| 2856 | https://leetcode.com/problems/minimum-array-length-after-pair-removals | Minimum Array Length After Pair Removals | Medium | 27.0% | 75.0% |
| 10 | https://leetcode.com/problems/regular-expression-matching | Regular Expression Matching | Hard | 30.4% | 62.5% |
| 21 | https://leetcode.com/problems/merge-two-sorted-lists | Merge Two Sorted Lists | Easy | 67.9% | 50.0% |
| 24 | https://leetcode.com/problems/swap-nodes-in-pairs | Swap Nodes in Pairs | Medium | 68.9% | 50.0% |
| 25 | https://leetcode.com/problems/reverse-nodes-in-k-group | Reverse Nodes in k-Group | Hard | 65.3% | 50.0% |
| 981 | https://leetcode.com/problems/time-based-key-value-store | Time Based Key-Value Store | Medium | 49.7% | 62.5% |
| 545 | https://leetcode.com/problems/boundary-of-binary-tree | Boundary of Binary Tree | Medium | 47.9% | 62.5% |
| 588 | https://leetcode.com/problems/design-in-memory-file-system | Design In-Memory File System | Hard | 48.4% | 100.0% |
| 116 | https://leetcode.com/problems/populating-next-right-pointers-in-each-node | Populating Next Right Pointers in Each Node | Medium | 66.8% | 50.0% |
| 117 | https://leetcode.com/problems/populating-next-right-pointers-in-each-node-ii | Populating Next Right Pointers in Each Node II | Medium | 57.1% | 62.5% |
| 2050 | https://leetcode.com/problems/parallel-courses-iii | Parallel Courses III | Hard | 66.8% | 87.5% |
| 146 | https://leetcode.com/problems/lru-cache | LRU Cache | Medium | 46.8% | 62.5% |
| 2702 | https://leetcode.com/problems/minimum-operations-to-make-numbers-non-positive | Minimum Operations to Make Numbers Non-positive | Hard | 44.0% | 37.5% |
| 202 | https://leetcode.com/problems/happy-number | Happy Number | Easy | 59.2% | 100.0% |
| 1639 | https://leetcode.com/problems/number-of-ways-to-form-a-target-string-given-a-dictionary | Number of Ways to Form a Target String Given a Dictionary | Hard | 56.6% | 75.0% |
| 212 | https://leetcode.com/problems/word-search-ii | Word Search II | Hard | 38.1% | 87.5% |
| 210 | https://leetcode.com/problems/course-schedule-ii | Course Schedule II | Medium | 55.0% | 100.0% |
| 224 | https://leetcode.com/problems/basic-calculator | Basic Calculator | Hard | 46.5% | 75.0% |
| 227 | https://leetcode.com/problems/basic-calculator-ii | Basic Calculator II | Medium | 46.6% | 50.0% |
| 741 | https://leetcode.com/problems/cherry-pickup | Cherry Pickup | Hard | 39.1% | 37.5% |
| 2742 | https://leetcode.com/problems/painting-the-walls | Painting the Walls | Hard | 48.9% | 87.5% |
| 253 | https://leetcode.com/problems/meeting-rooms-ii | Meeting Rooms II | Medium | 52.5% | 37.5% |
| 271 | https://leetcode.com/problems/encode-and-decode-strings | Encode and Decode Strings | Medium | 51.2% | 50.0% |
| 273 | https://leetcode.com/problems/integer-to-english-words | Integer to English Words | Hard | 34.8% | 50.0% |
| 787 | https://leetcode.com/problems/cheapest-flights-within-k-stops | Cheapest Flights Within K Stops | Medium | 41.4% | 50.0% |
| 1235 | https://leetcode.com/problems/maximum-profit-in-job-scheduling | Maximum Profit in Job Scheduling | Hard | 54.6% | 75.0% |
| 330 | https://leetcode.com/problems/patching-array | Patching Array | Hard | 54.1% | 37.5% |
| 2303 | https://leetcode.com/problems/calculate-amount-paid-in-taxes | Calculate Amount Paid in Taxes | Easy | 69.0% | 87.5% |
| 362 | https://leetcode.com/problems/design-hit-counter | Design Hit Counter | Medium | 69.6% | 62.5% |
| 380 | https://leetcode.com/problems/insert-delete-getrandom-o1 | Insert Delete GetRandom O(1) | Medium | 55.3% | 62.5% |
| 3177 | https://leetcode.com/problems/find-the-maximum-length-of-a-good-subsequence-ii | Find the Maximum Length of a Good Subsequence II | Hard | 25.1% | 75.0% |
| 3176 | https://leetcode.com/problems/find-the-maximum-length-of-a-good-subsequence-i | Find the Maximum Length of a Good Subsequence I | Medium | 32.5% | 75.0% |
| 3155 | https://leetcode.com/problems/maximum-number-of-upgradable-servers | Maximum Number of Upgradable Servers | Medium | 43.1% | 87.5% |
| 399 | https://leetcode.com/problems/evaluate-division | Evaluate Division | Medium | 64.0% | 37.5% |
| 438 | https://leetcode.com/problems/find-all-anagrams-in-a-string | Find All Anagrams in a String | Medium | 53.3% | 87.5% |
| 2851 | https://leetcode.com/problems/string-transformation | String Transformation | Hard | 26.6% | 75.0% |
| 706 | https://leetcode.com/problems/design-hashmap | Design HashMap | Easy | 66.4% | 62.5% |
| 1898 | https://leetcode.com/problems/maximum-number-of-removable-characters | Maximum Number of Removable Characters | Medium | 46.8% | 37.5% |
| 2265 | https://leetcode.com/problems/count-nodes-equal-to-average-of-subtree | Count Nodes Equal to Average of Subtree | Medium | 86.7% | 37.5% |
| 301 | https://leetcode.com/problems/remove-invalid-parentheses | Remove Invalid Parentheses | Hard | 49.8% | 37.5% |
| 42 | https://leetcode.com/problems/trapping-rain-water | Trapping Rain Water | Hard | 66.8% | 87.5% |
| 872 | https://leetcode.com/problems/leaf-similar-trees | Leaf-Similar Trees | Easy | 70.2% | 50.0% |
| 76 | https://leetcode.com/problems/minimum-window-substring | Minimum Window Substring | Hard | 46.9% | 87.5% |
| 11 | https://leetcode.com/problems/container-with-most-water | Container With Most Water | Medium | 59.5% | 37.5% |
| 207 | https://leetcode.com/problems/course-schedule | Course Schedule | Medium | 50.8% | 62.5% |
| 2062 | https://leetcode.com/problems/count-vowel-substrings-of-a-string | Count Vowel Substrings of a String | Easy | 72.8% | 75.0% |
| 155 | https://leetcode.com/problems/min-stack | Min Stack | Medium | 57.7% | 50.0% |
| 528 | https://leetcode.com/problems/random-pick-with-weight | Random Pick with Weight | Medium | 48.9% | 50.0% |
| 139 | https://leetcode.com/problems/word-break | Word Break | Medium | 49.1% | 37.5% |
| 295 | https://leetcode.com/problems/find-median-from-data-stream | Find Median from Data Stream | Hard | 54.2% | 50.0% |
| 23 | https://leetcode.com/problems/merge-k-sorted-lists | Merge k Sorted Lists | Hard | 58.8% | 75.0% |
| 105 | https://leetcode.com/problems/construct-binary-tree-from-preorder-and-inorder-traversal | Construct Binary Tree from Preorder and Inorder Traversal | Medium | 68.3% | 37.5% |
| 621 | https://leetcode.com/problems/task-scheduler | Task Scheduler | Medium | 62.6% | 50.0% |
| 138 | https://leetcode.com/problems/copy-list-with-random-pointer | Copy List with Random Pointer | Medium | 62.4% | 62.5% |
| 2467 | https://leetcode.com/problems/most-profitable-path-in-a-tree | Most Profitable Path in a Tree | Medium | 67.3% | 37.5% |
| 52 | https://leetcode.com/problems/n-queens-ii | N-Queens II | Hard | 78.1% | 50.0% |
| 1146 | https://leetcode.com/problems/snapshot-array | Snapshot Array | Medium | 36.7% | 50.0% |
| 849 | https://leetcode.com/problems/maximize-distance-to-closest-person | Maximize Distance to Closest Person | Medium | 49.6% | 62.5% |
| 687 | https://leetcode.com/problems/longest-univalue-path | Longest Univalue Path | Medium | 43.5% | 50.0% |
| 1600 | https://leetcode.com/problems/throne-inheritance | Throne Inheritance | Medium | 66.8% | 75.0% |
| 408 | https://leetcode.com/problems/valid-word-abbreviation | Valid Word Abbreviation | Easy | 37.0% | 37.5% |
| 2096 | https://leetcode.com/problems/step-by-step-directions-from-a-binary-tree-node-to-another | Step-By-Step Directions From a Binary Tree Node to Another | Medium | 56.4% | 75.0% |
| 208 | https://leetcode.com/problems/implement-trie-prefix-tree | Implement Trie (Prefix Tree) | Medium | 69.2% | 37.5% |
| 695 | https://leetcode.com/problems/max-area-of-island | Max Area of Island | Medium | 73.8% | 62.5% |
| 1 | https://leetcode.com/problems/two-sum | Two Sum | Easy | 57.1% | 75.0% |
| 286 | https://leetcode.com/problems/walls-and-gates | Walls and Gates | Medium | 63.8% | 37.5% |
| 51 | https://leetcode.com/problems/n-queens | N-Queens | Hard | 74.9% | 37.5% |
| 540 | https://leetcode.com/problems/single-element-in-a-sorted-array | Single Element in a Sorted Array | Medium | 59.2% | 50.0% |
| 1353 | https://leetcode.com/problems/maximum-number-of-events-that-can-be-attended | Maximum Number of Events That Can Be Attended | Medium | 38.9% | 50.0% |
| 1631 | https://leetcode.com/problems/path-with-minimum-effort | Path With Minimum Effort | Medium | 62.8% | 37.5% |
| 211 | https://leetcode.com/problems/design-add-and-search-words-data-structure | Design Add and Search Words Data Structure | Medium | 48.1% | 50.0% |
| 1233 | https://leetcode.com/problems/remove-sub-folders-from-the-filesystem | Remove Sub-Folders from the Filesystem | Medium | 78.6% | 62.5% |
| 402 | https://leetcode.com/problems/remove-k-digits | Remove K Digits | Medium | 36.4% | 50.0% |
| 121 | https://leetcode.com/problems/best-time-to-buy-and-sell-stock | Best Time to Buy and Sell Stock | Easy | 56.4% | 37.5% |
| 13 | https://leetcode.com/problems/roman-to-integer | Roman to Integer | Easy | 66.2% | 37.5% |
| 71 | https://leetcode.com/problems/simplify-path | Simplify Path | Medium | 50.0% | 50.0% |
| 347 | https://leetcode.com/problems/top-k-frequent-elements | Top K Frequent Elements | Medium | 65.8% | 62.5% |
| 827 | https://leetcode.com/problems/making-a-large-island | Making A Large Island | Hard | 56.3% | 37.5% |
| 435 | https://leetcode.com/problems/non-overlapping-intervals | Non-overlapping Intervals | Medium | 56.7% | 37.5% |
| 1136 | https://leetcode.com/problems/parallel-courses | Parallel Courses | Medium | 62.0% | 62.5% |
| 917 | https://leetcode.com/problems/reverse-only-letters | Reverse Only Letters | Easy | 68.1% | 50.0% |
| 947 | https://leetcode.com/problems/most-stones-removed-with-same-row-or-column | Most Stones Removed with Same Row or Column | Medium | 62.7% | 50.0% |
| 841 | https://leetcode.com/problems/keys-and-rooms | Keys and Rooms | Medium | 75.5% | 50.0% |
| 36 | https://leetcode.com/problems/valid-sudoku | Valid Sudoku | Medium | 64.1% | 37.5% |
| 1242 | https://leetcode.com/problems/web-crawler-multithreaded | Web Crawler Multithreaded | Medium | 51.0% | 62.5% |
| 1751 | https://leetcode.com/problems/maximum-number-of-events-that-can-be-attended-ii | Maximum Number of Events That Can Be Attended II | Hard | 63.6% | 50.0% |
| 635 | https://leetcode.com/problems/design-log-storage-system | Design Log Storage System | Medium | 59.2% | 50.0% |
| 881 | https://leetcode.com/problems/boats-to-save-people | Boats to Save People | Medium | 61.4% | 37.5% |
| 79 | https://leetcode.com/problems/word-search | Word Search | Medium | 46.8% | 37.5% |
| 729 | https://leetcode.com/problems/my-calendar-i | My Calendar I | Medium | 58.2% | 37.5% |
| 1604 | https://leetcode.com/problems/alert-using-same-key-card-three-or-more-times-in-a-one-hour-period | Alert Using Same Key-Card Three or More Times in a One Hour Period | Medium | 46.1% | 37.5% |
| 1236 | https://leetcode.com/problems/web-crawler | Web Crawler | Medium | 68.9% | 62.5% |
| 622 | https://leetcode.com/problems/design-circular-queue | Design Circular Queue | Medium | 54.0% | 37.5% |
| 1166 | https://leetcode.com/problems/design-file-system | Design File System | Medium | 65.1% | 37.5% |
| 994 | https://leetcode.com/problems/rotting-oranges | Rotting Oranges | Medium | 58.1% | 50.0% |
| 276 | https://leetcode.com/problems/paint-fence | Paint Fence | Medium | 48.3% | 37.5% |
| 2 | https://leetcode.com/problems/add-two-numbers | Add Two Numbers | Medium | 47.9% | 37.5% |
| 1494 | https://leetcode.com/problems/parallel-courses-ii | Parallel Courses II | Hard | 30.5% | 37.5% |
| 45 | https://leetcode.com/problems/jump-game-ii | Jump Game II | Medium | 42.4% | 37.5% |
| 490 | https://leetcode.com/problems/the-maze | The Maze | Medium | 60.3% | 37.5% |
| 1057 | https://leetcode.com/problems/campus-bikes | Campus Bikes | Medium | 59.1% | 37.5% |
| 261 | https://leetcode.com/problems/graph-valid-tree | Graph Valid Tree | Medium | 49.8% | 50.0% |
| 243 | https://leetcode.com/problems/shortest-word-distance | Shortest Word Distance | Easy | 66.2% | 50.0% |
| 2458 | https://leetcode.com/problems/height-of-binary-tree-after-subtree-removal-queries | Height of Binary Tree After Subtree Removal Queries | Hard | 54.9% | 37.5% |