| 1 | https://leetcode.com/problems/two-sum | Two Sum | Easy | 57.1% | 87.5% |
| 2 | https://leetcode.com/problems/add-two-numbers | Add Two Numbers | Medium | 47.9% | 50.0% |
| 3 | https://leetcode.com/problems/longest-substring-without-repeating-characters | Longest Substring Without Repeating Characters | Medium | 38.5% | 87.5% |
| 4 | https://leetcode.com/problems/median-of-two-sorted-arrays | Median of Two Sorted Arrays | Hard | 45.9% | 50.0% |
| 5 | https://leetcode.com/problems/longest-palindromic-substring | Longest Palindromic Substring | Medium | 37.3% | 75.0% |
| 6 | https://leetcode.com/problems/zigzag-conversion | Zigzag Conversion | Medium | 53.5% | 50.0% |
| 11 | https://leetcode.com/problems/container-with-most-water | Container With Most Water | Medium | 59.5% | 62.5% |
| 12 | https://leetcode.com/problems/integer-to-roman | Integer to Roman | Medium | 70.4% | 50.0% |
| 13 | https://leetcode.com/problems/roman-to-integer | Roman to Integer | Easy | 66.2% | 62.5% |
| 14 | https://leetcode.com/problems/longest-common-prefix | Longest Common Prefix | Easy | 47.1% | 50.0% |
| 10 | https://leetcode.com/problems/regular-expression-matching | Regular Expression Matching | Hard | 30.4% | 37.5% |
| 17 | https://leetcode.com/problems/letter-combinations-of-a-phone-number | Letter Combinations of a Phone Number | Medium | 65.5% | 50.0% |
| 15 | https://leetcode.com/problems/3sum | 3Sum | Medium | 38.6% | 62.5% |
| 21 | https://leetcode.com/problems/merge-two-sorted-lists | Merge Two Sorted Lists | Easy | 67.9% | 50.0% |
| 22 | https://leetcode.com/problems/generate-parentheses | Generate Parentheses | Medium | 78.2% | 62.5% |
| 23 | https://leetcode.com/problems/merge-k-sorted-lists | Merge k Sorted Lists | Hard | 58.8% | 75.0% |
| 26 | https://leetcode.com/problems/remove-duplicates-from-sorted-array | Remove Duplicates from Sorted Array | Easy | 62.2% | 37.5% |
| 32 | https://leetcode.com/problems/longest-valid-parentheses | Longest Valid Parentheses | Hard | 38.0% | 50.0% |
| 33 | https://leetcode.com/problems/search-in-rotated-sorted-array | Search in Rotated Sorted Array | Medium | 44.1% | 62.5% |
| 34 | https://leetcode.com/problems/find-first-and-last-position-of-element-in-sorted-array | Find First and Last Position of Element in Sorted Array | Medium | 48.3% | 50.0% |
| 37 | https://leetcode.com/problems/sudoku-solver | Sudoku Solver | Hard | 65.4% | 25.0% |
| 39 | https://leetcode.com/problems/combination-sum | Combination Sum | Medium | 76.1% | 37.5% |
| 40 | https://leetcode.com/problems/combination-sum-ii | Combination Sum II | Medium | 59.0% | 37.5% |
| 41 | https://leetcode.com/problems/first-missing-positive | First Missing Positive | Hard | 42.4% | 50.0% |
| 42 | https://leetcode.com/problems/trapping-rain-water | Trapping Rain Water | Hard | 66.8% | 62.5% |
| 45 | https://leetcode.com/problems/jump-game-ii | Jump Game II | Medium | 42.4% | 37.5% |
| 46 | https://leetcode.com/problems/permutations | Permutations | Medium | 81.6% | 37.5% |
| 49 | https://leetcode.com/problems/group-anagrams | Group Anagrams | Medium | 72.2% | 75.0% |
| 50 | https://leetcode.com/problems/powx-n | Pow(x, n) | Medium | 38.2% | 37.5% |
| 48 | https://leetcode.com/problems/rotate-image | Rotate Image | Medium | 79.3% | 37.5% |
| 53 | https://leetcode.com/problems/maximum-subarray | Maximum Subarray | Medium | 53.0% | 50.0% |
| 54 | https://leetcode.com/problems/spiral-matrix | Spiral Matrix | Medium | 56.1% | 62.5% |
| 55 | https://leetcode.com/problems/jump-game | Jump Game | Medium | 40.5% | 37.5% |
| 56 | https://leetcode.com/problems/merge-intervals | Merge Intervals | Medium | 51.1% | 75.0% |
| 57 | https://leetcode.com/problems/insert-interval | Insert Interval | Medium | 44.7% | 37.5% |
| 61 | https://leetcode.com/problems/rotate-list | Rotate List | Medium | 41.2% | 37.5% |
| 62 | https://leetcode.com/problems/unique-paths | Unique Paths | Medium | 66.5% | 25.0% |
| 68 | https://leetcode.com/problems/text-justification | Text Justification | Hard | 50.4% | 37.5% |
| 73 | https://leetcode.com/problems/set-matrix-zeroes | Set Matrix Zeroes | Medium | 62.4% | 50.0% |
| 75 | https://leetcode.com/problems/sort-colors | Sort Colors | Medium | 69.1% | 50.0% |
| 76 | https://leetcode.com/problems/minimum-window-substring | Minimum Window Substring | Hard | 46.9% | 37.5% |
| 79 | https://leetcode.com/problems/word-search | Word Search | Medium | 46.8% | 50.0% |
| 83 | https://leetcode.com/problems/remove-duplicates-from-sorted-list | Remove Duplicates from Sorted List | Easy | 56.2% | 37.5% |
| 88 | https://leetcode.com/problems/merge-sorted-array | Merge Sorted Array | Easy | 54.4% | 37.5% |
| 91 | https://leetcode.com/problems/decode-ways | Decode Ways | Medium | 37.6% | 25.0% |
| 93 | https://leetcode.com/problems/restore-ip-addresses | Restore IP Addresses | Medium | 55.3% | 50.0% |
| 98 | https://leetcode.com/problems/validate-binary-search-tree | Validate Binary Search Tree | Medium | 35.3% | 50.0% |
| 103 | https://leetcode.com/problems/binary-tree-zigzag-level-order-traversal | Binary Tree Zigzag Level Order Traversal | Medium | 63.1% | 50.0% |
| 113 | https://leetcode.com/problems/path-sum-ii | Path Sum II | Medium | 61.7% | 37.5% |
| 116 | https://leetcode.com/problems/populating-next-right-pointers-in-each-node | Populating Next Right Pointers in Each Node | Medium | 66.8% | 37.5% |
| 121 | https://leetcode.com/problems/best-time-to-buy-and-sell-stock | Best Time to Buy and Sell Stock | Easy | 56.4% | 62.5% |
| 124 | https://leetcode.com/problems/binary-tree-maximum-path-sum | Binary Tree Maximum Path Sum | Hard | 42.0% | 50.0% |
| 128 | https://leetcode.com/problems/longest-consecutive-sequence | Longest Consecutive Sequence | Medium | 47.0% | 62.5% |
| 134 | https://leetcode.com/problems/gas-station | Gas Station | Medium | 47.5% | 50.0% |
| 138 | https://leetcode.com/problems/copy-list-with-random-pointer | Copy List with Random Pointer | Medium | 62.4% | 50.0% |
| 140 | https://leetcode.com/problems/word-break-ii | Word Break II | Hard | 55.1% | 50.0% |
| 141 | https://leetcode.com/problems/linked-list-cycle | Linked List Cycle | Easy | 53.9% | 37.5% |
| 146 | https://leetcode.com/problems/lru-cache | LRU Cache | Medium | 46.8% | 100.0% |
| 148 | https://leetcode.com/problems/sort-list | Sort List | Medium | 63.8% | 37.5% |
| 155 | https://leetcode.com/problems/min-stack | Min Stack | Medium | 57.7% | 62.5% |
| 162 | https://leetcode.com/problems/find-peak-element | Find Peak Element | Medium | 46.8% | 37.5% |
| 167 | https://leetcode.com/problems/two-sum-ii-input-array-is-sorted | Two Sum II - Input Array Is Sorted | Medium | 64.6% | 37.5% |
| 169 | https://leetcode.com/problems/majority-element | Majority Element | Easy | 66.1% | 50.0% |
| 179 | https://leetcode.com/problems/largest-number | Largest Number | Medium | 42.6% | 50.0% |
| 189 | https://leetcode.com/problems/rotate-array | Rotate Array | Medium | 44.4% | 37.5% |
| 199 | https://leetcode.com/problems/binary-tree-right-side-view | Binary Tree Right Side View | Medium | 69.5% | 62.5% |
| 200 | https://leetcode.com/problems/number-of-islands | Number of Islands | Medium | 63.8% | 87.5% |
| 205 | https://leetcode.com/problems/isomorphic-strings | Isomorphic Strings | Easy | 48.0% | 37.5% |
| 206 | https://leetcode.com/problems/reverse-linked-list | Reverse Linked List | Easy | 80.2% | 62.5% |
| 207 | https://leetcode.com/problems/course-schedule | Course Schedule | Medium | 50.8% | 62.5% |
| 209 | https://leetcode.com/problems/minimum-size-subarray-sum | Minimum Size Subarray Sum | Medium | 51.0% | 37.5% |
| 210 | https://leetcode.com/problems/course-schedule-ii | Course Schedule II | Medium | 55.0% | 62.5% |
| 215 | https://leetcode.com/problems/kth-largest-element-in-an-array | Kth Largest Element in an Array | Medium | 68.8% | 50.0% |
| 221 | https://leetcode.com/problems/maximal-square | Maximal Square | Medium | 50.0% | 37.5% |
| 224 | https://leetcode.com/problems/basic-calculator | Basic Calculator | Hard | 46.5% | 37.5% |
| 226 | https://leetcode.com/problems/invert-binary-tree | Invert Binary Tree | Easy | 79.8% | 25.0% |
| 230 | https://leetcode.com/problems/kth-smallest-element-in-a-bst | Kth Smallest Element in a BST | Medium | 76.5% | 50.0% |
| 9 | https://leetcode.com/problems/palindrome-number | Palindrome Number | Easy | 60.2% | 37.5% |
| 234 | https://leetcode.com/problems/palindrome-linked-list | Palindrome Linked List | Easy | 57.4% | 37.5% |
| 236 | https://leetcode.com/problems/lowest-common-ancestor-of-a-binary-tree | Lowest Common Ancestor of a Binary Tree | Medium | 68.7% | 62.5% |
| 237 | https://leetcode.com/problems/delete-node-in-a-linked-list | Delete Node in a Linked List | Medium | 83.6% | 37.5% |
| 239 | https://leetcode.com/problems/sliding-window-maximum | Sliding Window Maximum | Hard | 48.4% | 75.0% |
| 240 | https://leetcode.com/problems/search-a-2d-matrix-ii | Search a 2D Matrix II | Medium | 56.8% | 50.0% |
| 242 | https://leetcode.com/problems/valid-anagram | Valid Anagram | Easy | 67.8% | 62.5% |
| 238 | https://leetcode.com/problems/product-of-array-except-self | Product of Array Except Self | Medium | 68.6% | 50.0% |
| 252 | https://leetcode.com/problems/meeting-rooms | Meeting Rooms | Easy | 59.3% | 50.0% |
| 253 | https://leetcode.com/problems/meeting-rooms-ii | Meeting Rooms II | Medium | 52.5% | 75.0% |
| 269 | https://leetcode.com/problems/alien-dictionary | Alien Dictionary | Hard | 37.1% | 37.5% |
| 270 | https://leetcode.com/problems/closest-binary-search-tree-value | Closest Binary Search Tree Value | Easy | 49.3% | 25.0% |
| 273 | https://leetcode.com/problems/integer-to-english-words | Integer to English Words | Hard | 34.8% | 37.5% |
| 283 | https://leetcode.com/problems/move-zeroes | Move Zeroes | Easy | 63.5% | 50.0% |
| 2251 | https://leetcode.com/problems/number-of-flowers-in-full-bloom | Number of Flowers in Full Bloom | Hard | 57.7% | 37.5% |
| 287 | https://leetcode.com/problems/find-the-duplicate-number | Find the Duplicate Number | Medium | 64.0% | 37.5% |
| 295 | https://leetcode.com/problems/find-median-from-data-stream | Find Median from Data Stream | Hard | 54.2% | 62.5% |
| 300 | https://leetcode.com/problems/longest-increasing-subsequence | Longest Increasing Subsequence | Medium | 59.0% | 50.0% |
| 316 | https://leetcode.com/problems/remove-duplicate-letters | Remove Duplicate Letters | Medium | 52.8% | 25.0% |
| 322 | https://leetcode.com/problems/coin-change | Coin Change | Medium | 47.9% | 50.0% |
| 345 | https://leetcode.com/problems/reverse-vowels-of-a-string | Reverse Vowels of a String | Easy | 60.6% | 37.5% |
| 347 | https://leetcode.com/problems/top-k-frequent-elements | Top K Frequent Elements | Medium | 65.8% | 75.0% |
| 69 | https://leetcode.com/problems/sqrtx | Sqrt(x) | Easy | 41.4% | 37.5% |
| 359 | https://leetcode.com/problems/logger-rate-limiter | Logger Rate Limiter | Easy | 76.8% | 62.5% |
| 373 | https://leetcode.com/problems/find-k-pairs-with-smallest-sums | Find K Pairs with Smallest Sums | Medium | 41.5% | 37.5% |
| 74 | https://leetcode.com/problems/search-a-2d-matrix | Search a 2D Matrix | Medium | 53.5% | 50.0% |
| 380 | https://leetcode.com/problems/insert-delete-getrandom-o1 | Insert Delete GetRandom O(1) | Medium | 55.3% | 50.0% |
| 387 | https://leetcode.com/problems/first-unique-character-in-a-string | First Unique Character in a String | Easy | 65.0% | 37.5% |
| 394 | https://leetcode.com/problems/decode-string | Decode String | Medium | 62.2% | 62.5% |
| 409 | https://leetcode.com/problems/longest-palindrome | Longest Palindrome | Easy | 55.8% | 25.0% |
| 412 | https://leetcode.com/problems/fizz-buzz | Fizz Buzz | Easy | 75.2% | 25.0% |
| 415 | https://leetcode.com/problems/add-strings | Add Strings | Easy | 52.1% | 37.5% |
| 443 | https://leetcode.com/problems/string-compression | String Compression | Medium | 59.5% | 50.0% |
| 450 | https://leetcode.com/problems/delete-node-in-a-bst | Delete Node in a BST | Medium | 54.2% | 62.5% |
| 460 | https://leetcode.com/problems/lfu-cache | LFU Cache | Hard | 48.6% | 62.5% |
| 463 | https://leetcode.com/problems/island-perimeter | Island Perimeter | Easy | 74.2% | 37.5% |
| 468 | https://leetcode.com/problems/validate-ip-address | Validate IP Address | Medium | 28.2% | 37.5% |
| 19 | https://leetcode.com/problems/remove-nth-node-from-end-of-list | Remove Nth Node From End of List | Medium | 51.0% | 25.0% |
| 20 | https://leetcode.com/problems/valid-parentheses | Valid Parentheses | Easy | 43.7% | 75.0% |
| 2472 | https://leetcode.com/problems/maximum-number-of-non-overlapping-palindrome-substrings | Maximum Number of Non-overlapping Palindrome Substrings | Hard | 43.3% | 37.5% |
| 2466 | https://leetcode.com/problems/count-ways-to-build-good-strings | Count Ways To Build Good Strings | Medium | 59.0% | 50.0% |
| 102 | https://leetcode.com/problems/binary-tree-level-order-traversal | Binary Tree Level Order Traversal | Medium | 72.2% | 50.0% |
| 525 | https://leetcode.com/problems/contiguous-array | Contiguous Array | Medium | 50.8% | 50.0% |
| 540 | https://leetcode.com/problems/single-element-in-a-sorted-array | Single Element in a Sorted Array | Medium | 59.2% | 50.0% |
| 543 | https://leetcode.com/problems/diameter-of-binary-tree | Diameter of Binary Tree | Easy | 65.0% | 50.0% |
| 2506 | https://leetcode.com/problems/count-pairs-of-similar-strings | Count Pairs Of Similar Strings | Easy | 73.5% | 62.5% |
| 560 | https://leetcode.com/problems/subarray-sum-equals-k | Subarray Sum Equals K | Medium | 46.8% | 50.0% |
| 588 | https://leetcode.com/problems/design-in-memory-file-system | Design In-Memory File System | Hard | 48.4% | 50.0% |
| 2580 | https://leetcode.com/problems/count-ways-to-group-overlapping-ranges | Count Ways to Group Overlapping Ranges | Medium | 39.0% | 50.0% |
| 621 | https://leetcode.com/problems/task-scheduler | Task Scheduler | Medium | 62.6% | 50.0% |
| 2549 | https://leetcode.com/problems/count-distinct-numbers-on-board | Count Distinct Numbers on Board | Easy | 61.7% | 50.0% |
| 2561 | https://leetcode.com/problems/rearranging-fruits | Rearranging Fruits | Hard | 57.5% | 37.5% |
| 692 | https://leetcode.com/problems/top-k-frequent-words | Top K Frequent Words | Medium | 60.0% | 50.0% |
| 694 | https://leetcode.com/problems/number-of-distinct-islands | Number of Distinct Islands | Medium | 62.7% | 50.0% |
| 696 | https://leetcode.com/problems/count-binary-substrings | Count Binary Substrings | Easy | 70.2% | 37.5% |
| 697 | https://leetcode.com/problems/degree-of-an-array | Degree of an Array | Easy | 58.2% | 50.0% |
| 139 | https://leetcode.com/problems/word-break | Word Break | Medium | 49.1% | 37.5% |
| 735 | https://leetcode.com/problems/asteroid-collision | Asteroid Collision | Medium | 47.1% | 75.0% |
| 739 | https://leetcode.com/problems/daily-temperatures | Daily Temperatures | Medium | 68.3% | 37.5% |
| 767 | https://leetcode.com/problems/reorganize-string | Reorganize String | Medium | 56.8% | 50.0% |
| 706 | https://leetcode.com/problems/design-hashmap | Design HashMap | Easy | 66.4% | 37.5% |
| 622 | https://leetcode.com/problems/design-circular-queue | Design Circular Queue | Medium | 54.0% | 37.5% |
| 844 | https://leetcode.com/problems/backspace-string-compare | Backspace String Compare | Easy | 49.8% | 37.5% |
| 2836 | https://leetcode.com/problems/maximize-value-of-function-in-a-ball-passing-game | Maximize Value of Function in a Ball Passing Game | Hard | 30.4% | 62.5% |
| 968 | https://leetcode.com/problems/binary-tree-cameras | Binary Tree Cameras | Hard | 47.6% | 37.5% |
| 969 | https://leetcode.com/problems/pancake-sorting | Pancake Sorting | Medium | 71.7% | 25.0% |
| 973 | https://leetcode.com/problems/k-closest-points-to-origin | K Closest Points to Origin | Medium | 68.7% | 25.0% |
| 981 | https://leetcode.com/problems/time-based-key-value-store | Time Based Key-Value Store | Medium | 49.7% | 50.0% |
| 987 | https://leetcode.com/problems/vertical-order-traversal-of-a-binary-tree | Vertical Order Traversal of a Binary Tree | Hard | 53.2% | 50.0% |
| 992 | https://leetcode.com/problems/subarrays-with-k-different-integers | Subarrays with K Different Integers | Hard | 67.5% | 37.5% |
| 994 | https://leetcode.com/problems/rotting-oranges | Rotting Oranges | Medium | 58.1% | 62.5% |
| 1004 | https://leetcode.com/problems/max-consecutive-ones-iii | Max Consecutive Ones III | Medium | 67.3% | 25.0% |
| 1010 | https://leetcode.com/problems/pairs-of-songs-with-total-durations-divisible-by-60 | Pairs of Songs With Total Durations Divisible by 60 | Medium | 53.4% | 62.5% |
| 1011 | https://leetcode.com/problems/capacity-to-ship-packages-within-d-days | Capacity To Ship Packages Within D Days | Medium | 73.5% | 50.0% |
| 1166 | https://leetcode.com/problems/design-file-system | Design File System | Medium | 65.1% | 37.5% |
| 1047 | https://leetcode.com/problems/remove-all-adjacent-duplicates-in-string | Remove All Adjacent Duplicates In String | Easy | 72.8% | 37.5% |
| 3012 | https://leetcode.com/problems/minimize-length-of-array-using-operations | Minimize Length of Array Using Operations | Medium | 35.7% | 50.0% |
| 1287 | https://leetcode.com/problems/element-appearing-more-than-25-in-sorted-array | Element Appearing More Than 25% In Sorted Array | Easy | 61.1% | 25.0% |
| 3015 | https://leetcode.com/problems/count-the-number-of-houses-at-a-certain-distance-i | Count the Number of Houses at a Certain Distance I | Medium | 57.3% | 50.0% |
| 1143 | https://leetcode.com/problems/longest-common-subsequence | Longest Common Subsequence | Medium | 58.9% | 37.5% |
| 3017 | https://leetcode.com/problems/count-the-number-of-houses-at-a-certain-distance-ii | Count the Number of Houses at a Certain Distance II | Hard | 23.6% | 50.0% |
| 1209 | https://leetcode.com/problems/remove-all-adjacent-duplicates-in-string-ii | Remove All Adjacent Duplicates in String II | Medium | 60.9% | 62.5% |
| 1235 | https://leetcode.com/problems/maximum-profit-in-job-scheduling | Maximum Profit in Job Scheduling | Hard | 54.6% | 50.0% |
| 1268 | https://leetcode.com/problems/search-suggestions-system | Search Suggestions System | Medium | 65.2% | 50.0% |
| 2263 | https://leetcode.com/problems/make-array-non-decreasing-or-non-increasing | Make Array Non-decreasing or Non-increasing | Hard | 65.6% | 37.5% |
| 2192 | https://leetcode.com/problems/all-ancestors-of-a-node-in-a-directed-acyclic-graph | All Ancestors of a Node in a Directed Acyclic Graph | Medium | 62.1% | 50.0% |
| 1347 | https://leetcode.com/problems/minimum-number-of-steps-to-make-two-strings-anagram | Minimum Number of Steps to Make Two Strings Anagram | Medium | 82.5% | 37.5% |
| 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% |
| 1380 | https://leetcode.com/problems/lucky-numbers-in-a-matrix | Lucky Numbers in a Matrix | Easy | 80.0% | 50.0% |
| 1410 | https://leetcode.com/problems/html-entity-parser | HTML Entity Parser | Medium | 50.3% | 50.0% |
| 1537 | https://leetcode.com/problems/get-the-maximum-score | Get the Maximum Score | Hard | 40.8% | 25.0% |
| 1611 | https://leetcode.com/problems/minimum-one-bit-operations-to-make-integers-zero | Minimum One Bit Operations to Make Integers Zero | Hard | 78.4% | 62.5% |
| 1636 | https://leetcode.com/problems/sort-array-by-increasing-frequency | Sort Array by Increasing Frequency | Easy | 80.7% | 37.5% |
| 378 | https://leetcode.com/problems/kth-smallest-element-in-a-sorted-matrix | Kth Smallest Element in a Sorted Matrix | Medium | 64.4% | 37.5% |
| 1797 | https://leetcode.com/problems/design-authentication-manager | Design Authentication Manager | Medium | 58.4% | 62.5% |
| 1839 | https://leetcode.com/problems/longest-substring-of-all-vowels-in-order | Longest Substring Of All Vowels in Order | Medium | 51.5% | 37.5% |
| 328 | https://leetcode.com/problems/odd-even-linked-list | Odd Even Linked List | Medium | 62.3% | 25.0% |
| 695 | https://leetcode.com/problems/max-area-of-island | Max Area of Island | Medium | 73.8% | 37.5% |
| 1200 | https://leetcode.com/problems/minimum-absolute-difference | Minimum Absolute Difference | Easy | 75.0% | 62.5% |
| 1046 | https://leetcode.com/problems/last-stone-weight | Last Stone Weight | Easy | 66.3% | 37.5% |
| 96 | https://leetcode.com/problems/unique-binary-search-trees | Unique Binary Search Trees | Medium | 63.3% | 50.0% |
| 115 | https://leetcode.com/problems/distinct-subsequences | Distinct Subsequences | Hard | 51.5% | 37.5% |
| 435 | https://leetcode.com/problems/non-overlapping-intervals | Non-overlapping Intervals | Medium | 56.7% | 37.5% |
| 2151 | https://leetcode.com/problems/maximum-good-people-based-on-statements | Maximum Good People Based on Statements | Hard | 52.2% | 37.5% |
| 912 | https://leetcode.com/problems/sort-an-array | Sort an Array | Medium | 55.9% | 37.5% |
| 114 | https://leetcode.com/problems/flatten-binary-tree-to-linked-list | Flatten Binary Tree to Linked List | Medium | 70.2% | 37.5% |
| 1721 | https://leetcode.com/problems/swapping-nodes-in-a-linked-list | Swapping Nodes in a Linked List | Medium | 69.2% | 25.0% |
| 716 | https://leetcode.com/problems/max-stack | Max Stack | Hard | 45.9% | 25.0% |
| 217 | https://leetcode.com/problems/contains-duplicate | Contains Duplicate | Easy | 64.1% | 37.5% |
| 1251 | https://leetcode.com/problems/average-selling-price | Average Selling Price | Easy | 37.1% | 25.0% |
| 582 | https://leetcode.com/problems/kill-process | Kill Process | Medium | 70.3% | 37.5% |
| 151 | https://leetcode.com/problems/reverse-words-in-a-string | Reverse Words in a String | Medium | 55.5% | 37.5% |
| 1823 | https://leetcode.com/problems/find-the-winner-of-the-circular-game | Find the Winner of the Circular Game | Medium | 82.2% | 37.5% |
| 1507 | https://leetcode.com/problems/reformat-date | Reformat Date | Easy | 68.2% | 37.5% |
| 505 | https://leetcode.com/problems/the-maze-ii | The Maze II | Medium | 55.0% | 25.0% |
| 496 | https://leetcode.com/problems/next-greater-element-i | Next Greater Element I | Easy | 75.7% | 37.5% |
| 2291 | https://leetcode.com/problems/maximum-profit-from-trading-stocks | Maximum Profit From Trading Stocks | Medium | 48.0% | 50.0% |
| 198 | https://leetcode.com/problems/house-robber | House Robber | Medium | 52.9% | 37.5% |
| 567 | https://leetcode.com/problems/permutation-in-string | Permutation in String | Medium | 48.4% | 37.5% |
| 1002 | https://leetcode.com/problems/find-common-characters | Find Common Characters | Easy | 74.6% | 25.0% |
| 704 | https://leetcode.com/problems/binary-search | Binary Search | Easy | 60.5% | 25.0% |
| 82 | https://leetcode.com/problems/remove-duplicates-from-sorted-list-ii | Remove Duplicates from Sorted List II | Medium | 51.3% | 37.5% |
| 2062 | https://leetcode.com/problems/count-vowel-substrings-of-a-string | Count Vowel Substrings of a String | Easy | 72.8% | 37.5% |
| 1547 | https://leetcode.com/problems/minimum-cost-to-cut-a-stick | Minimum Cost to Cut a Stick | Hard | 62.8% | 25.0% |
| 153 | https://leetcode.com/problems/find-minimum-in-rotated-sorted-array | Find Minimum in Rotated Sorted Array | Medium | 53.8% | 37.5% |
| 227 | https://leetcode.com/problems/basic-calculator-ii | Basic Calculator II | Medium | 46.6% | 37.5% |
| 653 | https://leetcode.com/problems/two-sum-iv-input-is-a-bst | Two Sum IV - Input is a BST | Easy | 63.0% | 25.0% |
| 125 | https://leetcode.com/problems/valid-palindrome | Valid Palindrome | Easy | 52.8% | 50.0% |
| 31 | https://leetcode.com/problems/next-permutation | Next Permutation | Medium | 44.7% | 37.5% |
| 410 | https://leetcode.com/problems/split-array-largest-sum | Split Array Largest Sum | Hard | 59.8% | 25.0% |
| 314 | https://leetcode.com/problems/binary-tree-vertical-order-traversal | Binary Tree Vertical Order Traversal | Medium | 57.7% | 25.0% |
| 407 | https://leetcode.com/problems/trapping-rain-water-ii | Trapping Rain Water II | Hard | 64.0% | 25.0% |
| 71 | https://leetcode.com/problems/simplify-path | Simplify Path | Medium | 50.0% | 50.0% |
| 78 | https://leetcode.com/problems/subsets | Subsets | Medium | 82.0% | 25.0% |
| 448 | https://leetcode.com/problems/find-all-numbers-disappeared-in-an-array | Find All Numbers Disappeared in an Array | Easy | 63.7% | 25.0% |
| 166 | https://leetcode.com/problems/fraction-to-recurring-decimal | Fraction to Recurring Decimal | Medium | 30.5% | 25.0% |
| 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% | 25.0% |
| 327 | https://leetcode.com/problems/count-of-range-sum | Count of Range Sum | Hard | 38.3% | 25.0% |
| 72 | https://leetcode.com/problems/edit-distance | Edit Distance | Medium | 60.1% | 25.0% |
| 2208 | https://leetcode.com/problems/minimum-operations-to-halve-array-sum | Minimum Operations to Halve Array Sum | Medium | 50.0% | 25.0% |
| 1283 | https://leetcode.com/problems/find-the-smallest-divisor-given-a-threshold | Find the Smallest Divisor Given a Threshold | Medium | 65.4% | 37.5% |
| 340 | https://leetcode.com/problems/longest-substring-with-at-most-k-distinct-characters | Longest Substring with At Most K Distinct Characters | Medium | 49.9% | 37.5% |
| 647 | https://leetcode.com/problems/palindromic-substrings | Palindromic Substrings | Medium | 72.5% | 50.0% |
| 1267 | https://leetcode.com/problems/count-servers-that-communicate | Count Servers that Communicate | Medium | 73.5% | 37.5% |
| 2303 | https://leetcode.com/problems/calculate-amount-paid-in-taxes | Calculate Amount Paid in Taxes | Easy | 69.0% | 37.5% |
| 51 | https://leetcode.com/problems/n-queens | N-Queens | Hard | 74.9% | 50.0% |
| 827 | https://leetcode.com/problems/making-a-large-island | Making A Large Island | Hard | 56.3% | 25.0% |
| 729 | https://leetcode.com/problems/my-calendar-i | My Calendar I | Medium | 58.2% | 25.0% |
| 3438 | https://leetcode.com/problems/find-valid-pair-of-adjacent-digits-in-string | Find Valid Pair of Adjacent Digits in String | Easy | 60.6% | 62.5% |
| 1290 | https://leetcode.com/problems/convert-binary-number-in-a-linked-list-to-integer | Convert Binary Number in a Linked List to Integer | Easy | 82.3% | 37.5% |
| 863 | https://leetcode.com/problems/all-nodes-distance-k-in-binary-tree | All Nodes Distance K in Binary Tree | Medium | 67.4% | 37.5% |
| 319 | https://leetcode.com/problems/bulb-switcher | Bulb Switcher | Medium | 55.5% | 25.0% |
| 120 | https://leetcode.com/problems/triangle | Triangle | Medium | 59.8% | 37.5% |
| 1079 | https://leetcode.com/problems/letter-tile-possibilities | Letter Tile Possibilities | Medium | 83.5% | 25.0% |
| 1249 | https://leetcode.com/problems/minimum-remove-to-make-valid-parentheses | Minimum Remove to Make Valid Parentheses | Medium | 71.3% | 37.5% |
| 2592 | https://leetcode.com/problems/maximize-greatness-of-an-array | Maximize Greatness of an Array | Medium | 61.2% | 25.0% |
| 437 | https://leetcode.com/problems/path-sum-iii | Path Sum III | Medium | 46.3% | 25.0% |
| 142 | https://leetcode.com/problems/linked-list-cycle-ii | Linked List Cycle II | Medium | 57.2% | 25.0% |
| 297 | https://leetcode.com/problems/serialize-and-deserialize-binary-tree | Serialize and Deserialize Binary Tree | Hard | 60.3% | 25.0% |
| 1669 | https://leetcode.com/problems/merge-in-between-linked-lists | Merge In Between Linked Lists | Medium | 82.8% | 37.5% |
| 713 | https://leetcode.com/problems/subarray-product-less-than-k | Subarray Product Less Than K | Medium | 53.9% | 37.5% |
| 1944 | https://leetcode.com/problems/number-of-visible-people-in-a-queue | Number of Visible People in a Queue | Hard | 72.3% | 50.0% |
| 208 | https://leetcode.com/problems/implement-trie-prefix-tree | Implement Trie (Prefix Tree) | Medium | 69.2% | 50.0% |
| 2226 | https://leetcode.com/problems/maximum-candies-allocated-to-k-children | Maximum Candies Allocated to K Children | Medium | 49.9% | 25.0% |
| 605 | https://leetcode.com/problems/can-place-flowers | Can Place Flowers | Easy | 29.0% | 25.0% |
| 442 | https://leetcode.com/problems/find-all-duplicates-in-an-array | Find All Duplicates in an Array | Medium | 76.8% | 25.0% |
| 772 | https://leetcode.com/problems/basic-calculator-iii | Basic Calculator III | Hard | 53.1% | 25.0% |
| 2622 | https://leetcode.com/problems/cache-with-time-limit | Cache With Time Limit | Medium | 76.0% | 25.0% |
| 2127 | https://leetcode.com/problems/maximum-employees-to-be-invited-to-a-meeting | Maximum Employees to Be Invited to a Meeting | Hard | 61.8% | 25.0% |
| 755 | https://leetcode.com/problems/pour-water | Pour Water | Medium | 48.5% | 50.0% |
| 1029 | https://leetcode.com/problems/two-city-scheduling | Two City Scheduling | Medium | 68.3% | 25.0% |
| 2055 | https://leetcode.com/problems/plates-between-candles | Plates Between Candles | Medium | 47.3% | 25.0% |
| 875 | https://leetcode.com/problems/koko-eating-bananas | Koko Eating Bananas | Medium | 49.7% | 50.0% |
| 203 | https://leetcode.com/problems/remove-linked-list-elements | Remove Linked List Elements | Easy | 53.8% | 25.0% |
| 321 | https://leetcode.com/problems/create-maximum-number | Create Maximum Number | Hard | 34.6% | 25.0% |
| 339 | https://leetcode.com/problems/nested-list-weight-sum | Nested List Weight Sum | Medium | 85.9% | 25.0% |
| 2448 | https://leetcode.com/problems/minimum-cost-to-make-array-equal | Minimum Cost to Make Array Equal | Hard | 46.7% | 37.5% |
| 133 | https://leetcode.com/problems/clone-graph | Clone Graph | Medium | 64.7% | 37.5% |
| 38 | https://leetcode.com/problems/count-and-say | Count and Say | Medium | 62.3% | 25.0% |
| 7 | https://leetcode.com/problems/reverse-integer | Reverse Integer | Medium | 31.5% | 37.5% |
| 301 | https://leetcode.com/problems/remove-invalid-parentheses | Remove Invalid Parentheses | Hard | 49.8% | 25.0% |
| 127 | https://leetcode.com/problems/word-ladder | Word Ladder | Hard | 44.9% | 50.0% |
| 1824 | https://leetcode.com/problems/minimum-sideway-jumps | Minimum Sideway Jumps | Medium | 51.5% | 25.0% |
| 2008 | https://leetcode.com/problems/maximum-earnings-from-taxi | Maximum Earnings From Taxi | Medium | 46.2% | 37.5% |
| 368 | https://leetcode.com/problems/largest-divisible-subset | Largest Divisible Subset | Medium | 49.4% | 25.0% |
| 212 | https://leetcode.com/problems/word-search-ii | Word Search II | Hard | 38.1% | 25.0% |
| 104 | https://leetcode.com/problems/maximum-depth-of-binary-tree | Maximum Depth of Binary Tree | Easy | 77.9% | 37.5% |
| 841 | https://leetcode.com/problems/keys-and-rooms | Keys and Rooms | Medium | 75.5% | 37.5% |
| 43 | https://leetcode.com/problems/multiply-strings | Multiply Strings | Medium | 43.5% | 25.0% |
| 29 | https://leetcode.com/problems/divide-two-integers | Divide Two Integers | Medium | 19.4% | 37.5% |
| 2743 | https://leetcode.com/problems/count-substrings-without-repeating-character | Count Substrings Without Repeating Character | Medium | 76.1% | 25.0% |
| 311 | https://leetcode.com/problems/sparse-matrix-multiplication | Sparse Matrix Multiplication | Medium | 69.2% | 25.0% |
| 556 | https://leetcode.com/problems/next-greater-element-iii | Next Greater Element III | Medium | 35.1% | 25.0% |
| 1700 | https://leetcode.com/problems/number-of-students-unable-to-eat-lunch | Number of Students Unable to Eat Lunch | Easy | 79.3% | 25.0% |
| 24 | https://leetcode.com/problems/swap-nodes-in-pairs | Swap Nodes in Pairs | Medium | 68.9% | 25.0% |
| 498 | https://leetcode.com/problems/diagonal-traverse | Diagonal Traverse | Medium | 67.0% | 37.5% |
| 402 | https://leetcode.com/problems/remove-k-digits | Remove K Digits | Medium | 36.4% | 37.5% |
| 176 | https://leetcode.com/problems/second-highest-salary | Second Highest Salary | Medium | 46.3% | 37.5% |
| 2439 | https://leetcode.com/problems/minimize-maximum-of-array | Minimize Maximum of Array | Medium | 46.5% | 25.0% |
| 796 | https://leetcode.com/problems/rotate-string | Rotate String | Easy | 65.1% | 37.5% |
| 1071 | https://leetcode.com/problems/greatest-common-divisor-of-strings | Greatest Common Divisor of Strings | Easy | 53.4% | 25.0% |
| 130 | https://leetcode.com/problems/surrounded-regions | Surrounded Regions | Medium | 44.7% | 37.5% |
| 135 | https://leetcode.com/problems/candy | Candy | Hard | 47.9% | 37.5% |
| 2954 | https://leetcode.com/problems/count-the-number-of-infection-sequences | Count the Number of Infection Sequences | Hard | 37.2% | 50.0% |
| 1190 | https://leetcode.com/problems/reverse-substrings-between-each-pair-of-parentheses | Reverse Substrings Between Each Pair of Parentheses | Medium | 71.9% | 37.5% |
| 36 | https://leetcode.com/problems/valid-sudoku | Valid Sudoku | Medium | 64.1% | 25.0% |
| 259 | https://leetcode.com/problems/3sum-smaller | 3Sum Smaller | Medium | 51.3% | 25.0% |
| 3366 | https://leetcode.com/problems/minimum-array-sum | Minimum Array Sum | Medium | 30.9% | 37.5% |
| 70 | https://leetcode.com/problems/climbing-stairs | Climbing Stairs | Easy | 53.9% | 37.5% |
| 1768 | https://leetcode.com/problems/merge-strings-alternately | Merge Strings Alternately | Easy | 82.1% | 25.0% |
| 1248 | https://leetcode.com/problems/count-number-of-nice-subarrays | Count Number of Nice Subarrays | Medium | 74.8% | 25.0% |
| 150 | https://leetcode.com/problems/evaluate-reverse-polish-notation | Evaluate Reverse Polish Notation | Medium | 57.0% | 25.0% |
| 2181 | https://leetcode.com/problems/merge-nodes-in-between-zeros | Merge Nodes in Between Zeros | Medium | 89.7% | 25.0% |
| 403 | https://leetcode.com/problems/frog-jump | Frog Jump | Hard | 47.1% | 25.0% |
| 268 | https://leetcode.com/problems/missing-number | Missing Number | Easy | 71.6% | 25.0% |
| 92 | https://leetcode.com/problems/reverse-linked-list-ii | Reverse Linked List II | Medium | 51.0% | 37.5% |
| 271 | https://leetcode.com/problems/encode-and-decode-strings | Encode and Decode Strings | Medium | 51.2% | 25.0% |
| 204 | https://leetcode.com/problems/count-primes | Count Primes | Medium | 35.7% | 25.0% |
| 1293 | https://leetcode.com/problems/shortest-path-in-a-grid-with-obstacles-elimination | Shortest Path in a Grid with Obstacles Elimination | Hard | 46.1% | 25.0% |
| 1312 | https://leetcode.com/problems/minimum-insertion-steps-to-make-a-string-palindrome | Minimum Insertion Steps to Make a String Palindrome | Hard | 73.6% | 37.5% |
| 211 | https://leetcode.com/problems/design-add-and-search-words-data-structure | Design Add and Search Words Data Structure | Medium | 48.1% | 25.0% |
| 545 | https://leetcode.com/problems/boundary-of-binary-tree | Boundary of Binary Tree | Medium | 47.9% | 25.0% |
| 365 | https://leetcode.com/problems/water-and-jug-problem | Water and Jug Problem | Medium | 44.8% | 25.0% |
| 845 | https://leetcode.com/problems/longest-mountain-in-array | Longest Mountain in Array | Medium | 41.8% | 50.0% |
| 2402 | https://leetcode.com/problems/meeting-rooms-iii | Meeting Rooms III | Hard | 51.7% | 37.5% |
| 2087 | https://leetcode.com/problems/minimum-cost-homecoming-of-a-robot-in-a-grid | Minimum Cost Homecoming of a Robot in a Grid | Medium | 51.6% | 25.0% |
| 1309 | https://leetcode.com/problems/decrypt-string-from-alphabet-to-integer-mapping | Decrypt String from Alphabet to Integer Mapping | Easy | 80.5% | 37.5% |
| 829 | https://leetcode.com/problems/consecutive-numbers-sum | Consecutive Numbers Sum | Hard | 42.6% | 37.5% |
| 1492 | https://leetcode.com/problems/the-kth-factor-of-n | The kth Factor of n | Medium | 70.2% | 25.0% |
| 872 | https://leetcode.com/problems/leaf-similar-trees | Leaf-Similar Trees | Easy | 70.2% | 25.0% |
| 143 | https://leetcode.com/problems/reorder-list | Reorder List | Medium | 64.6% | 25.0% |
| 2047 | https://leetcode.com/problems/number-of-valid-words-in-a-sentence | Number of Valid Words in a Sentence | Easy | 31.0% | 25.0% |
| 1254 | https://leetcode.com/problems/number-of-closed-islands | Number of Closed Islands | Medium | 67.0% | 37.5% |
| 920 | https://leetcode.com/problems/number-of-music-playlists | Number of Music Playlists | Hard | 60.0% | 25.0% |
| 1526 | https://leetcode.com/problems/minimum-number-of-increments-on-subarrays-to-form-a-target-array | Minimum Number of Increments on Subarrays to Form a Target Array | Hard | 78.1% | 25.0% |
| 2603 | https://leetcode.com/problems/collect-coins-in-a-tree | Collect Coins in a Tree | Hard | 39.6% | 25.0% |
| 1539 | https://leetcode.com/problems/kth-missing-positive-number | Kth Missing Positive Number | Easy | 63.2% | 25.0% |
| 325 | https://leetcode.com/problems/maximum-size-subarray-sum-equals-k | Maximum Size Subarray Sum Equals k | Medium | 50.8% | 25.0% |
| 445 | https://leetcode.com/problems/add-two-numbers-ii | Add Two Numbers II | Medium | 62.4% | 37.5% |
| 426 | https://leetcode.com/problems/convert-binary-search-tree-to-sorted-doubly-linked-list | Convert Binary Search Tree to Sorted Doubly Linked List | Medium | 65.6% | 25.0% |
| 1095 | https://leetcode.com/problems/find-in-mountain-array | Find in Mountain Array | Hard | 41.1% | 25.0% |
| 366 | https://leetcode.com/problems/find-leaves-of-binary-tree | Find Leaves of Binary Tree | Medium | 81.3% | 37.5% |
| 260 | https://leetcode.com/problems/single-number-iii | Single Number III | Medium | 70.4% | 25.0% |
| 84 | https://leetcode.com/problems/largest-rectangle-in-histogram | Largest Rectangle in Histogram | Hard | 49.3% | 25.0% |
| 338 | https://leetcode.com/problems/counting-bits | Counting Bits | Easy | 80.4% | 25.0% |
| 2296 | https://leetcode.com/problems/design-a-text-editor | Design a Text Editor | Hard | 49.9% | 25.0% |
| 700 | https://leetcode.com/problems/search-in-a-binary-search-tree | Search in a Binary Search Tree | Easy | 82.5% | 25.0% |
| 2422 | https://leetcode.com/problems/merge-operations-to-turn-array-into-a-palindrome | Merge Operations to Turn Array Into a Palindrome | Medium | 68.9% | 25.0% |
| 2858 | https://leetcode.com/problems/minimum-edge-reversals-so-every-node-is-reachable | Minimum Edge Reversals So Every Node Is Reachable | Hard | 57.2% | 25.0% |
| 44 | https://leetcode.com/problems/wildcard-matching | Wildcard Matching | Hard | 31.3% | 25.0% |
| 1481 | https://leetcode.com/problems/least-number-of-unique-integers-after-k-removals | Least Number of Unique Integers after K Removals | Medium | 63.7% | 25.0% |
| 3799 | https://leetcode.com/problems/word-squares-ii | Word Squares II | Medium | 54.8% | 50.0% |
| 1169 | https://leetcode.com/problems/invalid-transactions | Invalid Transactions | Medium | 32.1% | 25.0% |
| 107 | https://leetcode.com/problems/binary-tree-level-order-traversal-ii | Binary Tree Level Order Traversal II | Medium | 67.6% | 25.0% |
| 684 | https://leetcode.com/problems/redundant-connection | Redundant Connection | Medium | 67.2% | 25.0% |
| 1197 | https://leetcode.com/problems/minimum-knight-moves | Minimum Knight Moves | Medium | 41.7% | 25.0% |
| 2204 | https://leetcode.com/problems/distance-to-a-cycle-in-undirected-graph | Distance to a Cycle in Undirected Graph | Hard | 73.6% | 37.5% |
| 815 | https://leetcode.com/problems/bus-routes | Bus Routes | Hard | 47.1% | 25.0% |
| 3650 | https://leetcode.com/problems/minimum-cost-path-with-edge-reversals | Minimum Cost Path with Edge Reversals | Medium | 61.8% | 25.0% |
| 1488 | https://leetcode.com/problems/avoid-flood-in-the-city | Avoid Flood in The City | Medium | 39.0% | 25.0% |
| 122 | https://leetcode.com/problems/best-time-to-buy-and-sell-stock-ii | Best Time to Buy and Sell Stock II | Medium | 70.7% | 25.0% |
| 752 | https://leetcode.com/problems/open-the-lock | Open the Lock | Medium | 61.1% | 25.0% |
| 202 | https://leetcode.com/problems/happy-number | Happy Number | Easy | 59.2% | 25.0% |