| 1550 |
Three Consecutive Odds |
Easy |
May 9, 2025 |
| 1920 |
Build Array from Permutation |
Easy |
May 12, 2025 |
| 2094 |
Finding 3-Digit Even Numbers |
Easy |
May 13, 2025 |
| 2900 |
Longest Unequal Adjacent Groups Subsequence I |
Easy |
May 15, 2025 |
| 3024 |
Type of Triangle |
Easy |
May 20, 2025 |
| 73 |
Set Matrix Zeroes |
Medium |
May 22, 2025 |
| 2942 |
Find Words Containing Character |
Easy |
May 25, 2025 |
| 2894 |
Divisible and Non-divisible Sums Difference |
Easy |
May 27, 2025 |
| 217 |
Contains Duplicate |
Easy |
June 4, 2025 |
| 242 |
Valid Anagram |
Easy |
June 4, 2025 |
| 1 |
Two Sum |
Easy |
June 6, 2025 |
| 2566 |
Maximum Difference by Remapping a Digit |
Easy |
June 17, 2025 |
| 2016 |
Maximum Difference Between Increasing Elements |
Easy |
June 19, 2025 |
| 49 |
Group Anagrams |
Medium |
July 1, 2025 |
| 2200 |
Find All K-Distant Indices in an Array |
Easy |
July 2, 2025 |
| 347 |
Top K Frequent Elements |
Medium |
July 3, 2025 |
| 271 |
Encode and Decode Strings |
Meduim |
July 4, 2025 |
| 238 |
Products of Array Except Self |
Medium |
July 6, 2025 |
| 36 |
Valid Sudoku |
Medium |
July 7, 2025 |
| 128 |
Longest Consecutive Sequence |
Medium |
July 9, 2025 |
| 125 |
Valid Palindrome |
Easy |
July 12, 2025 |
| 167 |
Two Sum II |
Medium |
July 15, 2025 |
| 15 |
Three Sum |
Medium |
September 4, 2025 |
| 11 |
Container With Most Water |
Medium |
September 6, 2025 |
| 2264 |
Largest 3-Same-Digit Number in String |
Easy |
September 7, 2025 |
| 42 |
Trapping Rain Water |
Hard |
September 18, 2025 |
| 121 |
Best Time to Buy and Sell Stock |
Easy |
October 25, 2025 |
| 3 |
Longest Substring Without Repeating Characters |
Medium |
October 25, 2025 |
| 424 |
Longest Repeating Character Replacement |
Medium |
October 27, 2025 |
| 567 |
Permutation in String |
Medium |
November 4, 2025 |
| 76 |
Minimum Window Substring |
Hard |
November 10, 2025 |
| 239 |
Sliding Window Maximum |
Hard |
November 11, 2025 |
| 20 |
Valid Parentheses |
Easy |
November 13, 2025 |
| 155 |
Min Stack |
Easy |
December 20, 2025 |
| 150 |
Evaluate Reverse Polish Notation |
Medium |
December 21, 2025 |
| 739 |
Daily Temperatures |
Medium |
December 22, 2025 |
| 853 |
Car Fleet |
Medium |
December 23, 2025 |
| 84 |
Largest Rectangle in Histogram |
Hard |
December 25, 2025 |
| 704 |
Binary Search |
Easy |
December 30, 2025 |
| 74 |
Search a 2D Matrix |
Medium |
January 3, 2026 |
| 875 |
Koko Eating Bananas |
Medium |
January 4, 2026 |
| 153 |
Find Minimum in Rotated Sorted Array |
Medium |
January 5, 2026 |
| 33 |
Search in Rotated Sorted Array |
Medium |
January 7, 2026 |
| 981 |
Time Based Key-Value Store |
Medium |
January 8, 2026 |
| 4 |
Median of Two Sorted Arrays |
Hard |
January 10, 2026 |
| 206 |
Reverse Linked List |
Easy |
January 12, 2026 |
| 21 |
Merge Two Sorted Lists |
Easy |
January 14, 2026 |
| 141 |
Linked List Cycle |
Easy |
January 15, 2026 |
| 143 |
Reorder List |
Medium |
January 16, 2026 |
| 19 |
Remove Nth Node From End of List |
Medium |
January 18, 2026 |
| 138 |
Copy List with Random Pointer |
Medium |
January 20, 2026 |
| 2 |
Add Two Numbers |
Medium |
January 21, 2026 |
| 287 |
Find the Duplicate Number |
Medium |
January 22, 2026 |
| 146 |
LRU Cache |
Medium |
January 28, 2026 |
| 23 |
Merge k Sorted Lists |
Hard |
January 29 , 2026 |
| 25 |
Reverse Nodes in k-Group |
Hard |
January 31, 2026 |
| 226 |
Invert Binary Tree |
Easy |
February 2, 2026 |
| 104 |
Maximum Depth of Binary Tree |
Easy |
February 3, 2026 |
| 543 |
Diameter of Binary Tree |
Easy |
February 4, 2026 |
| 110 |
Balanced Binary Tree |
Easy |
February 5, 2026 |
| 100 |
Same Tree |
Easy |
February 7, 2026 |
| 572 |
Subtree of Another Tree |
Easy |
February 8, 2026 |
| 235 |
Lowest Common Ancestor of a Binary Search Tree |
Easy |
February 9, 2026 |
| 102 |
Binary Tree Level Order Traversal |
Medium |
February 11, 2026 |
| 199 |
Binary Tree Right Side View |
Medium |
February 25, 2026 |
| 1448 |
Count Good Nodes in Binary Tree |
Medium |
February 26, 2026 |
| 98 |
Validate Binary Search Tree |
Medium |
February 27, 2026 |
| 230 |
Kth Smallest Element in a BST |
Medium |
March 2, 2026 |
| 105 |
Construct Binary Tree from Preorder and Inorder Traversal |
Medium |
March 7, 2026 |
| 124 |
Binary Tree Maximum Path Sum |
Hard |
March 9, 2026 |
| 297 |
Serialize and Deserialize Binary Tree |
Hard |
March 10, 2026 |
| 703 |
Kth Largest Element in a Stream |
Easy |
March 11, 2026 |
| 1046 |
Last Stone Weight |
Easy |
March 12, 2026 |
| 973 |
K Closest Points to Origin |
Medium |
March 13, 2026 |
| 215 |
Kth Largest Element in an Array |
Medium |
March 14, 2026 |
| 621 |
Task Scheduler |
Medium |
March 16, 2026 |
| 355 |
Design Twitter |
Medium |
March 17, 2026 |
| 295 |
Find Median from Data Stream |
Hard |
March 19, 2026 |
| 78 |
Subsets |
Medium |
March 20, 2026 |