| index | title | code | Difficulty |
|---|---|---|---|
| 0001 | Two Sum | JavaScript TypeScript | Easy |
| 0002 | Add Two Numbers | JavaScript TypeScript | Medium |
| 0003 | Longest Substring Without Repeating Characters | JavaScript TypeScript | Medium |
| 0004 | Median of Two Sorted Arrays | JavaScript | Hard |
| 0005 | Longest Palindromic Substring | JavaScript | Medium |
| 0006 | ZigZag Conversion | JavaScript | Medium |
| 0007 | Reverse Integer | JavaScript | Easy |
| 0008 | String to Integer (atoi) | JavaScript | Medium |
| 0009 | Palindrome Number | JavaScript TypeScript | Easy |
| 0010 | Regular Expression Matching | JavaScript | Hard |
| 0011 | Container With Most Water | JavaScript | Medium |
| 0012 | Integer to Roman | JavaScript TypeScript | Medium |
| 0013 | Roman to Integer | JavaScript TypeScript | Easy |
| 0014 | Longest Common Prefix | JavaScript TypeScript | Easy |
| 0015 | 3Sum | JavaScript | Medium |
| 0016 | 3Sum Closest | JavaScript | Medium |
| 0017 | Letter Combinations of a Phone Number | JavaScript TypeScript | Medium |
| 0018 | 4Sum | JavaScript | Medium |
| 0019 | Remove Nth Node From End of List | JavaScript TypeScript | Medium |
| 0020 | Valid Parentheses | JavaScript TypeScript | Easy |
| 0021 | Merge Two Sorted Lists | JavaScript TypeScript | Easy |
| 0022 | Generate Parentheses | JavaScript TypeScript | Medium |
| 0023 | Merge k Sorted Lists | JavaScript | Hard |
| 0024 | Swap Nodes in Pairs | JavaScript | Medium |
| 0025 | Reverse Nodes in k-Group | JavaScript | Hard |
| 0026 | Remove Duplicates from Sorted Array | JavaScript TypeScript | Easy |
| 0027 | Remove Element | JavaScript TypeScript | Easy |
| 0028 | Implement strStr() | JavaScript | Easy |
| 0029 | Divide Two Integers | JavaScript | Medium |
| 0030 | Substring with Concatenation of All Words | Hard | |
| 0031 | Next Permutation | JavaScript | Medium |
| 0032 | Longest Valid Parentheses | JavaScript | Hard |
| 0033 | Search in Rotated Sorted Array | JavaScript | Medium |
| 0034 | Find First and Last Position of Element in Sorted Array | JavaScript TypeScript | Medium |
| 0035 | Search Insert Position | JavaScript TypeScript | Easy |
| 0036 | Valid Sudoku | JavaScript | Medium |
| 0037 | Sudoku Solver | Hard | |
| 0038 | Count and Say | JavaScript TypeScript | Easy |
| 0039 | Combination Sum | JavaScript TypeScript | Medium |
| 0040 | Combination Sum II | JavaScript TypeScript | Medium |
| 0041 | First Missing Positive | JavaScript TypeScript | Hard |
| 0042 | Trapping Rain Water | JavaScript | Hard |
| 0043 | Multiply Strings | JavaScript | Medium |
| 0044 | Wildcard Matching | JavaScript | Hard |
| 0045 | Jump Game II | JavaScript TypeScript | Medium |
| 0046 | Permutations | JavaScript TypeScript | Medium |
| 0047 | Permutations II | JavaScript TypeScript | Medium |
| 0048 | Rotate Image | JavaScript | Medium |
| 0049 | Group Anagrams | JavaScript TypeScript | Medium |
| 0050 | Pow(x, n) | JavaScript TypeScript | Medium |
| 0051 | N-Queens | Hard | |
| 0052 | N-Queens II | Hard | |
| 0053 | Maximum Subarray | JavaScript TypeScript | Easy |
| 0054 | Spiral Matrix | JavaScript TypeScript | Medium |
| 0055 | Jump Game | JavaScript TypeScript | Medium |
| 0056 | Merge Intervals | JavaScript | Medium |
| 0057 | Insert Interval | JavaScript | Medium |
| 0058 | Length of Last Word | JavaScript TypeScript | Easy |
| 0059 | Spiral Matrix II | JavaScript TypeScript | Medium |
| 0060 | Permutation Sequence | JavaScript | Hard |
| 0061 | Rotate List | JavaScript TypeScript | Medium |
| 0062 | Unique Paths | JavaScript TypeScript | Medium |
| 0063 | Unique Paths II | JavaScript TypeScript | Medium |
| 0064 | Minimum Path Sum | JavaScript TypeScript | Medium |
| 0065 | Valid Number | JavaScript | Hard |
| 0066 | Plus One | JavaScript TypeScript | Easy |
| 0067 | Add Binary | JavaScript TypeScript | Easy |
| 0068 | Text Justification | Hard | |
| 0069 | Sqrt(x) | JavaScript TypeScript | Easy |
| 0070 | Climbing Stairs | JavaScript TypeScript | Easy |
| 0071 | Simplify Path | JavaScript | Medium |
| 0072 | Edit Distance | Hard | |
| 0073 | Set Matrix Zeroes | JavaScript TypeScript | Medium |
| 0074 | Search a 2D Matrix | JavaScript TypeScript | Medium |
| 0075 | Sort Colors | JavaScript TypeScript | Medium |
| 0076 | Minimum Window Substring | JavaScript | Hard |
| 0077 | Combinations | JavaScript TypeScript | Medium |
| 0078 | Subsets | JavaScript TypeScript | Medium |
| 0079 | Word Search | JavaScript TypeScript | Medium |
| 0080 | Remove Duplicates from Sorted Array II | JavaScript TypeScript | Medium |
| 0081 | Search in Rotated Sorted Array II | JavaScript | Medium |
| 0082 | Remove Duplicates from Sorted List II | JavaScript | Medium |
| 0083 | Remove Duplicates from Sorted List | JavaScript TypeScript | Easy |
| 0084 | Largest Rectangle in Histogram | Hard | |
| 0085 | Maximal Rectangle | Hard | |
| 0086 | Partition List | JavaScript TypeScript | Medium |
| 0087 | Scramble String | Hard | |
| 0088 | Merge Sorted Array | JavaScript TypeScript | Easy |
| 0089 | Gray Code | JavaScript | Medium |
| 0090 | Subsets II | JavaScript TypeScript | Medium |
| 0091 | Decode Ways | JavaScript TypeScript | Medium |
| 0092 | Reverse Linked List II | JavaScript TypeScript | Medium |
| 0093 | Restore IP Addresses | JavaScript | Medium |
| 0094 | Binary Tree Inorder Traversal | JavaScript TypeScript | Medium |
| 0095 | Unique Binary Search Trees II | JavaScript | Medium |
| 0096 | Unique Binary Search Trees | JavaScript TypeScript | Medium |
| 0097 | Interleaving String | JavaScript | Medium |
| 0098 | Validate Binary Search Tree | JavaScript TypeScript | Medium |
| 0099 | Recover Binary Search Tree | JavaScript TypeScript | Hard |
| 0100 | Same Tree | JavaScript TypeScript | Easy |
| 0101 | Symmetric Tree | JavaScript TypeScript | Easy |
| 0102 | Binary Tree Level Order Traversal | JavaScript TypeScript | Medium |
| 0103 | Binary Tree Zigzag Level Order Traversal | JavaScript TypeScript | Medium |
| 0104 | Maximum Depth of Binary Tree | JavaScript TypeScript | Easy |
| 0105 | Construct Binary Tree from Preorder and Inorder Traversal | JavaScript TypeScript | Medium |
| 0106 | Construct Binary Tree from Inorder and Postorder Traversal | JavaScript TypeScript | Medium |
| 0107 | Binary Tree Level Order Traversal II | JavaScript TypeScript | Medium |
| 0108 | Convert Sorted Array to Binary Search Tree | JavaScript TypeScript | Easy |
| 0109 | Convert Sorted List to Binary Search Tree | JavaScript TypeScript | Medium |
| 0110 | Balanced Binary Tree | JavaScript TypeScript | Easy |
| 0111 | Minimum Depth of Binary Tree | JavaScript TypeScript | Easy |
| 0112 | Path Sum | JavaScript TypeScript | Easy |
| 0113 | Path Sum II | JavaScript TypeScript | Medium |
| 0114 | Flatten Binary Tree to Linked List | JavaScript TypeScript | Medium |
| 0115 | Distinct Subsequences | JavaScript | Hard |
| 0116 | Populating Next Right Pointers in Each Node | JavaScript TypeScript | Medium |
| 0117 | Populating Next Right Pointers in Each Node II | JavaScript TypeScript | Medium |
| 0118 | Pascal's Triangle | JavaScript TypeScript | Easy |
| 0119 | Pascal's Triangle II | JavaScript TypeScript | Easy |
| 0120 | Triangle | JavaScript TypeScript | Medium |
| 0121 | Best Time to Buy and Sell Stock | JavaScript TypeScript | Easy |
| 0122 | Best Time to Buy and Sell Stock II | JavaScript TypeScript | Easy |
| 0123 | Best Time to Buy and Sell Stock III | JavaScript | Hard |
| 0124 | Binary Tree Maximum Path Sum | JavaScript TypeScript | Hard |
| 0125 | Valid Palindrome | JavaScript TypeScript | Easy |
| 0126 | Word Ladder II | Hard | |
| 0127 | Word Ladder | JavaScript | Hard |
| 0128 | Longest Consecutive Sequence | JavaScript | Hard |
| 0129 | Sum Root to Leaf Numbers | JavaScript TypeScript | Medium |
| 0130 | Surrounded Regions | JavaScript | Medium |
| 0131 | Palindrome Partitioning | JavaScript | Medium |
| 0132 | Palindrome Partitioning II | JavaScript TypeScript | Hard |
| 0133 | Clone Graph | JavaScript | Medium |
| 0134 | Gas Station | JavaScript | Medium |
| 0135 | Candy | JavaScript TypeScript | Hard |
| 0136 | Single Number | JavaScript TypeScript | Easy |
| 0137 | Single Number II | JavaScript | Medium |
| 0138 | Copy List with Random Pointer | JavaScript | Medium |
| 0139 | Word Break | JavaScript | Medium |
| 0140 | Word Break II | JavaScript | Hard |
| 0141 | Linked List Cycle | JavaScript TypeScript | Easy |
| 0142 | Linked List Cycle II | JavaScript TypeScript | Medium |
| 0143 | Reorder List | JavaScript TypeScript | Medium |
| 0144 | Binary Tree Preorder Traversal | JavaScript TypeScript | Medium |
| 0145 | Binary Tree Postorder Traversal | JavaScript TypeScript | Medium |
| 0146 | LRU Cache | JavaScript | Medium |
| 0147 | Insertion Sort List | JavaScript | Medium |
| 0148 | Sort List | JavaScript | Medium |
| 0149 | Max Points on a Line | Hard | |
| 0150 | Evaluate Reverse Polish Notation | JavaScript TypeScript | Medium |
| 0151 | Reverse Words in a String | JavaScript TypeScript | Medium |
| 0152 | Maximum Product Subarray | JavaScript TypeScript | Medium |
| 0153 | Find Minimum in Rotated Sorted Array | JavaScript | Medium |
| 0154 | Find Minimum in Rotated Sorted Array II | JavaScript | Hard |
| 0155 | Min Stack | JavaScript TypeScript | Easy |
| 0156 | Binary Tree Upside Down | Medium | |
| 0157 | Read N Characters Given Read4 | Easy | |
| 0158 | Read N Characters Given Read4 II - Call multiple times | Hard | |
| 0159 | Longest Substring with At Most Two Distinct Characters | Medium | |
| 0160 | Intersection of Two Linked Lists | JavaScript TypeScript | Easy |
| 0161 | One Edit Distance | Medium | |
| 0162 | Find Peak Element | JavaScript TypeScript | Medium |
| 0163 | Missing Ranges | Easy | |
| 0164 | Maximum Gap | Hard | |
| 0165 | Compare Version Numbers | JavaScript TypeScript | Medium |
| 0166 | Fraction to Recurring Decimal | JavaScript | Medium |
| 0167 | Two Sum II - Input array is sorted | JavaScript TypeScript | Easy |
| 0168 | Excel Sheet Column Title | JavaScript TypeScript | Easy |
| 0169 | Majority Element | JavaScript TypeScript | Easy |
| 0170 | Two Sum III - Data structure design | Easy | |
| 0171 | Excel Sheet Column Number | JavaScript TypeScript | Easy |
| 0172 | Factorial Trailing Zeroes | JavaScript TypeScript | Easy |
| 0173 | Binary Search Tree Iterator | JavaScript TypeScript | Medium |
| 0174 | Dungeon Game | Hard | |
| 0175 | Combine Two Tables | Mysql | Easy |
| 0176 | Second Highest Salary | Mysql | Easy |
| 0177 | Nth Highest Salary | Mysql | Medium |
| 0178 | Rank Scores | Mysql | Medium |
| 0179 | Largest Number | JavaScript | Medium |
| 0180 | Consecutive Numbers | Mysql | Medium |
| 0181 | Employees Earning More Than Their Managers | Mysql | Easy |
| 0182 | Duplicate Emails | Mysql | Easy |
| 0183 | Customers Who Never Order | Mysql | Easy |
| 0184 | Department Highest Salary | Mysql | Medium |
| 0185 | Department Top Three Salaries | Hard | |
| 0186 | Reverse Words in a String II | Medium | |
| 0187 | Repeated DNA Sequences | JavaScript | Medium |
| 0188 | Best Time to Buy and Sell Stock IV | JavaScript | Hard |
| 0189 | Rotate Array | JavaScript TypeScript | Medium |
| 0190 | Reverse Bits | JavaScript | Easy |
| 0191 | Number of 1 Bits | JavaScript TypeScript | Easy |
| 0192 | Word Frequency | Medium | |
| 0193 | Valid Phone Numbers | Easy | |
| 0194 | Transpose File | Medium | |
| 0195 | Tenth Line | Easy | |
| 0196 | Delete Duplicate Emails | Mysql | Easy |
| 0197 | Rising Temperature | Mysql | Easy |
| 0198 | House Robber | JavaScript TypeScript | Medium |
| 0199 | Binary Tree Right Side View | JavaScript TypeScript | Medium |
| 0200 | Number of Islands | JavaScript TypeScript | Medium |
| 0201 | Bitwise AND of Numbers Range | JavaScript | Medium |
| 0202 | Happy Number | JavaScript TypeScript | Easy |
| 0203 | Remove Linked List Elements | JavaScript TypeScript | Easy |
| 0204 | Count Primes | JavaScript TypeScript | Easy |
| 0205 | Isomorphic Strings | JavaScript TypeScript | Easy |
| 0206 | Reverse Linked List | JavaScript TypeScript | Easy |
| 0207 | Course Schedule | JavaScript | Medium |
| 0208 | Implement Trie (Prefix Tree) | JavaScript | Medium |
| 0209 | Minimum Size Subarray Sum | JavaScript TypeScript | Medium |
| 0210 | Course Schedule II | Medium | |
| 0211 | Design Add and Search Words Data Structure | JavaScript | Medium |
| 0212 | Word Search II | Hard | |
| 0213 | House Robber II | JavaScript | Medium |
| 0214 | Shortest Palindrome | Hard | |
| 0215 | Kth Largest Element in an Array | JavaScript | Medium |
| 0216 | Combination Sum III | JavaScript TypeScript | Medium |
| 0217 | Contains Duplicate | JavaScript TypeScript | Easy |
| 0218 | The Skyline Problem | Hard | |
| 0219 | Contains Duplicate II | JavaScript TypeScript | Easy |
| 0220 | Contains Duplicate III | JavaScript | Medium |
| 0221 | Maximal Square | JavaScript | Medium |
| 0222 | Count Complete Tree Nodes | JavaScript TypeScript | Medium |
| 0223 | Rectangle Area | JavaScript | Medium |
| 0224 | Basic Calculator | Hard | |
| 0225 | Implement Stack using Queues | JavaScript TypeScript | Easy |
| 0226 | Invert Binary Tree | JavaScript TypeScript | Easy |
| 0227 | Basic Calculator II | Medium | |
| 0228 | Summary Ranges | JavaScript TypeScript | Easy |
| 0229 | Majority Element II | JavaScript | Medium |
| 0230 | Kth Smallest Element in a BST | JavaScript TypeScript | Medium |
| 0231 | Power of Two | JavaScript TypeScript | Easy |
| 0232 | Implement Queue using Stacks | JavaScript TypeScript | Easy |
| 0233 | Number of Digit One | JavaScript | Hard |
| 0234 | Palindrome Linked List | JavaScript TypeScript | Easy |
| 0235 | Lowest Common Ancestor of a Binary Search Tree | JavaScript TypeScript | Easy |
| 0236 | Lowest Common Ancestor of a Binary Tree | JavaScript TypeScript | Medium |
| 0237 | Delete Node in a Linked List | JavaScript TypeScript | Easy |
| 0238 | Product of Array Except Self | JavaScript TypeScript | Medium |
| 0239 | Sliding Window Maximum | JavaScript TypeScript | Hard |
| 0240 | Search a 2D Matrix II | JavaScript TypeScript | Medium |
| 0241 | Different Ways to Add Parentheses | Medium | |
| 0242 | Valid Anagram | JavaScript TypeScript | Easy |
| 0243 | Shortest Word Distance | Easy | |
| 0244 | Shortest Word Distance II | Medium | |
| 0245 | Shortest Word Distance III | Medium | |
| 0246 | Strobogrammatic Number | Easy | |
| 0247 | Strobogrammatic Number II | Medium | |
| 0248 | Strobogrammatic Number III | Hard | |
| 0249 | Group Shifted Strings | Medium | |
| 0250 | Count Univalue Subtrees | Medium | |
| 0251 | Flatten 2D Vector | Medium | |
| 0252 | Meeting Rooms | Easy | |
| 0253 | Meeting Rooms II | Medium | |
| 0254 | Factor Combinations | Medium | |
| 0255 | Verify Preorder Sequence in Binary Search Tree | Medium | |
| 0256 | Paint House | Medium | |
| 0257 | Binary Tree Paths | JavaScript TypeScript | Easy |
| 0258 | Add Digits | JavaScript TypeScript | Easy |
| 0259 | 3Sum Smaller | Medium | |
| 0260 | Single Number III | JavaScript TypeScript | Medium |
| 0261 | Graph Valid Tree | Medium | |
| 0262 | Trips and Users | Hard | |
| 0263 | Ugly Number | JavaScript TypeScript | Easy |
| 0264 | Ugly Number II | JavaScript | Medium |
| 0265 | Paint House II | Hard | |
| 0266 | Palindrome Permutation | Easy | |
| 0267 | Palindrome Permutation II | Medium | |
| 0268 | Missing Number | JavaScript TypeScript | Easy |
| 0269 | Alien Dictionary | Hard | |
| 0270 | Closest Binary Search Tree Value | Easy | |
| 0271 | Encode and Decode Strings | Medium | |
| 0272 | Closest Binary Search Tree Value II | Hard | |
| 0273 | Integer to English Words | JavaScript | Hard |
| 0274 | H-Index | JavaScript | Medium |
| 0275 | H-Index II | JavaScript | Medium |
| 0276 | Paint Fence | Medium | |
| 0277 | Find the Celebrity | Medium | |
| 0278 | First Bad Version | JavaScript TypeScript | Easy |
| 0279 | Perfect Squares | JavaScript TypeScript | Medium |
| 0280 | Wiggle Sort | Medium | |
| 0281 | Zigzag Iterator | Medium | |
| 0282 | Expression Add Operators | Hard | |
| 0283 | Move Zeroes | JavaScript TypeScript | Easy |
| 0284 | Peeking Iterator | JavaScript Python3 TypeScript | Medium |
| 0285 | Inorder Successor in BST | Medium | |
| 0286 | Walls and Gates | Medium | |
| 0287 | Find the Duplicate Number | JavaScript TypeScript | Medium |
| 0288 | Unique Word Abbreviation | Medium | |
| 0289 | Game of Life | JavaScript | Medium |
| 0290 | Word Pattern | JavaScript TypeScript | Easy |
| 0291 | Word Pattern II | Medium | |
| 0292 | Nim Game | JavaScript TypeScript | Easy |
| 0293 | Flip Game | Easy | |
| 0294 | Flip Game II | Medium | |
| 0295 | Find Median from Data Stream | JavaScript | Hard |
| 0296 | Best Meeting Point | Hard | |
| 0297 | Serialize and Deserialize Binary Tree | JavaScript TypeScript | Hard |
| 0298 | Binary Tree Longest Consecutive Sequence | Medium | |
| 0299 | Bulls and Cows | JavaScript | Medium |
| 0300 | Longest Increasing Subsequence | JavaScript TypeScript | Medium |
| 0301 | Remove Invalid Parentheses | Hard | |
| 0302 | Smallest Rectangle Enclosing Black Pixels | Hard | |
| 0303 | Range Sum Query - Immutable | JavaScript TypeScript | Easy |
| 0304 | Range Sum Query 2D - Immutable | JavaScript TypeScript | Medium |
| 0305 | Number of Islands II | Hard | |
| 0306 | Additive Number | JavaScript | Medium |
| 0307 | Range Sum Query - Mutable | JavaScript | Medium |
| 0308 | Range Sum Query 2D - Mutable | Hard | |
| 0309 | Best Time to Buy and Sell Stock with Cooldown | JavaScript | Medium |
| 0310 | Minimum Height Trees | JavaScript | Medium |
| 0311 | Sparse Matrix Multiplication | Medium | |
| 0312 | Burst Balloons | Hard | |
| 0313 | Super Ugly Number | JavaScript | Medium |
| 0314 | Binary Tree Vertical Order Traversal | Medium | |
| 0315 | Count of Smaller Numbers After Self | JavaScript | Hard |
| 0316 | Remove Duplicate Letters | JavaScript TypeScript | Medium |
| 0317 | Shortest Distance from All Buildings | Hard | |
| 0318 | Maximum Product of Word Lengths | JavaScript | Medium |
| 0319 | Bulb Switcher | JavaScript TypeScript | Medium |
| 0320 | Generalized Abbreviation | Medium | |
| 0321 | Create Maximum Number | Hard | |
| 0322 | Coin Change | JavaScript TypeScript | Medium |
| 0323 | Number of Connected Components in an Undirected Graph | Medium | |
| 0324 | Wiggle Sort II | Medium | |
| 0325 | Maximum Size Subarray Sum Equals k | Medium | |
| 0326 | Power of Three | JavaScript TypeScript | Easy |
| 0327 | Count of Range Sum | Hard | |
| 0328 | Odd Even Linked List | JavaScript | Medium |
| 0329 | Longest Increasing Path in a Matrix | JavaScript | Hard |
| 0330 | Patching Array | Hard | |
| 0331 | Verify Preorder Serialization of a Binary Tree | JavaScript | Medium |
| 0332 | Reconstruct Itinerary | Medium | |
| 0333 | Largest BST Subtree | Medium | |
| 0334 | Increasing Triplet Subsequence | JavaScript | Medium |
| 0335 | Self Crossing | Hard | |
| 0336 | Palindrome Pairs | Hard | |
| 0337 | House Robber III | JavaScript | Medium |
| 0338 | Counting Bits | JavaScript TypeScript | Medium |
| 0339 | Nested List Weight Sum | Easy | |
| 0340 | Longest Substring with At Most K Distinct Characters | Medium | |
| 0341 | Flatten Nested List Iterator | JavaScript | Medium |
| 0342 | Power of Four | JavaScript | Easy |
| 0343 | Integer Break | JavaScript | Medium |
| 0344 | Reverse String | JavaScript TypeScript | Easy |
| 0345 | Reverse Vowels of a String | JavaScript TypeScript | Easy |
| 0346 | Moving Average from Data Stream | Easy | |
| 0347 | Top K Frequent Elements | JavaScript | Medium |
| 0348 | Design Tic-Tac-Toe | Medium | |
| 0349 | Intersection of Two Arrays | JavaScript TypeScript | Easy |
| 0350 | Intersection of Two Arrays II | JavaScript TypeScript | Easy |
| 0351 | Android Unlock Patterns | Medium | |
| 0352 | Data Stream as Disjoint Intervals | JavaScript | Hard |
| 0353 | Design Snake Game | Medium | |
| 0354 | Russian Doll Envelopes | JavaScript | Hard |
| 0355 | Design Twitter | Medium | |
| 0356 | Line Reflection | Medium | |
| 0357 | Count Numbers with Unique Digits | JavaScript | Medium |
| 0358 | Rearrange String k Distance Apart | Hard | |
| 0359 | Logger Rate Limiter | Easy | |
| 0360 | Sort Transformed Array | Medium | |
| 0361 | Bomb Enemy | Medium | |
| 0362 | Design Hit Counter | Medium | |
| 0363 | Max Sum of Rectangle No Larger Than K | Hard | |
| 0364 | Nested List Weight Sum II | Medium | |
| 0365 | Water and Jug Problem | Medium | |
| 0366 | Find Leaves of Binary Tree | Medium | |
| 0367 | Valid Perfect Square | JavaScript TypeScript | Easy |
| 0368 | Largest Divisible Subset | Medium | |
| 0369 | Plus One Linked List | Medium | |
| 0370 | Range Addition | Medium | |
| 0371 | Sum of Two Integers | JavaScript TypeScript | Medium |
| 0372 | Super Pow | JavaScript | Medium |
| 0373 | Find K Pairs with Smallest Sums | JavaScript | Medium |
| 0374 | Guess Number Higher or Lower | JavaScript Python3 | Easy |
| 0375 | Guess Number Higher or Lower II | JavaScript | Medium |
| 0376 | Wiggle Subsequence | JavaScript | Medium |
| 0377 | Combination Sum IV | JavaScript TypeScript | Medium |
| 0378 | Kth Smallest Element in a Sorted Matrix | JavaScript | Medium |
| 0379 | Design Phone Directory | Medium | |
| 0380 | Insert Delete GetRandom O(1) | JavaScript | Medium |
| 0381 | Insert Delete GetRandom O(1) - Duplicates allowed | JavaScript | Hard |
| 0382 | Linked List Random Node | JavaScript | Medium |
| 0383 | Ransom Note | JavaScript TypeScript | Easy |
| 0384 | Shuffle an Array | JavaScript TypeScript | Medium |
| 0385 | Mini Parser | JavaScript | Medium |
| 0386 | Lexicographical Numbers | JavaScript TypeScript | Medium |
| 0387 | First Unique Character in a String | JavaScript TypeScript | Easy |
| 0388 | Longest Absolute File Path | JavaScript | Medium |
| 0389 | Find the Difference | JavaScript TypeScript | Easy |
| 0390 | Elimination Game | Medium | |
| 0391 | Perfect Rectangle | Hard | |
| 0392 | Is Subsequence | JavaScript TypeScript | Easy |
| 0393 | UTF-8 Validation | JavaScript | Medium |
| 0394 | Decode String | JavaScript | Medium |
| 0395 | Longest Substring with At Least K Repeating Characters | JavaScript | Medium |
| 0396 | Rotate Function | JavaScript | Medium |
| 0397 | Integer Replacement | JavaScript | Medium |
| 0398 | Random Pick Index | JavaScript | Medium |
| 0399 | Evaluate Division | Medium | |
| 0400 | Nth Digit | JavaScript | Medium |
| 0401 | Binary Watch | JavaScript | Easy |
| 0402 | Remove K Digits | Medium | |
| 0403 | Frog Jump | JavaScript | Hard |
| 0404 | Sum of Left Leaves | JavaScript TypeScript | Easy |
| 0405 | Convert a Number to Hexadecimal | JavaScript TypeScript | Easy |
| 0406 | Queue Reconstruction by Height | Medium | |
| 0407 | Trapping Rain Water II | Hard | |
| 0408 | Valid Word Abbreviation | Easy | |
| 0409 | Longest Palindrome | JavaScript TypeScript | Easy |
| 0410 | Split Array Largest Sum | JavaScript | Hard |
| 0411 | Minimum Unique Word Abbreviation | Hard | |
| 0412 | Fizz Buzz | JavaScript TypeScript | Easy |
| 0413 | Arithmetic Slices | JavaScript | Medium |
| 0414 | Third Maximum Number | JavaScript TypeScript | Easy |
| 0415 | Add Strings | JavaScript TypeScript | Easy |
| 0416 | Partition Equal Subset Sum | JavaScript TypeScript | Medium |
| 0417 | Pacific Atlantic Water Flow | JavaScript | Medium |
| 0418 | Sentence Screen Fitting | Medium | |
| 0419 | Battleships in a Board | JavaScript | Medium |
| 0420 | Strong Password Checker | Hard | |
| 0421 | Maximum XOR of Two Numbers in an Array | JavaScript | Medium |
| 0422 | Valid Word Square | Easy | |
| 0423 | Reconstruct Original Digits from English | JavaScript | Medium |
| 0424 | Longest Repeating Character Replacement | Medium | |
| 0425 | Word Squares | Hard | |
| 0426 | Convert Binary Search Tree to Sorted Doubly Linked List | Medium | |
| 0427 | Construct Quad Tree | JavaScript | Medium |
| 0428 | Serialize and Deserialize N-ary Tree | Hard | |
| 0429 | N-ary Tree Level Order Traversal | JavaScript TypeScript | Medium |
| 0430 | Flatten a Multilevel Doubly Linked List | JavaScript | Medium |
| 0431 | Encode N-ary Tree to Binary Tree | Hard | |
| 0432 | All O`one Data Structure | JavaScript | Hard |
| 0433 | Minimum Genetic Mutation | JavaScript | Medium |
| 0434 | Number of Segments in a String | JavaScript TypeScript | Easy |
| 0435 | Non-overlapping Intervals | JavaScript | Medium |
| 0436 | Find Right Interval | JavaScript | Medium |
| 0437 | Path Sum III | JavaScript TypeScript | Medium |
| 0438 | Find All Anagrams in a String | JavaScript | Medium |
| 0439 | Ternary Expression Parser | Medium | |
| 0440 | K-th Smallest in Lexicographical Order | Hard | |
| 0441 | Arranging Coins | JavaScript TypeScript | Easy |
| 0442 | Find All Duplicates in an Array | JavaScript TypeScript | Medium |
| 0443 | String Compression | JavaScript | Medium |
| 0444 | Sequence Reconstruction | Medium | |
| 0445 | Add Two Numbers II | JavaScript TypeScript | Medium |
| 0446 | Arithmetic Slices II - Subsequence | JavaScript | Hard |
| 0447 | Number of Boomerangs | JavaScript | Medium |
| 0448 | Find All Numbers Disappeared in an Array | JavaScript TypeScript | Easy |
| 0449 | Serialize and Deserialize BST | JavaScript TypeScript | Medium |
| 0450 | Delete Node in a BST | JavaScript TypeScript | Medium |
| 0451 | Sort Characters By Frequency | JavaScript | Medium |
| 0452 | Minimum Number of Arrows to Burst Balloons | Medium | |
| 0453 | Minimum Moves to Equal Array Elements | Easy | |
| 0454 | 4Sum II | JavaScript | Medium |
| 0455 | Assign Cookies | JavaScript TypeScript | Easy |
| 0456 | 132 Pattern | JavaScript | Medium |
| 0457 | Circular Array Loop | Medium | |
| 0458 | Poor Pigs | Hard | |
| 0459 | Repeated Substring Pattern | JavaScript TypeScript | Easy |
| 0460 | LFU Cache | JavaScript | Hard |
| 0461 | Hamming Distance | JavaScript TypeScript | Easy |
| 0462 | Minimum Moves to Equal Array Elements II | Medium | |
| 0463 | Island Perimeter | JavaScript | Easy |
| 0464 | Can I Win | Medium | |
| 0465 | Optimal Account Balancing | Hard | |
| 0466 | Count The Repetitions | Hard | |
| 0467 | Unique Substrings in Wraparound String | Medium | |
| 0468 | Validate IP Address | JavaScript | Medium |
| 0469 | Convex Polygon | Medium | |
| 0470 | Implement Rand10() Using Rand7() | JavaScript TypeScript | Medium |
| 0471 | Encode String with Shortest Length | Hard | |
| 0472 | Concatenated Words | Hard | |
| 0473 | Matchsticks to Square | JavaScript | Medium |
| 0474 | Ones and Zeroes | JavaScript | Medium |
| 0475 | Heaters | JavaScript | Medium |
| 0476 | Number Complement | JavaScript TypeScript | Easy |
| 0477 | Total Hamming Distance | JavaScript | Medium |
| 0478 | Generate Random Point in a Circle | JavaScript TypeScript | Medium |
| 0479 | Largest Palindrome Product | JavaScript TypeScript | Hard |
| 0480 | Sliding Window Median | JavaScript | Hard |
| 0481 | Magical String | Medium | |
| 0482 | License Key Formatting | JavaScript TypeScript | Easy |
| 0483 | Smallest Good Base | Hard | |
| 0484 | Find Permutation | Medium | |
| 0485 | Max Consecutive Ones | JavaScript TypeScript | Easy |
| 0486 | Predict the Winner | JavaScript | Medium |
| 0487 | Max Consecutive Ones II | Medium | |
| 0488 | Zuma Game | Hard | |
| 0489 | Robot Room Cleaner | Hard | |
| 0490 | The Maze | Medium | |
| 0491 | Increasing Subsequences | JavaScript | Medium |
| 0492 | Construct the Rectangle | JavaScript TypeScript | Easy |
| 0493 | Reverse Pairs | JavaScript | Hard |
| 0494 | Target Sum | JavaScript | Medium |
| 0495 | Teemo Attacking | JavaScript | Medium |
| 0496 | Next Greater Element I | JavaScript TypeScript | Easy |
| 0497 | Random Point in Non-overlapping Rectangles | JavaScript | Medium |
| 0498 | Diagonal Traverse | JavaScript | Medium |
| 0499 | The Maze III | Hard | |
| 0500 | Keyboard Row | JavaScript TypeScript | Easy |
| 0501 | Find Mode in Binary Search Tree | JavaScript TypeScript | Easy |
| 0502 | IPO | Hard | |
| 0503 | Next Greater Element II | JavaScript TypeScript | Medium |
| 0504 | Base 7 | JavaScript TypeScript | Easy |
| 0505 | The Maze II | Medium | |
| 0506 | Relative Ranks | JavaScript | Easy |
| 0507 | Perfect Number | JavaScript TypeScript | Easy |
| 0508 | Most Frequent Subtree Sum | JavaScript TypeScript | Medium |
| 0509 | Fibonacci Number | JavaScript TypeScript | Easy |
| 0510 | Inorder Successor in BST II | Medium | |
| 0511 | Game Play Analysis I | Easy | |
| 0512 | Game Play Analysis II | Easy | |
| 0513 | Find Bottom Left Tree Value | JavaScript TypeScript | Medium |
| 0514 | Freedom Trail | Hard | |
| 0515 | Find Largest Value in Each Tree Row | JavaScript TypeScript | Medium |
| 0516 | Longest Palindromic Subsequence | Medium | |
| 0517 | Super Washing Machines | Hard | |
| 0518 | Coin Change 2 | JavaScript TypeScript | Medium |
| 0519 | Random Flip Matrix | JavaScript | Medium |
| 0520 | Detect Capital | JavaScript TypeScript | Easy |
| 0521 | Longest Uncommon Subsequence I | JavaScript TypeScript | Easy |
| 0522 | Longest Uncommon Subsequence II | JavaScript | Medium |
| 0523 | Continuous Subarray Sum | JavaScript | Medium |
| 0524 | Longest Word in Dictionary through Deleting | JavaScript | Medium |
| 0525 | Contiguous Array | JavaScript | Medium |
| 0526 | Beautiful Arrangement | JavaScript | Medium |
| 0527 | Word Abbreviation | Hard | |
| 0528 | Random Pick with Weight | JavaScript | Medium |
| 0529 | Minesweeper | JavaScript | Medium |
| 0530 | Minimum Absolute Difference in BST | JavaScript TypeScript | Easy |
| 0531 | Lonely Pixel I | Medium | |
| 0532 | K-diff Pairs in an Array | JavaScript | Medium |
| 0533 | Lonely Pixel II | Medium | |
| 0534 | Game Play Analysis III | Medium | |
| 0535 | Encode and Decode TinyURL | JavaScript | Medium |
| 0536 | Construct Binary Tree from String | Medium | |
| 0537 | Complex Number Multiplication | JavaScript TypeScript | Medium |
| 0538 | Convert BST to Greater Tree | JavaScript TypeScript | Medium |
| 0539 | Minimum Time Difference | JavaScript TypeScript | Medium |
| 0540 | Single Element in a Sorted Array | JavaScript TypeScript | Medium |
| 0541 | Reverse String II | JavaScript TypeScript | Easy |
| 0542 | 01 Matrix | JavaScript | Medium |
| 0543 | Diameter of Binary Tree | JavaScript TypeScript | Easy |
| 0544 | Output Contest Matches | Medium | |
| 0545 | Boundary of Binary Tree | Medium | |
| 0546 | Remove Boxes | Hard | |
| 0547 | Number of Provinces | JavaScript TypeScript | Medium |
| 0548 | Split Array with Equal Sum | Medium | |
| 0549 | Binary Tree Longest Consecutive Sequence II | Medium | |
| 0550 | Game Play Analysis IV | Medium | |
| 0551 | Student Attendance Record I | JavaScript | Easy |
| 0552 | Student Attendance Record II | JavaScript | Hard |
| 0553 | Optimal Division | Medium | |
| 0554 | Brick Wall | JavaScript | Medium |
| 0555 | Split Concatenated Strings | Medium | |
| 0556 | Next Greater Element III | JavaScript | Medium |
| 0557 | Reverse Words in a String III | JavaScript TypeScript | Easy |
| 0558 | Logical OR of Two Binary Grids Represented as Quad-Trees | JavaScript | Medium |
| 0559 | Maximum Depth of N-ary Tree | JavaScript TypeScript | Easy |
| 0560 | Subarray Sum Equals K | JavaScript | Medium |
| 0561 | Array Partition I | JavaScript TypeScript | Easy |
| 0562 | Longest Line of Consecutive One in Matrix | Medium | |
| 0563 | Binary Tree Tilt | JavaScript TypeScript | Easy |
| 0564 | Find the Closest Palindrome | Hard | |
| 0565 | Array Nesting | JavaScript | Medium |
| 0566 | Reshape the Matrix | JavaScript TypeScript | Easy |
| 0567 | Permutation in String | JavaScript TypeScript | Medium |
| 0568 | Maximum Vacation Days | Hard | |
| 0569 | Median Employee Salary | Hard | |
| 0570 | Managers with at Least 5 Direct Reports | Medium | |
| 0571 | Find Median Given Frequency of Numbers | Hard | |
| 0572 | Subtree of Another Tree | JavaScript TypeScript | Easy |
| 0573 | Squirrel Simulation | Medium | |
| 0574 | Winning Candidate | Medium | |
| 0575 | Distribute Candies | JavaScript TypeScript | Easy |
| 0576 | Out of Boundary Paths | JavaScript | Medium |
| 0577 | Employee Bonus | Easy | |
| 0578 | Get Highest Answer Rate Question | Medium | |
| 0579 | Find Cumulative Salary of an Employee | Hard | |
| 0580 | Count Student Number in Departments | Medium | |
| 0581 | Shortest Unsorted Continuous Subarray | JavaScript | Medium |
| 0582 | Kill Process | Medium | |
| 0583 | Delete Operation for Two Strings | JavaScript | Medium |
| 0584 | Find Customer Referee | Easy | |
| 0585 | Investments in 2016 | Medium | |
| 0586 | Customer Placing the Largest Number of Orders | Easy | |
| 0587 | Erect the Fence | Hard | |
| 0588 | Design In-Memory File System | Hard | |
| 0589 | N-ary Tree Preorder Traversal | JavaScript TypeScript | Easy |
| 0590 | N-ary Tree Postorder Traversal | JavaScript TypeScript | Easy |
| 0591 | Tag Validator | Hard | |
| 0592 | Fraction Addition and Subtraction | JavaScript | Medium |
| 0593 | Valid Square | JavaScript TypeScript | Medium |
| 0594 | Longest Harmonious Subsequence | JavaScript | Easy |
| 0595 | Big Countries | Mysql | Easy |
| 0596 | Classes More Than 5 Students | Mysql | Easy |
| 0597 | Friend Requests I: Overall Acceptance Rate | Easy | |
| 0598 | Range Addition II | JavaScript | Easy |
| 0599 | Minimum Index Sum of Two Lists | JavaScript TypeScript | Easy |
| 0600 | Non-negative Integers without Consecutive Ones | Hard | |
| 0601 | Human Traffic of Stadium | Hard | |
| 0602 | Friend Requests II: Who Has the Most Friends | Medium | |
| 0603 | Consecutive Available Seats | Easy | |
| 0604 | Design Compressed String Iterator | Easy | |
| 0605 | Can Place Flowers | JavaScript TypeScript | Easy |
| 0606 | Construct String from Binary Tree | JavaScript TypeScript | Easy |
| 0607 | Sales Person | Easy | |
| 0608 | Tree Node | Medium | |
| 0609 | Find Duplicate File in System | JavaScript | Medium |
| 0610 | Triangle Judgement | Easy | |
| 0611 | Valid Triangle Number | JavaScript | Medium |
| 0612 | Shortest Distance in a Plane | Medium | |
| 0613 | Shortest Distance in a Line | Easy | |
| 0614 | Second Degree Follower | Medium | |
| 0615 | Average Salary: Departments VS Company | Hard | |
| 0616 | Add Bold Tag in String | Medium | |
| 0617 | Merge Two Binary Trees | JavaScript TypeScript | Easy |
| 0618 | Students Report By Geography | Hard | |
| 0619 | Biggest Single Number | Easy | |
| 0620 | Not Boring Movies | Mysql | Easy |
| 0621 | Task Scheduler | Medium | |
| 0622 | Design Circular Queue | JavaScript | Medium |
| 0623 | Add One Row to Tree | JavaScript TypeScript | Medium |
| 0624 | Maximum Distance in Arrays | Medium | |
| 0625 | Minimum Factorization | Medium | |
| 0626 | Exchange Seats | Mysql | Medium |
| 0627 | Swap Salary | Mysql | Easy |
| 0628 | Maximum Product of Three Numbers | JavaScript TypeScript | Easy |
| 0629 | K Inverse Pairs Array | Hard | |
| 0630 | Course Schedule III | Hard | |
| 0631 | Design Excel Sum Formula | Hard | |
| 0632 | Smallest Range Covering Elements from K Lists | Hard | |
| 0633 | Sum of Square Numbers | JavaScript TypeScript | Medium |
| 0634 | Find the Derangement of An Array | Medium | |
| 0635 | Design Log Storage System | Medium | |
| 0636 | Exclusive Time of Functions | JavaScript | Medium |
| 0637 | Average of Levels in Binary Tree | JavaScript TypeScript | Easy |
| 0638 | Shopping Offers | Medium | |
| 0639 | Decode Ways II | Hard | |
| 0640 | Solve the Equation | JavaScript | Medium |
| 0641 | Design Circular Deque | JavaScript | Medium |
| 0642 | Design Search Autocomplete System | Hard | |
| 0643 | Maximum Average Subarray I | JavaScript TypeScript | Easy |
| 0644 | Maximum Average Subarray II | Hard | |
| 0645 | Set Mismatch | JavaScript TypeScript | Easy |
| 0646 | Maximum Length of Pair Chain | JavaScript | Medium |
| 0647 | Palindromic Substrings | JavaScript | Medium |
| 0648 | Replace Words | JavaScript | Medium |
| 0649 | Dota2 Senate | Medium | |
| 0650 | 2 Keys Keyboard | JavaScript | Medium |
| 0651 | 4 Keys Keyboard | Medium | |
| 0652 | Find Duplicate Subtrees | JavaScript | Medium |
| 0653 | Two Sum IV - Input is a BST | JavaScript TypeScript | Easy |
| 0654 | Maximum Binary Tree | JavaScript TypeScript | Medium |
| 0655 | Print Binary Tree | JavaScript | Medium |
| 0656 | Coin Path | Hard | |
| 0657 | Robot Return to Origin | JavaScript | Easy |
| 0658 | Find K Closest Elements | JavaScript | Medium |
| 0659 | Split Array into Consecutive Subsequences | Medium | |
| 0660 | Remove 9 | Hard | |
| 0661 | Image Smoother | JavaScript TypeScript | Easy |
| 0662 | Maximum Width of Binary Tree | JavaScript | Medium |
| 0663 | Equal Tree Partition | Medium | |
| 0664 | Strange Printer | Hard | |
| 0665 | Non-decreasing Array | JavaScript TypeScript | Easy |
| 0666 | Path Sum IV | Medium | |
| 0667 | Beautiful Arrangement II | Medium | |
| 0668 | Kth Smallest Number in Multiplication Table | Hard | |
| 0669 | Trim a Binary Search Tree | JavaScript TypeScript | Medium |
| 0670 | Maximum Swap | JavaScript | Medium |
| 0671 | Second Minimum Node In a Binary Tree | JavaScript TypeScript | Easy |
| 0672 | Bulb Switcher II | Medium | |
| 0673 | Number of Longest Increasing Subsequence | JavaScript | Medium |
| 0674 | Longest Continuous Increasing Subsequence | JavaScript TypeScript | Easy |
| 0675 | Cut Off Trees for Golf Event | Hard | |
| 0676 | Implement Magic Dictionary | JavaScript | Medium |
| 0677 | Map Sum Pairs | JavaScript | Medium |
| 0678 | Valid Parenthesis String | JavaScript | Medium |
| 0679 | 24 Game | Hard | |
| 0680 | Valid Palindrome II | JavaScript TypeScript | Easy |
| 0681 | Next Closest Time | Medium | |
| 0682 | Baseball Game | JavaScript TypeScript | Easy |
| 0683 | K Empty Slots | Hard | |
| 0684 | Redundant Connection | JavaScript | Medium |
| 0685 | Redundant Connection II | Hard | |
| 0686 | Repeated String Match | JavaScript | Medium |
| 0687 | Longest Univalue Path | JavaScript | Medium |
| 0688 | Knight Probability in Chessboard | Medium | |
| 0689 | Maximum Sum of 3 Non-Overlapping Subarrays | Hard | |
| 0690 | Employee Importance | JavaScript Python3 TypeScript | Easy |
| 0691 | Stickers to Spell Word | Hard | |
| 0692 | Top K Frequent Words | JavaScript | Medium |
| 0693 | Binary Number with Alternating Bits | JavaScript TypeScript | Easy |
| 0694 | Number of Distinct Islands | Medium | |
| 0695 | Max Area of Island | JavaScript | Medium |
| 0696 | Count Binary Substrings | JavaScript | Easy |
| 0697 | Degree of an Array | JavaScript TypeScript | Easy |
| 0698 | Partition to K Equal Sum Subsets | Medium | |
| 0699 | Falling Squares | Hard | |
| 0700 | Search in a Binary Search Tree | JavaScript TypeScript | Easy |
| 0701 | Insert into a Binary Search Tree | JavaScript TypeScript | Medium |
| 0702 | Search in a Sorted Array of Unknown Size | Medium | |
| 0703 | Kth Largest Element in a Stream | JavaScript TypeScript | Easy |
| 0704 | Binary Search | JavaScript TypeScript | Easy |
| 0705 | Design HashSet | JavaScript | Easy |
| 0706 | Design HashMap | JavaScript | Easy |
| 0707 | Design Linked List | JavaScript | Medium |
| 0708 | Insert into a Sorted Circular Linked List | Medium | |
| 0709 | To Lower Case | JavaScript TypeScript | Easy |
| 0710 | Random Pick with Blacklist | JavaScript | Hard |
| 0711 | Number of Distinct Islands II | Hard | |
| 0712 | Minimum ASCII Delete Sum for Two Strings | JavaScript | Medium |
| 0713 | Subarray Product Less Than K | JavaScript | Medium |
| 0714 | Best Time to Buy and Sell Stock with Transaction Fee | JavaScript | Medium |
| 0715 | Range Module | JavaScript | Hard |
| 0716 | Max Stack | Easy | |
| 0717 | 1-bit and 2-bit Characters | JavaScript TypeScript | Easy |
| 0718 | Maximum Length of Repeated Subarray | JavaScript | Medium |
| 0719 | Find K-th Smallest Pair Distance | Hard | |
| 0720 | Longest Word in Dictionary | JavaScript | Easy |
| 0721 | Accounts Merge | JavaScript | Medium |
| 0722 | Remove Comments | JavaScript | Medium |
| 0723 | Candy Crush | Medium | |
| 0724 | Find Pivot Index | JavaScript TypeScript | Easy |
| 0725 | Split Linked List in Parts | JavaScript | Medium |
| 0726 | Number of Atoms | JavaScript | Hard |
| 0727 | Minimum Window Subsequence | Hard | |
| 0728 | Self Dividing Numbers | JavaScript TypeScript | Easy |
| 0729 | My Calendar I | JavaScript | Medium |
| 0730 | Count Different Palindromic Subsequences | Hard | |
| 0731 | My Calendar II | Medium | |
| 0732 | My Calendar III | Hard | |
| 0733 | Flood Fill | JavaScript TypeScript | Easy |
| 0734 | Sentence Similarity | Easy | |
| 0735 | Asteroid Collision | JavaScript TypeScript | Medium |
| 0736 | Parse Lisp Expression | Hard | |
| 0737 | Sentence Similarity II | Medium | |
| 0738 | Monotone Increasing Digits | JavaScript | Medium |
| 0739 | Daily Temperatures | JavaScript TypeScript | Medium |
| 0740 | Delete and Earn | JavaScript | Medium |
| 0741 | Cherry Pickup | Hard | |
| 0742 | Closest Leaf in a Binary Tree | Medium | |
| 0743 | Network Delay Time | JavaScript | Medium |
| 0744 | Find Smallest Letter Greater Than Target | JavaScript TypeScript | Easy |
| 0745 | Prefix and Suffix Search | Hard | |
| 0746 | Min Cost Climbing Stairs | JavaScript TypeScript | Easy |
| 0747 | Largest Number At Least Twice of Others | JavaScript TypeScript | Easy |
| 0748 | Shortest Completing Word | JavaScript | Easy |
| 0749 | Contain Virus | Hard | |
| 0750 | Number Of Corner Rectangles | Medium | |
| 0751 | IP to CIDR | Easy | |
| 0752 | Open the Lock | JavaScript | Medium |
| 0753 | Cracking the Safe | Hard | |
| 0754 | Reach a Number | Medium | |
| 0755 | Pour Water | Medium | |
| 0756 | Pyramid Transition Matrix | JavaScript | Medium |
| 0757 | Set Intersection Size At Least Two | Hard | |
| 0758 | Bold Words in String | Easy | |
| 0759 | Employee Free Time | Hard | |
| 0760 | Find Anagram Mappings | Easy | |
| 0761 | Special Binary String | Hard | |
| 0762 | Prime Number of Set Bits in Binary Representation | JavaScript | Easy |
| 0763 | Partition Labels | JavaScript TypeScript | Medium |
| 0764 | Largest Plus Sign | Medium | |
| 0765 | Couples Holding Hands | Hard | |
| 0766 | Toeplitz Matrix | JavaScript TypeScript | Easy |
| 0767 | Reorganize String | JavaScript | Medium |
| 0768 | Max Chunks To Make Sorted II | JavaScript | Hard |
| 0769 | Max Chunks To Make Sorted | JavaScript | Medium |
| 0770 | Basic Calculator IV | Hard | |
| 0771 | Jewels and Stones | JavaScript TypeScript | Easy |
| 0772 | Basic Calculator III | Hard | |
| 0773 | Sliding Puzzle | Hard | |
| 0774 | Minimize Max Distance to Gas Station | Hard | |
| 0775 | Global and Local Inversions | JavaScript | Medium |
| 0776 | Split BST | Medium | |
| 0777 | Swap Adjacent in LR String | JavaScript | Medium |
| 0778 | Swim in Rising Water | Hard | |
| 0779 | K-th Symbol in Grammar | Medium | |
| 0780 | Reaching Points | Hard | |
| 0781 | Rabbits in Forest | JavaScript | Medium |
| 0782 | Transform to Chessboard | Hard | |
| 0783 | Minimum Distance Between BST Nodes | JavaScript TypeScript | Easy |
| 0784 | Letter Case Permutation | JavaScript TypeScript | Medium |
| 0785 | Is Graph Bipartite? | JavaScript | Medium |
| 0786 | K-th Smallest Prime Fraction | Hard | |
| 0787 | Cheapest Flights Within K Stops | Medium | |
| 0788 | Rotated Digits | JavaScript | Easy |
| 0789 | Escape The Ghosts | JavaScript TypeScript | Medium |
| 0790 | Domino and Tromino Tiling | Medium | |
| 0791 | Custom Sort String | JavaScript TypeScript | Medium |
| 0792 | Number of Matching Subsequences | JavaScript | Medium |
| 0793 | Preimage Size of Factorial Zeroes Function | Hard | |
| 0794 | Valid Tic-Tac-Toe State | JavaScript | Medium |
| 0795 | Number of Subarrays with Bounded Maximum | JavaScript | Medium |
| 0796 | Rotate String | JavaScript TypeScript | Easy |
| 0797 | All Paths From Source to Target | JavaScript | Medium |
| 0798 | Smallest Rotation with Highest Score | Hard | |
| 0799 | Champagne Tower | JavaScript | Medium |
| 0800 | Similar RGB Color | Easy | |
| 0801 | Minimum Swaps To Make Sequences Increasing | Medium | |
| 0802 | Find Eventual Safe States | JavaScript | Medium |
| 0803 | Bricks Falling When Hit | Hard | |
| 0804 | Unique Morse Code Words | JavaScript TypeScript | Easy |
| 0805 | Split Array With Same Average | Hard | |
| 0806 | Number of Lines To Write String | JavaScript TypeScript | Easy |
| 0807 | Max Increase to Keep City Skyline | JavaScript TypeScript | Medium |
| 0808 | Soup Servings | Medium | |
| 0809 | Expressive Words | JavaScript | Medium |
| 0810 | Chalkboard XOR Game | Hard | |
| 0811 | Subdomain Visit Count | JavaScript TypeScript | Easy |
| 0812 | Largest Triangle Area | JavaScript | Easy |
| 0813 | Largest Sum of Averages | JavaScript | Medium |
| 0814 | Binary Tree Pruning | JavaScript TypeScript | Medium |
| 0815 | Bus Routes | Hard | |
| 0816 | Ambiguous Coordinates | JavaScript | Medium |
| 0817 | Linked List Components | JavaScript | Medium |
| 0818 | Race Car | Hard | |
| 0819 | Most Common Word | JavaScript | Easy |
| 0820 | Short Encoding of Words | JavaScript | Medium |
| 0821 | Shortest Distance to a Character | JavaScript TypeScript | Easy |
| 0822 | Card Flipping Game | JavaScript | Medium |
| 0823 | Binary Trees With Factors | JavaScript | Medium |
| 0824 | Goat Latin | JavaScript TypeScript | Easy |
| 0825 | Friends Of Appropriate Ages | JavaScript | Medium |
| 0826 | Most Profit Assigning Work | JavaScript | Medium |
| 0827 | Making A Large Island | Hard | |
| 0828 | Count Unique Characters of All Substrings of a Given String | Hard | |
| 0829 | Consecutive Numbers Sum | Hard | |
| 0830 | Positions of Large Groups | JavaScript TypeScript | Easy |
| 0831 | Masking Personal Information | JavaScript | Medium |
| 0832 | Flipping an Image | JavaScript TypeScript | Easy |
| 0833 | Find And Replace in String | JavaScript | Medium |
| 0834 | Sum of Distances in Tree | JavaScript | Hard |
| 0835 | Image Overlap | Medium | |
| 0836 | Rectangle Overlap | JavaScript | Easy |
| 0837 | New 21 Game | Medium | |
| 0838 | Push Dominoes | JavaScript | Medium |
| 0839 | Similar String Groups | Hard | |
| 0840 | Magic Squares In Grid | JavaScript | Medium |
| 0841 | Keys and Rooms | JavaScript | Medium |
| 0842 | Split Array into Fibonacci Sequence | JavaScript | Medium |
| 0843 | Guess the Word | Hard | |
| 0844 | Backspace String Compare | JavaScript TypeScript | Easy |
| 0845 | Longest Mountain in Array | JavaScript | Medium |
| 0846 | Hand of Straights | JavaScript TypeScript | Medium |
| 0847 | Shortest Path Visiting All Nodes | Hard | |
| 0848 | Shifting Letters | JavaScript TypeScript | Medium |
| 0849 | Maximize Distance to Closest Person | JavaScript TypeScript | Medium |
| 0850 | Rectangle Area II | Hard | |
| 0851 | Loud and Rich | JavaScript | Medium |
| 0852 | Peak Index in a Mountain Array | JavaScript TypeScript | Easy |
| 0853 | Car Fleet | JavaScript | Medium |
| 0854 | K-Similar Strings | Hard | |
| 0855 | Exam Room | Medium | |
| 0856 | Score of Parentheses | JavaScript | Medium |
| 0857 | Minimum Cost to Hire K Workers | Hard | |
| 0858 | Mirror Reflection | Medium | |
| 0859 | Buddy Strings | JavaScript TypeScript | Easy |
| 0860 | Lemonade Change | JavaScript TypeScript | Easy |
| 0861 | Score After Flipping Matrix | JavaScript TypeScript | Medium |
| 0862 | Shortest Subarray with Sum at Least K | JavaScript | Hard |
| 0863 | All Nodes Distance K in Binary Tree | JavaScript TypeScript | Medium |
| 0864 | Shortest Path to Get All Keys | Hard | |
| 0865 | Smallest Subtree with all the Deepest Nodes | JavaScript TypeScript | Medium |
| 0866 | Prime Palindrome | JavaScript TypeScript | Medium |
| 0867 | Transpose Matrix | JavaScript TypeScript | Easy |
| 0868 | Binary Gap | JavaScript TypeScript | Easy |
| 0869 | Reordered Power of 2 | JavaScript TypeScript | Medium |
| 0870 | Advantage Shuffle | JavaScript | Medium |
| 0871 | Minimum Number of Refueling Stops | Hard | |
| 0872 | Leaf-Similar Trees | JavaScript TypeScript | Easy |
| 0873 | Length of Longest Fibonacci Subsequence | JavaScript | Medium |
| 0874 | Walking Robot Simulation | JavaScript | Easy |
| 0875 | Koko Eating Bananas | JavaScript | Medium |
| 0876 | Middle of the Linked List | JavaScript TypeScript | Easy |
| 0877 | Stone Game | JavaScript | Medium |
| 0878 | Nth Magical Number | Hard | |
| 0879 | Profitable Schemes | Hard | |
| 0880 | Decoded String at Index | Medium | |
| 0881 | Boats to Save People | JavaScript | Medium |
| 0882 | Reachable Nodes In Subdivided Graph | Hard | |
| 0883 | Projection Area of 3D Shapes | JavaScript | Easy |
| 0884 | Uncommon Words from Two Sentences | JavaScript TypeScript | Easy |
| 0885 | Spiral Matrix III | JavaScript | Medium |
| 0886 | Possible Bipartition | JavaScript | Medium |
| 0887 | Super Egg Drop | Hard | |
| 0888 | Fair Candy Swap | JavaScript TypeScript | Easy |
| 0889 | Construct Binary Tree from Preorder and Postorder Traversal | JavaScript | Medium |
| 0890 | Find and Replace Pattern | JavaScript | Medium |
| 0891 | Sum of Subsequence Widths | Hard | |
| 0892 | Surface Area of 3D Shapes | JavaScript | Easy |
| 0893 | Groups of Special-Equivalent Strings | JavaScript TypeScript | Easy |
| 0894 | All Possible Full Binary Trees | JavaScript | Medium |
| 0895 | Maximum Frequency Stack | JavaScript | Hard |
| 0896 | Monotonic Array | JavaScript TypeScript | Easy |
| 0897 | Increasing Order Search Tree | JavaScript TypeScript | Easy |
| 0898 | Bitwise ORs of Subarrays | Medium | |
| 0899 | Orderly Queue | Hard | |
| 0900 | RLE Iterator | JavaScript TypeScript | Medium |
| 0901 | Online Stock Span | JavaScript TypeScript | Medium |
| 0902 | Numbers At Most N Given Digit Set | Hard | |
| 0903 | Valid Permutations for DI Sequence | Hard | |
| 0904 | Fruit Into Baskets | Medium | |
| 0905 | Sort Array By Parity | JavaScript TypeScript | Easy |
| 0906 | Super Palindromes | Hard | |
| 0907 | Sum of Subarray Minimums | JavaScript | Medium |
| 0908 | Smallest Range I | JavaScript TypeScript | Easy |
| 0909 | Snakes and Ladders | Medium | |
| 0910 | Smallest Range II | Medium | |
| 0911 | Online Election | Medium | |
| 0912 | Sort an Array | JavaScript TypeScript | Medium |
| 0913 | Cat and Mouse | Hard | |
| 0914 | X of a Kind in a Deck of Cards | JavaScript | Easy |
| 0915 | Partition Array into Disjoint Intervals | JavaScript | Medium |
| 0916 | Word Subsets | JavaScript | Medium |
| 0917 | Reverse Only Letters | JavaScript TypeScript | Easy |
| 0918 | Maximum Sum Circular Subarray | JavaScript | Medium |
| 0919 | Complete Binary Tree Inserter | JavaScript TypeScript | Medium |
| 0920 | Number of Music Playlists | Hard | |
| 0921 | Minimum Add to Make Parentheses Valid | JavaScript | Medium |
| 0922 | Sort Array By Parity II | JavaScript TypeScript | Easy |
| 0923 | 3Sum With Multiplicity | JavaScript | Medium |
| 0924 | Minimize Malware Spread | Hard | |
| 0925 | Long Pressed Name | JavaScript TypeScript | Easy |
| 0926 | Flip String to Monotone Increasing | JavaScript | Medium |
| 0927 | Three Equal Parts | Hard | |
| 0928 | Minimize Malware Spread II | Hard | |
| 0929 | Unique Email Addresses | JavaScript | Easy |
| 0930 | Binary Subarrays With Sum | JavaScript | Medium |
| 0931 | Minimum Falling Path Sum | JavaScript TypeScript | Medium |
| 0932 | Beautiful Array | Medium | |
| 0933 | Number of Recent Calls | JavaScript TypeScript | Easy |
| 0934 | Shortest Bridge | JavaScript | Medium |
| 0935 | Knight Dialer | JavaScript | Medium |
| 0936 | Stamping The Sequence | Hard | |
| 0937 | Reorder Data in Log Files | JavaScript | Easy |
| 0938 | Range Sum of BST | JavaScript TypeScript | Easy |
| 0939 | Minimum Area Rectangle | JavaScript | Medium |
| 0940 | Distinct Subsequences II | JavaScript | Hard |
| 0941 | Valid Mountain Array | JavaScript TypeScript | Easy |
| 0942 | DI String Match | JavaScript | Easy |
| 0943 | Find the Shortest Superstring | Hard | |
| 0944 | Delete Columns to Make Sorted | JavaScript TypeScript | Easy |
| 0945 | Minimum Increment to Make Array Unique | JavaScript | Medium |
| 0946 | Validate Stack Sequences | JavaScript TypeScript | Medium |
| 0947 | Most Stones Removed with Same Row or Column | JavaScript | Medium |
| 0948 | Bag of Tokens | JavaScript | Medium |
| 0949 | Largest Time for Given Digits | JavaScript | Medium |
| 0950 | Reveal Cards In Increasing Order | JavaScript | Medium |
| 0951 | Flip Equivalent Binary Trees | JavaScript TypeScript | Medium |
| 0952 | Largest Component Size by Common Factor | Hard | |
| 0953 | Verifying an Alien Dictionary | JavaScript TypeScript | Easy |
| 0954 | Array of Doubled Pairs | JavaScript | Medium |
| 0955 | Delete Columns to Make Sorted II | JavaScript | Medium |
| 0956 | Tallest Billboard | Hard | |
| 0957 | Prison Cells After N Days | JavaScript | Medium |
| 0958 | Check Completeness of a Binary Tree | JavaScript TypeScript | Medium |
| 0959 | Regions Cut By Slashes | JavaScript | Medium |
| 0960 | Delete Columns to Make Sorted III | Hard | |
| 0961 | N-Repeated Element in Size 2N Array | JavaScript TypeScript | Easy |
| 0962 | Maximum Width Ramp | JavaScript TypeScript | Medium |
| 0963 | Minimum Area Rectangle II | Medium | |
| 0964 | Least Operators to Express Number | Hard | |
| 0965 | Univalued Binary Tree | JavaScript TypeScript | Easy |
| 0966 | Vowel Spellchecker | JavaScript | Medium |
| 0967 | Numbers With Same Consecutive Differences | JavaScript | Medium |
| 0968 | Binary Tree Cameras | JavaScript | Hard |
| 0969 | Pancake Sorting | JavaScript | Medium |
| 0970 | Powerful Integers | JavaScript | Medium |
| 0971 | Flip Binary Tree To Match Preorder Traversal | JavaScript | Medium |
| 0972 | Equal Rational Numbers | JavaScript | Hard |
| 0973 | K Closest Points to Origin | JavaScript | Medium |
| 0974 | Subarray Sums Divisible by K | JavaScript | Medium |
| 0975 | Odd Even Jump | JavaScript | Hard |
| 0976 | Largest Perimeter Triangle | JavaScript | Easy |
| 0977 | Squares of a Sorted Array | JavaScript TypeScript | Easy |
| 0978 | Longest Turbulent Subarray | JavaScript TypeScript | Medium |
| 0979 | Distribute Coins in Binary Tree | JavaScript | Medium |
| 0980 | Unique Paths III | Hard | |
| 0981 | Time Based Key-Value Store | JavaScript | Medium |
| 0982 | Triples with Bitwise AND Equal To Zero | Hard | |
| 0983 | Minimum Cost For Tickets | JavaScript | Medium |
| 0984 | String Without AAA or BBB | JavaScript | Medium |
| 0985 | Sum of Even Numbers After Queries | JavaScript | Easy |
| 0986 | Interval List Intersections | JavaScript | Medium |
| 0987 | Vertical Order Traversal of a Binary Tree | JavaScript TypeScript | Hard |
| 0988 | Smallest String Starting From Leaf | JavaScript TypeScript | Medium |
| 0989 | Add to Array-Form of Integer | JavaScript TypeScript | Easy |
| 0990 | Satisfiability of Equality Equations | JavaScript | Medium |
| 0991 | Broken Calculator | Medium | |
| 0992 | Subarrays with K Different Integers | JavaScript | Hard |
| 0993 | Cousins in Binary Tree | JavaScript TypeScript | Easy |
| 0994 | Rotting Oranges | JavaScript | Medium |
| 0995 | Minimum Number of K Consecutive Bit Flips | Hard | |
| 0996 | Number of Squareful Arrays | Hard | |
| 0997 | Find the Town Judge | JavaScript TypeScript | Easy |
| 0998 | Maximum Binary Tree II | JavaScript TypeScript | Medium |
| 0999 | Available Captures for Rook | JavaScript | Easy |
| 1000 | Minimum Cost to Merge Stones | Hard | |
| 1001 | Grid Illumination | JavaScript | Hard |
| 1002 | Find Common Characters | JavaScript TypeScript | Easy |
| 1003 | Check If Word Is Valid After Substitutions | JavaScript | Medium |
| 1004 | Max Consecutive Ones III | JavaScript | Medium |
| 1005 | Maximize Sum Of Array After K Negations | JavaScript TypeScript | Easy |
| 1006 | Clumsy Factorial | JavaScript | Medium |
| 1007 | Minimum Domino Rotations For Equal Row | JavaScript | Medium |
| 1008 | Construct Binary Search Tree from Preorder Traversal | JavaScript TypeScript | Medium |
| 1009 | Complement of Base 10 Integer | JavaScript TypeScript | Easy |
| 1010 | Pairs of Songs With Total Durations Divisible by 60 | JavaScript | Medium |
| 1011 | Capacity To Ship Packages Within D Days | JavaScript | Medium |
| 1012 | Numbers With Repeated Digits | Hard | |
| 1013 | Partition Array Into Three Parts With Equal Sum | JavaScript | Easy |
| 1014 | Best Sightseeing Pair | JavaScript | Medium |
| 1015 | Smallest Integer Divisible by K | Medium | |
| 1016 | Binary String With Substrings Representing 1 To N | Medium | |
| 1017 | Convert to Base -2 | JavaScript | Medium |
| 1018 | Binary Prefix Divisible By 5 | JavaScript TypeScript | Easy |
| 1019 | Next Greater Node In Linked List | JavaScript TypeScript | Medium |
| 1020 | Number of Enclaves | JavaScript | Medium |
| 1021 | Remove Outermost Parentheses | JavaScript | Easy |
| 1022 | Sum of Root To Leaf Binary Numbers | JavaScript TypeScript | Easy |
| 1023 | Camelcase Matching | JavaScript | Medium |
| 1024 | Video Stitching | JavaScript | Medium |
| 1025 | Divisor Game | JavaScript | Easy |
| 1026 | Maximum Difference Between Node and Ancestor | JavaScript TypeScript | Medium |
| 1027 | Longest Arithmetic Subsequence | JavaScript | Medium |
| 1028 | Recover a Tree From Preorder Traversal | JavaScript | Hard |
| 1029 | Two City Scheduling | JavaScript TypeScript | Medium |
| 1030 | Matrix Cells in Distance Order | JavaScript | Easy |
| 1031 | Maximum Sum of Two Non-Overlapping Subarrays | JavaScript | Medium |
| 1032 | Stream of Characters | JavaScript | Hard |
| 1033 | Moving Stones Until Consecutive | JavaScript TypeScript | Easy |
| 1034 | Coloring A Border | JavaScript | Medium |
| 1035 | Uncrossed Lines | Medium | |
| 1036 | Escape a Large Maze | Hard | |
| 1037 | Valid Boomerang | JavaScript TypeScript | Easy |
| 1038 | Binary Search Tree to Greater Sum Tree | JavaScript TypeScript | Medium |
| 1039 | Minimum Score Triangulation of Polygon | Medium | |
| 1040 | Moving Stones Until Consecutive II | Medium | |
| 1041 | Robot Bounded In Circle | JavaScript | Medium |
| 1042 | Flower Planting With No Adjacent | Medium | |
| 1043 | Partition Array for Maximum Sum | JavaScript | Medium |
| 1044 | Longest Duplicate Substring | Hard | |
| 1045 | Customers Who Bought All Products | Medium | |
| 1046 | Last Stone Weight | JavaScript TypeScript | Easy |
| 1047 | Remove All Adjacent Duplicates In String | JavaScript TypeScript | Easy |
| 1048 | Longest String Chain | JavaScript | Medium |
| 1049 | Last Stone Weight II | JavaScript | Medium |
| 1050 | Actors and Directors Who Cooperated At Least Three Times | Easy | |
| 1051 | Height Checker | JavaScript | Easy |
| 1052 | Grumpy Bookstore Owner | JavaScript | Medium |
| 1053 | Previous Permutation With One Swap | JavaScript | Medium |
| 1054 | Distant Barcodes | JavaScript | Medium |
| 1055 | Shortest Way to Form String | Medium | |
| 1056 | Confusing Number | Easy | |
| 1057 | Campus Bikes | Medium | |
| 1058 | Minimize Rounding Error to Meet Target | Medium | |
| 1059 | All Paths from Source Lead to Destination | Medium | |
| 1060 | Missing Element in Sorted Array | Medium | |
| 1061 | Lexicographically Smallest Equivalent String | Medium | |
| 1062 | Longest Repeating Substring | Medium | |
| 1063 | Number of Valid Subarrays | Hard | |
| 1064 | Fixed Point | JavaScript | Easy |
| 1065 | Index Pairs of a String | JavaScript | Easy |
| 1066 | Campus Bikes II | Medium | |
| 1067 | Digit Count in Range | Hard | |
| 1068 | Product Sales Analysis I | Easy | |
| 1069 | Product Sales Analysis II | Easy | |
| 1070 | Product Sales Analysis III | Medium | |
| 1071 | Greatest Common Divisor of Strings | JavaScript | Easy |
| 1072 | Flip Columns For Maximum Number of Equal Rows | Medium | |
| 1073 | Adding Two Negabinary Numbers | Medium | |
| 1074 | Number of Submatrices That Sum to Target | Hard | |
| 1075 | Project Employees I | Easy | |
| 1076 | Project Employees II | Easy | |
| 1077 | Project Employees III | Medium | |
| 1078 | Occurrences After Bigram | JavaScript TypeScript | Easy |
| 1079 | Letter Tile Possibilities | JavaScript | Medium |
| 1080 | Insufficient Nodes in Root to Leaf Paths | JavaScript | Medium |
| 1081 | Smallest Subsequence of Distinct Characters | JavaScript TypeScript | Medium |
| 1082 | Sales Analysis I | Easy | |
| 1083 | Sales Analysis II | Easy | |
| 1084 | Sales Analysis III | Easy | |
| 1085 | Sum of Digits in the Minimum Number | JavaScript | Easy |
| 1086 | High Five | JavaScript | Easy |
| 1087 | Brace Expansion | JavaScript | Medium |
| 1088 | Confusing Number II | Hard | |
| 1089 | Duplicate Zeros | JavaScript TypeScript | Easy |
| 1090 | Largest Values From Labels | JavaScript | Medium |
| 1091 | Shortest Path in Binary Matrix | JavaScript | Medium |
| 1092 | Shortest Common Supersequence | JavaScript | Hard |
| 1093 | Statistics from a Large Sample | JavaScript | Medium |
| 1094 | Car Pooling | JavaScript | Medium |
| 1095 | Find in Mountain Array | JavaScript Python3 | Hard |
| 1096 | Brace Expansion II | JavaScript | Hard |
| 1097 | Game Play Analysis V | Hard | |
| 1098 | Unpopular Books | Medium | |
| 1099 | Two Sum Less Than K | JavaScript | Easy |
| 1100 | Find K-Length Substrings With No Repeated Characters | JavaScript | Medium |
| 1101 | The Earliest Moment When Everyone Become Friends | JavaScript | Medium |
| 1102 | Path With Maximum Minimum Value | Medium | |
| 1103 | Distribute Candies to People | JavaScript | Easy |
| 1104 | Path In Zigzag Labelled Binary Tree | JavaScript | Medium |
| 1105 | Filling Bookcase Shelves | Medium | |
| 1106 | Parsing A Boolean Expression | JavaScript | Hard |
| 1107 | New Users Daily Count | Medium | |
| 1108 | Defanging an IP Address | JavaScript TypeScript | Easy |
| 1109 | Corporate Flight Bookings | JavaScript TypeScript | Medium |
| 1110 | Delete Nodes And Return Forest | JavaScript | Medium |
| 1111 | Maximum Nesting Depth of Two Valid Parentheses Strings | Medium | |
| 1112 | Highest Grade For Each Student | Medium | |
| 1113 | Reported Posts | Easy | |
| 1114 | Print in Order | Easy | |
| 1115 | Print FooBar Alternately | Medium | |
| 1116 | Print Zero Even Odd | Medium | |
| 1117 | Building H2O | Medium | |
| 1118 | Number of Days in a Month | JavaScript | Easy |
| 1119 | Remove Vowels from a String | JavaScript | Easy |
| 1120 | Maximum Average Subtree | JavaScript | Medium |
| 1121 | Divide Array Into Increasing Sequences | Hard | |
| 1122 | Relative Sort Array | JavaScript TypeScript | Easy |
| 1123 | Lowest Common Ancestor of Deepest Leaves | JavaScript TypeScript | Medium |
| 1124 | Longest Well-Performing Interval | JavaScript TypeScript | Medium |
| 1125 | Smallest Sufficient Team | Hard | |
| 1126 | Active Businesses | Medium | |
| 1127 | User Purchase Platform | Hard | |
| 1128 | Number of Equivalent Domino Pairs | JavaScript TypeScript | Easy |
| 1129 | Shortest Path with Alternating Colors | JavaScript | Medium |
| 1130 | Minimum Cost Tree From Leaf Values | JavaScript | Medium |
| 1131 | Maximum of Absolute Value Expression | JavaScript | Medium |
| 1132 | Reported Posts II | Medium | |
| 1133 | Largest Unique Number | JavaScript | Easy |
| 1134 | Armstrong Number | JavaScript | Easy |
| 1135 | Connecting Cities With Minimum Cost | Medium | |
| 1136 | Parallel Courses | Medium | |
| 1137 | N-th Tribonacci Number | JavaScript TypeScript | Easy |
| 1138 | Alphabet Board Path | JavaScript | Medium |
| 1139 | Largest 1-Bordered Square | JavaScript | Medium |
| 1140 | Stone Game II | Medium | |
| 1141 | User Activity for the Past 30 Days I | Easy | |
| 1142 | User Activity for the Past 30 Days II | Easy | |
| 1143 | Longest Common Subsequence | JavaScript | Medium |
| 1144 | Decrease Elements To Make Array Zigzag | JavaScript | Medium |
| 1145 | Binary Tree Coloring Game | JavaScript | Medium |
| 1146 | Snapshot Array | JavaScript | Medium |
| 1147 | Longest Chunked Palindrome Decomposition | Hard | |
| 1148 | Article Views I | Easy | |
| 1149 | Article Views II | Medium | |
| 1150 | Check If a Number Is Majority Element in a Sorted Array | JavaScript | Easy |
| 1151 | Minimum Swaps to Group All 1's Together | Medium | |
| 1152 | Analyze User Website Visit Pattern | JavaScript | Medium |
| 1153 | String Transforms Into Another String | Hard | |
| 1154 | Day of the Year | JavaScript TypeScript | Easy |
| 1155 | Number of Dice Rolls With Target Sum | JavaScript | Medium |
| 1156 | Swap For Longest Repeated Character Substring | JavaScript | Medium |
| 1157 | Online Majority Element In Subarray | Hard | |
| 1158 | Market Analysis I | Medium | |
| 1159 | Market Analysis II | Hard | |
| 1160 | Find Words That Can Be Formed by Characters | JavaScript TypeScript | Easy |
| 1161 | Maximum Level Sum of a Binary Tree | JavaScript TypeScript | Medium |
| 1162 | As Far from Land as Possible | JavaScript | Medium |
| 1163 | Last Substring in Lexicographical Order | Hard | |
| 1164 | Product Price at a Given Date | Medium | |
| 1165 | Single-Row Keyboard | JavaScript | Easy |
| 1166 | Design File System | JavaScript | Medium |
| 1167 | Minimum Cost to Connect Sticks | JavaScript | Medium |
| 1168 | Optimize Water Distribution in a Village | Hard | |
| 1169 | Invalid Transactions | JavaScript | Medium |
| 1170 | Compare Strings by Frequency of the Smallest Character | JavaScript TypeScript | Medium |
| 1171 | Remove Zero Sum Consecutive Nodes from Linked List | JavaScript | Medium |
| 1172 | Dinner Plate Stacks | JavaScript | Hard |
| 1173 | Immediate Food Delivery I | Easy | |
| 1174 | Immediate Food Delivery II | Medium | |
| 1175 | Prime Arrangements | JavaScript | Easy |
| 1176 | Diet Plan Performance | JavaScript | Easy |
| 1177 | Can Make Palindrome from Substring | JavaScript | Medium |
| 1178 | Number of Valid Words for Each Puzzle | Hard | |
| 1179 | Reformat Department Table | Easy | |
| 1180 | Count Substrings with Only One Distinct Letter | JavaScript | Easy |
| 1181 | Before and After Puzzle | JavaScript | Medium |
| 1182 | Shortest Distance to Target Color | JavaScript | Medium |
| 1183 | Maximum Number of Ones | Hard | |
| 1184 | Distance Between Bus Stops | JavaScript | Easy |
| 1185 | Day of the Week | JavaScript TypeScript | Easy |
| 1186 | Maximum Subarray Sum with One Deletion | JavaScript | Medium |
| 1187 | Make Array Strictly Increasing | Hard | |
| 1188 | Design Bounded Blocking Queue | Medium | |
| 1189 | Maximum Number of Balloons | JavaScript TypeScript | Easy |
| 1190 | Reverse Substrings Between Each Pair of Parentheses | JavaScript | Medium |
| 1191 | K-Concatenation Maximum Sum | JavaScript | Medium |
| 1192 | Critical Connections in a Network | Hard | |
| 1193 | Monthly Transactions I | Medium | |
| 1194 | Tournament Winners | Hard | |
| 1195 | Fizz Buzz Multithreaded | Medium | |
| 1196 | How Many Apples Can You Put into the Basket | JavaScript | Easy |
| 1197 | Minimum Knight Moves | JavaScript | Medium |
| 1198 | Find Smallest Common Element in All Rows | JavaScript | Medium |
| 1199 | Minimum Time to Build Blocks | Hard | |
| 1200 | Minimum Absolute Difference | JavaScript TypeScript | Easy |
| 1201 | Ugly Number III | JavaScript | Medium |
| 1202 | Smallest String With Swaps | JavaScript TypeScript | Medium |
| 1203 | Sort Items by Groups Respecting Dependencies | Hard | |
| 1204 | Last Person to Fit in the Elevator | Medium | |
| 1205 | Monthly Transactions II | Medium | |
| 1206 | Design Skiplist | Hard | |
| 1207 | Unique Number of Occurrences | JavaScript TypeScript | Easy |
| 1208 | Get Equal Substrings Within Budget | JavaScript TypeScript | Medium |
| 1209 | Remove All Adjacent Duplicates in String II | JavaScript | Medium |
| 1210 | Minimum Moves to Reach Target with Rotations | JavaScript | Hard |
| 1211 | Queries Quality and Percentage | Easy | |
| 1212 | Team Scores in Football Tournament | Medium | |
| 1213 | Intersection of Three Sorted Arrays | JavaScript | Easy |
| 1214 | Two Sum BSTs | JavaScript | Medium |
| 1215 | Stepping Numbers | Medium | |
| 1216 | Valid Palindrome III | Hard | |
| 1217 | Minimum Cost to Move Chips to The Same Position | JavaScript TypeScript | Easy |
| 1218 | Longest Arithmetic Subsequence of Given Difference | JavaScript | Medium |
| 1219 | Path with Maximum Gold | JavaScript | Medium |
| 1220 | Count Vowels Permutation | JavaScript | Hard |
| 1221 | Split a String in Balanced Strings | JavaScript TypeScript | Easy |
| 1222 | Queens That Can Attack the King | JavaScript | Medium |
| 1223 | Dice Roll Simulation | Medium | |
| 1224 | Maximum Equal Frequency | Hard | |
| 1225 | Report Contiguous Dates | Hard | |
| 1226 | The Dining Philosophers | Medium | |
| 1227 | Airplane Seat Assignment Probability | JavaScript TypeScript | Medium |
| 1228 | Missing Number In Arithmetic Progression | JavaScript | Easy |
| 1229 | Meeting Scheduler | JavaScript | Medium |
| 1230 | Toss Strange Coins | JavaScript | Medium |
| 1231 | Divide Chocolate | Hard | |
| 1232 | Check If It Is a Straight Line | JavaScript TypeScript | Easy |
| 1233 | Remove Sub-Folders from the Filesystem | JavaScript | Medium |
| 1234 | Replace the Substring for Balanced String | Medium | |
| 1235 | Maximum Profit in Job Scheduling | JavaScript | Hard |
| 1236 | Web Crawler | Medium | |
| 1237 | Find Positive Integer Solution for a Given Equation | JavaScript | Medium |
| 1238 | Circular Permutation in Binary Representation | Medium | |
| 1239 | Maximum Length of a Concatenated String with Unique Characters | JavaScript | Medium |
| 1240 | Tiling a Rectangle with the Fewest Squares | Hard | |
| 1241 | Number of Comments per Post | Easy | |
| 1242 | Web Crawler Multithreaded | Medium | |
| 1243 | Array Transformation | Easy | |
| 1244 | Design A Leaderboard | JavaScript | Medium |
| 1245 | Tree Diameter | Medium | |
| 1246 | Palindrome Removal | Hard | |
| 1247 | Minimum Swaps to Make Strings Equal | JavaScript | Medium |
| 1248 | Count Number of Nice Subarrays | JavaScript | Medium |
| 1249 | Minimum Remove to Make Valid Parentheses | JavaScript | Medium |
| 1250 | Check If It Is a Good Array | Hard | |
| 1251 | Average Selling Price | Easy | |
| 1252 | Cells with Odd Values in a Matrix | JavaScript | Easy |
| 1253 | Reconstruct a 2-Row Binary Matrix | JavaScript | Medium |
| 1254 | Number of Closed Islands | JavaScript | Medium |
| 1255 | Maximum Score Words Formed by Letters | JavaScript | Hard |
| 1256 | Encode Number | JavaScript | Medium |
| 1257 | Smallest Common Region | JavaScript | Medium |
| 1258 | Synonymous Sentences | Python3 | Medium |
| 1259 | Handshakes That Don't Cross | Hard | |
| 1260 | Shift 2D Grid | JavaScript | Easy |
| 1261 | Find Elements in a Contaminated Binary Tree | Python3 | Medium |
| 1262 | Greatest Sum Divisible by Three | JavaScript TypeScript | Medium |
| 1263 | Minimum Moves to Move a Box to Their Target Location | Hard | |
| 1264 | Page Recommendations | Medium | |
| 1265 | Print Immutable Linked List in Reverse | Medium | |
| 1266 | Minimum Time Visiting All Points | JavaScript TypeScript | Easy |
| 1267 | Count Servers that Communicate | JavaScript | Medium |
| 1268 | Search Suggestions System | Python3 | Medium |
| 1269 | Number of Ways to Stay in the Same Place After Some Steps | JavaScript | Hard |
| 1270 | All People Report to the Given Manager | Medium | |
| 1271 | Hexspeak | Python3 | Easy |
| 1272 | Remove Interval | Python3 | Medium |
| 1273 | Delete Tree Nodes | JavaScript | Medium |
| 1274 | Number of Ships in a Rectangle | Hard | |
| 1275 | Find Winner on a Tic Tac Toe Game | JavaScript | Easy |
| 1276 | Number of Burgers with No Waste of Ingredients | JavaScript TypeScript | Medium |
| 1277 | Count Square Submatrices with All Ones | JavaScript | Medium |
| 1278 | Palindrome Partitioning III | Hard | |
| 1279 | Traffic Light Controlled Intersection | Easy | |
| 1280 | Students and Examinations | Easy | |
| 1281 | Subtract the Product and Sum of Digits of an Integer | JavaScript TypeScript | Easy |
| 1282 | Group the People Given the Group Size They Belong To | JavaScript | Medium |
| 1283 | Find the Smallest Divisor Given a Threshold | JavaScript | Medium |
| 1284 | Minimum Number of Flips to Convert Binary Matrix to Zero Matrix | Hard | |
| 1285 | Find the Start and End Number of Continuous Ranges | Medium | |
| 1286 | Iterator for Combination | Python3 | Medium |
| 1287 | Element Appearing More Than 25% In Sorted Array | JavaScript | Easy |
| 1288 | Remove Covered Intervals | JavaScript | Medium |
| 1289 | Minimum Falling Path Sum II | JavaScript | Hard |
| 1290 | Convert Binary Number in a Linked List to Integer | JavaScript TypeScript | Easy |
| 1291 | Sequential Digits | JavaScript | Medium |
| 1292 | Maximum Side Length of a Square with Sum Less than or Equal to Threshold | Medium | |
| 1293 | Shortest Path in a Grid with Obstacles Elimination | Hard | |
| 1294 | Weather Type in Each Country | Easy | |
| 1295 | Find Numbers with Even Number of Digits | JavaScript TypeScript | Easy |
| 1296 | Divide Array in Sets of K Consecutive Numbers | JavaScript TypeScript | Medium |
| 1297 | Maximum Number of Occurrences of a Substring | Medium | |
| 1298 | Maximum Candies You Can Get from Boxes | Hard | |
| 1299 | Replace Elements with Greatest Element on Right Side | JavaScript TypeScript | Easy |
| 1300 | Sum of Mutated Array Closest to Target | JavaScript | Medium |
| 1301 | Number of Paths with Max Score | Python3 | Hard |
| 1302 | Deepest Leaves Sum | JavaScript TypeScript | Medium |
| 1303 | Find the Team Size | Easy | |
| 1304 | Find N Unique Integers Sum up to Zero | JavaScript TypeScript | Easy |
| 1305 | All Elements in Two Binary Search Trees | Python3 TypeScript | Medium |
| 1306 | Jump Game III | JavaScript | Medium |
| 1307 | Verbal Arithmetic Puzzle | Hard | |
| 1308 | Running Total for Different Genders | Medium | |
| 1309 | Decrypt String from Alphabet to Integer Mapping | JavaScript TypeScript | Easy |
| 1310 | XOR Queries of a Subarray | JavaScript TypeScript | Medium |
| 1311 | Get Watched Videos by Your Friends | JavaScript | Medium |
| 1312 | Minimum Insertion Steps to Make a String Palindrome | JavaScript | Hard |
| 1313 | Decompress Run-Length Encoded List | JavaScript TypeScript | Easy |
| 1314 | Matrix Block Sum | JavaScript | Medium |
| 1315 | Sum of Nodes with Even-Valued Grandparent | JavaScript | Medium |
| 1316 | Distinct Echo Substrings | Hard | |
| 1317 | Convert Integer to the Sum of Two No-Zero Integers | JavaScript TypeScript | Easy |
| 1318 | Minimum Flips to Make a OR b Equal to c | JavaScript | Medium |
| 1319 | Number of Operations to Make Network Connected | Medium | |
| 1320 | Minimum Distance to Type a Word Using Two Fingers | Hard | |
| 1321 | Restaurant Growth | Medium | |
| 1322 | Ads Performance | Easy | |
| 1323 | Maximum 69 Number | JavaScript TypeScript | Easy |
| 1324 | Print Words Vertically | JavaScript | Medium |
| 1325 | Delete Leaves With a Given Value | JavaScript TypeScript | Medium |
| 1326 | Minimum Number of Taps to Open to Water a Garden | JavaScript | Hard |
| 1327 | List the Products Ordered in a Period | Easy | |
| 1328 | Break a Palindrome | JavaScript | Medium |
| 1329 | Sort the Matrix Diagonally | JavaScript | Medium |
| 1330 | Reverse Subarray To Maximize Array Value | Hard | |
| 1331 | Rank Transform of an Array | JavaScript TypeScript | Easy |
| 1332 | Remove Palindromic Subsequences | JavaScript TypeScript | Easy |
| 1333 | Filter Restaurants by Vegan-Friendly, Price and Distance | JavaScript | Medium |
| 1334 | Find the City With the Smallest Number of Neighbors at a Threshold Distance | JavaScript | Medium |
| 1335 | Minimum Difficulty of a Job Schedule | JavaScript | Hard |
| 1336 | Number of Transactions per Visit | Hard | |
| 1337 | The K Weakest Rows in a Matrix | JavaScript TypeScript | Easy |
| 1338 | Reduce Array Size to The Half | JavaScript TypeScript | Medium |
| 1339 | Maximum Product of Splitted Binary Tree | JavaScript | Medium |
| 1340 | Jump Game V | JavaScript | Hard |
| 1341 | Movie Rating | Medium | |
| 1342 | Number of Steps to Reduce a Number to Zero | JavaScript TypeScript | Easy |
| 1343 | Number of Sub-arrays of Size K and Average Greater than or Equal to Threshold | JavaScript | Medium |
| 1344 | Angle Between Hands of a Clock | JavaScript TypeScript | Medium |
| 1345 | Jump Game IV | JavaScript | Hard |
| 1346 | Check If N and Its Double Exist | JavaScript TypeScript | Easy |
| 1347 | Minimum Number of Steps to Make Two Strings Anagram | JavaScript TypeScript | Medium |
| 1348 | Tweet Counts Per Frequency | JavaScript | Medium |
| 1349 | Maximum Students Taking Exam | Hard | |
| 1350 | Students With Invalid Departments | Easy | |
| 1351 | Count Negative Numbers in a Sorted Matrix | JavaScript TypeScript | Easy |
| 1352 | Product of the Last K Numbers | JavaScript | Medium |
| 1353 | Maximum Number of Events That Can Be Attended | Medium | |
| 1354 | Construct Target Array With Multiple Sums | Hard | |
| 1355 | Activity Participants | Medium | |
| 1356 | Sort Integers by The Number of 1 Bits | JavaScript TypeScript | Easy |
| 1357 | Apply Discount Every n Orders | JavaScript TypeScript | Medium |
| 1358 | Number of Substrings Containing All Three Characters | JavaScript | Medium |
| 1359 | Count All Valid Pickup and Delivery Options | JavaScript | Hard |
| 1360 | Number of Days Between Two Dates | JavaScript TypeScript | Easy |
| 1361 | Validate Binary Tree Nodes | JavaScript | Medium |
| 1362 | Closest Divisors | JavaScript TypeScript | Medium |
| 1363 | Largest Multiple of Three | JavaScript TypeScript | Hard |
| 1364 | Number of Trusted Contacts of a Customer | Medium | |
| 1365 | How Many Numbers Are Smaller Than the Current Number | JavaScript TypeScript | Easy |
| 1366 | Rank Teams by Votes | JavaScript | Medium |
| 1367 | Linked List in Binary Tree | JavaScript | Medium |
| 1368 | Minimum Cost to Make at Least One Valid Path in a Grid | Hard | |
| 1369 | Get the Second Most Recent Activity | Hard | |
| 1370 | Increasing Decreasing String | JavaScript | Easy |
| 1371 | Find the Longest Substring Containing Vowels in Even Counts | JavaScript | Medium |
| 1372 | Longest ZigZag Path in a Binary Tree | JavaScript | Medium |
| 1373 | Maximum Sum BST in Binary Tree | JavaScript | Hard |
| 1374 | Generate a String With Characters That Have Odd Counts | JavaScript TypeScript | Easy |
| 1375 | Bulb Switcher III | JavaScript | Medium |
| 1376 | Time Needed to Inform All Employees | JavaScript | Medium |
| 1377 | Frog Position After T Seconds | JavaScript | Hard |
| 1378 | Replace Employee ID With The Unique Identifier | Easy | |
| 1379 | Find a Corresponding Node of a Binary Tree in a Clone of That Tree | JavaScript TypeScript | Medium |
| 1380 | Lucky Numbers in a Matrix | JavaScript TypeScript | Easy |
| 1381 | Design a Stack With Increment Operation | JavaScript | Medium |
| 1382 | Balance a Binary Search Tree | JavaScript TypeScript | Medium |
| 1383 | Maximum Performance of a Team | Hard | |
| 1384 | Total Sales Amount by Year | Hard | |
| 1385 | Find the Distance Value Between Two Arrays | JavaScript | Easy |
| 1386 | Cinema Seat Allocation | JavaScript | Medium |
| 1387 | Sort Integers by The Power Value | JavaScript | Medium |
| 1388 | Pizza With 3n Slices | Hard | |
| 1389 | Create Target Array in the Given Order | JavaScript TypeScript | Easy |
| 1390 | Four Divisors | JavaScript | Medium |
| 1391 | Check if There is a Valid Path in a Grid | JavaScript | Medium |
| 1392 | Longest Happy Prefix | Hard | |
| 1393 | Capital Gain/Loss | Medium | |
| 1394 | Find Lucky Integer in an Array | JavaScript TypeScript | Easy |
| 1395 | Count Number of Teams | JavaScript | Medium |
| 1396 | Design Underground System | JavaScript | Medium |
| 1397 | Find All Good Strings | Hard | |
| 1398 | Customers Who Bought Products A and B but Not C | Medium | |
| 1399 | Count Largest Group | JavaScript TypeScript | Easy |
| 1400 | Construct K Palindrome Strings | JavaScript | Medium |
| 1401 | Circle and Rectangle Overlapping | JavaScript | Medium |
| 1402 | Reducing Dishes | JavaScript | Hard |
| 1403 | Minimum Subsequence in Non-Increasing Order | JavaScript | Easy |
| 1404 | Number of Steps to Reduce a Number in Binary Representation to One | JavaScript | Medium |
| 1405 | Longest Happy String | Medium | |
| 1406 | Stone Game III | JavaScript | Hard |
| 1407 | Top Travellers | Easy | |
| 1408 | String Matching in an Array | JavaScript TypeScript | Easy |
| 1409 | Queries on a Permutation With Key | JavaScript | Medium |
| 1410 | HTML Entity Parser | JavaScript | Medium |
| 1411 | Number of Ways to Paint N × 3 Grid | Hard | |
| 1412 | Find the Quiet Students in All Exams | Hard | |
| 1413 | Minimum Value to Get Positive Step by Step Sum | JavaScript TypeScript | Easy |
| 1414 | Find the Minimum Number of Fibonacci Numbers Whose Sum Is K | JavaScript | Medium |
| 1415 | The k-th Lexicographical String of All Happy Strings of Length n | JavaScript | Medium |
| 1416 | Restore The Array | JavaScript | Hard |
| 1417 | Reformat The String | JavaScript | Easy |
| 1418 | Display Table of Food Orders in a Restaurant | JavaScript | Medium |
| 1419 | Minimum Number of Frogs Croaking | JavaScript | Medium |
| 1420 | Build Array Where You Can Find The Maximum Exactly K Comparisons | Hard | |
| 1421 | NPV Queries | Medium | |
| 1422 | Maximum Score After Splitting a String | JavaScript | Easy |
| 1423 | Maximum Points You Can Obtain from Cards | JavaScript | Medium |
| 1424 | Diagonal Traverse II | JavaScript | Medium |
| 1425 | Constrained Subsequence Sum | JavaScript | Hard |
| 1426 | Counting Elements | JavaScript | Easy |
| 1427 | Perform String Shifts | JavaScript | Easy |
| 1428 | Leftmost Column with at Least a One | JavaScript | Medium |
| 1429 | First Unique Number | JavaScript | Medium |
| 1430 | Check If a String Is a Valid Sequence from Root to Leaves Path in a Binary Tree | JavaScript | Medium |
| 1431 | Kids With the Greatest Number of Candies | JavaScript TypeScript | Easy |
| 1432 | Max Difference You Can Get From Changing an Integer | JavaScript | Medium |
| 1433 | Check If a String Can Break Another String | JavaScript | Medium |
| 1434 | Number of Ways to Wear Different Hats to Each Other | Hard | |
| 1435 | Create a Session Bar Chart | Easy | |
| 1436 | Destination City | JavaScript | Easy |
| 1437 | Check If All 1's Are at Least Length K Places Away | JavaScript TypeScript | Easy |
| 1438 | Longest Continuous Subarray With Absolute Diff Less Than or Equal to Limit | JavaScript | Medium |
| 1439 | Find the Kth Smallest Sum of a Matrix With Sorted Rows | Hard | |
| 1440 | Evaluate Boolean Expression | Medium | |
| 1441 | Build an Array With Stack Operations | JavaScript TypeScript | Easy |
| 1442 | Count Triplets That Can Form Two Arrays of Equal XOR | JavaScript | Medium |
| 1443 | Minimum Time to Collect All Apples in a Tree | JavaScript | Medium |
| 1444 | Number of Ways of Cutting a Pizza | Hard | |
| 1445 | Apples & Oranges | Medium | |
| 1446 | Consecutive Characters | JavaScript TypeScript | Easy |
| 1447 | Simplified Fractions | JavaScript | Medium |
| 1448 | Count Good Nodes in Binary Tree | JavaScript TypeScript | Medium |
| 1449 | Form Largest Integer With Digits That Add up to Target | Hard | |
| 1450 | Number of Students Doing Homework at a Given Time | JavaScript TypeScript | Easy |
| 1451 | Rearrange Words in a Sentence | JavaScript | Medium |
| 1452 | People Whose List of Favorite Companies Is Not a Subset of Another List | JavaScript | Medium |
| 1453 | Maximum Number of Darts Inside of a Circular Dartboard | Hard | |
| 1454 | Active Users | Medium | |
| 1455 | Check If a Word Occurs As a Prefix of Any Word in a Sentence | JavaScript TypeScript | Easy |
| 1456 | Maximum Number of Vowels in a Substring of Given Length | JavaScript | Medium |
| 1457 | Pseudo-Palindromic Paths in a Binary Tree | JavaScript Python3 TypeScript | Medium |
| 1458 | Max Dot Product of Two Subsequences | JavaScript | Hard |
| 1459 | Rectangles Area | Medium | |
| 1460 | Make Two Arrays Equal by Reversing Sub-arrays | JavaScript | Easy |
| 1461 | Check If a String Contains All Binary Codes of Size K | JavaScript | Medium |
| 1462 | Course Schedule IV | Medium | |
| 1463 | Cherry Pickup II | Hard | |
| 1464 | Maximum Product of Two Elements in an Array | JavaScript TypeScript | Easy |
| 1465 | Maximum Area of a Piece of Cake After Horizontal and Vertical Cuts | JavaScript | Medium |
| 1466 | Reorder Routes to Make All Paths Lead to the City Zero | JavaScript | Medium |
| 1467 | Probability of a Two Boxes Having The Same Number of Distinct Balls | Hard | |
| 1468 | Calculate Salaries | Medium | |
| 1469 | Find All The Lonely Nodes | Easy | |
| 1470 | Shuffle the Array | JavaScript TypeScript | Easy |
| 1471 | The k Strongest Values in an Array | JavaScript | Medium |
| 1472 | Design Browser History | JavaScript | Medium |
| 1473 | Paint House III | Hard | |
| 1474 | Delete N Nodes After M Nodes of a Linked List | Easy | |
| 1475 | Final Prices With a Special Discount in a Shop | JavaScript TypeScript | Easy |
| 1476 | Subrectangle Queries | JavaScript | Medium |
| 1477 | Find Two Non-overlapping Sub-arrays Each With Target Sum | JavaScript | Medium |
| 1478 | Allocate Mailboxes | Hard | |
| 1479 | Sales by Day of the Week | Hard | |
| 1480 | Running Sum of 1d Array | JavaScript TypeScript | Easy |
| 1481 | Least Number of Unique Integers after K Removals | JavaScript | Medium |
| 1482 | Minimum Number of Days to Make m Bouquets | Medium | |
| 1483 | Kth Ancestor of a Tree Node | Hard | |
| 1484 | Clone Binary Tree With Random Pointer | Medium | |
| 1485 | Group Sold Products By The Date | Easy | |
| 1486 | XOR Operation in an Array | JavaScript TypeScript | Easy |
| 1487 | Making File Names Unique | JavaScript | Medium |
| 1488 | Avoid Flood in The City | Medium | |
| 1489 | Find Critical and Pseudo-Critical Edges in Minimum Spanning Tree | Hard | |
| 1490 | Clone N-ary Tree | Medium | |
| 1491 | Average Salary Excluding the Minimum and Maximum Salary | JavaScript TypeScript | Easy |
| 1492 | The kth Factor of n | JavaScript | Medium |
| 1493 | Longest Subarray of 1's After Deleting One Element | JavaScript | Medium |
| 1494 | Parallel Courses II | Hard | |
| 1495 | Friendly Movies Streamed Last Month | Easy | |
| 1496 | Path Crossing | JavaScript TypeScript | Easy |
| 1497 | Check If Array Pairs Are Divisible by k | JavaScript | Medium |
| 1498 | Number of Subsequences That Satisfy the Given Sum Condition | JavaScript | Medium |
| 1499 | Max Value of Equation | Hard | |
| 1500 | Design a File Sharing System | Medium | |
| 1501 | Countries You Can Safely Invest In | Medium | |
| 1502 | Can Make Arithmetic Progression From Sequence | JavaScript TypeScript | Easy |
| 1503 | Last Moment Before All Ants Fall Out of a Plank | Medium | |
| 1504 | Count Submatrices With All Ones | Medium | |
| 1505 | Minimum Possible Integer After at Most K Adjacent Swaps On Digits | Hard | |
| 1506 | Find Root of N-Ary Tree | Medium | |
| 1507 | Reformat Date | JavaScript TypeScript | Easy |
| 1508 | Range Sum of Sorted Subarray Sums | JavaScript | Medium |
| 1509 | Minimum Difference Between Largest and Smallest Value in Three Moves | JavaScript | Medium |
| 1510 | Stone Game IV | JavaScript | Hard |
| 1511 | Customer Order Frequency | Easy | |
| 1512 | Number of Good Pairs | JavaScript TypeScript | Easy |
| 1513 | Number of Substrings With Only 1s | JavaScript TypeScript | Medium |
| 1514 | Path with Maximum Probability | JavaScript | Medium |
| 1515 | Best Position for a Service Centre | Hard | |
| 1516 | Move Sub-Tree of N-Ary Tree | Hard | |
| 1517 | Find Users With Valid E-Mails | Easy | |
| 1518 | Water Bottles | JavaScript TypeScript | Easy |
| 1519 | Number of Nodes in the Sub-Tree With the Same Label | JavaScript | Medium |
| 1520 | Maximum Number of Non-Overlapping Substrings | Hard | |
| 1521 | Find a Value of a Mysterious Function Closest to Target | Hard | |
| 1522 | Diameter of N-Ary Tree | Medium | |
| 1523 | Count Odd Numbers in an Interval Range | JavaScript TypeScript | Easy |
| 1524 | Number of Sub-arrays With Odd Sum | JavaScript TypeScript | Medium |
| 1525 | Number of Good Ways to Split a String | JavaScript | Medium |
| 1526 | Minimum Number of Increments on Subarrays to Form a Target Array | JavaScript | Hard |
| 1527 | Patients With a Condition | Easy | |
| 1528 | Shuffle String | JavaScript TypeScript | Easy |
| 1529 | Bulb Switcher IV | JavaScript | Medium |
| 1530 | Number of Good Leaf Nodes Pairs | JavaScript | Medium |
| 1531 | String Compression II | Hard | |
| 1532 | The Most Recent Three Orders | Medium | |
| 1533 | Find the Index of the Large Integer | Medium | |
| 1534 | Count Good Triplets | JavaScript | Easy |
| 1535 | Find the Winner of an Array Game | JavaScript | Medium |
| 1536 | Minimum Swaps to Arrange a Binary Grid | Medium | |
| 1537 | Get the Maximum Score | JavaScript | Hard |
| 1538 | Guess the Majority in a Hidden Array | Medium | |
| 1539 | Kth Missing Positive Number | JavaScript | Easy |
| 1540 | Can Convert String in K Moves | JavaScript | Medium |
| 1541 | Minimum Insertions to Balance a Parentheses String | JavaScript | Medium |
| 1542 | Find Longest Awesome Substring | JavaScript | Hard |
| 1543 | Fix Product Name Format | Easy | |
| 1544 | Make The String Great | JavaScript | Easy |
| 1545 | Find Kth Bit in Nth Binary String | JavaScript | Medium |
| 1546 | Maximum Number of Non-Overlapping Subarrays With Sum Equals Target | Medium | |
| 1547 | Minimum Cost to Cut a Stick | Hard | |
| 1548 | The Most Similar Path in a Graph | Hard | |
| 1549 | The Most Recent Orders for Each Product | Medium | |
| 1550 | Three Consecutive Odds | JavaScript TypeScript | Easy |
| 1551 | Minimum Operations to Make Array Equal | JavaScript | Medium |
| 1552 | Magnetic Force Between Two Balls | Medium | |
| 1553 | Minimum Number of Days to Eat N Oranges | JavaScript | Hard |
| 1554 | Strings Differ by One Character | Medium | |
| 1555 | Bank Account Summary | Medium | |
| 1556 | Thousand Separator | JavaScript | Easy |
| 1557 | Minimum Number of Vertices to Reach All Nodes | JavaScript | Medium |
| 1558 | Minimum Numbers of Function Calls to Make Target Array | Medium | |
| 1559 | Detect Cycles in 2D Grid | Hard | |
| 1560 | Most Visited Sector in a Circular Track | JavaScript | Easy |
| 1561 | Maximum Number of Coins You Can Get | JavaScript TypeScript | Medium |
| 1562 | Find Latest Group of Size M | Medium | |
| 1563 | Stone Game V | Hard | |
| 1564 | Put Boxes Into the Warehouse I | Medium | |
| 1565 | Unique Orders and Customers Per Month | Easy | |
| 1566 | Detect Pattern of Length M Repeated K or More Times | JavaScript TypeScript | Easy |
| 1567 | Maximum Length of Subarray With Positive Product | JavaScript TypeScript | Medium |
| 1568 | Minimum Number of Days to Disconnect Island | Hard | |
| 1569 | Number of Ways to Reorder Array to Get Same BST | Hard | |
| 1570 | Dot Product of Two Sparse Vectors | Medium | |
| 1571 | Warehouse Manager | Easy | |
| 1572 | Matrix Diagonal Sum | JavaScript TypeScript | Easy |
| 1573 | Number of Ways to Split a String | Medium | |
| 1574 | Shortest Subarray to be Removed to Make Array Sorted | Medium | |
| 1575 | Count All Possible Routes | Hard | |
| 1576 | Replace All ?'s to Avoid Consecutive Repeating Characters | JavaScript | Easy |
| 1577 | Number of Ways Where Square of Number Is Equal to Product of Two Numbers | JavaScript | Medium |
| 1578 | Minimum Deletion Cost to Avoid Repeating Letters | JavaScript | Medium |
| 1579 | Remove Max Number of Edges to Keep Graph Fully Traversable | Hard | |
| 1580 | Put Boxes Into the Warehouse II | Medium | |
| 1581 | Customer Who Visited but Did Not Make Any Transactions | Easy | |
| 1582 | Special Positions in a Binary Matrix | JavaScript TypeScript | Easy |
| 1583 | Count Unhappy Friends | Medium | |
| 1584 | Min Cost to Connect All Points | Medium | |
| 1585 | Check If String Is Transformable With Substring Sort Operations | Hard | |
| 1586 | Binary Search Tree Iterator II | Medium | |
| 1587 | Bank Account Summary II | Easy | |
| 1588 | Sum of All Odd Length Subarrays | JavaScript TypeScript | Easy |
| 1589 | Maximum Sum Obtained of Any Permutation | JavaScript TypeScript | Medium |
| 1590 | Make Sum Divisible by P | Medium | |
| 1591 | Strange Printer II | Hard | |
| 1592 | Rearrange Spaces Between Words | JavaScript TypeScript | Easy |
| 1593 | Split a String Into the Max Number of Unique Substrings | JavaScript TypeScript | Medium |
| 1594 | Maximum Non Negative Product in a Matrix | Medium | |
| 1595 | Minimum Cost to Connect Two Groups of Points | Hard | |
| 1596 | The Most Frequently Ordered Products for Each Customer | Medium | |
| 1597 | Build Binary Expression Tree From Infix Expression | Hard | |
| 1598 | Crawler Log Folder | JavaScript TypeScript | Easy |
| 1599 | Maximum Profit of Operating a Centennial Wheel | Medium | |
| 1600 | Throne Inheritance | Medium | |
| 1601 | Maximum Number of Achievable Transfer Requests | Hard | |
| 1602 | Find Nearest Right Node in Binary Tree | Medium | |
| 1603 | Design Parking System | JavaScript TypeScript | Easy |
| 1604 | Alert Using Same Key-Card Three or More Times in a One Hour Period | JavaScript TypeScript | Medium |
| 1605 | Find Valid Matrix Given Row and Column Sums | Medium | |
| 1606 | Find Servers That Handled Most Number of Requests | Hard | |
| 1607 | Sellers With No Sales | Easy | |
| 1608 | Special Array With X Elements Greater Than or Equal X | JavaScript TypeScript | Easy |
| 1609 | Even Odd Tree | JavaScript TypeScript | Medium |
| 1610 | Maximum Number of Visible Points | Hard | |
| 1611 | Minimum One Bit Operations to Make Integers Zero | Hard | |
| 1612 | Check If Two Expression Trees are Equivalent | Medium | |
| 1613 | Find the Missing IDs | Medium | |
| 1614 | Maximum Nesting Depth of the Parentheses | JavaScript TypeScript | Easy |
| 1615 | Maximal Network Rank | Medium | |
| 1616 | Split Two Strings to Make Palindrome | JavaScript | Medium |
| 1617 | Count Subtrees With Max Distance Between Cities | Hard | |
| 1618 | Maximum Font to Fit a Sentence in a Screen | Medium | |
| 1619 | Mean of Array After Removing Some Elements | JavaScript TypeScript | Easy |
| 1620 | Coordinate With Maximum Network Quality | Medium | |
| 1621 | Number of Sets of K Non-Overlapping Line Segments | Medium | |
| 1622 | Fancy Sequence | Hard | |
| 1623 | All Valid Triplets That Can Represent a Country | Easy | |
| 1624 | Largest Substring Between Two Equal Characters | JavaScript | Easy |
| 1625 | Lexicographically Smallest String After Applying Operations | Medium | |
| 1626 | Best Team With No Conflicts | Medium | |
| 1627 | Graph Connectivity With Threshold | Hard | |
| 1628 | Design an Expression Tree With Evaluate Function | Medium | |
| 1629 | Slowest Key | JavaScript TypeScript | Easy |
| 1630 | Arithmetic Subarrays | JavaScript | Medium |
| 1631 | Path With Minimum Effort | Medium | |
| 1632 | Rank Transform of a Matrix | Hard | |
| 1633 | Percentage of Users Attended a Contest | Easy | |
| 1634 | Add Two Polynomials Represented as Linked Lists | Medium | |
| 1635 | Hopper Company Queries I | Hard | |
| 1636 | Sort Array by Increasing Frequency | JavaScript TypeScript | Easy |
| 1637 | Widest Vertical Area Between Two Points Containing No Points | JavaScript | Medium |
| 1638 | Count Substrings That Differ by One Character | Medium | |
| 1639 | Number of Ways to Form a Target String Given a Dictionary | Hard | |
| 1640 | Check Array Formation Through Concatenation | JavaScript TypeScript | Easy |
| 1641 | Count Sorted Vowel Strings | JavaScript TypeScript | Medium |
| 1642 | Furthest Building You Can Reach | Medium | |
| 1643 | Kth Smallest Instructions | Hard | |
| 1644 | Lowest Common Ancestor of a Binary Tree II | Medium | |
| 1645 | Hopper Company Queries II | Hard | |
| 1646 | Get Maximum in Generated Array | JavaScript TypeScript | Easy |
| 1647 | Minimum Deletions to Make Character Frequencies Unique | JavaScript TypeScript | Medium |
| 1648 | Sell Diminishing-Valued Colored Balls | Medium | |
| 1649 | Create Sorted Array through Instructions | Hard | |
| 1650 | Lowest Common Ancestor of a Binary Tree III | Medium | |
| 1651 | Hopper Company Queries III | Hard | |
| 1652 | Defuse the Bomb | JavaScript TypeScript | Easy |
| 1653 | Minimum Deletions to Make String Balanced | JavaScript | Medium |
| 1654 | Minimum Jumps to Reach Home | Medium | |
| 1655 | Distribute Repeating Integers | Hard | |
| 1656 | Design an Ordered Stream | JavaScript TypeScript | Easy |
| 1657 | Determine if Two Strings Are Close | JavaScript TypeScript | Medium |
| 1658 | Minimum Operations to Reduce X to Zero | Medium | |
| 1659 | Maximize Grid Happiness | Hard | |
| 1660 | Correct a Binary Tree | Medium | |
| 1661 | Average Time of Process per Machine | Easy | |
| 1662 | Check If Two String Arrays are Equivalent | JavaScript TypeScript | Easy |
| 1663 | Smallest String With A Given Numeric Value | JavaScript TypeScript | Medium |
| 1664 | Ways to Make a Fair Array | JavaScript | Medium |
| 1665 | Minimum Initial Energy to Finish Tasks | Hard | |
| 1666 | Change the Root of a Binary Tree | Medium | |
| 1667 | Fix Names in a Table | Easy | |
| 1668 | Maximum Repeating Substring | JavaScript TypeScript | Easy |
| 1669 | Merge In Between Linked Lists | JavaScript TypeScript | Medium |
| 1670 | Design Front Middle Back Queue | JavaScript TypeScript | Medium |
| 1671 | Minimum Number of Removals to Make Mountain Array | Hard | |
| 1672 | Richest Customer Wealth | JavaScript TypeScript | Easy |
| 1673 | Find the Most Competitive Subsequence | JavaScript TypeScript | Medium |
| 1674 | Minimum Moves to Make Array Complementary | Medium | |
| 1675 | Minimize Deviation in Array | Hard | |
| 1676 | Lowest Common Ancestor of a Binary Tree IV | Medium | |
| 1677 | Product's Worth Over Invoices | Easy | |
| 1678 | Goal Parser Interpretation | JavaScript TypeScript | Easy |
| 1679 | Max Number of K-Sum Pairs | JavaScript TypeScript | Medium |
| 1680 | Concatenation of Consecutive Binary Numbers | JavaScript TypeScript | Medium |
| 1681 | Minimum Incompatibility | Hard | |
| 1682 | Longest Palindromic Subsequence II | Medium | |
| 1683 | Invalid Tweets | Easy | |
| 1684 | Count the Number of Consistent Strings | JavaScript TypeScript | Easy |
| 1685 | Sum of Absolute Differences in a Sorted Array | JavaScript TypeScript | Medium |
| 1686 | Stone Game VI | Medium | |
| 1687 | Delivering Boxes from Storage to Ports | Hard | |
| 1688 | Count of Matches in Tournament | JavaScript TypeScript | Easy |
| 1689 | Partitioning Into Minimum Number Of Deci-Binary Numbers | JavaScript TypeScript | Medium |
| 1690 | Stone Game VII | Medium | |
| 1691 | Maximum Height by Stacking Cuboids | Hard | |
| 1692 | Count Ways to Distribute Candies | Hard | |
| 1693 | Daily Leads and Partners | Easy | |
| 1694 | Reformat Phone Number | JavaScript TypeScript | Easy |
| 1695 | Maximum Erasure Value | JavaScript | Medium |
| 1696 | Jump Game VI | JavaScript | Medium |
| 1697 | Checking Existence of Edge Length Limited Paths | Hard | |
| 1698 | Number of Distinct Substrings in a String | Medium | |
| 1699 | Number of Calls Between Two Persons | Medium | |
| 1700 | Number of Students Unable to Eat Lunch | JavaScript TypeScript | Easy |
| 1701 | Average Waiting Time | JavaScript TypeScript | Medium |
| 1702 | Maximum Binary String After Change | JavaScript TypeScript | Medium |
| 1703 | Minimum Adjacent Swaps for K Consecutive Ones | Hard | |
| 1704 | Determine if String Halves Are Alike | JavaScript TypeScript | Easy |
| 1705 | Maximum Number of Eaten Apples | JavaScript TypeScript | Medium |
| 1706 | Where Will the Ball Fall | Medium | |
| 1707 | Maximum XOR With an Element From Array | Hard | |
| 1708 | Largest Subarray Length K | Easy | |
| 1709 | Biggest Window Between Visits | Medium | |
| 1710 | Maximum Units on a Truck | JavaScript TypeScript | Easy |
| 1711 | Count Good Meals | JavaScript TypeScript | Medium |
| 1712 | Ways to Split Array Into Three Subarrays | JavaScript TypeScript | Medium |
| 1713 | Minimum Operations to Make a Subsequence | Hard | |
| 1714 | Sum Of Special Evenly-Spaced Elements In Array | Hard | |
| 1715 | Count Apples and Oranges | Medium | |
| 1716 | Calculate Money in Leetcode Bank | JavaScript TypeScript | Easy |
| 1717 | Maximum Score From Removing Substrings | Medium | |
| 1718 | Construct the Lexicographically Largest Valid Sequence | Medium | |
| 1719 | Number Of Ways To Reconstruct A Tree | Hard | |
| 1720 | Decode XORed Array | JavaScript TypeScript | Easy |
| 1721 | Swapping Nodes in a Linked List | JavaScript TypeScript | Medium |
| 1722 | Minimize Hamming Distance After Swap Operations | JavaScript TypeScript | Medium |
| 1723 | Find Minimum Time to Finish All Jobs | Hard | |
| 1724 | Checking Existence of Edge Length Limited Paths II | Hard | |
| 1725 | Number Of Rectangles That Can Form The Largest Square | JavaScript TypeScript | Easy |
| 1726 | Tuple with Same Product | JavaScript TypeScript | Medium |
| 1727 | Largest Submatrix With Rearrangements | Medium | |
| 1728 | Cat and Mouse II | Hard | |
| 1729 | Find Followers Count | Easy | |
| 1730 | Shortest Path to Get Food | Medium | |
| 1731 | The Number of Employees Which Report to Each Employee | Easy | |
| 1732 | Find the Highest Altitude | JavaScript TypeScript | Easy |
| 1733 | Minimum Number of People to Teach | JavaScript TypeScript | Medium |
| 1734 | Decode XORed Permutation | JavaScript TypeScript | Medium |
| 1735 | Count Ways to Make Array With Product | Hard | |
| 1736 | Latest Time by Replacing Hidden Digits | JavaScript TypeScript | Easy |
| 1737 | Change Minimum Characters to Satisfy One of Three Conditions | JavaScript TypeScript | Medium |
| 1738 | Find Kth Largest XOR Coordinate Value | JavaScript TypeScript | Medium |
| 1739 | Building Boxes | Hard | |
| 1740 | Find Distance in a Binary Tree | Medium | |
| 1741 | Find Total Time Spent by Each Employee | Easy | |
| 1742 | Maximum Number of Balls in a Box | JavaScript TypeScript | Easy |
| 1743 | Restore the Array From Adjacent Pairs | JavaScript TypeScript | Medium |
| 1744 | Can You Eat Your Favorite Candy on Your Favorite Day? | JavaScript TypeScript | Medium |
| 1745 | Palindrome Partitioning IV | JavaScript TypeScript | Hard |
| 1746 | Maximum Subarray Sum After One Operation | Medium | |
| 1747 | Leetflex Banned Accounts | Medium | |
| 1748 | Sum of Unique Elements | JavaScript TypeScript | Easy |
| 1749 | Maximum Absolute Sum of Any Subarray | JavaScript TypeScript | Medium |
| 1750 | Minimum Length of String After Deleting Similar Ends | JavaScript TypeScript | Medium |
| 1751 | Maximum Number of Events That Can Be Attended II | Hard | |
| 1752 | Check if Array Is Sorted and Rotated | JavaScript TypeScript | Easy |
| 1753 | Maximum Score From Removing Stones | JavaScript TypeScript | Medium |
| 1754 | Largest Merge Of Two Strings | JavaScript TypeScript | Medium |
| 1755 | Closest Subsequence Sum | Hard | |
| 1756 | Design Most Recently Used Queue | Medium | |
| 1757 | Recyclable and Low Fat Products | Easy | |
| 1758 | Minimum Changes To Make Alternating Binary String | JavaScript TypeScript | Easy |
| 1759 | Count Number of Homogenous Substrings | JavaScript TypeScript | Medium |
| 1760 | Minimum Limit of Balls in a Bag | JavaScript TypeScript | Medium |
| 1761 | Minimum Degree of a Connected Trio in a Graph | Hard | |
| 1762 | Buildings With an Ocean View | Medium | |
| 1763 | Longest Nice Substring | JavaScript TypeScript | Easy |
| 1764 | Form Array by Concatenating Subarrays of Another Array | JavaScript TypeScript | Medium |
| 1765 | Map of Highest Peak | Medium | |
| 1766 | Tree of Coprimes | Hard | |
| 1767 | Find the Subtasks That Did Not Execute | Hard | |
| 1768 | Merge Strings Alternately | JavaScript TypeScript | Easy |
| 1769 | Minimum Number of Operations to Move All Balls to Each Box | JavaScript TypeScript | Medium |
| 1770 | Maximum Score from Performing Multiplication Operations | Medium | |
| 1771 | Maximize Palindrome Length From Subsequences | Hard | |
| 1772 | Sort Features by Popularity | Medium | |
| 1773 | Count Items Matching a Rule | JavaScript TypeScript | Easy |
| 1774 | Closest Dessert Cost | Medium | |
| 1775 | Equal Sum Arrays With Minimum Number of Operations | Medium | |
| 1776 | Car Fleet II | Hard | |
| 1777 | Product's Price for Each Store | Easy | |
| 1778 | Shortest Path in a Hidden Grid | Medium | |
| 1779 | Find Nearest Point That Has the Same X or Y Coordinate | JavaScript TypeScript | Easy |
| 1780 | Check if Number is a Sum of Powers of Three | JavaScript TypeScript | Medium |
| 1781 | Sum of Beauty of All Substrings | JavaScript TypeScript | Medium |
| 1782 | Count Pairs Of Nodes | Hard | |
| 1783 | Grand Slam Titles | Medium | |
| 1784 | Check if Binary String Has at Most One Segment of Ones | JavaScript TypeScript | Easy |
| 1785 | Minimum Elements to Add to Form a Given Sum | JavaScript TypeScript | Medium |
| 1786 | Number of Restricted Paths From First to Last Node | Medium | |
| 1787 | Make the XOR of All Segments Equal to Zero | Hard | |
| 1788 | Maximize the Beauty of the Garden | Hard | |
| 1789 | Primary Department for Each Employee | Easy | |
| 1790 | Check if One String Swap Can Make Strings Equal | JavaScript TypeScript | Easy |
| 1791 | Find Center of Star Graph | JavaScript TypeScript | Medium |
| 1792 | Maximum Average Pass Ratio | Medium | |
| 1793 | Maximum Score of a Good Subarray | Hard | |
| 1794 | Count Pairs of Equal Substrings With Minimum Difference | Medium | |
| 1795 | Rearrange Products Table | Easy | |
| 1796 | Second Largest Digit in a String | JavaScript TypeScript | Easy |
| 1797 | Design Authentication Manager | JavaScript TypeScript | Medium |
| 1798 | Maximum Number of Consecutive Values You Can Make | JavaScript TypeScript | Medium |
| 1799 | Maximize Score After N Operations | Hard | |
| 1800 | Maximum Ascending Subarray Sum | JavaScript TypeScript | Easy |
| 1801 | Number of Orders in the Backlog | JavaScript TypeScript | Medium |
| 1802 | Maximum Value at a Given Index in a Bounded Array | JavaScript TypeScript | Medium |
| 1803 | Count Pairs With XOR in a Range | JavaScript TypeScript | Hard |
| 1804 | Implement Trie II (Prefix Tree) | Medium | |
| 1805 | Number of Different Integers in a String | Easy | |
| 1806 | Minimum Number of Operations to Reinitialize a Permutation | Medium | |
| 1807 | Evaluate the Bracket Pairs of a String | Medium | |
| 1808 | Maximize Number of Nice Divisors | Hard | |
| 1809 | Ad-Free Sessions | Easy | |
| 1810 | Minimum Path Cost in a Hidden Grid | Medium | |
| 1811 | Find Interview Candidates | Medium | |
| 1812 | Determine Color of a Chessboard Square | Easy | |
| 1813 | Sentence Similarity III | Medium | |
| 1814 | Count Nice Pairs in an Array | Medium | |
| 1815 | Maximum Number of Groups Getting Fresh Donuts | Hard | |
| 1816 | Truncate Sentence | Easy | |
| 1817 | Finding the Users Active Minutes | Medium | |
| 1818 | Minimum Absolute Sum Difference | Medium | |
| 1819 | Number of Different Subsequences GCDs | Hard | |
| LCP01 | Guess Numbers | JavaScript TypeScript | Easy |
| LCP02 | Deep Dark Fraction | JavaScript TypeScript | Easy |
| LCP03 | Programmable Robot | Medium | |
| LCP04 | Broken Board Dominoes | Hard | |
| LCP05 | Coin Bonus | Hard | |
| LCP06 | 拿硬币 | JavaScript TypeScript | Easy |
| LCP07 | 传递信息 | Easy | |
| LCP08 | 剧情触发时间 | Medium | |
| LCP09 | 最小跳跃次数 | Hard | |
| LCP10 | 二叉树任务调度 | Hard | |
| LCP11 | 期望个数统计 | Easy | |
| LCP12 | 小张刷题计划 | Medium | |
| LCP13 | 寻宝 | Hard | |
| LCP14 | 切分数组 | Hard | |
| LCP15 | 游乐园的迷宫 | Hard | |
| LCP16 | 游乐园的游览计划 | Hard | |
| LCP17 | 速算机器人 | JavaScript TypeScript | Easy |
| LCP18 | 早餐组合 | JavaScript TypeScript | Easy |
| LCP19 | 秋叶收藏集 | Medium | |
| LCP20 | 快速公交 | Hard | |
| LCP21 | 追逐游戏 | Hard | |
| LCP22 | 黑白方格画 | Easy | |
| LCP23 | 魔术排列 | Medium | |
| LCP24 | 数字游戏 | Hard | |
| LCP25 | 古董键盘 | Hard | |
| LCP26 | 导航装置 | Hard | |
| LCP27 | 黑盒光线反射 | Hard | |
| LCP28 | 采购方案 | Easy | |
| LCP29 | 乐团站位 | Easy | |
| LCP30 | 魔塔游戏 | Medium | |
| LCP31 | 变换的迷宫 | Hard | |
| LCP32 | 批量处理任务 | Hard | |
| 剑指Offer03 | 数组中重复的数字 LCOF | JavaScript TypeScript | Easy |
| 剑指Offer04 | 二维数组中的查找 LCOF | JavaScript TypeScript | Medium |
| 剑指Offer05 | 替换空格 LCOF | JavaScript TypeScript | Easy |
| 剑指Offer06 | 从尾到头打印链表 LCOF | JavaScript TypeScript | Easy |
| 剑指Offer07 | 重建二叉树 LCOF | JavaScript TypeScript | Medium |
| 剑指Offer09 | 用两个栈实现队列 LCOF | JavaScript TypeScript | Easy |
| 剑指Offer10-I | 斐波那契数列 LCOF | JavaScript TypeScript | Easy |
| 剑指Offer10-II | 青蛙跳台阶问题 LCOF | JavaScript TypeScript | Easy |
| 剑指Offer11 | 旋转数组的最小数字 LCOF | JavaScript | Easy |
| 剑指Offer12 | 矩阵中的路径 LCOF | JavaScript TypeScript | Medium |
| 剑指Offer13 | 机器人的运动范围 LCOF | JavaScript TypeScript | Medium |
| 剑指Offer14-I | 剪绳子 LCOF | Medium | |
| 剑指Offer14-II | 剪绳子 II LCOF | Medium | |
| 剑指Offer15 | 二进制中1的个数 LCOF | JavaScript | Easy |
| 剑指Offer16 | 数值的整数次方 LCOF | JavaScript TypeScript | Medium |
| 剑指Offer17 | 打印从1到最大的n位数 LCOF | JavaScript TypeScript | Easy |
| 剑指Offer18 | 删除链表的节点 LCOF | JavaScript TypeScript | Easy |
| 剑指Offer19 | 正则表达式匹配 LCOF | Hard | |
| 剑指Offer20 | 表示数值的字符串 LCOF | Medium | |
| 剑指Offer21 | 调整数组顺序使奇数位于偶数前面 LCOF | JavaScript TypeScript | Easy |
| 剑指Offer22 | 链表中倒数第k个节点 LCOF | JavaScript TypeScript | Easy |
| 剑指Offer24 | 反转链表 LCOF | JavaScript TypeScript | Easy |
| 剑指Offer25 | 合并两个排序的链表 LCOF | JavaScript TypeScript | Easy |
| 剑指Offer26 | 树的子结构 LCOF | JavaScript TypeScript | Medium |
| 剑指Offer27 | 二叉树的镜像 LCOF | JavaScript TypeScript | Easy |
| 剑指Offer28 | 对称的二叉树 LCOF | JavaScript TypeScript | Easy |
| 剑指Offer29 | 顺时针打印矩阵 LCOF | JavaScript | Easy |
| 面试题30 | 包含min函数的栈 LCOF | JavaScript TypeScript | Easy |
| 剑指Offer31 | 栈的压入、弹出序列 LCOF | JavaScript TypeScript | Medium |
| 剑指Offer32-I | 从上到下打印二叉树 LCOF | JavaScript TypeScript | Medium |
| 剑指Offer32-II | 从上到下打印二叉树 II LCOF | JavaScript TypeScript | Easy |
| 剑指Offer32-III | 从上到下打印二叉树 III LCOF | JavaScript TypeScript | Medium |
| 剑指Offer33 | 二叉搜索树的后序遍历序列 LCOF | JavaScript | Medium |
| 面试题34 | 二叉树中和为某一值的路径 LCOF | JavaScript TypeScript | Medium |
| 剑指Offer35 | 复杂链表的复制 LCOF | JavaScript | Medium |
| 剑指Offer36 | 二叉搜索树与双向链表 LCOF | JavaScript | Medium |
| 剑指Offer37 | 序列化二叉树 LCOF | JavaScript | Hard |
| 剑指Offer38 | 字符串的排列 LCOF | JavaScript TypeScript | Medium |
| 剑指Offer39 | 数组中出现次数超过一半的数字 LCOF | JavaScript TypeScript | Easy |
| 剑指Offer40 | 最小的k个数 LCOF | JavaScript TypeScript | Easy |
| 剑指Offer41 | 数据流中的中位数 LCOF | JavaScript TypeScript | Hard |
| 剑指Offer42 | 连续子数组的最大和 LCOF | JavaScript TypeScript | Easy |
| 剑指Offer43 | 1～n整数中1出现的次数 LCOF | JavaScript | Hard |
| 剑指Offer44 | 数字序列中某一位的数字 LCOF | JavaScript | Medium |
| 剑指Offer45 | 把数组排成最小的数 LCOF | JavaScript TypeScript | Medium |
| 剑指Offer46 | 把数字翻译成字符串 LCOF | JavaScript TypeScript | Medium |
| 剑指Offer47 | 礼物的最大价值 LCOF | JavaScript TypeScript | Medium |
| 剑指Offer48 | 最长不含重复字符的子字符串 LCOF | JavaScript | Medium |
| 剑指Offer49 | 丑数 LCOF | JavaScript | Medium |
| 剑指Offer50 | 第一个只出现一次的字符 LCOF | JavaScript TypeScript | Easy |
| 剑指Offer51 | 数组中的逆序对 LCOF | JavaScript | Hard |
| 剑指Offer52 | 两个链表的第一个公共节点 LCOF | JavaScript | Easy |
| 剑指Offer53-I | 在排序数组中查找数字 LCOF | JavaScript TypeScript | Easy |
| 剑指Offer53-II | 缺失的数字 LCOF | JavaScript TypeScript | Easy |
| 剑指Offer54 | 二叉搜索树的第k大节点 LCOF | JavaScript TypeScript | Easy |
| 剑指Offer55-I | 二叉树的深度 LCOF | JavaScript TypeScript | Easy |
| 剑指Offer55-II | 平衡二叉树 LCOF | JavaScript TypeScript | Easy |
| 剑指Offer56-I | 数组中数字出现的次数 LCOF | JavaScript TypeScript | Medium |
| 剑指Offer56-II | 数组中数字出现的次数 II LCOF | JavaScript | Medium |
| 剑指Offer57 | 和为s的两个数字 LCOF | JavaScript | Easy |
| 剑指Offer57-II | 和为s的连续正数序列 LCOF | JavaScript TypeScript | Easy |
| 剑指Offer58-I | 翻转单词顺序 LCOF | JavaScript TypeScript | Easy |
| 剑指Offer58-II | 左旋转字符串 LCOF | JavaScript TypeScript | Easy |
| 面试题59-I | 滑动窗口的最大值 LCOF | JavaScript TypeScript | Hard |
| 剑指Offer59-II | 队列的最大值 LCOF | JavaScript TypeScript | Medium |
| 剑指Offer60 | n个骰子的点数 LCOF | JavaScript | Medium |
| 剑指Offer61 | 扑克牌中的顺子 LCOF | JavaScript TypeScript | Easy |
| 剑指Offer62 | 圆圈中最后剩下的数字 LCOF | Easy | |
| 剑指Offer63 | 股票的最大利润 LCOF | JavaScript TypeScript | Medium |
| 剑指Offer64 | 求1+2+…+n LCOF | JavaScript TypeScript | Medium |
| 剑指Offer65 | 不用加减乘除做加法 LCOF | JavaScript TypeScript | Easy |
| 剑指Offer66 | 构建乘积数组 LCOF | JavaScript TypeScript | Medium |
| 剑指Offer67 | 把字符串转换成整数 LCOF | Medium | |
| 剑指Offer68-I | 二叉搜索树的最近公共祖先 LCOF | JavaScript Python3 TypeScript | Easy |
| 剑指Offer68-II | 二叉树的最近公共祖先 LCOF | JavaScript Python3 TypeScript | Easy |
| 面试题01_01 | Is Unique LCCI | JavaScript TypeScript | Easy |
| 面试题01_02 | Check Permutation LCCI | JavaScript TypeScript | Easy |
| 面试题01_03 | String to URL LCCI | JavaScript TypeScript | Easy |
| 面试题01_04 | Palindrome Permutation LCCI | JavaScript TypeScript | Easy |
| 面试题01_05 | One Away LCCI | JavaScript TypeScript | Medium |
| 面试题01_06 | Compress String LCCI | JavaScript TypeScript | Easy |
| 面试题01_07 | Rotate Matrix LCCI | JavaScript | Medium |
| 面试题01_08 | Zero Matrix LCCI | JavaScript TypeScript | Medium |
| 面试题01_09 | String Rotation LCCI | JavaScript TypeScript | Easy |
| 面试题02_01 | Remove Duplicate Node LCCI | JavaScript TypeScript | Easy |
| 面试题02_02 | Kth Node From End of List LCCI | JavaScript TypeScript | Easy |
| 面试题02_03 | Delete Middle Node LCCI | JavaScript | Easy |
| 面试题02_04 | Partition List LCCI | JavaScript | Medium |
| 面试题02_05 | Sum Lists LCCI | JavaScript TypeScript | Medium |
| 面试题02_06 | Palindrome Linked List LCCI | JavaScript TypeScript | Easy |
| 面试题02_07 | Intersection of Two Linked Lists LCCI | JavaScript | Easy |
| 面试题02_08 | Linked List Cycle LCCI | JavaScript | Medium |
| 面试题03_01 | Three in One LCCI | JavaScript | Easy |
| 面试题03_02 | Min Stack LCCI | JavaScript TypeScript | Easy |
| 面试题03_03 | Stack of Plates LCCI | JavaScript | Medium |
| 面试题03_04 | Implement Queue using Stacks LCCI | JavaScript TypeScript | Easy |
| 面试题03_05 | Sort of Stacks LCCI | JavaScript | Medium |
| 面试题03_06 | Animal Shelter LCCI | JavaScript TypeScript | Easy |
| 面试题04_01 | Route Between Nodes LCCI | JavaScript TypeScript | Medium |
| 面试题04_02 | Minimum Height Tree LCCI | JavaScript TypeScript | Easy |
| 面试题04_03 | List of Depth LCCI | JavaScript TypeScript | Medium |
| 面试题04_04 | Check Balance LCCI | JavaScript TypeScript | Easy |
| 面试题04_05 | Legal Binary Search Tree LCCI | JavaScript TypeScript | Medium |
| 面试题04_06 | Successor LCCI | JavaScript | Medium |
| 面试题04_08 | First Common Ancestor LCCI | JavaScript | Medium |
| 面试题04_09 | BST Sequences LCCI | JavaScript TypeScript | Hard |
| 面试题04_10 | Check SubTree LCCI | JavaScript TypeScript | Medium |
| 面试题04_12 | Paths with Sum LCCI | JavaScript TypeScript | Medium |
| 面试题05_01 | Insert Into Bits LCCI | JavaScript | Easy |
| 面试题05_02 | Bianry Number to String LCCI | Medium | |
| 面试题05_03 | Reverse Bits LCCI | JavaScript | Easy |
| 面试题05_04 | Closed Number LCCI | Medium | |
| 面试题05_06 | Convert Integer LCCI | JavaScript TypeScript | Easy |
| 面试题05_07 | Exchange LCCI | Easy | |
| 面试题05_08 | Draw Line LCCI | Medium | |
| 面试题08_01 | Three Steps Problem LCCI | JavaScript TypeScript | Easy |
| 面试题08_02 | Robot in a Grid LCCI | JavaScript TypeScript | Medium |
| 面试题08_03 | Magic Index LCCI | JavaScript TypeScript | Easy |
| 面试题08_04 | Power Set LCCI | JavaScript TypeScript | Medium |
| 面试题08_05 | Recursive Mulitply LCCI | Medium | |
| 面试题08_06 | Hanota LCCI | Easy | |
| 面试题08_07 | Permutation I LCCI | JavaScript TypeScript | Medium |
| 面试题08_08 | Permutation II LCCI | JavaScript TypeScript | Medium |
| 面试题08_09 | Bracket LCCI | JavaScript TypeScript | Medium |
| 面试题08_10 | Color Fill LCCI | JavaScript TypeScript | Easy |
| 面试题08_11 | Coin LCCI | JavaScript TypeScript | Medium |
| 面试题08_12 | Eight Queens LCCI | Hard | |
| 面试题08_13 | Pile Box LCCI | Hard | |
| 面试题08_14 | Boolean Evaluation LCCI | Medium | |
| 面试题10_01 | Sorted Merge LCCI | JavaScript TypeScript | Easy |
| 面试题10_02 | Group Anagrams LCCI | JavaScript TypeScript | Medium |
| 面试题10_03 | Search Rotate Array LCCI | JavaScript | Medium |
| 面试题10_05 | Sparse Array Search LCCI | JavaScript TypeScript | Easy |
| 面试题10_09 | Sorted Matrix Search LCCI | JavaScript | Medium |
| 面试题10_10 | Rank from Stream LCCI | JavaScript TypeScript | Medium |
| 面试题10_11 | Peaks and Valleys LCCI | Medium | |
| 面试题16_01 | Swap Numbers LCCI | JavaScript TypeScript | Medium |
| 面试题16_02 | Words Frequency LCCI | JavaScript TypeScript | Medium |
| 面试题16_03 | Intersection LCCI | Hard | |
| 面试题16_04 | Tic-Tac-Toe LCCI | JavaScript TypeScript | Medium |
| 面试题16_05 | Factorial Zeros LCCI | JavaScript TypeScript | Easy |
| 面试题16_06 | Smallest Difference LCCI | JavaScript TypeScript | Medium |
| 面试题16_07 | Maximum LCCI | JavaScript TypeScript | Easy |
| 面试题16_08 | English Int LCCI | JavaScript | Hard |
| 面试题16_09 | Operations LCCI | Medium | |
| 面试题16_10 | Living People LCCI | JavaScript | Medium |
| 面试题16_11 | Diving Board LCCI | JavaScript | Easy |
| 面试题16_13 | Bisect Squares LCCI | Medium | |
| 面试题16_14 | Best Line LCCI | Medium | |
| 面试题16_15 | Master Mind LCCI | JavaScript | Easy |
| 面试题16_16 | Sub Sort LCCI | Medium | |
| 面试题16_17 | Contiguous Sequence LCCI | JavaScript TypeScript | Easy |
| 面试题16_18 | Pattern Matching LCCI | Medium | |
| 面试题16_19 | Pond Sizes LCCI | JavaScript | Medium |
| 面试题16_20 | T9 LCCI | JavaScript | Medium |
| 面试题16_21 | Sum Swap LCCI | JavaScript | Medium |
| 面试题16_22 | Langtons Ant LCCI | Medium | |
| 面试题16_24 | Pairs With Sum LCCI | JavaScript | Medium |
| 面试题16_25 | LRU Cache LCCI | JavaScript | Medium |
| 面试题16_26 | Calculator LCCI | Medium | |
| 面试题17_01 | Add Without Plus LCCI | JavaScript | Easy |
| 面试题17_04 | Missing Number LCCI | JavaScript TypeScript | Easy |
| 面试题17_05 | Find Longest Subarray LCCI | JavaScript | Medium |
| 面试题17_06 | Number Of 2s In Range LCCI | Hard | |
| 面试题17_07 | Baby Names LCCI | JavaScript | Medium |
| 面试题17_08 | Circus Tower LCCI | Medium | |
| 面试题17_09 | Get Kth Magic Number LCCI | Medium | |
| 面试题17_10 | Find Majority Element LCCI | JavaScript | Easy |
| 面试题17_11 | Find Closest LCCI | JavaScript | Medium |
| 面试题17_12 | BiNode LCCI | JavaScript TypeScript | Easy |
| 面试题17_13 | Re-Space LCCI | Medium | |
| 面试题17_14 | Smallest K LCCI | JavaScript | Medium |
| 面试题17_15 | Longest Word LCCI | Medium | |
| 面试题17_16 | The Masseuse LCCI | JavaScript | Easy |
| 面试题17_17 | Multi Search LCCI | Medium | |
| 面试题17_18 | Shortest Supersequence LCCI | Medium | |
| 面试题17_19 | Missing Two LCCI | JavaScript | Hard |
| 面试题17_20 | Continuous Median LCCI | JavaScript | Hard |
| 面试题17_21 | Volume of Histogram LCCI | JavaScript | Hard |
| 面试题17_22 | Word Transformer LCCI | Medium | |
| 面试题17_23 | Max Black Square LCCI | Medium | |
| 面试题17_24 | Max Submatrix LCCI | Hard | |
| 面试题17_25 | Word Rectangle LCCI | Hard | |
| 面试题17_26 | Sparse Similarity LCCI | Hard |
forked from jiangshanmeta/meta
-
Notifications
You must be signed in to change notification settings - Fork 0
leetcode javascript/typescript实现
License
maxime-pan/meta
Folders and files
| Name | Name | Last commit message | Last commit date | |
|---|---|---|---|---|
Repository files navigation
About
leetcode javascript/typescript实现
Resources
License
Stars
Watchers
Forks
Releases
No releases published
Packages 0
No packages published
Languages
- JavaScript 71.5%
- TypeScript 27.5%
- Python 1.0%