Currently only write in golang. Will support python, java, etc. in the future.
| Problem No. | Title | Acceptance | Difficulty | Language |
|---|---|---|---|---|
| 0001 | Two Sum | 49.50% | Easy | Golang |
| 0002 | Add Two Numbers | 40.21% | Medium | Golang |
| 0003 | Longest Substring Without Repeating Characters | 33.82% | Medium | Golang |
| 0004 | Median of Two Sorted Arrays | 35.94% | Hard | Golang |
| 0005 | Longest Palindromic Substring | 32.39% | Medium | Golang |
| 0006 | Zigzag Conversion | 44.69% | Medium | Golang |
| 0007 | Reverse Integer | 27.38% | Medium | Golang |
| 0008 | String to Integer (atoi) | 16.60% | Medium | Golang |
| 0009 | Palindrome Number | 53.36% | Easy | Golang |
| 0011 | Container With Most Water | 54.09% | Medium | Golang |
| 0012 | Integer to Roman | 61.88% | Medium | Golang |
| 0013 | Roman to Integer | 58.34% | Easy | Golang |
| 0014 | Longest Common Prefix | 40.80% | Easy | Golang |
| 0015 | 3Sum | 32.48% | Medium | Golang |
| 0016 | 3Sum Closest | 45.85% | Medium | Golang |
| 0017 | Letter Combinations of a Phone Number | 56.29% | Medium | Golang |
| 0018 | 4Sum | 36.05% | Medium | Golang |
| 0019 | Remove Nth Node From End of List | 40.74% | Medium | Golang |
| 0020 | Valid Parentheses | 40.34% | Easy | Golang |
| 0021 | Merge Two Sorted Lists | 62.36% | Easy | Golang |
| 0022 | Generate Parentheses | 72.35% | Medium | Golang |
| 0023 | Merge k Sorted Lists | 48.93% | Hard | Golang |
| 0024 | Swap Nodes in Pairs | 61.08% | Medium | Golang |
| 0025 | Reverse Nodes in k-Group | 54.36% | Hard | Golang |
| 0026 | Remove Duplicates from Sorted Array | 51.35% | Easy | Golang |
| 0027 | Remove Element | 52.76% | Easy | Golang |
| 0028 | Find the Index of the First Occurrence in a String | 38.05% | Medium | Golang |
| 0031 | Next Permutation | 37.42% | Medium | Golang |
| 0033 | Search in Rotated Sorted Array | 38.90% | Medium | Golang |
| 0034 | Find First and Last Position of Element in Sorted Array | 41.78% | Medium | Golang |
| 0035 | Search Insert Position | 43.16% | Easy | Golang |
| 0036 | Valid Sudoku | 57.96% | Medium | Golang |
| 0038 | Count and Say | 51.87% | Medium | Golang |
| 0039 | Combination Sum | 68.40% | Medium | Golang |
| 0040 | Combination Sum II | 53.39% | Medium | Golang |
| 0041 | First Missing Positive | 36.65% | Hard | Golang |
| 0043 | Multiply Strings | 39.07% | Medium | Golang |
| 0045 | Jump Game II | 39.74% | Medium | Golang |
| 0046 | Permutations | 75.46% | Medium | Golang |
| 0047 | Permutations II | 57.21% | Medium | Golang |
| 0048 | Rotate Image | 70.73% | Medium | Golang |
| 0049 | Group Anagrams | 66.67% | Medium | Golang |
| 0053 | Maximum Subarray | 50.16% | Medium | Golang |
| 0054 | Spiral Matrix | 44.63% | Medium | Golang |
| 0055 | Jump Game | 38.90% | Medium | Golang |
| 0056 | Merge Intervals | 46.12% | Medium | Golang |
| 0058 | Length of Last Word | 42.33% | Easy | Golang |
| 0062 | Unique Paths | 62.58% | Medium | Golang |
| 0064 | Minimum Path Sum | 61.01% | Medium | Golang |
| 0066 | Plus One | 43.62% | Easy | Golang |
| 0067 | Add Binary | 52.35% | Easy | Golang |
| 0070 | Climbing Stairs | 52.16% | Easy | Golang |
| 0071 | Simplify Path | 39.29% | Medium | Golang |
| 0072 | Edit Distance | 53.14% | Hard | Golang |
| 0073 | Set Matrix Zeroes | 50.90% | Medium | Golang |
| 0074 | Search a 2D Matrix | 47.50% | Medium | Golang |
| 0075 | Sort Colors | 58.20% | Medium | Golang |
| 0077 | Combinations | 66.75% | Medium | Golang |
| 0078 | Subsets | 74.65% | Medium | Golang |
| 0079 | Word Search | 40.18% | Medium | Golang |
| 0080 | Remove Duplicates from Sorted Array II | 52.10% | Medium | Golang |
| 0082 | Remove Duplicates from Sorted List II | 45.78% | Medium | Golang |
| 0085 | Maximal Rectangle | 44.59% | Hard | Golang |
| 0088 | Merge Sorted Array | 46.36% | Easy | Golang |
| 0089 | Gray Code | 56.97% | Medium | Golang |
| 0091 | Decode Ways | 32.61% | Medium | Golang |
| 0093 | Restore IP Addresses | 47.18% | Medium | Golang |
| 0094 | Binary Tree Inorder Traversal | 73.60% | Easy | Golang |
| 0096 | Unique Binary Search Trees | 59.55% | Medium | Golang |
| 0097 | Interleaving String | 37.27% | Medium | Golang |
| 0098 | Validate Binary Search Tree | 31.92% | Medium | Golang |
| 0099 | Recover Binary Search Tree | 50.80% | Medium | Golang |
| 0100 | Same Tree | 57.93% | Easy | Golang |
| 0101 | Symmetric Tree | 53.44% | Easy | Golang |
| 0102 | Binary Tree Level Order Traversal | 64.05% | Medium | Golang |
| 0103 | Binary Tree Zigzag Level Order Traversal | 56.73% | Medium | Golang |
| 0104 | Maximum Depth of Binary Tree | 73.79% | Easy | Golang |
| 0105 | Construct Binary Tree from Preorder and Inorder Traversal | 61.32% | Medium | Golang |
| 0106 | Construct Binary Tree from Inorder and Postorder Traversal | 58.00% | Medium | Golang |
| 0107 | Binary Tree Level Order Traversal II | 60.92% | Medium | Golang |
| 0108 | Convert Sorted Array to Binary Search Tree | 69.61% | Easy | Golang |
| 0109 | Convert Sorted List to Binary Search Tree | 57.81% | Medium | Golang |
| 0110 | Balanced Binary Tree | 48.78% | Easy | Golang |
| 0111 | Minimum Depth of Binary Tree | 44.20% | Easy | Golang |
| 0112 | Path Sum | 48.07% | Easy | Golang |
| 0113 | Path Sum II | 56.97% | Medium | Golang |
| 0114 | Flatten Binary Tree to Linked List | 61.64% | Medium | Golang |
| 0116 | Populating Next Right Pointers in Each Node | 60.16% | Medium | Golang |
| 0117 | Populating Next Right Pointers in Each Node II | 50.12% | Medium | Golang |
| 0118 | Pascal's Triangle | 70.37% | Easy | Golang |
| 0119 | Pascal's Triangle II | 60.47% | Easy | Golang |
| 0120 | Triangle | 54.34% | Medium | Golang |
| 0121 | Best Time to Buy and Sell Stock | 54.19% | Easy | Golang |
| 0122 | Best Time to Buy and Sell Stock II | 63.74% | Medium | Golang |
| 0124 | Binary Tree Maximum Path Sum | 39.17% | Hard | Golang |
| 0125 | Valid Palindrome | 44.19% | Easy | Golang |
| 0128 | Longest Consecutive Sequence | 48.64% | Medium | Golang |
| 0130 | Surrounded Regions | 36.54% | Medium | Golang |
| 0136 | Single Number | 70.50% | Easy | Golang |
| 0139 | Word Break | 45.54% | Medium | Golang |
| 0141 | Linked List Cycle | 47.30% | Easy | Golang |
| 0142 | Linked List Cycle II | 47.34% | Medium | Golang |
| 0146 | LRU Cache | 40.59% | Medium | Golang |
| 0147 | Insertion Sort List | 50.78% | Medium | Golang |
| 0148 | Sort List | 54.86% | Medium | Golang |
| 0150 | Evaluate Reverse Polish Notation | 45.48% | Medium | Golang |
| 0151 | Reverse Words in a String | 32.47% | Medium | Golang |
| 0152 | Maximum Product Subarray | 34.89% | Medium | Golang |
| 0155 | Min Stack | 52.20% | Medium | Golang |
| 0159 | Longest Substring with At Most Two Distinct Characters | 53.74% | Medium | Golang |
| 0160 | Intersection of Two Linked Lists | 54.05% | Easy | Golang |
| 0161 | One Edit Distance | 34.12% | Medium | Golang |
| 0162 | Find Peak Element | 46.07% | Medium | Golang |
| 0168 | Excel Sheet Column Title | 35.29% | Easy | Golang |
| 0169 | Majority Element | 63.93% | Easy | Golang |
| 0171 | Excel Sheet Column Number | 61.87% | Easy | Golang |
| 0173 | Binary Search Tree Iterator | 69.56% | Medium | Golang |
| 0187 | Repeated DNA Sequences | 46.78% | Medium | Golang |
| 0189 | Rotate Array | 39.34% | Medium | Golang |
| 0190 | Reverse Bits | 53.57% | Easy | Golang |
| 0191 | Number of 1 Bits | 66.16% | Easy | Golang |
| 0198 | House Robber | 49.33% | Medium | Golang |
| 0199 | Binary Tree Right Side View | 61.51% | Medium | Golang |
| 0200 | Number of Islands | 56.83% | Medium | Golang |
| 0202 | Happy Number | 54.72% | Easy | Golang |
| 0206 | Reverse Linked List | 73.27% | Easy | Golang |
| 0207 | Course Schedule | 45.36% | Medium | Golang |
| 0208 | Implement Trie (Prefix Tree) | 61.54% | Medium | Golang |
| 0210 | Course Schedule II | 48.36% | Medium | Golang |
| 0212 | Word Search II | 36.54% | Hard | Golang |
| 0213 | House Robber II | 40.94% | Medium | Golang |
| 0215 | Kth Largest Element in an Array | 66.05% | Medium | Golang |
| 0217 | Contains Duplicate | 61.43% | Easy | Golang |
| 0218 | The Skyline Problem | 41.77% | Hard | Golang |
| 0219 | Contains Duplicate II | 42.48% | Easy | Golang |
| 0221 | Maximal Square | 44.85% | Medium | Golang |
| 0226 | Invert Binary Tree | 74.50% | Easy | Golang |
| 0230 | Kth Smallest Element in a BST | 69.93% | Medium | Golang |
| 0234 | Palindrome Linked List | 50.04% | Easy | Golang |
| 0236 | Lowest Common Ancestor of a Binary Tree | 58.60% | Medium | Golang |
| 0238 | Product of Array Except Self | 65.00% | Medium | Golang |
| 0239 | Sliding Window Maximum | 46.39% | Hard | Golang |
| 0240 | Search a 2D Matrix II | 50.91% | Medium | Golang |
| 0279 | Perfect Squares | 52.63% | Medium | Golang |
| 0283 | Move Zeroes | 61.40% | Easy | Golang |
| 0287 | Find the Duplicate Number | 59.10% | Medium | Golang |
| 0295 | Find Median from Data Stream | 51.46% | Hard | Golang |
| 0297 | Serialize and Deserialize Binary Tree | 55.29% | Hard | Golang |
| 0300 | Longest Increasing Subsequence | 51.96% | Medium | Golang |
| 0309 | Best Time to Buy and Sell Stock with Cooldown | 56.12% | Medium | Golang |
| 0322 | Coin Change | 41.91% | Medium | Golang |
| 0326 | Power of Three | 45.42% | Easy | Golang |
| 0328 | Odd Even Linked List | 61.22% | Medium | Golang |
| 0333 | Largest BST Subtree | 42.72% | Medium | Golang |
| 0334 | Increasing Triplet Subsequence | 42.72% | Medium | Golang |
| 0337 | House Robber III | 53.94% | Medium | Golang |
| 0338 | Counting Bits | 75.64% | Easy | Golang |
| 0345 | Reverse Vowels of a String | 49.98% | Easy | Golang |
| 0347 | Top K Frequent Elements | 64.37% | Medium | Golang |
| 0371 | Sum of Two Integers | 50.66% | Medium | Golang |
| 0378 | Kth Smallest Element in a Sorted Matrix | 61.75% | Medium | Golang |
| 0380 | Insert Delete GetRandom O(1) | 52.81% | Medium | Golang |
| 0387 | First Unique Character in a String | 59.41% | Easy | Golang |
| 0394 | Decode String | 57.97% | Medium | Golang |
| 0395 | Longest Substring with At Least K Repeating Characters | 44.78% | Medium | Golang |
| 0406 | Queue Reconstruction by Height | 72.90% | Medium | Golang |
| 0412 | Fizz Buzz | 69.68% | Easy | Golang |
| 0416 | Partition Equal Subset Sum | 46.35% | Medium | Golang |
| 0437 | Path Sum III | 48.16% | Medium | Golang |
| 0438 | Find All Anagrams in a String | 50.12% | Medium | Golang |
| 0448 | Find All Numbers Disappeared in an Array | 59.89% | Easy | Golang |
| 0452 | Minimum Number of Arrows to Burst Balloons | 55.28% | Medium | Golang |
| 0454 | 4Sum II | 57.23% | Medium | Golang |
| 0485 | Max Consecutive Ones | 56.45% | Easy | Golang |
| 0494 | Target Sum | 45.63% | Medium | Golang |
| 0518 | Coin Change II | 60.35% | Medium | Golang |
| 0520 | Detect Capital | 57.08% | Easy | Golang |
| 0540 | Single Element in a Sorted Array | 59.17% | Medium | Golang |
| 0543 | Diameter of Binary Tree | 56.59% | Easy | Golang |
| 0560 | Subarray Sum Equals K | 43.77% | Medium | Golang |
| 0581 | Shortest Unsorted Continuous Subarray | 36.41% | Medium | Golang |
| 0617 | Merge Two Binary Trees | 78.63% | Easy | Golang |
| 0621 | Task Scheduler | 56.21% | Medium | Golang |
| 0647 | Palindromic Substrings | 66.72% | Medium | Golang |
| 0735 | Asteroid Collision | 44.43% | Medium | Golang |
| 0739 | Daily Temperatures | 66.33% | Medium | Golang |
| 0763 | Partition Labels | 79.78% | Medium | Golang |
| 0704 | Binary Search | 55.36% | Easy | Golang |
| 0849 | Maximize Distance to Closest Person | 47.61% | Medium | Golang |
| 0859 | Buddy Strings | 29.14% | Easy | Golang |
| 1035 | Uncrossed Lines | 59.00% | Medium | Golang |
| 1376 | Time Needed to Inform All Employees | 58.35% | Medium | Golang |
| 1636 | Sort Array by Increasing Frequency | 69.34% | Easy | Golang |
| 1637 | Widest Vertical Area Between Two Points Containing No Points | 84.40% | Medium | Golang |
| 1669 | Merge In Between Linked Lists | 74.00% | Medium | Golang |
| Date | total | easy | medium | hard |
|---|---|---|---|---|
| 19/12/21 | 2 | 1 | 1 | 0 |
| 19/12/24 | 5 | 3 | 2 | 0 |
| 20/01/24 | 11 | 6 | 5 | 0 |
| 20/01/26 | 12 | 6 | 5 | 1 |
| 20/02/01 | 15 | 7 | 7 | 1 |
| 20/02/02 | 19 | 8 | 9 | 2 |
| 20/02/03 | 20 | 8 | 10 | 2 |
| 20/02/04 | 21 | 9 | 10 | 2 |
| 20/02/06 | 22 | 9 | 11 | 2 |
| 20/02/08 | 26 | 10 | 14 | 2 |
| 20/02/09 | 29 | 11 | 16 | 2 |
| 20/02/10 | 31 | 11 | 17 | 3 |
| 20/03/02 | 37 | 12 | 22 | 3 |
| 20/03/09 | 40 | 14 | 23 | 3 |
| 20/03/10 | 41 | 15 | 23 | 3 |
| 20/04/17 | 44 | 17 | 24 | 3 |
| 20/08/08 | 44 | 16 | 25 | 3 |
| 20/08/09 | 50 | 17 | 29 | 4 |
| 20/08/11 | 51 | 18 | 29 | 4 |
| 20/08/24 | 59 | 20 | 34 | 5 |
| 20/08/25 | 65 | 22 | 38 | 5 |
| 20/08/26 | 67 | 22 | 40 | 5 |
| 20/09/05 | 81 | 24 | 52 | 5 |
| 20/09/07 | 84 | 24 | 53 | 7 |
| 20/09/19 | 88 | 24 | 56 | 8 |
| 20/09/19 | 93 | 26 | 59 | 8 |
| 20/12/03 | 115 | 33 | 73 | 9 |
| 20/12/05 | 127 | 36 | 81 | 10 |
| 21/10/31 | 150 | 49 | 91 | 10 |
| 21/10/31 | 152 | 50 | 92 | 10 |
| 21/11/06 | 159 | 50 | 98 | 11 |
| 21/11/07 | 164 | 52 | 101 | 11 |
| 21/11/21 | 165 | 52 | 102 | 11 |
| 21/11/25 | 171 | 53 | 107 | 11 |
| 21/11/26 | 180 | 56 | 113 | 11 |
| 23/02/16 | 185 | 54 | 119 | 12 |
| 23/02/20 | 192 | 54 | 126 | 12 |
| 23/02/21 | 194 | 54 | 128 | 12 |
| 23/02/22 | 195 | 54 | 129 | 12 |