Color Value in a Directed Graph | Open ↗ |
| Largest Combination With Bitwise AND Greater Than Zero | Open ↗ |
| Largest Component Size by Common Factor | Open ↗ |
| Largest Divisible Subset | Open ↗ |
| Largest Element in an Array after Merge Operations | Open ↗ |
| Largest Local Values in a Matrix | Open ↗ |
| Largest Magic Square | Open ↗ |
| Largest Merge Of Two Strings | Open ↗ |
| Largest Multiple of Three | Open ↗ |
| Largest Number | Open ↗ |
| Largest Number After Digit Swaps by Parity | Open ↗ |
| Largest Number After Mutating Substring | Open ↗ |
| Largest Number At Least Twice of Others | Open ↗ |
| Largest Odd Number in String | Open ↗ |
| Largest Palindrome Product | Open ↗ |
| Largest Palindromic Number | Open ↗ |
| Largest Perimeter Triangle | Open ↗ |
| Largest Plus Sign | Open ↗ |
| Largest Positive Integer That Exists With Its Negative | Open ↗ |
| Largest Prime from Consecutive Prime Sum | Open ↗ |
| Largest Rectangle in Histogram | Open ↗ |
| Largest Subarray Length K | Open ↗ |
| Largest Submatrix With Rearrangements | Open ↗ |
| Largest Substring Between Two Equal Characters | Open ↗ |
| Largest Sum of Averages | Open ↗ |
| Largest Time for Given Digits | Open ↗ |
| Largest Triangle Area | Open ↗ |
| Largest Unique Number | Open ↗ |
| Largest Values From Labels | Open ↗ |
| Last Day Where You Can Still Cross | Open ↗ |
| Last Moment Before All Ants Fall Out of a Plank | Open ↗ |
| Last Person to Fit in the Bus | Open ↗ |
| Last Stone Weight | Open ↗ |
| Last Stone Weight II | Open ↗ |
| Last Substring in Lexicographical Order | Open ↗ |
| Latest Time by Replacing Hidden Digits | Open ↗ |
| Latest Time You Can Obtain After Replacing Characters | Open ↗ |
| Leaf-Similar Trees | Open ↗ |
| Least Number of Unique Integers after K Removals | Open ↗ |
| Least Operators to Express Number | Open ↗ |
| Leetcodify Friends Recommendations | Open ↗ |
| Leetcodify Similar Friends | Open ↗ |
| Leetflex Banned Accounts | Open ↗ |
| Left and Right Sum Differences | Open ↗ |
| Leftmost Column with at Least a One | Open ↗ |
| Lemonade Change | Open ↗ |
| Length of Last Word | Open ↗ |
| Length of Longest Fibonacci Subsequence | Open ↗ |
| Length of Longest Subarray With at Most K Frequency | Open ↗ |
| Length of Longest V-Shaped Diagonal Segment | Open ↗ |
| Length of the Longest Alphabetical Continuous Substring | Open ↗ |
| Length of the Longest Subsequence That Sums to Target | Open ↗ |
| Length of the Longest Valid Substring | Open ↗ |
| Letter Case Permutation | Open ↗ |
| Letter Combinations of a Phone Number | Open ↗ |
| Letter Tile Possibilities | Open ↗ |
| Lexicographically Maximum MEX Array | Open ↗ |
| Lexicographically Minimum String After Removing Stars | Open ↗ |
| Lexicographically Smallest Beautiful String | Open ↗ |
| Lexicographically Smallest Equivalent String | Open ↗ |
| Lexicographically Smallest Generated String | Open ↗ |
| Lexicographically Smallest Negated Permutation that Sums to Target | Open ↗ |
| Lexicographically Smallest Palindrome | Open ↗ |