ID,Title,Acceptance,Difficulty,Frequency,Leetcode Question Link
146,LRU Cache,33.2%,Medium,0.1499900812285872, https://leetcode.com/problems/lru-cache
37,Sudoku Solver,43.6%,Hard,0.13242170014920152, https://leetcode.com/problems/sudoku-solver
221,Maximal Square,37.7%,Medium,0.11485331906981584, https://leetcode.com/problems/maximal-square
609,Find Duplicate File in System,59.5%,Medium,0.09898183354885093, https://leetcode.com/problems/find-duplicate-file-in-system
20,Valid Parentheses,39.0%,Easy,0.09286263438126167, https://leetcode.com/problems/valid-parentheses
1048,Longest String Chain,54.7%,Medium,0.07529425330187599, https://leetcode.com/problems/longest-string-chain
49,Group Anagrams,56.9%,Medium,0.07434615245733686, https://leetcode.com/problems/group-anagrams
697,Degree of an Array,53.8%,Easy,0.07117627846789498, https://leetcode.com/problems/degree-of-an-array
460,LFU Cache,34.2%,Hard,0.06836374280939023, https://leetcode.com/problems/lfu-cache
706,Design HashMap,61.3%,Easy,0.0683442674369718, https://leetcode.com/problems/design-hashmap
1328,Break a Palindrome,43.3%,Medium,0.05910139227591337, https://leetcode.com/problems/break-a-palindrome
829,Consecutive Numbers Sum,37.5%,Hard,0.05341723749698583, https://leetcode.com/problems/consecutive-numbers-sum
85,Maximal Rectangle,37.7%,Hard,0.05229949940284891, https://leetcode.com/problems/maximal-rectangle
186,Reverse Words in a String II,43.3%,Medium,0.05064373281875492, https://leetcode.com/problems/reverse-words-in-a-string-ii
269,Alien Dictionary,33.3%,Hard,0.04997917057465883, https://leetcode.com/problems/alien-dictionary
981,Time Based Key-Value Store,53.1%,Medium,0.049406315387071284, https://leetcode.com/problems/time-based-key-value-store
322,Coin Change,35.5%,Medium,0.04828048261319787, https://leetcode.com/problems/coin-change
698,Partition to K Equal Sum Subsets,45.0%,Medium,0.04685917114094188, https://leetcode.com/problems/partition-to-k-equal-sum-subsets
556,Next Greater Element III,31.7%,Medium,0.04679216150675895, https://leetcode.com/problems/next-greater-element-iii
97,Interleaving String,31.5%,Hard,0.04548535439411653, https://leetcode.com/problems/interleaving-string
93,Restore IP Addresses,35.6%,Medium,0.04393092922572675, https://leetcode.com/problems/restore-ip-addresses
56,Merge Intervals,39.3%,Medium,0.04173304225331761, https://leetcode.com/problems/merge-intervals
243,Shortest Word Distance,61.0%,Easy,0.040780370344928096, https://leetcode.com/problems/shortest-word-distance
380,Insert Delete GetRandom O(1),47.5%,Medium,0.038717635350707984, https://leetcode.com/problems/insert-delete-getrandom-o1
47,Permutations II,46.4%,Medium,0.038145268259690404, https://leetcode.com/problems/permutations-ii
905,Sort Array By Parity,74.1%,Easy,0.03787434929243582, https://leetcode.com/problems/sort-array-by-parity
295,Find Median from Data Stream,44.3%,Hard,0.035519827248535335, https://leetcode.com/problems/find-median-from-data-stream
277,Find the Celebrity,41.8%,Medium,0.02969780239174205, https://leetcode.com/problems/find-the-celebrity
33,Search in Rotated Sorted Array,34.5%,Medium,0.0287009496170278, https://leetcode.com/problems/search-in-rotated-sorted-array
733,Flood Fill,55.3%,Easy,0.02506396866321625, https://leetcode.com/problems/flood-fill
23,Merge k Sorted Lists,40.2%,Hard,0.0250564321052577, https://leetcode.com/problems/merge-k-sorted-lists
1,Two Sum,45.6%,Easy,0.024530411623017775, https://leetcode.com/problems/two-sum
426,Convert Binary Search Tree to Sorted Doubly Linked List,59.1%,Medium,0.024214258120594613, https://leetcode.com/problems/convert-binary-search-tree-to-sorted-doubly-linked-list
1209,Remove All Adjacent Duplicates in String II,56.9%,Medium,0.02324334737232728, https://leetcode.com/problems/remove-all-adjacent-duplicates-in-string-ii
206,Reverse Linked List,62.5%,Easy,0.02086427467076072, https://leetcode.com/problems/reverse-linked-list
341,Flatten Nested List Iterator,52.9%,Medium,0.019980684690483426, https://leetcode.com/problems/flatten-nested-list-iterator
525,Contiguous Array,42.8%,Medium,0.01975372873623256, https://leetcode.com/problems/contiguous-array
402,Remove K Digits,28.4%,Medium,0.016863806052004816, https://leetcode.com/problems/remove-k-digits
116,Populating Next Right Pointers in Each Node,45.2%,Medium,0.016432723251567683, https://leetcode.com/problems/populating-next-right-pointers-in-each-node
238,Product of Array Except Self,60.1%,Medium,0.015629897160874744, https://leetcode.com/problems/product-of-array-except-self
4,Median of Two Sorted Arrays,29.6%,Hard,0.015510198481701449, https://leetcode.com/problems/median-of-two-sorted-arrays
80,Remove Duplicates from Sorted Array II,44.0%,Medium,0.014815085785140639, https://leetcode.com/problems/remove-duplicates-from-sorted-array-ii
102,Binary Tree Level Order Traversal,54.6%,Medium,0.014477270588287548, https://leetcode.com/problems/binary-tree-level-order-traversal
109,Convert Sorted List to Binary Search Tree,47.7%,Medium,0.014440684154794336, https://leetcode.com/problems/convert-sorted-list-to-binary-search-tree
150,Evaluate Reverse Polish Notation,36.3%,Medium,0.01413451093490476, https://leetcode.com/problems/evaluate-reverse-polish-notation
3,Longest Substring Without Repeating Characters,30.4%,Medium,0.01391434345649413, https://leetcode.com/problems/longest-substring-without-repeating-characters
304,Range Sum Query 2D - Immutable,38.6%,Medium,0.013913267916985026, https://leetcode.com/problems/range-sum-query-2d-immutable
39,Combination Sum,56.1%,Medium,0.012815211692867591, https://leetcode.com/problems/combination-sum
226,Invert Binary Tree,65.0%,Easy,0.01235091863400913, https://leetcode.com/problems/invert-binary-tree
88,Merge Sorted Array,39.4%,Easy,0.011986958032982505, https://leetcode.com/problems/merge-sorted-array
98,Validate Binary Search Tree,27.8%,Medium,0.01172346369605921, https://leetcode.com/problems/validate-binary-search-tree
647,Palindromic Substrings,60.6%,Medium,0.010400509768078022, https://leetcode.com/problems/palindromic-substrings
25,Reverse Nodes in k-Group,42.1%,Hard,0.01021198560502829, https://leetcode.com/problems/reverse-nodes-in-k-group
72,Edit Distance,44.8%,Hard,0.010017614452317782, https://leetcode.com/problems/edit-distance
17,Letter Combinations of a Phone Number,46.8%,Medium,0.00987716546167603, https://leetcode.com/problems/letter-combinations-of-a-phone-number
113,Path Sum II,46.7%,Medium,0.009784813879998279, https://leetcode.com/problems/path-sum-ii
21,Merge Two Sorted Lists,53.5%,Easy,0.008990339814651234, https://leetcode.com/problems/merge-two-sorted-lists
215,Kth Largest Element in an Array,55.4%,Medium,0.008759180089881562, https://leetcode.com/problems/kth-largest-element-in-an-array
977,Squares of a Sorted Array,72.1%,Easy,0.008733679968754604, https://leetcode.com/problems/squares-of-a-sorted-array
63,Unique Paths II,34.6%,Medium,0.008712753874961187, https://leetcode.com/problems/unique-paths-ii
416,Partition Equal Subset Sum,43.7%,Medium,0.008686265255960345, https://leetcode.com/problems/partition-equal-subset-sum
8,String to Integer (atoi),15.4%,Medium,0.008513104762248265, https://leetcode.com/problems/string-to-integer-atoi
394,Decode String,50.0%,Medium,0.008166644000272283, https://leetcode.com/problems/decode-string
133,Clone Graph,34.8%,Medium,0.008136741393061732, https://leetcode.com/problems/clone-graph
239,Sliding Window Maximum,43.0%,Hard,0.007898935224534491, https://leetcode.com/problems/sliding-window-maximum
16,3Sum Closest,46.0%,Medium,0.0075259057003469075, https://leetcode.com/problems/3sum-closest
692,Top K Frequent Words,51.8%,Medium,0.007516006820935329, https://leetcode.com/problems/top-k-frequent-words
36,Valid Sudoku,48.7%,Medium,0.007258242715805398, https://leetcode.com/problems/valid-sudoku
297,Serialize and Deserialize Binary Tree,47.5%,Hard,0.007077170374085099, https://leetcode.com/problems/serialize-and-deserialize-binary-tree
2,Add Two Numbers,33.9%,Medium,0.006737434951993369, https://leetcode.com/problems/add-two-numbers
200,Number of Islands,46.8%,Medium,0.006490251382779317, https://leetcode.com/problems/number-of-islands
41,First Missing Positive,32.0%,Hard,0.0064113058208121855, https://leetcode.com/problems/first-missing-positive
162,Find Peak Element,43.3%,Medium,0.006350235659345837, https://leetcode.com/problems/find-peak-element
230,Kth Smallest Element in a BST,60.2%,Medium,0.0063361529894967236, https://leetcode.com/problems/kth-smallest-element-in-a-bst
76,Minimum Window Substring,34.6%,Hard,0.006231520398723243, https://leetcode.com/problems/minimum-window-substring
127,Word Ladder,29.6%,Medium,0.005979091056058075, https://leetcode.com/problems/word-ladder
199,Binary Tree Right Side View,54.1%,Medium,0.0056826406650506926, https://leetcode.com/problems/binary-tree-right-side-view
124,Binary Tree Maximum Path Sum,34.3%,Hard,0.005531752454833179, https://leetcode.com/problems/binary-tree-maximum-path-sum
287,Find the Duplicate Number,55.5%,Medium,0.005501320434837602, https://leetcode.com/problems/find-the-duplicate-number
300,Longest Increasing Subsequence,42.6%,Medium,0.005264555460003242, https://leetcode.com/problems/longest-increasing-subsequence
55,Jump Game,34.6%,Medium,0.005022612266291382, https://leetcode.com/problems/jump-game
75,Sort Colors,47.3%,Medium,0.004992521603120986, https://leetcode.com/problems/sort-colors
15,3Sum,26.8%,Medium,0.004940992758742591, https://leetcode.com/problems/3sum
268,Missing Number,51.7%,Easy,0.0048804391649084865, https://leetcode.com/problems/missing-number
62,Unique Paths,54.1%,Medium,0.004621080312067025, https://leetcode.com/problems/unique-paths
234,Palindrome Linked List,39.3%,Easy,0.004533613114828982, https://leetcode.com/problems/palindrome-linked-list
46,Permutations,63.5%,Medium,0.004216302230139218, https://leetcode.com/problems/permutations
28,Implement strStr(),34.5%,Easy,0.003943222775040032, https://leetcode.com/problems/implement-strstr
139,Word Break,40.1%,Medium,0.003894465052690167, https://leetcode.com/problems/word-break
153,Find Minimum in Rotated Sorted Array,45.1%,Medium,0.0037558729598054378, https://leetcode.com/problems/find-minimum-in-rotated-sorted-array
141,Linked List Cycle,41.1%,Easy,0.0034937584669245472, https://leetcode.com/problems/linked-list-cycle
101,Symmetric Tree,46.8%,Easy,0.0034057078469827435, https://leetcode.com/problems/symmetric-tree
347,Top K Frequent Elements,61.2%,Medium,0.0033396446491217604, https://leetcode.com/problems/top-k-frequent-elements
19,Remove Nth Node From End of List,35.2%,Medium,0.003076452203393495, https://leetcode.com/problems/remove-nth-node-from-end-of-list
11,Container With Most Water,50.8%,Medium,0.0030677223230101427, https://leetcode.com/problems/container-with-most-water
621,Task Scheduler,50.1%,Medium,0.002341784338144407, https://leetcode.com/problems/task-scheduler
5,Longest Palindromic Substring,29.5%,Medium,0.002279333142507479, https://leetcode.com/problems/longest-palindromic-substring
121,Best Time to Buy and Sell Stock,50.5%,Easy,0.0021239321954525975, https://leetcode.com/problems/best-time-to-buy-and-sell-stock
26,Remove Duplicates from Sorted Array,45.1%,Easy,0.0019513153174351963, https://leetcode.com/problems/remove-duplicates-from-sorted-array
79,Word Search,35.6%,Medium,0.0016647248725526849, https://leetcode.com/problems/word-search
151,Reverse Words in a String,21.9%,Medium,0.0015375156780384337, https://leetcode.com/problems/reverse-words-in-a-string
50,Pow(x;n),30.3%,Medium,0.0014016892647828818, https://leetcode.com/problems/powx-n