Adds all question csvs

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krishnadey30
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138,Copy List with Random Pointer,36.4%,Medium,3.6989651187651815, https://leetcode.com/problems/copy-list-with-random-pointer
1,Two Sum,45.6%,Easy,3.5958778464490746, https://leetcode.com/problems/two-sum
146,LRU Cache,33.2%,Medium,3.4927905741329677, https://leetcode.com/problems/lru-cache
54,Spiral Matrix,34.1%,Medium,3.3897033018168607, https://leetcode.com/problems/spiral-matrix
273,Integer to English Words,27.1%,Hard,3.3683427542207363, https://leetcode.com/problems/integer-to-english-words
277,Find the Celebrity,41.8%,Medium,3.2652554819046293, https://leetcode.com/problems/find-the-celebrity
348,Design Tic-Tac-Toe,54.3%,Medium,3.1946430571909312, https://leetcode.com/problems/design-tic-tac-toe
2,Add Two Numbers,33.9%,Medium,3.169227011144196, https://leetcode.com/problems/add-two-numbers
42,Trapping Rain Water,48.9%,Hard,3.066139738828089, https://leetcode.com/problems/trapping-rain-water
206,Reverse Linked List,62.5%,Easy,3.0259163333793904, https://leetcode.com/problems/reverse-linked-list
5,Longest Palindromic Substring,29.5%,Medium,3.0113240473668283, https://leetcode.com/problems/longest-palindromic-substring
8,String to Integer (atoi),15.4%,Medium,2.9764877691901113, https://leetcode.com/problems/string-to-integer-atoi
200,Number of Islands,46.8%,Medium,2.9715009566629704, https://leetcode.com/problems/number-of-islands
4,Median of Two Sorted Arrays,29.6%,Hard,2.8916084554209203, https://leetcode.com/problems/median-of-two-sorted-arrays
186,Reverse Words in a String II,43.3%,Medium,2.8809479839142873, https://leetcode.com/problems/reverse-words-in-a-string-ii
88,Merge Sorted Array,39.4%,Easy,2.8627089563250068, https://leetcode.com/problems/merge-sorted-array
21,Merge Two Sorted Lists,53.5%,Easy,2.862457260385365, https://leetcode.com/problems/merge-two-sorted-lists
17,Letter Combinations of a Phone Number,46.8%,Medium,2.8573648034706545, https://leetcode.com/problems/letter-combinations-of-a-phone-number
218,The Skyline Problem,34.6%,Hard,2.8027736985781786, https://leetcode.com/problems/the-skyline-problem
165,Compare Version Numbers,27.4%,Medium,2.7909478091274953, https://leetcode.com/problems/compare-version-numbers
25,Reverse Nodes in k-Group,42.1%,Hard,2.7613797410092618, https://leetcode.com/problems/reverse-nodes-in-k-group
240,Search a 2D Matrix II,43.2%,Medium,2.7345899073645548, https://leetcode.com/problems/search-a-2d-matrix-ii
253,Meeting Rooms II,45.7%,Medium,2.7284716366094606, https://leetcode.com/problems/meeting-rooms-ii
10,Regular Expression Matching,26.8%,Hard,2.7266995930211992, https://leetcode.com/problems/regular-expression-matching
53,Maximum Subarray,46.5%,Easy,2.711940371971745, https://leetcode.com/problems/maximum-subarray
33,Search in Rotated Sorted Array,34.5%,Medium,2.6857170372662447, https://leetcode.com/problems/search-in-rotated-sorted-array
297,Serialize and Deserialize Binary Tree,47.5%,Hard,2.5826297649501377, https://leetcode.com/problems/serialize-and-deserialize-binary-tree
236,Lowest Common Ancestor of a Binary Tree,45.7%,Medium,2.568849235431705, https://leetcode.com/problems/lowest-common-ancestor-of-a-binary-tree
445,Add Two Numbers II,54.5%,Medium,2.529048190547753, https://leetcode.com/problems/add-two-numbers-ii
116,Populating Next Right Pointers in Each Node,45.2%,Medium,2.524874081924768, https://leetcode.com/problems/populating-next-right-pointers-in-each-node
23,Merge k Sorted Lists,40.2%,Hard,2.500573730617639, https://leetcode.com/problems/merge-k-sorted-lists
20,Valid Parentheses,39.0%,Easy,2.4687161355055203, https://leetcode.com/problems/valid-parentheses
402,Remove K Digits,28.4%,Medium,2.4166575492538938, https://leetcode.com/problems/remove-k-digits
557,Reverse Words in a String III,69.8%,Easy,2.336667524726581, https://leetcode.com/problems/reverse-words-in-a-string-iii
722,Remove Comments,34.6%,Medium,2.331903153750657, https://leetcode.com/problems/remove-comments
75,Sort Colors,47.3%,Medium,2.3276926686708626, https://leetcode.com/problems/sort-colors
24,Swap Nodes in Pairs,50.4%,Medium,2.327380452152487, https://leetcode.com/problems/swap-nodes-in-pairs
151,Reverse Words in a String,21.9%,Medium,2.3264780134045004, https://leetcode.com/problems/reverse-words-in-a-string
535,Encode and Decode TinyURL,79.9%,Medium,2.3039774779456117, https://leetcode.com/problems/encode-and-decode-tinyurl
48,Rotate Image,56.7%,Medium,2.303733858197919, https://leetcode.com/problems/rotate-image
98,Validate Binary Search Tree,27.8%,Medium,2.2943555684399337, https://leetcode.com/problems/validate-binary-search-tree
168,Excel Sheet Column Title,31.1%,Easy,2.2883104652014525, https://leetcode.com/problems/excel-sheet-column-title
105,Construct Binary Tree from Preorder and Inorder Traversal,48.8%,Medium,2.283021466343346, https://leetcode.com/problems/construct-binary-tree-from-preorder-and-inorder-traversal
419,Battleships in a Board,70.0%,Medium,2.2726225948204313, https://leetcode.com/problems/battleships-in-a-board
223,Rectangle Area,37.8%,Medium,2.2593091095122237, https://leetcode.com/problems/rectangle-area
171,Excel Sheet Column Number,55.9%,Easy,2.252757238907828, https://leetcode.com/problems/excel-sheet-column-number
121,Best Time to Buy and Sell Stock,50.5%,Easy,2.2448336717447694, https://leetcode.com/problems/best-time-to-buy-and-sell-stock
224,Basic Calculator,36.8%,Hard,2.2034434298807333, https://leetcode.com/problems/basic-calculator
1239,Maximum Length of a Concatenated String with Unique Characters,47.8%,Medium,2.194070311537135, https://leetcode.com/problems/maximum-length-of-a-concatenated-string-with-unique-characters
44,Wildcard Matching,24.7%,Hard,2.191381777704533, https://leetcode.com/problems/wildcard-matching
794,Valid Tic-Tac-Toe State,32.6%,Medium,2.1777117631126375, https://leetcode.com/problems/valid-tic-tac-toe-state
545,Boundary of Binary Tree,38.9%,Medium,2.1677790029375226, https://leetcode.com/problems/boundary-of-binary-tree
134,Gas Station,38.5%,Medium,2.142566589871282, https://leetcode.com/problems/gas-station
22,Generate Parentheses,62.7%,Medium,2.0785670335349034, https://leetcode.com/problems/generate-parentheses
73,Set Matrix Zeroes,43.1%,Medium,2.0775918912648, https://leetcode.com/problems/set-matrix-zeroes
428,Serialize and Deserialize N-ary Tree,59.4%,Hard,2.076668713601008, https://leetcode.com/problems/serialize-and-deserialize-n-ary-tree
443,String Compression,41.3%,Easy,2.0513907055271603, https://leetcode.com/problems/string-compression
450,Delete Node in a BST,43.1%,Medium,2.048205702566481, https://leetcode.com/problems/delete-node-in-a-bst
13,Roman to Integer,55.7%,Easy,2.01479997556304, https://leetcode.com/problems/roman-to-integer
235,Lowest Common Ancestor of a Binary Search Tree,49.9%,Easy,2.0107138401241684, https://leetcode.com/problems/lowest-common-ancestor-of-a-binary-search-tree
103,Binary Tree Zigzag Level Order Traversal,48.3%,Medium,2.010536070419761, https://leetcode.com/problems/binary-tree-zigzag-level-order-traversal
212,Word Search II,34.9%,Hard,1.9371085874627856, https://leetcode.com/problems/word-search-ii
117,Populating Next Right Pointers in Each Node II,39.1%,Medium,1.9167709936539865, https://leetcode.com/problems/populating-next-right-pointers-in-each-node-ii
344,Reverse String,68.5%,Easy,1.8931494469290506, https://leetcode.com/problems/reverse-string
208,Implement Trie (Prefix Tree),49.4%,Medium,1.8703411019596332, https://leetcode.com/problems/implement-trie-prefix-tree
43,Multiply Strings,33.9%,Medium,1.8392290485002738, https://leetcode.com/problems/multiply-strings
285,Inorder Successor in BST,40.4%,Medium,1.8053129785679367, https://leetcode.com/problems/inorder-successor-in-bst
49,Group Anagrams,56.9%,Medium,1.804619099717657, https://leetcode.com/problems/group-anagrams
71,Simplify Path,32.6%,Medium,1.7951689508806754, https://leetcode.com/problems/simplify-path
99,Recover Binary Search Tree,39.7%,Hard,1.7775344782967077, https://leetcode.com/problems/recover-binary-search-tree
15,3Sum,26.8%,Medium,1.7686547532150265, https://leetcode.com/problems/3sum
141,Linked List Cycle,41.1%,Easy,1.7563603010788833, https://leetcode.com/problems/linked-list-cycle
232,Implement Queue using Stacks,49.6%,Easy,1.749421031222925, https://leetcode.com/problems/implement-queue-using-stacks
12,Integer to Roman,55.1%,Medium,1.746102779627118, https://leetcode.com/problems/integer-to-roman
37,Sudoku Solver,43.6%,Hard,1.7414976344471667, https://leetcode.com/problems/sudoku-solver
72,Edit Distance,44.8%,Hard,1.7323480343505713, https://leetcode.com/problems/edit-distance
295,Find Median from Data Stream,44.3%,Hard,1.7185203068596524, https://leetcode.com/problems/find-median-from-data-stream
160,Intersection of Two Linked Lists,40.6%,Easy,1.7175192044428398, https://leetcode.com/problems/intersection-of-two-linked-lists
36,Valid Sudoku,48.7%,Medium,1.7143211698041672, https://leetcode.com/problems/valid-sudoku
3,Longest Substring Without Repeating Characters,30.4%,Medium,1.7119508013774896, https://leetcode.com/problems/longest-substring-without-repeating-characters
143,Reorder List,37.1%,Medium,1.6917986160352108, https://leetcode.com/problems/reorder-list
76,Minimum Window Substring,34.6%,Hard,1.684498704459816, https://leetcode.com/problems/minimum-window-substring
46,Permutations,63.5%,Medium,1.6727146787726128, https://leetcode.com/problems/permutations
102,Binary Tree Level Order Traversal,54.6%,Medium,1.651417093517297, https://leetcode.com/problems/binary-tree-level-order-traversal
155,Min Stack,44.5%,Easy,1.6375525909607844, https://leetcode.com/problems/min-stack
56,Merge Intervals,39.3%,Medium,1.6137424284012196, https://leetcode.com/problems/merge-intervals
51,N-Queens,46.6%,Hard,1.6036359898179926, https://leetcode.com/problems/n-queens
173,Binary Search Tree Iterator,56.6%,Medium,1.5975171846753242, https://leetcode.com/problems/binary-search-tree-iterator
93,Restore IP Addresses,35.6%,Medium,1.5917169493061911, https://leetcode.com/problems/restore-ip-addresses
636,Exclusive Time of Functions,51.9%,Medium,1.5833981368525032, https://leetcode.com/problems/exclusive-time-of-functions
706,Design HashMap,61.3%,Easy,1.5513741114793391, https://leetcode.com/problems/design-hashmap
238,Product of Array Except Self,60.1%,Medium,1.539762660750497, https://leetcode.com/problems/product-of-array-except-self
149,Max Points on a Line,16.9%,Hard,1.5309662969926052, https://leetcode.com/problems/max-points-on-a-line
139,Word Break,40.1%,Medium,1.5067078235450475, https://leetcode.com/problems/word-break
31,Next Permutation,32.6%,Medium,1.4952605643210366, https://leetcode.com/problems/next-permutation
61,Rotate List,30.0%,Medium,1.4847733982613056, https://leetcode.com/problems/rotate-list
836,Rectangle Overlap,48.6%,Easy,1.4453669442208494, https://leetcode.com/problems/rectangle-overlap
642,Design Search Autocomplete System,44.7%,Hard,1.4351899882719135, https://leetcode.com/problems/design-search-autocomplete-system
227,Basic Calculator II,36.9%,Medium,1.4336576098594838, https://leetcode.com/problems/basic-calculator-ii
127,Word Ladder,29.6%,Medium,1.4284947156102672, https://leetcode.com/problems/word-ladder
322,Coin Change,35.5%,Medium,1.4268982821969922, https://leetcode.com/problems/coin-change
564,Find the Closest Palindrome,19.7%,Hard,1.425008873300581, https://leetcode.com/problems/find-the-closest-palindrome
59,Spiral Matrix II,53.9%,Medium,1.4157990742225208, https://leetcode.com/problems/spiral-matrix-ii
74,Search a 2D Matrix,36.5%,Medium,1.396449102597548, https://leetcode.com/problems/search-a-2d-matrix
384,Shuffle an Array,52.8%,Medium,1.3892672714849832, https://leetcode.com/problems/shuffle-an-array
229,Majority Element II,35.6%,Medium,1.3878563920773275, https://leetcode.com/problems/majority-element-ii
153,Find Minimum in Rotated Sorted Array,45.1%,Medium,1.3737513023422454, https://leetcode.com/problems/find-minimum-in-rotated-sorted-array
174,Dungeon Game,32.3%,Hard,1.3665611251341205, https://leetcode.com/problems/dungeon-game
92,Reverse Linked List II,38.8%,Medium,1.3490528201879903, https://leetcode.com/problems/reverse-linked-list-ii
449,Serialize and Deserialize BST,52.0%,Medium,1.3213393231925648, https://leetcode.com/problems/serialize-and-deserialize-bst
179,Largest Number,28.8%,Medium,1.3181425718749433, https://leetcode.com/problems/largest-number
128,Longest Consecutive Sequence,45.1%,Hard,1.2886456910504667, https://leetcode.com/problems/longest-consecutive-sequence
234,Palindrome Linked List,39.3%,Easy,1.2857250051644113, https://leetcode.com/problems/palindrome-linked-list
239,Sliding Window Maximum,43.0%,Hard,1.2723945373280132, https://leetcode.com/problems/sliding-window-maximum
346,Moving Average from Data Stream,70.9%,Easy,1.2716814290610372, https://leetcode.com/problems/moving-average-from-data-stream
204,Count Primes,31.5%,Easy,1.2703504777562535, https://leetcode.com/problems/count-primes
468,Validate IP Address,24.1%,Medium,1.2627381135521876, https://leetcode.com/problems/validate-ip-address
135,Candy,31.6%,Hard,1.2375419744850127, https://leetcode.com/problems/candy
287,Find the Duplicate Number,55.5%,Medium,1.2333669019608022, https://leetcode.com/problems/find-the-duplicate-number
126,Word Ladder II,22.1%,Hard,1.2241491835619676, https://leetcode.com/problems/word-ladder-ii
133,Clone Graph,34.8%,Medium,1.212271607140631, https://leetcode.com/problems/clone-graph
679,24 Game,46.4%,Hard,1.1994357786013692, https://leetcode.com/problems/24-game
142,Linked List Cycle II,37.3%,Medium,1.179958785742859, https://leetcode.com/problems/linked-list-cycle-ii
328,Odd Even Linked List,55.7%,Medium,1.168614944926649, https://leetcode.com/problems/odd-even-linked-list
148,Sort List,42.3%,Medium,1.1657881739717664, https://leetcode.com/problems/sort-list
225,Implement Stack using Queues,45.1%,Easy,1.1607390767279342, https://leetcode.com/problems/implement-stack-using-queues
283,Move Zeroes,57.8%,Easy,1.1585213499895073, https://leetcode.com/problems/move-zeroes
124,Binary Tree Maximum Path Sum,34.3%,Hard,1.134390381747712, https://leetcode.com/problems/binary-tree-maximum-path-sum
591,Tag Validator,34.3%,Hard,1.133098464739279, https://leetcode.com/problems/tag-validator
41,First Missing Positive,32.0%,Hard,1.1262068083309473, https://leetcode.com/problems/first-missing-positive
268,Missing Number,51.7%,Easy,1.117112634548289, https://leetcode.com/problems/missing-number
94,Binary Tree Inorder Traversal,63.3%,Medium,1.1043650482569707, https://leetcode.com/problems/binary-tree-inorder-traversal
85,Maximal Rectangle,37.7%,Hard,1.075986889150131, https://leetcode.com/problems/maximal-rectangle
529,Minesweeper,59.1%,Medium,1.0687593255184287, https://leetcode.com/problems/minesweeper
252,Meeting Rooms,54.6%,Easy,1.0686699320530313, https://leetcode.com/problems/meeting-rooms
403,Frog Jump,39.7%,Hard,1.0638726563743854, https://leetcode.com/problems/frog-jump
215,Kth Largest Element in an Array,55.4%,Medium,1.0621118864485832, https://leetcode.com/problems/kth-largest-element-in-an-array
189,Rotate Array,34.7%,Easy,1.0531076560110935, https://leetcode.com/problems/rotate-array
490,The Maze,51.4%,Medium,1.0476840243995968, https://leetcode.com/problems/the-maze
457,Circular Array Loop,29.4%,Medium,1.0336744862315626, https://leetcode.com/problems/circular-array-loop
380,Insert Delete GetRandom O(1),47.5%,Medium,1.029143465930734, https://leetcode.com/problems/insert-delete-getrandom-o1
84,Largest Rectangle in Histogram,35.2%,Hard,1.0152852763058668, https://leetcode.com/problems/largest-rectangle-in-histogram
19,Remove Nth Node From End of List,35.2%,Medium,0.9938393087142735, https://leetcode.com/problems/remove-nth-node-from-end-of-list
169,Majority Element,58.7%,Easy,0.96110239828995, https://leetcode.com/problems/majority-element
68,Text Justification,27.7%,Hard,0.9465228638244356, https://leetcode.com/problems/text-justification
695,Max Area of Island,62.7%,Medium,0.9340698215503037, https://leetcode.com/problems/max-area-of-island
79,Word Search,35.6%,Medium,0.9160907785292691, https://leetcode.com/problems/word-search
237,Delete Node in a Linked List,63.8%,Easy,0.9125441994897425, https://leetcode.com/problems/delete-node-in-a-linked-list
91,Decode Ways,24.7%,Medium,0.8912568458516014, https://leetcode.com/problems/decode-ways
152,Maximum Product Subarray,31.7%,Medium,0.890020140522056, https://leetcode.com/problems/maximum-product-subarray
32,Longest Valid Parentheses,28.4%,Hard,0.887976006706294, https://leetcode.com/problems/longest-valid-parentheses
11,Container With Most Water,50.8%,Medium,0.8838633903934879, https://leetcode.com/problems/container-with-most-water
289,Game of Life,54.5%,Medium,0.8818919263853663, https://leetcode.com/problems/game-of-life
1246,Palindrome Removal,46.0%,Hard,0.875792939010168, https://leetcode.com/problems/palindrome-removal
69,Sqrt(x),33.9%,Easy,0.8723735857287784, https://leetcode.com/problems/sqrtx
7,Reverse Integer,25.8%,Easy,0.8578608494978868, https://leetcode.com/problems/reverse-integer
28,Implement strStr(),34.5%,Easy,0.8553648003461056, https://leetcode.com/problems/implement-strstr
89,Gray Code,49.1%,Medium,0.8553139353754396, https://leetcode.com/problems/gray-code
242,Valid Anagram,56.9%,Easy,0.8538771239510634, https://leetcode.com/problems/valid-anagram
702,Search in a Sorted Array of Unknown Size,66.9%,Medium,0.8458894094501456, https://leetcode.com/problems/search-in-a-sorted-array-of-unknown-size
460,LFU Cache,34.2%,Hard,0.8452742509276767, https://leetcode.com/problems/lfu-cache
38,Count and Say,44.6%,Easy,0.8451621282279073, https://leetcode.com/problems/count-and-say
772,Basic Calculator III,41.3%,Hard,0.8430873278508602, https://leetcode.com/problems/basic-calculator-iii
651,4 Keys Keyboard,52.5%,Medium,0.8425641237370047, https://leetcode.com/problems/4-keys-keyboard
340,Longest Substring with At Most K Distinct Characters,44.1%,Hard,0.840073826640526, https://leetcode.com/problems/longest-substring-with-at-most-k-distinct-characters
378,Kth Smallest Element in a Sorted Matrix,54.3%,Medium,0.8286514648404306, https://leetcode.com/problems/kth-smallest-element-in-a-sorted-matrix
269,Alien Dictionary,33.3%,Hard,0.8247147627623457, https://leetcode.com/problems/alien-dictionary
9,Palindrome Number,48.4%,Easy,0.8235694244095082, https://leetcode.com/problems/palindrome-number
622,Design Circular Queue,43.8%,Medium,0.8231587572738468, https://leetcode.com/problems/design-circular-queue
26,Remove Duplicates from Sorted Array,45.1%,Easy,0.8198157546148236, https://leetcode.com/problems/remove-duplicates-from-sorted-array
362,Design Hit Counter,63.7%,Medium,0.8152055540667307, https://leetcode.com/problems/design-hit-counter
140,Word Break II,32.6%,Hard,0.8122846793788384, https://leetcode.com/problems/word-break-ii
123,Best Time to Buy and Sell Stock III,37.5%,Hard,0.8103008499673461, https://leetcode.com/problems/best-time-to-buy-and-sell-stock-iii
669,Trim a Binary Search Tree,63.0%,Easy,0.805008260820865, https://leetcode.com/problems/trim-a-binary-search-tree
351,Android Unlock Patterns,48.4%,Medium,0.7857399673877702, https://leetcode.com/problems/android-unlock-patterns
110,Balanced Binary Tree,43.5%,Easy,0.7847320043954652, https://leetcode.com/problems/balanced-binary-tree
510,Inorder Successor in BST II,58.0%,Medium,0.7822749604559527, https://leetcode.com/problems/inorder-successor-in-bst-ii
470,Implement Rand10() Using Rand7(),46.3%,Medium,0.7717903078790584, https://leetcode.com/problems/implement-rand10-using-rand7
78,Subsets,62.0%,Medium,0.7567934361936809, https://leetcode.com/problems/subsets
887,Super Egg Drop,27.1%,Hard,0.7550319038990971, https://leetcode.com/problems/super-egg-drop
161,One Edit Distance,32.3%,Medium,0.7501260358569138, https://leetcode.com/problems/one-edit-distance
62,Unique Paths,54.1%,Medium,0.7480063652707217, https://leetcode.com/problems/unique-paths
394,Decode String,50.0%,Medium,0.7345102340934244, https://leetcode.com/problems/decode-string
191,Number of 1 Bits,49.8%,Easy,0.7324003471380575, https://leetcode.com/problems/number-of-1-bits
442,Find All Duplicates in an Array,67.8%,Medium,0.7226546728293853, https://leetcode.com/problems/find-all-duplicates-in-an-array
207,Course Schedule,43.1%,Medium,0.7160235932457453, https://leetcode.com/problems/course-schedule
39,Combination Sum,56.1%,Medium,0.7152569247320627, https://leetcode.com/problems/combination-sum
652,Find Duplicate Subtrees,50.2%,Medium,0.7105924664945938, https://leetcode.com/problems/find-duplicate-subtrees
560,Subarray Sum Equals K,43.9%,Medium,0.7082042605360416, https://leetcode.com/problems/subarray-sum-equals-k
125,Valid Palindrome,36.7%,Easy,0.7036117291497562, https://leetcode.com/problems/valid-palindrome
86,Partition List,41.5%,Medium,0.7022543510090344, https://leetcode.com/problems/partition-list
688,Knight Probability in Chessboard,48.9%,Medium,0.6794349186959634, https://leetcode.com/problems/knight-probability-in-chessboard
64,Minimum Path Sum,54.5%,Medium,0.6731263364629722, https://leetcode.com/problems/minimum-path-sum
379,Design Phone Directory,46.8%,Medium,0.6729444732424258, https://leetcode.com/problems/design-phone-directory
81,Search in Rotated Sorted Array II,33.0%,Medium,0.6690496289808848, https://leetcode.com/problems/search-in-rotated-sorted-array-ii
412,Fizz Buzz,62.3%,Easy,0.6683916389849122, https://leetcode.com/problems/fizz-buzz
417,Pacific Atlantic Water Flow,41.1%,Medium,0.666478933477784, https://leetcode.com/problems/pacific-atlantic-water-flow
114,Flatten Binary Tree to Linked List,49.3%,Medium,0.6498350640362595, https://leetcode.com/problems/flatten-binary-tree-to-linked-list
77,Combinations,54.7%,Medium,0.6484298604423074, https://leetcode.com/problems/combinations
150,Evaluate Reverse Polish Notation,36.3%,Medium,0.6476434251751189, https://leetcode.com/problems/evaluate-reverse-polish-notation
29,Divide Two Integers,16.4%,Medium,0.6411919721433796, https://leetcode.com/problems/divide-two-integers
300,Longest Increasing Subsequence,42.6%,Medium,0.6376640428342715, https://leetcode.com/problems/longest-increasing-subsequence
716,Max Stack,42.6%,Easy,0.6330336058902137, https://leetcode.com/problems/max-stack
387,First Unique Character in a String,53.4%,Easy,0.632243999450364, https://leetcode.com/problems/first-unique-character-in-a-string
647,Palindromic Substrings,60.6%,Medium,0.6134746779188923, https://leetcode.com/problems/palindromic-substrings
863,All Nodes Distance K in Binary Tree,55.4%,Medium,0.6086589499121026, https://leetcode.com/problems/all-nodes-distance-k-in-binary-tree
358,Rearrange String k Distance Apart,34.9%,Hard,0.6082477367734591, https://leetcode.com/problems/rearrange-string-k-distance-apart
82,Remove Duplicates from Sorted List II,36.8%,Medium,0.607321902630019, https://leetcode.com/problems/remove-duplicates-from-sorted-list-ii
733,Flood Fill,55.3%,Easy,0.5960870214781206, https://leetcode.com/problems/flood-fill
228,Summary Ranges,39.5%,Medium,0.5888553265052927, https://leetcode.com/problems/summary-ranges
759,Employee Free Time,66.3%,Hard,0.5861248448271091, https://leetcode.com/problems/employee-free-time
407,Trapping Rain Water II,42.4%,Hard,0.5801132920909243, https://leetcode.com/problems/trapping-rain-water-ii
230,Kth Smallest Element in a BST,60.2%,Medium,0.5704757662017736, https://leetcode.com/problems/kth-smallest-element-in-a-bst
281,Zigzag Iterator,58.4%,Medium,0.5665602602882338, https://leetcode.com/problems/zigzag-iterator
415,Add Strings,47.5%,Easy,0.566230787928643, https://leetcode.com/problems/add-strings
572,Subtree of Another Tree,44.1%,Easy,0.5649315643132164, https://leetcode.com/problems/subtree-of-another-tree
118,Pascal's Triangle,52.5%,Easy,0.5577273046973674, https://leetcode.com/problems/pascals-triangle
426,Convert Binary Search Tree to Sorted Doubly Linked List,59.1%,Medium,0.5547017731329936, https://leetcode.com/problems/convert-binary-search-tree-to-sorted-doubly-linked-list
655,Print Binary Tree,55.0%,Medium,0.5524260762711364, https://leetcode.com/problems/print-binary-tree
70,Climbing Stairs,47.8%,Easy,0.5484963397685039, https://leetcode.com/problems/climbing-stairs
1156,Swap For Longest Repeated Character Substring,49.0%,Medium,0.538996500732687, https://leetcode.com/problems/swap-for-longest-repeated-character-substring
286,Walls and Gates,54.5%,Medium,0.5372803513497615, https://leetcode.com/problems/walls-and-gates
518,Coin Change 2,50.2%,Medium,0.535971655257865, https://leetcode.com/problems/coin-change-2
493,Reverse Pairs,25.2%,Hard,0.5334746755483791, https://leetcode.com/problems/reverse-pairs
543,Diameter of Binary Tree,48.4%,Easy,0.5327148984531092, https://leetcode.com/problems/diameter-of-binary-tree
83,Remove Duplicates from Sorted List,45.4%,Easy,0.5322016386647934, https://leetcode.com/problems/remove-duplicates-from-sorted-list
45,Jump Game II,30.6%,Hard,0.5265290156944407, https://leetcode.com/problems/jump-game-ii
199,Binary Tree Right Side View,54.1%,Medium,0.5244663152343737, https://leetcode.com/problems/binary-tree-right-side-view
304,Range Sum Query 2D - Immutable,38.6%,Medium,0.5226642021421153, https://leetcode.com/problems/range-sum-query-2d-immutable
267,Palindrome Permutation II,36.4%,Medium,0.5195071758508175, https://leetcode.com/problems/palindrome-permutation-ii
167,Two Sum II - Input array is sorted,54.1%,Easy,0.5117640208319821, https://leetcode.com/problems/two-sum-ii-input-array-is-sorted
767,Reorganize String,48.7%,Medium,0.5043791872596706, https://leetcode.com/problems/reorganize-string
432,All O`one Data Structure,32.4%,Hard,0.49573913073261056, https://leetcode.com/problems/all-oone-data-structure
516,Longest Palindromic Subsequence,53.2%,Medium,0.4919958213546186, https://leetcode.com/problems/longest-palindromic-subsequence
270,Closest Binary Search Tree Value,48.5%,Easy,0.48351300163526767, https://leetcode.com/problems/closest-binary-search-tree-value
101,Symmetric Tree,46.8%,Easy,0.4835048270478799, https://leetcode.com/problems/symmetric-tree
917,Reverse Only Letters,58.0%,Easy,0.4628926502431949, https://leetcode.com/problems/reverse-only-letters
556,Next Greater Element III,31.7%,Medium,0.4617360135694671, https://leetcode.com/problems/next-greater-element-iii
1044,Longest Duplicate Substring,31.9%,Hard,0.45665121561528643, https://leetcode.com/problems/longest-duplicate-substring
122,Best Time to Buy and Sell Stock II,57.0%,Easy,0.4497220566283928, https://leetcode.com/problems/best-time-to-buy-and-sell-stock-ii
333,Largest BST Subtree,35.8%,Medium,0.44572532239455054, https://leetcode.com/problems/largest-bst-subtree
108,Convert Sorted Array to Binary Search Tree,57.9%,Easy,0.4427274468005625, https://leetcode.com/problems/convert-sorted-array-to-binary-search-tree
935,Knight Dialer,45.2%,Medium,0.44264411134991843, https://leetcode.com/problems/knight-dialer
214,Shortest Palindrome,29.8%,Hard,0.4424536774775049, https://leetcode.com/problems/shortest-palindrome
55,Jump Game,34.6%,Medium,0.44156297053083593, https://leetcode.com/problems/jump-game
314,Binary Tree Vertical Order Traversal,45.3%,Medium,0.4380937008921841, https://leetcode.com/problems/binary-tree-vertical-order-traversal
280,Wiggle Sort,63.8%,Medium,0.4358425582560355, https://leetcode.com/problems/wiggle-sort
692,Top K Frequent Words,51.8%,Medium,0.43507396043031815, https://leetcode.com/problems/top-k-frequent-words
698,Partition to K Equal Sum Subsets,45.0%,Medium,0.42725858927476734, https://leetcode.com/problems/partition-to-k-equal-sum-subsets
266,Palindrome Permutation,61.9%,Easy,0.41882207294422785, https://leetcode.com/problems/palindrome-permutation
162,Find Peak Element,43.3%,Medium,0.41607906913719583, https://leetcode.com/problems/find-peak-element
30,Substring with Concatenation of All Words,25.4%,Hard,0.41194709630297865, https://leetcode.com/problems/substring-with-concatenation-of-all-words
50,Pow(x, n),30.3%,Medium,0.4096992146874839, https://leetcode.com/problems/powx-n
448,Find All Numbers Disappeared in an Array,55.9%,Easy,0.4038568366529517, https://leetcode.com/problems/find-all-numbers-disappeared-in-an-array
112,Path Sum,41.2%,Easy,0.4021229967221487, https://leetcode.com/problems/path-sum
316,Remove Duplicate Letters,35.8%,Hard,0.40185220095239377, https://leetcode.com/problems/remove-duplicate-letters
413,Arithmetic Slices,57.9%,Medium,0.3794137261371684, https://leetcode.com/problems/arithmetic-slices
438,Find All Anagrams in a String,43.3%,Medium,0.3777487527652922, https://leetcode.com/problems/find-all-anagrams-in-a-string
729,My Calendar I,51.8%,Medium,0.3746934494414107, https://leetcode.com/problems/my-calendar-i
528,Random Pick with Weight,43.9%,Medium,0.37294088733187064, https://leetcode.com/problems/random-pick-with-weight
498,Diagonal Traverse,48.2%,Medium,0.36965808183913323, https://leetcode.com/problems/diagonal-traverse
172,Factorial Trailing Zeroes,37.8%,Easy,0.3691548840515713, https://leetcode.com/problems/factorial-trailing-zeroes
405,Convert a Number to Hexadecimal,43.9%,Easy,0.36886796401660715, https://leetcode.com/problems/convert-a-number-to-hexadecimal
958,Check Completeness of a Binary Tree,52.1%,Medium,0.368486104867077, https://leetcode.com/problems/check-completeness-of-a-binary-tree
159,Longest Substring with At Most Two Distinct Characters,49.4%,Medium,0.36517862980007215, https://leetcode.com/problems/longest-substring-with-at-most-two-distinct-characters
993,Cousins in Binary Tree,52.0%,Easy,0.36406958263507494, https://leetcode.com/problems/cousins-in-binary-tree
63,Unique Paths II,34.6%,Medium,0.35682807157091273, https://leetcode.com/problems/unique-paths-ii
332,Reconstruct Itinerary,36.7%,Medium,0.3499348287861282, https://leetcode.com/problems/reconstruct-itinerary
1185,Day of the Week,64.0%,Easy,0.34898886906784754, https://leetcode.com/problems/day-of-the-week
113,Path Sum II,46.7%,Medium,0.3474387140036706, https://leetcode.com/problems/path-sum-ii
166,Fraction to Recurring Decimal,21.6%,Medium,0.3451585018771733, https://leetcode.com/problems/fraction-to-recurring-decimal
397,Integer Replacement,32.9%,Medium,0.342522988151367, https://leetcode.com/problems/integer-replacement
805,Split Array With Same Average,26.4%,Hard,0.3416302106614813, https://leetcode.com/problems/split-array-with-same-average
14,Longest Common Prefix,35.4%,Easy,0.33820492794739787, https://leetcode.com/problems/longest-common-prefix
1236,Web Crawler,64.3%,Medium,0.33647223662121295, https://leetcode.com/problems/web-crawler
226,Invert Binary Tree,65.0%,Easy,0.33580132079597935, https://leetcode.com/problems/invert-binary-tree
431,Encode N-ary Tree to Binary Tree,70.8%,Hard,0.3308542443169896, https://leetcode.com/problems/encode-n-ary-tree-to-binary-tree
611,Valid Triangle Number,48.4%,Medium,0.33024168687057687, https://leetcode.com/problems/valid-triangle-number
727,Minimum Window Subsequence,41.8%,Hard,0.3290234126082223, https://leetcode.com/problems/minimum-window-subsequence
1062,Longest Repeating Substring,57.2%,Medium,0.32609152056665214, https://leetcode.com/problems/longest-repeating-substring
430,Flatten a Multilevel Doubly Linked List,55.1%,Medium,0.32335829449138764, https://leetcode.com/problems/flatten-a-multilevel-doubly-linked-list
136,Single Number,65.5%,Easy,0.32212410595951135, https://leetcode.com/problems/single-number
567,Permutation in String,44.4%,Medium,0.31954842197771616, https://leetcode.com/problems/permutation-in-string
994,Rotting Oranges,49.2%,Medium,0.31869742552695396, https://leetcode.com/problems/rotting-oranges
65,Valid Number,15.3%,Hard,0.3147685466373522, https://leetcode.com/problems/valid-number
1197,Minimum Knight Moves,36.1%,Medium,0.3142660340639637, https://leetcode.com/problems/minimum-knight-moves
106,Construct Binary Tree from Inorder and Postorder Traversal,47.2%,Medium,0.31197312481093953, https://leetcode.com/problems/construct-binary-tree-from-inorder-and-postorder-traversal
109,Convert Sorted List to Binary Search Tree,47.7%,Medium,0.3101549283038395, https://leetcode.com/problems/convert-sorted-list-to-binary-search-tree
383,Ransom Note,53.1%,Easy,0.3074846997479606, https://leetcode.com/problems/ransom-note
221,Maximal Square,37.7%,Medium,0.3057737602882765, https://leetcode.com/problems/maximal-square
147,Insertion Sort List,41.1%,Medium,0.30480732197724425, https://leetcode.com/problems/insertion-sort-list
909,Snakes and Ladders,38.4%,Medium,0.30024869505163937, https://leetcode.com/problems/snakes-and-ladders
724,Find Pivot Index,44.0%,Easy,0.29912265485367395, https://leetcode.com/problems/find-pivot-index
40,Combination Sum II,48.2%,Medium,0.2974989835662538, https://leetcode.com/problems/combination-sum-ii
828,Count Unique Characters of All Substrings of a Given String,45.2%,Hard,0.2972515234679316, https://leetcode.com/problems/count-unique-characters-of-all-substrings-of-a-given-string
95,Unique Binary Search Trees II,40.6%,Medium,0.2958298345782864, https://leetcode.com/problems/unique-binary-search-trees-ii
1375,Bulb Switcher III,62.6%,Medium,0.29173887314739533, https://leetcode.com/problems/bulb-switcher-iii
347,Top K Frequent Elements,61.2%,Medium,0.28857373546226267, https://leetcode.com/problems/top-k-frequent-elements
354,Russian Doll Envelopes,35.6%,Hard,0.2883782089226364, https://leetcode.com/problems/russian-doll-envelopes
97,Interleaving String,31.5%,Hard,0.28587071214283233, https://leetcode.com/problems/interleaving-string
1136,Parallel Courses,61.1%,Hard,0.2858421455297737, https://leetcode.com/problems/parallel-courses
708,Insert into a Sorted Circular Linked List,31.6%,Medium,0.28504006298894224, https://leetcode.com/problems/insert-into-a-sorted-circular-linked-list
681,Next Closest Time,45.0%,Medium,0.2802157173642045, https://leetcode.com/problems/next-closest-time
129,Sum Root to Leaf Numbers,49.1%,Medium,0.27802016154004405, https://leetcode.com/problems/sum-root-to-leaf-numbers
969,Pancake Sorting,67.5%,Medium,0.27343004974457946, https://leetcode.com/problems/pancake-sorting
540,Single Element in a Sorted Array,57.9%,Medium,0.270315853943239, https://leetcode.com/problems/single-element-in-a-sorted-array
202,Happy Number,50.4%,Easy,0.268522802513303, https://leetcode.com/problems/happy-number
349,Intersection of Two Arrays,62.5%,Easy,0.26807134960778223, https://leetcode.com/problems/intersection-of-two-arrays
198,House Robber,42.0%,Easy,0.2661579642572608, https://leetcode.com/problems/house-robber
694,Number of Distinct Islands,56.0%,Medium,0.26236426446749106, https://leetcode.com/problems/number-of-distinct-islands
18,4Sum,33.7%,Medium,0.26175539010512316, https://leetcode.com/problems/4sum
683,K Empty Slots,35.6%,Hard,0.25708853309999324, https://leetcode.com/problems/k-empty-slots
315,Count of Smaller Numbers After Self,41.5%,Hard,0.2567607594720918, https://leetcode.com/problems/count-of-smaller-numbers-after-self
216,Combination Sum III,56.6%,Medium,0.24698514158015275, https://leetcode.com/problems/combination-sum-iii
6,ZigZag Conversion,36.3%,Medium,0.2458374437427011, https://leetcode.com/problems/zigzag-conversion
329,Longest Increasing Path in a Matrix,43.4%,Hard,0.24152335025129923, https://leetcode.com/problems/longest-increasing-path-in-a-matrix
308,Range Sum Query 2D - Mutable,35.6%,Hard,0.24116205681688807, https://leetcode.com/problems/range-sum-query-2d-mutable
120,Triangle,44.2%,Medium,0.23887525258068545, https://leetcode.com/problems/triangle
57,Insert Interval,33.5%,Hard,0.23697938397356041, https://leetcode.com/problems/insert-interval
416,Partition Equal Subset Sum,43.7%,Medium,0.23420537108328685, https://leetcode.com/problems/partition-equal-subset-sum
257,Binary Tree Paths,51.5%,Easy,0.23334105110860667, https://leetcode.com/problems/binary-tree-paths
1188,Design Bounded Blocking Queue,70.5%,Medium,0.23300728083654992, https://leetcode.com/problems/design-bounded-blocking-queue
243,Shortest Word Distance,61.0%,Easy,0.23122733458279973, https://leetcode.com/problems/shortest-word-distance
509,Fibonacci Number,67.2%,Easy,0.22873204718012582, https://leetcode.com/problems/fibonacci-number
768,Max Chunks To Make Sorted II,48.7%,Hard,0.22767870647960103, https://leetcode.com/problems/max-chunks-to-make-sorted-ii
104,Maximum Depth of Binary Tree,66.0%,Easy,0.2247057029374007, https://leetcode.com/problems/maximum-depth-of-binary-tree
701,Insert into a Binary Search Tree,77.7%,Medium,0.22337817376865485, https://leetcode.com/problems/insert-into-a-binary-search-tree
341,Flatten Nested List Iterator,52.9%,Medium,0.2209211036876481, https://leetcode.com/problems/flatten-nested-list-iterator
231,Power of Two,43.7%,Easy,0.2188289731364177, https://leetcode.com/problems/power-of-two
317,Shortest Distance from All Buildings,41.4%,Hard,0.21654542918153205, https://leetcode.com/problems/shortest-distance-from-all-buildings
523,Continuous Subarray Sum,24.6%,Medium,0.21568639520612767, https://leetcode.com/problems/continuous-subarray-sum
158,Read N Characters Given Read4 II - Call multiple times,33.8%,Hard,0.21421194491522716, https://leetcode.com/problems/read-n-characters-given-read4-ii-call-multiple-times
205,Isomorphic Strings,39.8%,Easy,0.21117085755971557, https://leetcode.com/problems/isomorphic-strings
107,Binary Tree Level Order Traversal II,53.5%,Easy,0.2086357266305724, https://leetcode.com/problems/binary-tree-level-order-traversal-ii
717,1-bit and 2-bit Characters,48.8%,Easy,0.20727941516730314, https://leetcode.com/problems/1-bit-and-2-bit-characters
290,Word Pattern,37.0%,Easy,0.20496634325524304, https://leetcode.com/problems/word-pattern
463,Island Perimeter,65.7%,Easy,0.20102047685235075, https://leetcode.com/problems/island-perimeter
568,Maximum Vacation Days,40.8%,Hard,0.19966567025192705, https://leetcode.com/problems/maximum-vacation-days
209,Minimum Size Subarray Sum,38.2%,Medium,0.1916428563693859, https://leetcode.com/problems/minimum-size-subarray-sum
210,Course Schedule II,40.7%,Medium,0.19114245113569317, https://leetcode.com/problems/course-schedule-ii
219,Contains Duplicate II,37.7%,Easy,0.18696862869341266, https://leetcode.com/problems/contains-duplicate-ii
299,Bulls and Cows,42.4%,Easy,0.1826623303532244, https://leetcode.com/problems/bulls-and-cows
187,Repeated DNA Sequences,38.9%,Medium,0.18218832116655082, https://leetcode.com/problems/repeated-dna-sequences
284,Peeking Iterator,45.7%,Medium,0.1802129634981955, https://leetcode.com/problems/peeking-iterator
547,Friend Circles,58.6%,Medium,0.17970355268064825, https://leetcode.com/problems/friend-circles
437,Path Sum III,47.2%,Medium,0.17834783920071107, https://leetcode.com/problems/path-sum-iii
773,Sliding Puzzle,59.3%,Hard,0.17627924233799203, https://leetcode.com/problems/sliding-puzzle
987,Vertical Order Traversal of a Binary Tree,36.6%,Medium,0.17117447745078015, https://leetcode.com/problems/vertical-order-traversal-of-a-binary-tree
843,Guess the Word,46.1%,Hard,0.17062551703076334, https://leetcode.com/problems/guess-the-word
367,Valid Perfect Square,41.7%,Easy,0.16978101623607908, https://leetcode.com/problems/valid-perfect-square
609,Find Duplicate File in System,59.5%,Medium,0.16971838464062922, https://leetcode.com/problems/find-duplicate-file-in-system
784,Letter Case Permutation,64.6%,Medium,0.16909907515089384, https://leetcode.com/problems/letter-case-permutation
325,Maximum Size Subarray Sum Equals k,46.8%,Medium,0.16882086957505205, https://leetcode.com/problems/maximum-size-subarray-sum-equals-k
680,Valid Palindrome II,36.6%,Easy,0.1679540228531573, https://leetcode.com/problems/valid-palindrome-ii
489,Robot Room Cleaner,69.7%,Hard,0.16758021585734428, https://leetcode.com/problems/robot-room-cleaner
399,Evaluate Division,51.6%,Medium,0.16222534433150315, https://leetcode.com/problems/evaluate-division
653,Two Sum IV - Input is a BST,55.5%,Easy,0.16169480776777312, https://leetcode.com/problems/two-sum-iv-input-is-a-bst
662,Maximum Width of Binary Tree,41.0%,Medium,0.16006134199074026, https://leetcode.com/problems/maximum-width-of-binary-tree
222,Count Complete Tree Nodes,46.8%,Medium,0.15947973572471308, https://leetcode.com/problems/count-complete-tree-nodes
721,Accounts Merge,48.8%,Medium,0.15836350116973763, https://leetcode.com/problems/accounts-merge
131,Palindrome Partitioning,47.5%,Medium,0.15829229898055353, https://leetcode.com/problems/palindrome-partitioning
271,Encode and Decode Strings,31.5%,Medium,0.15521621002929656, https://leetcode.com/problems/encode-and-decode-strings
373,Find K Pairs with Smallest Sums,36.7%,Medium,0.15386549516826, https://leetcode.com/problems/find-k-pairs-with-smallest-sums
979,Distribute Coins in Binary Tree,68.9%,Medium,0.15348688956060175, https://leetcode.com/problems/distribute-coins-in-binary-tree
632,Smallest Range Covering Elements from K Lists,52.4%,Hard,0.15283920422944758, https://leetcode.com/problems/smallest-range-covering-elements-from-k-lists
833,Find And Replace in String,50.4%,Medium,0.1506602748874898, https://leetcode.com/problems/find-and-replace-in-string
365,Water and Jug Problem,30.6%,Medium,0.14565275315686743, https://leetcode.com/problems/water-and-jug-problem
1381,Design a Stack With Increment Operation,74.7%,Medium,0.1453140980267603, https://leetcode.com/problems/design-a-stack-with-increment-operation
939,Minimum Area Rectangle,51.8%,Medium,0.14413390158378703, https://leetcode.com/problems/minimum-area-rectangle
16,3Sum Closest,46.0%,Medium,0.14234512850929823, https://leetcode.com/problems/3sum-closest
769,Max Chunks To Make Sorted,54.8%,Medium,0.14019808398271194, https://leetcode.com/problems/max-chunks-to-make-sorted
176,Second Highest Salary,31.6%,Easy,0.1400039071301401, https://leetcode.com/problems/second-highest-salary
279,Perfect Squares,47.4%,Medium,0.13815033848081718, https://leetcode.com/problems/perfect-squares
282,Expression Add Operators,35.5%,Hard,0.13310419432681886, https://leetcode.com/problems/expression-add-operators
1143,Longest Common Subsequence,58.4%,Medium,0.13278227696210623, https://leetcode.com/problems/longest-common-subsequence
305,Number of Islands II,40.1%,Hard,0.1304306149462744, https://leetcode.com/problems/number-of-islands-ii
217,Contains Duplicate,56.0%,Easy,0.12838116664820678, https://leetcode.com/problems/contains-duplicate
707,Design Linked List,24.5%,Medium,0.12796988096337653, https://leetcode.com/problems/design-linked-list
612,Shortest Distance in a Plane,59.5%,Medium,0.1271551754852466, https://leetcode.com/problems/shortest-distance-in-a-plane
621,Task Scheduler,50.1%,Medium,0.12387972474581618, https://leetcode.com/problems/task-scheduler
704,Binary Search,52.1%,Easy,0.12265353454721256, https://leetcode.com/problems/binary-search
844,Backspace String Compare,46.4%,Easy,0.12201137176590456, https://leetcode.com/problems/backspace-string-compare
1114,Print in Order,65.7%,Easy,0.12136085700426744, https://leetcode.com/problems/print-in-order
323,Number of Connected Components in an Undirected Graph,56.0%,Medium,0.12008412526365206, https://leetcode.com/problems/number-of-connected-components-in-an-undirected-graph
525,Contiguous Array,42.8%,Medium,0.11750591219610916, https://leetcode.com/problems/contiguous-array
739,Daily Temperatures,63.3%,Medium,0.11646575243222568, https://leetcode.com/problems/daily-temperatures
515,Find Largest Value in Each Tree Row,61.1%,Medium,0.11375888535665801, https://leetcode.com/problems/find-largest-value-in-each-tree-row
671,Second Minimum Node In a Binary Tree,42.7%,Easy,0.11343592966337171, https://leetcode.com/problems/second-minimum-node-in-a-binary-tree
532,K-diff Pairs in an Array,31.6%,Easy,0.111723209445655, https://leetcode.com/problems/k-diff-pairs-in-an-array
973,K Closest Points to Origin,63.8%,Medium,0.11087510283099485, https://leetcode.com/problems/k-closest-points-to-origin
1008,Construct Binary Search Tree from Preorder Traversal,78.4%,Medium,0.11004936619718413, https://leetcode.com/problems/construct-binary-search-tree-from-preorder-traversal
213,House Robber II,36.5%,Medium,0.10850742141601913, https://leetcode.com/problems/house-robber-ii
852,Peak Index in a Mountain Array,71.6%,Easy,0.10821358464023274, https://leetcode.com/problems/peak-index-in-a-mountain-array
311,Sparse Matrix Multiplication,61.9%,Medium,0.10648348040245009, https://leetcode.com/problems/sparse-matrix-multiplication
1386,Cinema Seat Allocation,34.8%,Medium,0.10648348040245009, https://leetcode.com/problems/cinema-seat-allocation
406,Queue Reconstruction by Height,66.9%,Medium,0.10607646342422336, https://leetcode.com/problems/queue-reconstruction-by-height
34,Find First and Last Position of Element in Sorted Array,36.2%,Medium,0.10112681359490523, https://leetcode.com/problems/find-first-and-last-position-of-element-in-sorted-array
658,Find K Closest Elements,40.9%,Medium,0.0995648587647672, https://leetcode.com/problems/find-k-closest-elements
90,Subsets II,47.1%,Medium,0.09830555874512009, https://leetcode.com/problems/subsets-ii
1038,Binary Search Tree to Greater Sum Tree,80.8%,Medium,0.09811785595852335, https://leetcode.com/problems/binary-search-tree-to-greater-sum-tree
785,Is Graph Bipartite?,47.5%,Medium,0.09684982598991766, https://leetcode.com/problems/is-graph-bipartite
220,Contains Duplicate III,20.9%,Medium,0.09599691440839975, https://leetcode.com/problems/contains-duplicate-iii
895,Maximum Frequency Stack,60.6%,Hard,0.09490784626439754, https://leetcode.com/problems/maximum-frequency-stack
381,Insert Delete GetRandom O(1) - Duplicates allowed,34.1%,Hard,0.09106388892287375, https://leetcode.com/problems/insert-delete-getrandom-o1-duplicates-allowed
1324,Print Words Vertically,57.9%,Medium,0.09055957704572704, https://leetcode.com/problems/print-words-vertically
414,Third Maximum Number,30.5%,Easy,0.08956753807644377, https://leetcode.com/problems/third-maximum-number
1116,Print Zero Even Odd,56.0%,Medium,0.08934510033584994, https://leetcode.com/problems/print-zero-even-odd
907,Sum of Subarray Minimums,32.3%,Medium,0.08934510033584994, https://leetcode.com/problems/sum-of-subarray-minimums
819,Most Common Word,44.8%,Easy,0.0888376652987074, https://leetcode.com/problems/most-common-word
256,Paint House,52.1%,Easy,0.08650924290928251, https://leetcode.com/problems/paint-house
27,Remove Element,48.2%,Easy,0.08523043261863501, https://leetcode.com/problems/remove-element
703,Kth Largest Element in a Stream,49.7%,Easy,0.08385735299772534, https://leetcode.com/problems/kth-largest-element-in-a-stream
905,Sort Array By Parity,74.1%,Easy,0.08328510247304294, https://leetcode.com/problems/sort-array-by-parity
278,First Bad Version,35.7%,Easy,0.08295984140240989, https://leetcode.com/problems/first-bad-version
359,Logger Rate Limiter,70.8%,Easy,0.08167803101426718, https://leetcode.com/problems/logger-rate-limiter
643,Maximum Average Subarray I,41.5%,Easy,0.08105244450653293, https://leetcode.com/problems/maximum-average-subarray-i
96,Unique Binary Search Trees,52.9%,Medium,0.08025695513016742, https://leetcode.com/problems/unique-binary-search-trees
60,Permutation Sequence,38.4%,Hard,0.07948571541724253, https://leetcode.com/problems/permutation-sequence
1104,Path In Zigzag Labelled Binary Tree,72.0%,Medium,0.07786032177227234, https://leetcode.com/problems/path-in-zigzag-labelled-binary-tree
435,Non-overlapping Intervals,42.9%,Medium,0.07565042495900788, https://leetcode.com/problems/non-overlapping-intervals
480,Sliding Window Median,37.2%,Hard,0.0743529801177063, https://leetcode.com/problems/sliding-window-median
1079,Letter Tile Possibilities,75.4%,Medium,0.07350246199292652, https://leetcode.com/problems/letter-tile-possibilities
503,Next Greater Element II,56.5%,Medium,0.07339377143296942, https://leetcode.com/problems/next-greater-element-ii
144,Binary Tree Preorder Traversal,55.7%,Medium,0.0722495403534662, https://leetcode.com/problems/binary-tree-preorder-traversal
676,Implement Magic Dictionary,54.5%,Medium,0.06995858860691037, https://leetcode.com/problems/implement-magic-dictionary
1027,Longest Arithmetic Sequence,53.4%,Medium,0.06693948267510934, https://leetcode.com/problems/longest-arithmetic-sequence
1145,Binary Tree Coloring Game,51.2%,Medium,0.06592172080482424, https://leetcode.com/problems/binary-tree-coloring-game
1304,Find N Unique Integers Sum up to Zero,76.3%,Easy,0.06210765548004028, https://leetcode.com/problems/find-n-unique-integers-sum-up-to-zero
350,Intersection of Two Arrays II,51.4%,Easy,0.06202949919751832, https://leetcode.com/problems/intersection-of-two-arrays-ii
472,Concatenated Words,43.7%,Hard,0.06120196522807572, https://leetcode.com/problems/concatenated-words
796,Rotate String,49.6%,Easy,0.059778751425839334, https://leetcode.com/problems/rotate-string
47,Permutations II,46.4%,Medium,0.05897935516253239, https://leetcode.com/problems/permutations-ii
630,Course Schedule III,33.5%,Hard,0.058581901624802396, https://leetcode.com/problems/course-schedule-iii
111,Minimum Depth of Binary Tree,37.4%,Easy,0.05806209779650968, https://leetcode.com/problems/minimum-depth-of-binary-tree
100,Same Tree,53.4%,Easy,0.05782550765396603, https://leetcode.com/problems/same-tree
832,Flipping an Image,76.2%,Easy,0.057363394879920204, https://leetcode.com/problems/flipping-an-image
950,Reveal Cards In Increasing Order,74.6%,Medium,0.056592185311170023, https://leetcode.com/problems/reveal-cards-in-increasing-order
541,Reverse String II,48.4%,Easy,0.05615948403872344, https://leetcode.com/problems/reverse-string-ii
735,Asteroid Collision,41.0%,Medium,0.05479154882968245, https://leetcode.com/problems/asteroid-collision
1229,Meeting Scheduler,52.7%,Medium,0.053560323833736816, https://leetcode.com/problems/meeting-scheduler
1092,Shortest Common Supersequence ,51.6%,Hard,0.053488684950986194, https://leetcode.com/problems/shortest-common-supersequence
303,Range Sum Query - Immutable,44.7%,Easy,0.05194286677525062, https://leetcode.com/problems/range-sum-query-immutable
981,Time Based Key-Value Store,53.1%,Medium,0.049406315387071284, https://leetcode.com/problems/time-based-key-value-store
67,Add Binary,45.2%,Easy,0.049093096377302976, https://leetcode.com/problems/add-binary
459,Repeated Substring Pattern,42.2%,Easy,0.04752742385552696, https://leetcode.com/problems/repeated-substring-pattern
845,Longest Mountain in Array,37.2%,Medium,0.047458490406358134, https://leetcode.com/problems/longest-mountain-in-array
876,Middle of the Linked List,68.4%,Easy,0.046728740327781716, https://leetcode.com/problems/middle-of-the-linked-list
977,Squares of a Sorted Array,72.1%,Easy,0.046652914831048324, https://leetcode.com/problems/squares-of-a-sorted-array
670,Maximum Swap,43.6%,Medium,0.04630456804168632, https://leetcode.com/problems/maximum-swap
494,Target Sum,46.3%,Medium,0.04353244473664264, https://leetcode.com/problems/target-sum
938,Range Sum of BST,81.3%,Easy,0.043035900859132004, https://leetcode.com/problems/range-sum-of-bst
1004,Max Consecutive Ones III,59.1%,Medium,0.041252411938220004, https://leetcode.com/problems/max-consecutive-ones-iii
211,Add and Search Word - Data structure design,38.1%,Medium,0.04111576039097048, https://leetcode.com/problems/add-and-search-word-data-structure-design
35,Search Insert Position,42.6%,Easy,0.041064163611348584, https://leetcode.com/problems/search-insert-position
788,Rotated Digits,57.1%,Easy,0.03980625040041967, https://leetcode.com/problems/rotated-digits
872,Leaf-Similar Trees,64.5%,Easy,0.03899974309382511, https://leetcode.com/problems/leaf-similar-trees
884,Uncommon Words from Two Sentences,63.3%,Easy,0.036301626676214796, https://leetcode.com/problems/uncommon-words-from-two-sentences
934,Shortest Bridge,48.2%,Medium,0.03607244121670154, https://leetcode.com/problems/shortest-bridge
650,2 Keys Keyboard,49.2%,Medium,0.035910501305770864, https://leetcode.com/problems/2-keys-keyboard
929,Unique Email Addresses,67.4%,Easy,0.033748984736641036, https://leetcode.com/problems/unique-email-addresses
485,Max Consecutive Ones,54.6%,Easy,0.03276403666757628, https://leetcode.com/problems/max-consecutive-ones
258,Add Digits,57.6%,Easy,0.03259608198749547, https://leetcode.com/problems/add-digits
203,Remove Linked List Elements,38.6%,Easy,0.032376928724459735, https://leetcode.com/problems/remove-linked-list-elements
1091,Shortest Path in Binary Matrix,38.2%,Medium,0.03164821095078173, https://leetcode.com/problems/shortest-path-in-binary-matrix
867,Transpose Matrix,62.8%,Easy,0.031179454774354007, https://leetcode.com/problems/transpose-matrix
953,Verifying an Alien Dictionary,54.1%,Easy,0.03117337947619734, https://leetcode.com/problems/verifying-an-alien-dictionary
575,Distribute Candies,61.4%,Easy,0.030890487019338404, https://leetcode.com/problems/distribute-candies
1192,Critical Connections in a Network,48.6%,Hard,0.030183377823098576, https://leetcode.com/problems/critical-connections-in-a-network
452,Minimum Number of Arrows to Burst Balloons,49.6%,Medium,0.029478921626711667, https://leetcode.com/problems/minimum-number-of-arrows-to-burst-balloons
496,Next Greater Element I,63.8%,Easy,0.029462032730316202, https://leetcode.com/problems/next-greater-element-i
338,Counting Bits,69.5%,Medium,0.024325523767440974, https://leetcode.com/problems/counting-bits
1344,Angle Between Hands of a Clock,61.4%,Medium,0.023682900893022413, https://leetcode.com/problems/angle-between-hands-of-a-clock
1019,Next Greater Node In Linked List,57.4%,Medium,0.02159911180346178, https://leetcode.com/problems/next-greater-node-in-linked-list
1122,Relative Sort Array,67.7%,Easy,0.019685675071030327, https://leetcode.com/problems/relative-sort-array
674,Longest Continuous Increasing Subsequence,45.9%,Easy,0.01900294712561538, https://leetcode.com/problems/longest-continuous-increasing-subsequence
1155,Number of Dice Rolls With Target Sum,49.0%,Medium,0.018904154639152678, https://leetcode.com/problems/number-of-dice-rolls-with-target-sum
787,Cheapest Flights Within K Stops,39.3%,Medium,0.018824085245635554, https://leetcode.com/problems/cheapest-flights-within-k-stops
743,Network Delay Time,45.0%,Medium,0.012743084194281933, https://leetcode.com/problems/network-delay-time
1249,Minimum Remove to Make Valid Parentheses,62.5%,Medium,0.009195467093100304, https://leetcode.com/problems/minimum-remove-to-make-valid-parentheses
1470,Shuffle the Array,88.9%,Easy,0.004527967890154029, https://leetcode.com/problems/shuffle-the-array
513,Find Bottom Left Tree Value,61.5%,Medium,0, https://leetcode.com/problems/find-bottom-left-tree-value
631,Design Excel Sum Formula,31.6%,Hard,0, https://leetcode.com/problems/design-excel-sum-formula
654,Maximum Binary Tree,79.9%,Medium,0, https://leetcode.com/problems/maximum-binary-tree
672,Bulb Switcher II,50.9%,Medium,0, https://leetcode.com/problems/bulb-switcher-ii
871,Minimum Number of Refueling Stops,31.4%,Hard,0, https://leetcode.com/problems/minimum-number-of-refueling-stops
886,Possible Bipartition,44.2%,Medium,0, https://leetcode.com/problems/possible-bipartition
901,Online Stock Span,60.2%,Medium,0, https://leetcode.com/problems/online-stock-span
972,Equal Rational Numbers,41.6%,Hard,0, https://leetcode.com/problems/equal-rational-numbers
1006,Clumsy Factorial,53.3%,Medium,0, https://leetcode.com/problems/clumsy-factorial
1013,Partition Array Into Three Parts With Equal Sum,51.8%,Easy,0, https://leetcode.com/problems/partition-array-into-three-parts-with-equal-sum
1053,Previous Permutation With One Swap,48.5%,Medium,0, https://leetcode.com/problems/previous-permutation-with-one-swap
1198,Find Smallest Common Element in All Rows,74.9%,Medium,0, https://leetcode.com/problems/find-smallest-common-element-in-all-rows
1093,Statistics from a Large Sample,48.2%,Medium,0, https://leetcode.com/problems/statistics-from-a-large-sample
1273,Delete Tree Nodes,63.5%,Medium,0, https://leetcode.com/problems/delete-tree-nodes
1131,Maximum of Absolute Value Expression,53.0%,Medium,0, https://leetcode.com/problems/maximum-of-absolute-value-expression
1206,Design Skiplist,57.3%,Hard,0, https://leetcode.com/problems/design-skiplist
1285,Find the Start and End Number of Continuous Ranges,83.8%,Medium,0, https://leetcode.com/problems/find-the-start-and-end-number-of-continuous-ranges
1306,Jump Game III,60.4%,Medium,0, https://leetcode.com/problems/jump-game-iii
1318,Minimum Flips to Make a OR b Equal to c,62.8%,Medium,0, https://leetcode.com/problems/minimum-flips-to-make-a-or-b-equal-to-c
1339,Maximum Product of Splitted Binary Tree,37.2%,Medium,0, https://leetcode.com/problems/maximum-product-of-splitted-binary-tree
1371,Find the Longest Substring Containing Vowels in Even Counts,58.2%,Medium,0, https://leetcode.com/problems/find-the-longest-substring-containing-vowels-in-even-counts
1369,Get the Second Most Recent Activity,65.1%,Hard,0, https://leetcode.com/problems/get-the-second-most-recent-activity
1394,Find Lucky Integer in an Array,64.4%,Easy,0, https://leetcode.com/problems/find-lucky-integer-in-an-array
1415,The k-th Lexicographical String of All Happy Strings of Length n,70.4%,Medium,0, https://leetcode.com/problems/the-k-th-lexicographical-string-of-all-happy-strings-of-length-n
1417,Reformat The String,55.0%,Easy,0, https://leetcode.com/problems/reformat-the-string
1448,Count Good Nodes in Binary Tree,70.4%,Medium,0, https://leetcode.com/problems/count-good-nodes-in-binary-tree
1458,Max Dot Product of Two Subsequences,41.7%,Hard,0, https://leetcode.com/problems/max-dot-product-of-two-subsequences
1469,Find All The Lonely Nodes,81.4%,Easy,0, https://leetcode.com/problems/find-all-the-lonely-nodes
1510,Stone Game IV,50.3%,Hard,0, https://leetcode.com/problems/stone-game-iv
1474,Delete N Nodes After M Nodes of a Linked List,74.2%,Easy,0, https://leetcode.com/problems/delete-n-nodes-after-m-nodes-of-a-linked-list
1523,Count Odd Numbers in an Interval Range,55.8%,Easy,0, https://leetcode.com/problems/count-odd-numbers-in-an-interval-range
1518,Water Bottles,63.1%,Easy,0, https://leetcode.com/problems/water-bottles
1539,Kth Missing Positive Number,52.3%,Easy,0, https://leetcode.com/problems/kth-missing-positive-number
1528,Shuffle String,86.1%,Easy,0, https://leetcode.com/problems/shuffle-string
1 138 Copy List with Random Pointer 36.4% Medium 3.6989651187651815 https://leetcode.com/problems/copy-list-with-random-pointer
2 1 Two Sum 45.6% Easy 3.5958778464490746 https://leetcode.com/problems/two-sum
3 146 LRU Cache 33.2% Medium 3.4927905741329677 https://leetcode.com/problems/lru-cache
4 54 Spiral Matrix 34.1% Medium 3.3897033018168607 https://leetcode.com/problems/spiral-matrix
5 273 Integer to English Words 27.1% Hard 3.3683427542207363 https://leetcode.com/problems/integer-to-english-words
6 277 Find the Celebrity 41.8% Medium 3.2652554819046293 https://leetcode.com/problems/find-the-celebrity
7 348 Design Tic-Tac-Toe 54.3% Medium 3.1946430571909312 https://leetcode.com/problems/design-tic-tac-toe
8 2 Add Two Numbers 33.9% Medium 3.169227011144196 https://leetcode.com/problems/add-two-numbers
9 42 Trapping Rain Water 48.9% Hard 3.066139738828089 https://leetcode.com/problems/trapping-rain-water
10 206 Reverse Linked List 62.5% Easy 3.0259163333793904 https://leetcode.com/problems/reverse-linked-list
11 5 Longest Palindromic Substring 29.5% Medium 3.0113240473668283 https://leetcode.com/problems/longest-palindromic-substring
12 8 String to Integer (atoi) 15.4% Medium 2.9764877691901113 https://leetcode.com/problems/string-to-integer-atoi
13 200 Number of Islands 46.8% Medium 2.9715009566629704 https://leetcode.com/problems/number-of-islands
14 4 Median of Two Sorted Arrays 29.6% Hard 2.8916084554209203 https://leetcode.com/problems/median-of-two-sorted-arrays
15 186 Reverse Words in a String II 43.3% Medium 2.8809479839142873 https://leetcode.com/problems/reverse-words-in-a-string-ii
16 88 Merge Sorted Array 39.4% Easy 2.8627089563250068 https://leetcode.com/problems/merge-sorted-array
17 21 Merge Two Sorted Lists 53.5% Easy 2.862457260385365 https://leetcode.com/problems/merge-two-sorted-lists
18 17 Letter Combinations of a Phone Number 46.8% Medium 2.8573648034706545 https://leetcode.com/problems/letter-combinations-of-a-phone-number
19 218 The Skyline Problem 34.6% Hard 2.8027736985781786 https://leetcode.com/problems/the-skyline-problem
20 165 Compare Version Numbers 27.4% Medium 2.7909478091274953 https://leetcode.com/problems/compare-version-numbers
21 25 Reverse Nodes in k-Group 42.1% Hard 2.7613797410092618 https://leetcode.com/problems/reverse-nodes-in-k-group
22 240 Search a 2D Matrix II 43.2% Medium 2.7345899073645548 https://leetcode.com/problems/search-a-2d-matrix-ii
23 253 Meeting Rooms II 45.7% Medium 2.7284716366094606 https://leetcode.com/problems/meeting-rooms-ii
24 10 Regular Expression Matching 26.8% Hard 2.7266995930211992 https://leetcode.com/problems/regular-expression-matching
25 53 Maximum Subarray 46.5% Easy 2.711940371971745 https://leetcode.com/problems/maximum-subarray
26 33 Search in Rotated Sorted Array 34.5% Medium 2.6857170372662447 https://leetcode.com/problems/search-in-rotated-sorted-array
27 297 Serialize and Deserialize Binary Tree 47.5% Hard 2.5826297649501377 https://leetcode.com/problems/serialize-and-deserialize-binary-tree
28 236 Lowest Common Ancestor of a Binary Tree 45.7% Medium 2.568849235431705 https://leetcode.com/problems/lowest-common-ancestor-of-a-binary-tree
29 445 Add Two Numbers II 54.5% Medium 2.529048190547753 https://leetcode.com/problems/add-two-numbers-ii
30 116 Populating Next Right Pointers in Each Node 45.2% Medium 2.524874081924768 https://leetcode.com/problems/populating-next-right-pointers-in-each-node
31 23 Merge k Sorted Lists 40.2% Hard 2.500573730617639 https://leetcode.com/problems/merge-k-sorted-lists
32 20 Valid Parentheses 39.0% Easy 2.4687161355055203 https://leetcode.com/problems/valid-parentheses
33 402 Remove K Digits 28.4% Medium 2.4166575492538938 https://leetcode.com/problems/remove-k-digits
34 557 Reverse Words in a String III 69.8% Easy 2.336667524726581 https://leetcode.com/problems/reverse-words-in-a-string-iii
35 722 Remove Comments 34.6% Medium 2.331903153750657 https://leetcode.com/problems/remove-comments
36 75 Sort Colors 47.3% Medium 2.3276926686708626 https://leetcode.com/problems/sort-colors
37 24 Swap Nodes in Pairs 50.4% Medium 2.327380452152487 https://leetcode.com/problems/swap-nodes-in-pairs
38 151 Reverse Words in a String 21.9% Medium 2.3264780134045004 https://leetcode.com/problems/reverse-words-in-a-string
39 535 Encode and Decode TinyURL 79.9% Medium 2.3039774779456117 https://leetcode.com/problems/encode-and-decode-tinyurl
40 48 Rotate Image 56.7% Medium 2.303733858197919 https://leetcode.com/problems/rotate-image
41 98 Validate Binary Search Tree 27.8% Medium 2.2943555684399337 https://leetcode.com/problems/validate-binary-search-tree
42 168 Excel Sheet Column Title 31.1% Easy 2.2883104652014525 https://leetcode.com/problems/excel-sheet-column-title
43 105 Construct Binary Tree from Preorder and Inorder Traversal 48.8% Medium 2.283021466343346 https://leetcode.com/problems/construct-binary-tree-from-preorder-and-inorder-traversal
44 419 Battleships in a Board 70.0% Medium 2.2726225948204313 https://leetcode.com/problems/battleships-in-a-board
45 223 Rectangle Area 37.8% Medium 2.2593091095122237 https://leetcode.com/problems/rectangle-area
46 171 Excel Sheet Column Number 55.9% Easy 2.252757238907828 https://leetcode.com/problems/excel-sheet-column-number
47 121 Best Time to Buy and Sell Stock 50.5% Easy 2.2448336717447694 https://leetcode.com/problems/best-time-to-buy-and-sell-stock
48 224 Basic Calculator 36.8% Hard 2.2034434298807333 https://leetcode.com/problems/basic-calculator
49 1239 Maximum Length of a Concatenated String with Unique Characters 47.8% Medium 2.194070311537135 https://leetcode.com/problems/maximum-length-of-a-concatenated-string-with-unique-characters
50 44 Wildcard Matching 24.7% Hard 2.191381777704533 https://leetcode.com/problems/wildcard-matching
51 794 Valid Tic-Tac-Toe State 32.6% Medium 2.1777117631126375 https://leetcode.com/problems/valid-tic-tac-toe-state
52 545 Boundary of Binary Tree 38.9% Medium 2.1677790029375226 https://leetcode.com/problems/boundary-of-binary-tree
53 134 Gas Station 38.5% Medium 2.142566589871282 https://leetcode.com/problems/gas-station
54 22 Generate Parentheses 62.7% Medium 2.0785670335349034 https://leetcode.com/problems/generate-parentheses
55 73 Set Matrix Zeroes 43.1% Medium 2.0775918912648 https://leetcode.com/problems/set-matrix-zeroes
56 428 Serialize and Deserialize N-ary Tree 59.4% Hard 2.076668713601008 https://leetcode.com/problems/serialize-and-deserialize-n-ary-tree
57 443 String Compression 41.3% Easy 2.0513907055271603 https://leetcode.com/problems/string-compression
58 450 Delete Node in a BST 43.1% Medium 2.048205702566481 https://leetcode.com/problems/delete-node-in-a-bst
59 13 Roman to Integer 55.7% Easy 2.01479997556304 https://leetcode.com/problems/roman-to-integer
60 235 Lowest Common Ancestor of a Binary Search Tree 49.9% Easy 2.0107138401241684 https://leetcode.com/problems/lowest-common-ancestor-of-a-binary-search-tree
61 103 Binary Tree Zigzag Level Order Traversal 48.3% Medium 2.010536070419761 https://leetcode.com/problems/binary-tree-zigzag-level-order-traversal
62 212 Word Search II 34.9% Hard 1.9371085874627856 https://leetcode.com/problems/word-search-ii
63 117 Populating Next Right Pointers in Each Node II 39.1% Medium 1.9167709936539865 https://leetcode.com/problems/populating-next-right-pointers-in-each-node-ii
64 344 Reverse String 68.5% Easy 1.8931494469290506 https://leetcode.com/problems/reverse-string
65 208 Implement Trie (Prefix Tree) 49.4% Medium 1.8703411019596332 https://leetcode.com/problems/implement-trie-prefix-tree
66 43 Multiply Strings 33.9% Medium 1.8392290485002738 https://leetcode.com/problems/multiply-strings
67 285 Inorder Successor in BST 40.4% Medium 1.8053129785679367 https://leetcode.com/problems/inorder-successor-in-bst
68 49 Group Anagrams 56.9% Medium 1.804619099717657 https://leetcode.com/problems/group-anagrams
69 71 Simplify Path 32.6% Medium 1.7951689508806754 https://leetcode.com/problems/simplify-path
70 99 Recover Binary Search Tree 39.7% Hard 1.7775344782967077 https://leetcode.com/problems/recover-binary-search-tree
71 15 3Sum 26.8% Medium 1.7686547532150265 https://leetcode.com/problems/3sum
72 141 Linked List Cycle 41.1% Easy 1.7563603010788833 https://leetcode.com/problems/linked-list-cycle
73 232 Implement Queue using Stacks 49.6% Easy 1.749421031222925 https://leetcode.com/problems/implement-queue-using-stacks
74 12 Integer to Roman 55.1% Medium 1.746102779627118 https://leetcode.com/problems/integer-to-roman
75 37 Sudoku Solver 43.6% Hard 1.7414976344471667 https://leetcode.com/problems/sudoku-solver
76 72 Edit Distance 44.8% Hard 1.7323480343505713 https://leetcode.com/problems/edit-distance
77 295 Find Median from Data Stream 44.3% Hard 1.7185203068596524 https://leetcode.com/problems/find-median-from-data-stream
78 160 Intersection of Two Linked Lists 40.6% Easy 1.7175192044428398 https://leetcode.com/problems/intersection-of-two-linked-lists
79 36 Valid Sudoku 48.7% Medium 1.7143211698041672 https://leetcode.com/problems/valid-sudoku
80 3 Longest Substring Without Repeating Characters 30.4% Medium 1.7119508013774896 https://leetcode.com/problems/longest-substring-without-repeating-characters
81 143 Reorder List 37.1% Medium 1.6917986160352108 https://leetcode.com/problems/reorder-list
82 76 Minimum Window Substring 34.6% Hard 1.684498704459816 https://leetcode.com/problems/minimum-window-substring
83 46 Permutations 63.5% Medium 1.6727146787726128 https://leetcode.com/problems/permutations
84 102 Binary Tree Level Order Traversal 54.6% Medium 1.651417093517297 https://leetcode.com/problems/binary-tree-level-order-traversal
85 155 Min Stack 44.5% Easy 1.6375525909607844 https://leetcode.com/problems/min-stack
86 56 Merge Intervals 39.3% Medium 1.6137424284012196 https://leetcode.com/problems/merge-intervals
87 51 N-Queens 46.6% Hard 1.6036359898179926 https://leetcode.com/problems/n-queens
88 173 Binary Search Tree Iterator 56.6% Medium 1.5975171846753242 https://leetcode.com/problems/binary-search-tree-iterator
89 93 Restore IP Addresses 35.6% Medium 1.5917169493061911 https://leetcode.com/problems/restore-ip-addresses
90 636 Exclusive Time of Functions 51.9% Medium 1.5833981368525032 https://leetcode.com/problems/exclusive-time-of-functions
91 706 Design HashMap 61.3% Easy 1.5513741114793391 https://leetcode.com/problems/design-hashmap
92 238 Product of Array Except Self 60.1% Medium 1.539762660750497 https://leetcode.com/problems/product-of-array-except-self
93 149 Max Points on a Line 16.9% Hard 1.5309662969926052 https://leetcode.com/problems/max-points-on-a-line
94 139 Word Break 40.1% Medium 1.5067078235450475 https://leetcode.com/problems/word-break
95 31 Next Permutation 32.6% Medium 1.4952605643210366 https://leetcode.com/problems/next-permutation
96 61 Rotate List 30.0% Medium 1.4847733982613056 https://leetcode.com/problems/rotate-list
97 836 Rectangle Overlap 48.6% Easy 1.4453669442208494 https://leetcode.com/problems/rectangle-overlap
98 642 Design Search Autocomplete System 44.7% Hard 1.4351899882719135 https://leetcode.com/problems/design-search-autocomplete-system
99 227 Basic Calculator II 36.9% Medium 1.4336576098594838 https://leetcode.com/problems/basic-calculator-ii
100 127 Word Ladder 29.6% Medium 1.4284947156102672 https://leetcode.com/problems/word-ladder
101 322 Coin Change 35.5% Medium 1.4268982821969922 https://leetcode.com/problems/coin-change
102 564 Find the Closest Palindrome 19.7% Hard 1.425008873300581 https://leetcode.com/problems/find-the-closest-palindrome
103 59 Spiral Matrix II 53.9% Medium 1.4157990742225208 https://leetcode.com/problems/spiral-matrix-ii
104 74 Search a 2D Matrix 36.5% Medium 1.396449102597548 https://leetcode.com/problems/search-a-2d-matrix
105 384 Shuffle an Array 52.8% Medium 1.3892672714849832 https://leetcode.com/problems/shuffle-an-array
106 229 Majority Element II 35.6% Medium 1.3878563920773275 https://leetcode.com/problems/majority-element-ii
107 153 Find Minimum in Rotated Sorted Array 45.1% Medium 1.3737513023422454 https://leetcode.com/problems/find-minimum-in-rotated-sorted-array
108 174 Dungeon Game 32.3% Hard 1.3665611251341205 https://leetcode.com/problems/dungeon-game
109 92 Reverse Linked List II 38.8% Medium 1.3490528201879903 https://leetcode.com/problems/reverse-linked-list-ii
110 449 Serialize and Deserialize BST 52.0% Medium 1.3213393231925648 https://leetcode.com/problems/serialize-and-deserialize-bst
111 179 Largest Number 28.8% Medium 1.3181425718749433 https://leetcode.com/problems/largest-number
112 128 Longest Consecutive Sequence 45.1% Hard 1.2886456910504667 https://leetcode.com/problems/longest-consecutive-sequence
113 234 Palindrome Linked List 39.3% Easy 1.2857250051644113 https://leetcode.com/problems/palindrome-linked-list
114 239 Sliding Window Maximum 43.0% Hard 1.2723945373280132 https://leetcode.com/problems/sliding-window-maximum
115 346 Moving Average from Data Stream 70.9% Easy 1.2716814290610372 https://leetcode.com/problems/moving-average-from-data-stream
116 204 Count Primes 31.5% Easy 1.2703504777562535 https://leetcode.com/problems/count-primes
117 468 Validate IP Address 24.1% Medium 1.2627381135521876 https://leetcode.com/problems/validate-ip-address
118 135 Candy 31.6% Hard 1.2375419744850127 https://leetcode.com/problems/candy
119 287 Find the Duplicate Number 55.5% Medium 1.2333669019608022 https://leetcode.com/problems/find-the-duplicate-number
120 126 Word Ladder II 22.1% Hard 1.2241491835619676 https://leetcode.com/problems/word-ladder-ii
121 133 Clone Graph 34.8% Medium 1.212271607140631 https://leetcode.com/problems/clone-graph
122 679 24 Game 46.4% Hard 1.1994357786013692 https://leetcode.com/problems/24-game
123 142 Linked List Cycle II 37.3% Medium 1.179958785742859 https://leetcode.com/problems/linked-list-cycle-ii
124 328 Odd Even Linked List 55.7% Medium 1.168614944926649 https://leetcode.com/problems/odd-even-linked-list
125 148 Sort List 42.3% Medium 1.1657881739717664 https://leetcode.com/problems/sort-list
126 225 Implement Stack using Queues 45.1% Easy 1.1607390767279342 https://leetcode.com/problems/implement-stack-using-queues
127 283 Move Zeroes 57.8% Easy 1.1585213499895073 https://leetcode.com/problems/move-zeroes
128 124 Binary Tree Maximum Path Sum 34.3% Hard 1.134390381747712 https://leetcode.com/problems/binary-tree-maximum-path-sum
129 591 Tag Validator 34.3% Hard 1.133098464739279 https://leetcode.com/problems/tag-validator
130 41 First Missing Positive 32.0% Hard 1.1262068083309473 https://leetcode.com/problems/first-missing-positive
131 268 Missing Number 51.7% Easy 1.117112634548289 https://leetcode.com/problems/missing-number
132 94 Binary Tree Inorder Traversal 63.3% Medium 1.1043650482569707 https://leetcode.com/problems/binary-tree-inorder-traversal
133 85 Maximal Rectangle 37.7% Hard 1.075986889150131 https://leetcode.com/problems/maximal-rectangle
134 529 Minesweeper 59.1% Medium 1.0687593255184287 https://leetcode.com/problems/minesweeper
135 252 Meeting Rooms 54.6% Easy 1.0686699320530313 https://leetcode.com/problems/meeting-rooms
136 403 Frog Jump 39.7% Hard 1.0638726563743854 https://leetcode.com/problems/frog-jump
137 215 Kth Largest Element in an Array 55.4% Medium 1.0621118864485832 https://leetcode.com/problems/kth-largest-element-in-an-array
138 189 Rotate Array 34.7% Easy 1.0531076560110935 https://leetcode.com/problems/rotate-array
139 490 The Maze 51.4% Medium 1.0476840243995968 https://leetcode.com/problems/the-maze
140 457 Circular Array Loop 29.4% Medium 1.0336744862315626 https://leetcode.com/problems/circular-array-loop
141 380 Insert Delete GetRandom O(1) 47.5% Medium 1.029143465930734 https://leetcode.com/problems/insert-delete-getrandom-o1
142 84 Largest Rectangle in Histogram 35.2% Hard 1.0152852763058668 https://leetcode.com/problems/largest-rectangle-in-histogram
143 19 Remove Nth Node From End of List 35.2% Medium 0.9938393087142735 https://leetcode.com/problems/remove-nth-node-from-end-of-list
144 169 Majority Element 58.7% Easy 0.96110239828995 https://leetcode.com/problems/majority-element
145 68 Text Justification 27.7% Hard 0.9465228638244356 https://leetcode.com/problems/text-justification
146 695 Max Area of Island 62.7% Medium 0.9340698215503037 https://leetcode.com/problems/max-area-of-island
147 79 Word Search 35.6% Medium 0.9160907785292691 https://leetcode.com/problems/word-search
148 237 Delete Node in a Linked List 63.8% Easy 0.9125441994897425 https://leetcode.com/problems/delete-node-in-a-linked-list
149 91 Decode Ways 24.7% Medium 0.8912568458516014 https://leetcode.com/problems/decode-ways
150 152 Maximum Product Subarray 31.7% Medium 0.890020140522056 https://leetcode.com/problems/maximum-product-subarray
151 32 Longest Valid Parentheses 28.4% Hard 0.887976006706294 https://leetcode.com/problems/longest-valid-parentheses
152 11 Container With Most Water 50.8% Medium 0.8838633903934879 https://leetcode.com/problems/container-with-most-water
153 289 Game of Life 54.5% Medium 0.8818919263853663 https://leetcode.com/problems/game-of-life
154 1246 Palindrome Removal 46.0% Hard 0.875792939010168 https://leetcode.com/problems/palindrome-removal
155 69 Sqrt(x) 33.9% Easy 0.8723735857287784 https://leetcode.com/problems/sqrtx
156 7 Reverse Integer 25.8% Easy 0.8578608494978868 https://leetcode.com/problems/reverse-integer
157 28 Implement strStr() 34.5% Easy 0.8553648003461056 https://leetcode.com/problems/implement-strstr
158 89 Gray Code 49.1% Medium 0.8553139353754396 https://leetcode.com/problems/gray-code
159 242 Valid Anagram 56.9% Easy 0.8538771239510634 https://leetcode.com/problems/valid-anagram
160 702 Search in a Sorted Array of Unknown Size 66.9% Medium 0.8458894094501456 https://leetcode.com/problems/search-in-a-sorted-array-of-unknown-size
161 460 LFU Cache 34.2% Hard 0.8452742509276767 https://leetcode.com/problems/lfu-cache
162 38 Count and Say 44.6% Easy 0.8451621282279073 https://leetcode.com/problems/count-and-say
163 772 Basic Calculator III 41.3% Hard 0.8430873278508602 https://leetcode.com/problems/basic-calculator-iii
164 651 4 Keys Keyboard 52.5% Medium 0.8425641237370047 https://leetcode.com/problems/4-keys-keyboard
165 340 Longest Substring with At Most K Distinct Characters 44.1% Hard 0.840073826640526 https://leetcode.com/problems/longest-substring-with-at-most-k-distinct-characters
166 378 Kth Smallest Element in a Sorted Matrix 54.3% Medium 0.8286514648404306 https://leetcode.com/problems/kth-smallest-element-in-a-sorted-matrix
167 269 Alien Dictionary 33.3% Hard 0.8247147627623457 https://leetcode.com/problems/alien-dictionary
168 9 Palindrome Number 48.4% Easy 0.8235694244095082 https://leetcode.com/problems/palindrome-number
169 622 Design Circular Queue 43.8% Medium 0.8231587572738468 https://leetcode.com/problems/design-circular-queue
170 26 Remove Duplicates from Sorted Array 45.1% Easy 0.8198157546148236 https://leetcode.com/problems/remove-duplicates-from-sorted-array
171 362 Design Hit Counter 63.7% Medium 0.8152055540667307 https://leetcode.com/problems/design-hit-counter
172 140 Word Break II 32.6% Hard 0.8122846793788384 https://leetcode.com/problems/word-break-ii
173 123 Best Time to Buy and Sell Stock III 37.5% Hard 0.8103008499673461 https://leetcode.com/problems/best-time-to-buy-and-sell-stock-iii
174 669 Trim a Binary Search Tree 63.0% Easy 0.805008260820865 https://leetcode.com/problems/trim-a-binary-search-tree
175 351 Android Unlock Patterns 48.4% Medium 0.7857399673877702 https://leetcode.com/problems/android-unlock-patterns
176 110 Balanced Binary Tree 43.5% Easy 0.7847320043954652 https://leetcode.com/problems/balanced-binary-tree
177 510 Inorder Successor in BST II 58.0% Medium 0.7822749604559527 https://leetcode.com/problems/inorder-successor-in-bst-ii
178 470 Implement Rand10() Using Rand7() 46.3% Medium 0.7717903078790584 https://leetcode.com/problems/implement-rand10-using-rand7
179 78 Subsets 62.0% Medium 0.7567934361936809 https://leetcode.com/problems/subsets
180 887 Super Egg Drop 27.1% Hard 0.7550319038990971 https://leetcode.com/problems/super-egg-drop
181 161 One Edit Distance 32.3% Medium 0.7501260358569138 https://leetcode.com/problems/one-edit-distance
182 62 Unique Paths 54.1% Medium 0.7480063652707217 https://leetcode.com/problems/unique-paths
183 394 Decode String 50.0% Medium 0.7345102340934244 https://leetcode.com/problems/decode-string
184 191 Number of 1 Bits 49.8% Easy 0.7324003471380575 https://leetcode.com/problems/number-of-1-bits
185 442 Find All Duplicates in an Array 67.8% Medium 0.7226546728293853 https://leetcode.com/problems/find-all-duplicates-in-an-array
186 207 Course Schedule 43.1% Medium 0.7160235932457453 https://leetcode.com/problems/course-schedule
187 39 Combination Sum 56.1% Medium 0.7152569247320627 https://leetcode.com/problems/combination-sum
188 652 Find Duplicate Subtrees 50.2% Medium 0.7105924664945938 https://leetcode.com/problems/find-duplicate-subtrees
189 560 Subarray Sum Equals K 43.9% Medium 0.7082042605360416 https://leetcode.com/problems/subarray-sum-equals-k
190 125 Valid Palindrome 36.7% Easy 0.7036117291497562 https://leetcode.com/problems/valid-palindrome
191 86 Partition List 41.5% Medium 0.7022543510090344 https://leetcode.com/problems/partition-list
192 688 Knight Probability in Chessboard 48.9% Medium 0.6794349186959634 https://leetcode.com/problems/knight-probability-in-chessboard
193 64 Minimum Path Sum 54.5% Medium 0.6731263364629722 https://leetcode.com/problems/minimum-path-sum
194 379 Design Phone Directory 46.8% Medium 0.6729444732424258 https://leetcode.com/problems/design-phone-directory
195 81 Search in Rotated Sorted Array II 33.0% Medium 0.6690496289808848 https://leetcode.com/problems/search-in-rotated-sorted-array-ii
196 412 Fizz Buzz 62.3% Easy 0.6683916389849122 https://leetcode.com/problems/fizz-buzz
197 417 Pacific Atlantic Water Flow 41.1% Medium 0.666478933477784 https://leetcode.com/problems/pacific-atlantic-water-flow
198 114 Flatten Binary Tree to Linked List 49.3% Medium 0.6498350640362595 https://leetcode.com/problems/flatten-binary-tree-to-linked-list
199 77 Combinations 54.7% Medium 0.6484298604423074 https://leetcode.com/problems/combinations
200 150 Evaluate Reverse Polish Notation 36.3% Medium 0.6476434251751189 https://leetcode.com/problems/evaluate-reverse-polish-notation
201 29 Divide Two Integers 16.4% Medium 0.6411919721433796 https://leetcode.com/problems/divide-two-integers
202 300 Longest Increasing Subsequence 42.6% Medium 0.6376640428342715 https://leetcode.com/problems/longest-increasing-subsequence
203 716 Max Stack 42.6% Easy 0.6330336058902137 https://leetcode.com/problems/max-stack
204 387 First Unique Character in a String 53.4% Easy 0.632243999450364 https://leetcode.com/problems/first-unique-character-in-a-string
205 647 Palindromic Substrings 60.6% Medium 0.6134746779188923 https://leetcode.com/problems/palindromic-substrings
206 863 All Nodes Distance K in Binary Tree 55.4% Medium 0.6086589499121026 https://leetcode.com/problems/all-nodes-distance-k-in-binary-tree
207 358 Rearrange String k Distance Apart 34.9% Hard 0.6082477367734591 https://leetcode.com/problems/rearrange-string-k-distance-apart
208 82 Remove Duplicates from Sorted List II 36.8% Medium 0.607321902630019 https://leetcode.com/problems/remove-duplicates-from-sorted-list-ii
209 733 Flood Fill 55.3% Easy 0.5960870214781206 https://leetcode.com/problems/flood-fill
210 228 Summary Ranges 39.5% Medium 0.5888553265052927 https://leetcode.com/problems/summary-ranges
211 759 Employee Free Time 66.3% Hard 0.5861248448271091 https://leetcode.com/problems/employee-free-time
212 407 Trapping Rain Water II 42.4% Hard 0.5801132920909243 https://leetcode.com/problems/trapping-rain-water-ii
213 230 Kth Smallest Element in a BST 60.2% Medium 0.5704757662017736 https://leetcode.com/problems/kth-smallest-element-in-a-bst
214 281 Zigzag Iterator 58.4% Medium 0.5665602602882338 https://leetcode.com/problems/zigzag-iterator
215 415 Add Strings 47.5% Easy 0.566230787928643 https://leetcode.com/problems/add-strings
216 572 Subtree of Another Tree 44.1% Easy 0.5649315643132164 https://leetcode.com/problems/subtree-of-another-tree
217 118 Pascal's Triangle 52.5% Easy 0.5577273046973674 https://leetcode.com/problems/pascals-triangle
218 426 Convert Binary Search Tree to Sorted Doubly Linked List 59.1% Medium 0.5547017731329936 https://leetcode.com/problems/convert-binary-search-tree-to-sorted-doubly-linked-list
219 655 Print Binary Tree 55.0% Medium 0.5524260762711364 https://leetcode.com/problems/print-binary-tree
220 70 Climbing Stairs 47.8% Easy 0.5484963397685039 https://leetcode.com/problems/climbing-stairs
221 1156 Swap For Longest Repeated Character Substring 49.0% Medium 0.538996500732687 https://leetcode.com/problems/swap-for-longest-repeated-character-substring
222 286 Walls and Gates 54.5% Medium 0.5372803513497615 https://leetcode.com/problems/walls-and-gates
223 518 Coin Change 2 50.2% Medium 0.535971655257865 https://leetcode.com/problems/coin-change-2
224 493 Reverse Pairs 25.2% Hard 0.5334746755483791 https://leetcode.com/problems/reverse-pairs
225 543 Diameter of Binary Tree 48.4% Easy 0.5327148984531092 https://leetcode.com/problems/diameter-of-binary-tree
226 83 Remove Duplicates from Sorted List 45.4% Easy 0.5322016386647934 https://leetcode.com/problems/remove-duplicates-from-sorted-list
227 45 Jump Game II 30.6% Hard 0.5265290156944407 https://leetcode.com/problems/jump-game-ii
228 199 Binary Tree Right Side View 54.1% Medium 0.5244663152343737 https://leetcode.com/problems/binary-tree-right-side-view
229 304 Range Sum Query 2D - Immutable 38.6% Medium 0.5226642021421153 https://leetcode.com/problems/range-sum-query-2d-immutable
230 267 Palindrome Permutation II 36.4% Medium 0.5195071758508175 https://leetcode.com/problems/palindrome-permutation-ii
231 167 Two Sum II - Input array is sorted 54.1% Easy 0.5117640208319821 https://leetcode.com/problems/two-sum-ii-input-array-is-sorted
232 767 Reorganize String 48.7% Medium 0.5043791872596706 https://leetcode.com/problems/reorganize-string
233 432 All O`one Data Structure 32.4% Hard 0.49573913073261056 https://leetcode.com/problems/all-oone-data-structure
234 516 Longest Palindromic Subsequence 53.2% Medium 0.4919958213546186 https://leetcode.com/problems/longest-palindromic-subsequence
235 270 Closest Binary Search Tree Value 48.5% Easy 0.48351300163526767 https://leetcode.com/problems/closest-binary-search-tree-value
236 101 Symmetric Tree 46.8% Easy 0.4835048270478799 https://leetcode.com/problems/symmetric-tree
237 917 Reverse Only Letters 58.0% Easy 0.4628926502431949 https://leetcode.com/problems/reverse-only-letters
238 556 Next Greater Element III 31.7% Medium 0.4617360135694671 https://leetcode.com/problems/next-greater-element-iii
239 1044 Longest Duplicate Substring 31.9% Hard 0.45665121561528643 https://leetcode.com/problems/longest-duplicate-substring
240 122 Best Time to Buy and Sell Stock II 57.0% Easy 0.4497220566283928 https://leetcode.com/problems/best-time-to-buy-and-sell-stock-ii
241 333 Largest BST Subtree 35.8% Medium 0.44572532239455054 https://leetcode.com/problems/largest-bst-subtree
242 108 Convert Sorted Array to Binary Search Tree 57.9% Easy 0.4427274468005625 https://leetcode.com/problems/convert-sorted-array-to-binary-search-tree
243 935 Knight Dialer 45.2% Medium 0.44264411134991843 https://leetcode.com/problems/knight-dialer
244 214 Shortest Palindrome 29.8% Hard 0.4424536774775049 https://leetcode.com/problems/shortest-palindrome
245 55 Jump Game 34.6% Medium 0.44156297053083593 https://leetcode.com/problems/jump-game
246 314 Binary Tree Vertical Order Traversal 45.3% Medium 0.4380937008921841 https://leetcode.com/problems/binary-tree-vertical-order-traversal
247 280 Wiggle Sort 63.8% Medium 0.4358425582560355 https://leetcode.com/problems/wiggle-sort
248 692 Top K Frequent Words 51.8% Medium 0.43507396043031815 https://leetcode.com/problems/top-k-frequent-words
249 698 Partition to K Equal Sum Subsets 45.0% Medium 0.42725858927476734 https://leetcode.com/problems/partition-to-k-equal-sum-subsets
250 266 Palindrome Permutation 61.9% Easy 0.41882207294422785 https://leetcode.com/problems/palindrome-permutation
251 162 Find Peak Element 43.3% Medium 0.41607906913719583 https://leetcode.com/problems/find-peak-element
252 30 Substring with Concatenation of All Words 25.4% Hard 0.41194709630297865 https://leetcode.com/problems/substring-with-concatenation-of-all-words
253 50 Pow(x n) 30.3% Medium 0.4096992146874839 https://leetcode.com/problems/powx-n
254 448 Find All Numbers Disappeared in an Array 55.9% Easy 0.4038568366529517 https://leetcode.com/problems/find-all-numbers-disappeared-in-an-array
255 112 Path Sum 41.2% Easy 0.4021229967221487 https://leetcode.com/problems/path-sum
256 316 Remove Duplicate Letters 35.8% Hard 0.40185220095239377 https://leetcode.com/problems/remove-duplicate-letters
257 413 Arithmetic Slices 57.9% Medium 0.3794137261371684 https://leetcode.com/problems/arithmetic-slices
258 438 Find All Anagrams in a String 43.3% Medium 0.3777487527652922 https://leetcode.com/problems/find-all-anagrams-in-a-string
259 729 My Calendar I 51.8% Medium 0.3746934494414107 https://leetcode.com/problems/my-calendar-i
260 528 Random Pick with Weight 43.9% Medium 0.37294088733187064 https://leetcode.com/problems/random-pick-with-weight
261 498 Diagonal Traverse 48.2% Medium 0.36965808183913323 https://leetcode.com/problems/diagonal-traverse
262 172 Factorial Trailing Zeroes 37.8% Easy 0.3691548840515713 https://leetcode.com/problems/factorial-trailing-zeroes
263 405 Convert a Number to Hexadecimal 43.9% Easy 0.36886796401660715 https://leetcode.com/problems/convert-a-number-to-hexadecimal
264 958 Check Completeness of a Binary Tree 52.1% Medium 0.368486104867077 https://leetcode.com/problems/check-completeness-of-a-binary-tree
265 159 Longest Substring with At Most Two Distinct Characters 49.4% Medium 0.36517862980007215 https://leetcode.com/problems/longest-substring-with-at-most-two-distinct-characters
266 993 Cousins in Binary Tree 52.0% Easy 0.36406958263507494 https://leetcode.com/problems/cousins-in-binary-tree
267 63 Unique Paths II 34.6% Medium 0.35682807157091273 https://leetcode.com/problems/unique-paths-ii
268 332 Reconstruct Itinerary 36.7% Medium 0.3499348287861282 https://leetcode.com/problems/reconstruct-itinerary
269 1185 Day of the Week 64.0% Easy 0.34898886906784754 https://leetcode.com/problems/day-of-the-week
270 113 Path Sum II 46.7% Medium 0.3474387140036706 https://leetcode.com/problems/path-sum-ii
271 166 Fraction to Recurring Decimal 21.6% Medium 0.3451585018771733 https://leetcode.com/problems/fraction-to-recurring-decimal
272 397 Integer Replacement 32.9% Medium 0.342522988151367 https://leetcode.com/problems/integer-replacement
273 805 Split Array With Same Average 26.4% Hard 0.3416302106614813 https://leetcode.com/problems/split-array-with-same-average
274 14 Longest Common Prefix 35.4% Easy 0.33820492794739787 https://leetcode.com/problems/longest-common-prefix
275 1236 Web Crawler 64.3% Medium 0.33647223662121295 https://leetcode.com/problems/web-crawler
276 226 Invert Binary Tree 65.0% Easy 0.33580132079597935 https://leetcode.com/problems/invert-binary-tree
277 431 Encode N-ary Tree to Binary Tree 70.8% Hard 0.3308542443169896 https://leetcode.com/problems/encode-n-ary-tree-to-binary-tree
278 611 Valid Triangle Number 48.4% Medium 0.33024168687057687 https://leetcode.com/problems/valid-triangle-number
279 727 Minimum Window Subsequence 41.8% Hard 0.3290234126082223 https://leetcode.com/problems/minimum-window-subsequence
280 1062 Longest Repeating Substring 57.2% Medium 0.32609152056665214 https://leetcode.com/problems/longest-repeating-substring
281 430 Flatten a Multilevel Doubly Linked List 55.1% Medium 0.32335829449138764 https://leetcode.com/problems/flatten-a-multilevel-doubly-linked-list
282 136 Single Number 65.5% Easy 0.32212410595951135 https://leetcode.com/problems/single-number
283 567 Permutation in String 44.4% Medium 0.31954842197771616 https://leetcode.com/problems/permutation-in-string
284 994 Rotting Oranges 49.2% Medium 0.31869742552695396 https://leetcode.com/problems/rotting-oranges
285 65 Valid Number 15.3% Hard 0.3147685466373522 https://leetcode.com/problems/valid-number
286 1197 Minimum Knight Moves 36.1% Medium 0.3142660340639637 https://leetcode.com/problems/minimum-knight-moves
287 106 Construct Binary Tree from Inorder and Postorder Traversal 47.2% Medium 0.31197312481093953 https://leetcode.com/problems/construct-binary-tree-from-inorder-and-postorder-traversal
288 109 Convert Sorted List to Binary Search Tree 47.7% Medium 0.3101549283038395 https://leetcode.com/problems/convert-sorted-list-to-binary-search-tree
289 383 Ransom Note 53.1% Easy 0.3074846997479606 https://leetcode.com/problems/ransom-note
290 221 Maximal Square 37.7% Medium 0.3057737602882765 https://leetcode.com/problems/maximal-square
291 147 Insertion Sort List 41.1% Medium 0.30480732197724425 https://leetcode.com/problems/insertion-sort-list
292 909 Snakes and Ladders 38.4% Medium 0.30024869505163937 https://leetcode.com/problems/snakes-and-ladders
293 724 Find Pivot Index 44.0% Easy 0.29912265485367395 https://leetcode.com/problems/find-pivot-index
294 40 Combination Sum II 48.2% Medium 0.2974989835662538 https://leetcode.com/problems/combination-sum-ii
295 828 Count Unique Characters of All Substrings of a Given String 45.2% Hard 0.2972515234679316 https://leetcode.com/problems/count-unique-characters-of-all-substrings-of-a-given-string
296 95 Unique Binary Search Trees II 40.6% Medium 0.2958298345782864 https://leetcode.com/problems/unique-binary-search-trees-ii
297 1375 Bulb Switcher III 62.6% Medium 0.29173887314739533 https://leetcode.com/problems/bulb-switcher-iii
298 347 Top K Frequent Elements 61.2% Medium 0.28857373546226267 https://leetcode.com/problems/top-k-frequent-elements
299 354 Russian Doll Envelopes 35.6% Hard 0.2883782089226364 https://leetcode.com/problems/russian-doll-envelopes
300 97 Interleaving String 31.5% Hard 0.28587071214283233 https://leetcode.com/problems/interleaving-string
301 1136 Parallel Courses 61.1% Hard 0.2858421455297737 https://leetcode.com/problems/parallel-courses
302 708 Insert into a Sorted Circular Linked List 31.6% Medium 0.28504006298894224 https://leetcode.com/problems/insert-into-a-sorted-circular-linked-list
303 681 Next Closest Time 45.0% Medium 0.2802157173642045 https://leetcode.com/problems/next-closest-time
304 129 Sum Root to Leaf Numbers 49.1% Medium 0.27802016154004405 https://leetcode.com/problems/sum-root-to-leaf-numbers
305 969 Pancake Sorting 67.5% Medium 0.27343004974457946 https://leetcode.com/problems/pancake-sorting
306 540 Single Element in a Sorted Array 57.9% Medium 0.270315853943239 https://leetcode.com/problems/single-element-in-a-sorted-array
307 202 Happy Number 50.4% Easy 0.268522802513303 https://leetcode.com/problems/happy-number
308 349 Intersection of Two Arrays 62.5% Easy 0.26807134960778223 https://leetcode.com/problems/intersection-of-two-arrays
309 198 House Robber 42.0% Easy 0.2661579642572608 https://leetcode.com/problems/house-robber
310 694 Number of Distinct Islands 56.0% Medium 0.26236426446749106 https://leetcode.com/problems/number-of-distinct-islands
311 18 4Sum 33.7% Medium 0.26175539010512316 https://leetcode.com/problems/4sum
312 683 K Empty Slots 35.6% Hard 0.25708853309999324 https://leetcode.com/problems/k-empty-slots
313 315 Count of Smaller Numbers After Self 41.5% Hard 0.2567607594720918 https://leetcode.com/problems/count-of-smaller-numbers-after-self
314 216 Combination Sum III 56.6% Medium 0.24698514158015275 https://leetcode.com/problems/combination-sum-iii
315 6 ZigZag Conversion 36.3% Medium 0.2458374437427011 https://leetcode.com/problems/zigzag-conversion
316 329 Longest Increasing Path in a Matrix 43.4% Hard 0.24152335025129923 https://leetcode.com/problems/longest-increasing-path-in-a-matrix
317 308 Range Sum Query 2D - Mutable 35.6% Hard 0.24116205681688807 https://leetcode.com/problems/range-sum-query-2d-mutable
318 120 Triangle 44.2% Medium 0.23887525258068545 https://leetcode.com/problems/triangle
319 57 Insert Interval 33.5% Hard 0.23697938397356041 https://leetcode.com/problems/insert-interval
320 416 Partition Equal Subset Sum 43.7% Medium 0.23420537108328685 https://leetcode.com/problems/partition-equal-subset-sum
321 257 Binary Tree Paths 51.5% Easy 0.23334105110860667 https://leetcode.com/problems/binary-tree-paths
322 1188 Design Bounded Blocking Queue 70.5% Medium 0.23300728083654992 https://leetcode.com/problems/design-bounded-blocking-queue
323 243 Shortest Word Distance 61.0% Easy 0.23122733458279973 https://leetcode.com/problems/shortest-word-distance
324 509 Fibonacci Number 67.2% Easy 0.22873204718012582 https://leetcode.com/problems/fibonacci-number
325 768 Max Chunks To Make Sorted II 48.7% Hard 0.22767870647960103 https://leetcode.com/problems/max-chunks-to-make-sorted-ii
326 104 Maximum Depth of Binary Tree 66.0% Easy 0.2247057029374007 https://leetcode.com/problems/maximum-depth-of-binary-tree
327 701 Insert into a Binary Search Tree 77.7% Medium 0.22337817376865485 https://leetcode.com/problems/insert-into-a-binary-search-tree
328 341 Flatten Nested List Iterator 52.9% Medium 0.2209211036876481 https://leetcode.com/problems/flatten-nested-list-iterator
329 231 Power of Two 43.7% Easy 0.2188289731364177 https://leetcode.com/problems/power-of-two
330 317 Shortest Distance from All Buildings 41.4% Hard 0.21654542918153205 https://leetcode.com/problems/shortest-distance-from-all-buildings
331 523 Continuous Subarray Sum 24.6% Medium 0.21568639520612767 https://leetcode.com/problems/continuous-subarray-sum
332 158 Read N Characters Given Read4 II - Call multiple times 33.8% Hard 0.21421194491522716 https://leetcode.com/problems/read-n-characters-given-read4-ii-call-multiple-times
333 205 Isomorphic Strings 39.8% Easy 0.21117085755971557 https://leetcode.com/problems/isomorphic-strings
334 107 Binary Tree Level Order Traversal II 53.5% Easy 0.2086357266305724 https://leetcode.com/problems/binary-tree-level-order-traversal-ii
335 717 1-bit and 2-bit Characters 48.8% Easy 0.20727941516730314 https://leetcode.com/problems/1-bit-and-2-bit-characters
336 290 Word Pattern 37.0% Easy 0.20496634325524304 https://leetcode.com/problems/word-pattern
337 463 Island Perimeter 65.7% Easy 0.20102047685235075 https://leetcode.com/problems/island-perimeter
338 568 Maximum Vacation Days 40.8% Hard 0.19966567025192705 https://leetcode.com/problems/maximum-vacation-days
339 209 Minimum Size Subarray Sum 38.2% Medium 0.1916428563693859 https://leetcode.com/problems/minimum-size-subarray-sum
340 210 Course Schedule II 40.7% Medium 0.19114245113569317 https://leetcode.com/problems/course-schedule-ii
341 219 Contains Duplicate II 37.7% Easy 0.18696862869341266 https://leetcode.com/problems/contains-duplicate-ii
342 299 Bulls and Cows 42.4% Easy 0.1826623303532244 https://leetcode.com/problems/bulls-and-cows
343 187 Repeated DNA Sequences 38.9% Medium 0.18218832116655082 https://leetcode.com/problems/repeated-dna-sequences
344 284 Peeking Iterator 45.7% Medium 0.1802129634981955 https://leetcode.com/problems/peeking-iterator
345 547 Friend Circles 58.6% Medium 0.17970355268064825 https://leetcode.com/problems/friend-circles
346 437 Path Sum III 47.2% Medium 0.17834783920071107 https://leetcode.com/problems/path-sum-iii
347 773 Sliding Puzzle 59.3% Hard 0.17627924233799203 https://leetcode.com/problems/sliding-puzzle
348 987 Vertical Order Traversal of a Binary Tree 36.6% Medium 0.17117447745078015 https://leetcode.com/problems/vertical-order-traversal-of-a-binary-tree
349 843 Guess the Word 46.1% Hard 0.17062551703076334 https://leetcode.com/problems/guess-the-word
350 367 Valid Perfect Square 41.7% Easy 0.16978101623607908 https://leetcode.com/problems/valid-perfect-square
351 609 Find Duplicate File in System 59.5% Medium 0.16971838464062922 https://leetcode.com/problems/find-duplicate-file-in-system
352 784 Letter Case Permutation 64.6% Medium 0.16909907515089384 https://leetcode.com/problems/letter-case-permutation
353 325 Maximum Size Subarray Sum Equals k 46.8% Medium 0.16882086957505205 https://leetcode.com/problems/maximum-size-subarray-sum-equals-k
354 680 Valid Palindrome II 36.6% Easy 0.1679540228531573 https://leetcode.com/problems/valid-palindrome-ii
355 489 Robot Room Cleaner 69.7% Hard 0.16758021585734428 https://leetcode.com/problems/robot-room-cleaner
356 399 Evaluate Division 51.6% Medium 0.16222534433150315 https://leetcode.com/problems/evaluate-division
357 653 Two Sum IV - Input is a BST 55.5% Easy 0.16169480776777312 https://leetcode.com/problems/two-sum-iv-input-is-a-bst
358 662 Maximum Width of Binary Tree 41.0% Medium 0.16006134199074026 https://leetcode.com/problems/maximum-width-of-binary-tree
359 222 Count Complete Tree Nodes 46.8% Medium 0.15947973572471308 https://leetcode.com/problems/count-complete-tree-nodes
360 721 Accounts Merge 48.8% Medium 0.15836350116973763 https://leetcode.com/problems/accounts-merge
361 131 Palindrome Partitioning 47.5% Medium 0.15829229898055353 https://leetcode.com/problems/palindrome-partitioning
362 271 Encode and Decode Strings 31.5% Medium 0.15521621002929656 https://leetcode.com/problems/encode-and-decode-strings
363 373 Find K Pairs with Smallest Sums 36.7% Medium 0.15386549516826 https://leetcode.com/problems/find-k-pairs-with-smallest-sums
364 979 Distribute Coins in Binary Tree 68.9% Medium 0.15348688956060175 https://leetcode.com/problems/distribute-coins-in-binary-tree
365 632 Smallest Range Covering Elements from K Lists 52.4% Hard 0.15283920422944758 https://leetcode.com/problems/smallest-range-covering-elements-from-k-lists
366 833 Find And Replace in String 50.4% Medium 0.1506602748874898 https://leetcode.com/problems/find-and-replace-in-string
367 365 Water and Jug Problem 30.6% Medium 0.14565275315686743 https://leetcode.com/problems/water-and-jug-problem
368 1381 Design a Stack With Increment Operation 74.7% Medium 0.1453140980267603 https://leetcode.com/problems/design-a-stack-with-increment-operation
369 939 Minimum Area Rectangle 51.8% Medium 0.14413390158378703 https://leetcode.com/problems/minimum-area-rectangle
370 16 3Sum Closest 46.0% Medium 0.14234512850929823 https://leetcode.com/problems/3sum-closest
371 769 Max Chunks To Make Sorted 54.8% Medium 0.14019808398271194 https://leetcode.com/problems/max-chunks-to-make-sorted
372 176 Second Highest Salary 31.6% Easy 0.1400039071301401 https://leetcode.com/problems/second-highest-salary
373 279 Perfect Squares 47.4% Medium 0.13815033848081718 https://leetcode.com/problems/perfect-squares
374 282 Expression Add Operators 35.5% Hard 0.13310419432681886 https://leetcode.com/problems/expression-add-operators
375 1143 Longest Common Subsequence 58.4% Medium 0.13278227696210623 https://leetcode.com/problems/longest-common-subsequence
376 305 Number of Islands II 40.1% Hard 0.1304306149462744 https://leetcode.com/problems/number-of-islands-ii
377 217 Contains Duplicate 56.0% Easy 0.12838116664820678 https://leetcode.com/problems/contains-duplicate
378 707 Design Linked List 24.5% Medium 0.12796988096337653 https://leetcode.com/problems/design-linked-list
379 612 Shortest Distance in a Plane 59.5% Medium 0.1271551754852466 https://leetcode.com/problems/shortest-distance-in-a-plane
380 621 Task Scheduler 50.1% Medium 0.12387972474581618 https://leetcode.com/problems/task-scheduler
381 704 Binary Search 52.1% Easy 0.12265353454721256 https://leetcode.com/problems/binary-search
382 844 Backspace String Compare 46.4% Easy 0.12201137176590456 https://leetcode.com/problems/backspace-string-compare
383 1114 Print in Order 65.7% Easy 0.12136085700426744 https://leetcode.com/problems/print-in-order
384 323 Number of Connected Components in an Undirected Graph 56.0% Medium 0.12008412526365206 https://leetcode.com/problems/number-of-connected-components-in-an-undirected-graph
385 525 Contiguous Array 42.8% Medium 0.11750591219610916 https://leetcode.com/problems/contiguous-array
386 739 Daily Temperatures 63.3% Medium 0.11646575243222568 https://leetcode.com/problems/daily-temperatures
387 515 Find Largest Value in Each Tree Row 61.1% Medium 0.11375888535665801 https://leetcode.com/problems/find-largest-value-in-each-tree-row
388 671 Second Minimum Node In a Binary Tree 42.7% Easy 0.11343592966337171 https://leetcode.com/problems/second-minimum-node-in-a-binary-tree
389 532 K-diff Pairs in an Array 31.6% Easy 0.111723209445655 https://leetcode.com/problems/k-diff-pairs-in-an-array
390 973 K Closest Points to Origin 63.8% Medium 0.11087510283099485 https://leetcode.com/problems/k-closest-points-to-origin
391 1008 Construct Binary Search Tree from Preorder Traversal 78.4% Medium 0.11004936619718413 https://leetcode.com/problems/construct-binary-search-tree-from-preorder-traversal
392 213 House Robber II 36.5% Medium 0.10850742141601913 https://leetcode.com/problems/house-robber-ii
393 852 Peak Index in a Mountain Array 71.6% Easy 0.10821358464023274 https://leetcode.com/problems/peak-index-in-a-mountain-array
394 311 Sparse Matrix Multiplication 61.9% Medium 0.10648348040245009 https://leetcode.com/problems/sparse-matrix-multiplication
395 1386 Cinema Seat Allocation 34.8% Medium 0.10648348040245009 https://leetcode.com/problems/cinema-seat-allocation
396 406 Queue Reconstruction by Height 66.9% Medium 0.10607646342422336 https://leetcode.com/problems/queue-reconstruction-by-height
397 34 Find First and Last Position of Element in Sorted Array 36.2% Medium 0.10112681359490523 https://leetcode.com/problems/find-first-and-last-position-of-element-in-sorted-array
398 658 Find K Closest Elements 40.9% Medium 0.0995648587647672 https://leetcode.com/problems/find-k-closest-elements
399 90 Subsets II 47.1% Medium 0.09830555874512009 https://leetcode.com/problems/subsets-ii
400 1038 Binary Search Tree to Greater Sum Tree 80.8% Medium 0.09811785595852335 https://leetcode.com/problems/binary-search-tree-to-greater-sum-tree
401 785 Is Graph Bipartite? 47.5% Medium 0.09684982598991766 https://leetcode.com/problems/is-graph-bipartite
402 220 Contains Duplicate III 20.9% Medium 0.09599691440839975 https://leetcode.com/problems/contains-duplicate-iii
403 895 Maximum Frequency Stack 60.6% Hard 0.09490784626439754 https://leetcode.com/problems/maximum-frequency-stack
404 381 Insert Delete GetRandom O(1) - Duplicates allowed 34.1% Hard 0.09106388892287375 https://leetcode.com/problems/insert-delete-getrandom-o1-duplicates-allowed
405 1324 Print Words Vertically 57.9% Medium 0.09055957704572704 https://leetcode.com/problems/print-words-vertically
406 414 Third Maximum Number 30.5% Easy 0.08956753807644377 https://leetcode.com/problems/third-maximum-number
407 1116 Print Zero Even Odd 56.0% Medium 0.08934510033584994 https://leetcode.com/problems/print-zero-even-odd
408 907 Sum of Subarray Minimums 32.3% Medium 0.08934510033584994 https://leetcode.com/problems/sum-of-subarray-minimums
409 819 Most Common Word 44.8% Easy 0.0888376652987074 https://leetcode.com/problems/most-common-word
410 256 Paint House 52.1% Easy 0.08650924290928251 https://leetcode.com/problems/paint-house
411 27 Remove Element 48.2% Easy 0.08523043261863501 https://leetcode.com/problems/remove-element
412 703 Kth Largest Element in a Stream 49.7% Easy 0.08385735299772534 https://leetcode.com/problems/kth-largest-element-in-a-stream
413 905 Sort Array By Parity 74.1% Easy 0.08328510247304294 https://leetcode.com/problems/sort-array-by-parity
414 278 First Bad Version 35.7% Easy 0.08295984140240989 https://leetcode.com/problems/first-bad-version
415 359 Logger Rate Limiter 70.8% Easy 0.08167803101426718 https://leetcode.com/problems/logger-rate-limiter
416 643 Maximum Average Subarray I 41.5% Easy 0.08105244450653293 https://leetcode.com/problems/maximum-average-subarray-i
417 96 Unique Binary Search Trees 52.9% Medium 0.08025695513016742 https://leetcode.com/problems/unique-binary-search-trees
418 60 Permutation Sequence 38.4% Hard 0.07948571541724253 https://leetcode.com/problems/permutation-sequence
419 1104 Path In Zigzag Labelled Binary Tree 72.0% Medium 0.07786032177227234 https://leetcode.com/problems/path-in-zigzag-labelled-binary-tree
420 435 Non-overlapping Intervals 42.9% Medium 0.07565042495900788 https://leetcode.com/problems/non-overlapping-intervals
421 480 Sliding Window Median 37.2% Hard 0.0743529801177063 https://leetcode.com/problems/sliding-window-median
422 1079 Letter Tile Possibilities 75.4% Medium 0.07350246199292652 https://leetcode.com/problems/letter-tile-possibilities
423 503 Next Greater Element II 56.5% Medium 0.07339377143296942 https://leetcode.com/problems/next-greater-element-ii
424 144 Binary Tree Preorder Traversal 55.7% Medium 0.0722495403534662 https://leetcode.com/problems/binary-tree-preorder-traversal
425 676 Implement Magic Dictionary 54.5% Medium 0.06995858860691037 https://leetcode.com/problems/implement-magic-dictionary
426 1027 Longest Arithmetic Sequence 53.4% Medium 0.06693948267510934 https://leetcode.com/problems/longest-arithmetic-sequence
427 1145 Binary Tree Coloring Game 51.2% Medium 0.06592172080482424 https://leetcode.com/problems/binary-tree-coloring-game
428 1304 Find N Unique Integers Sum up to Zero 76.3% Easy 0.06210765548004028 https://leetcode.com/problems/find-n-unique-integers-sum-up-to-zero
429 350 Intersection of Two Arrays II 51.4% Easy 0.06202949919751832 https://leetcode.com/problems/intersection-of-two-arrays-ii
430 472 Concatenated Words 43.7% Hard 0.06120196522807572 https://leetcode.com/problems/concatenated-words
431 796 Rotate String 49.6% Easy 0.059778751425839334 https://leetcode.com/problems/rotate-string
432 47 Permutations II 46.4% Medium 0.05897935516253239 https://leetcode.com/problems/permutations-ii
433 630 Course Schedule III 33.5% Hard 0.058581901624802396 https://leetcode.com/problems/course-schedule-iii
434 111 Minimum Depth of Binary Tree 37.4% Easy 0.05806209779650968 https://leetcode.com/problems/minimum-depth-of-binary-tree
435 100 Same Tree 53.4% Easy 0.05782550765396603 https://leetcode.com/problems/same-tree
436 832 Flipping an Image 76.2% Easy 0.057363394879920204 https://leetcode.com/problems/flipping-an-image
437 950 Reveal Cards In Increasing Order 74.6% Medium 0.056592185311170023 https://leetcode.com/problems/reveal-cards-in-increasing-order
438 541 Reverse String II 48.4% Easy 0.05615948403872344 https://leetcode.com/problems/reverse-string-ii
439 735 Asteroid Collision 41.0% Medium 0.05479154882968245 https://leetcode.com/problems/asteroid-collision
440 1229 Meeting Scheduler 52.7% Medium 0.053560323833736816 https://leetcode.com/problems/meeting-scheduler
441 1092 Shortest Common Supersequence 51.6% Hard 0.053488684950986194 https://leetcode.com/problems/shortest-common-supersequence
442 303 Range Sum Query - Immutable 44.7% Easy 0.05194286677525062 https://leetcode.com/problems/range-sum-query-immutable
443 981 Time Based Key-Value Store 53.1% Medium 0.049406315387071284 https://leetcode.com/problems/time-based-key-value-store
444 67 Add Binary 45.2% Easy 0.049093096377302976 https://leetcode.com/problems/add-binary
445 459 Repeated Substring Pattern 42.2% Easy 0.04752742385552696 https://leetcode.com/problems/repeated-substring-pattern
446 845 Longest Mountain in Array 37.2% Medium 0.047458490406358134 https://leetcode.com/problems/longest-mountain-in-array
447 876 Middle of the Linked List 68.4% Easy 0.046728740327781716 https://leetcode.com/problems/middle-of-the-linked-list
448 977 Squares of a Sorted Array 72.1% Easy 0.046652914831048324 https://leetcode.com/problems/squares-of-a-sorted-array
449 670 Maximum Swap 43.6% Medium 0.04630456804168632 https://leetcode.com/problems/maximum-swap
450 494 Target Sum 46.3% Medium 0.04353244473664264 https://leetcode.com/problems/target-sum
451 938 Range Sum of BST 81.3% Easy 0.043035900859132004 https://leetcode.com/problems/range-sum-of-bst
452 1004 Max Consecutive Ones III 59.1% Medium 0.041252411938220004 https://leetcode.com/problems/max-consecutive-ones-iii
453 211 Add and Search Word - Data structure design 38.1% Medium 0.04111576039097048 https://leetcode.com/problems/add-and-search-word-data-structure-design
454 35 Search Insert Position 42.6% Easy 0.041064163611348584 https://leetcode.com/problems/search-insert-position
455 788 Rotated Digits 57.1% Easy 0.03980625040041967 https://leetcode.com/problems/rotated-digits
456 872 Leaf-Similar Trees 64.5% Easy 0.03899974309382511 https://leetcode.com/problems/leaf-similar-trees
457 884 Uncommon Words from Two Sentences 63.3% Easy 0.036301626676214796 https://leetcode.com/problems/uncommon-words-from-two-sentences
458 934 Shortest Bridge 48.2% Medium 0.03607244121670154 https://leetcode.com/problems/shortest-bridge
459 650 2 Keys Keyboard 49.2% Medium 0.035910501305770864 https://leetcode.com/problems/2-keys-keyboard
460 929 Unique Email Addresses 67.4% Easy 0.033748984736641036 https://leetcode.com/problems/unique-email-addresses
461 485 Max Consecutive Ones 54.6% Easy 0.03276403666757628 https://leetcode.com/problems/max-consecutive-ones
462 258 Add Digits 57.6% Easy 0.03259608198749547 https://leetcode.com/problems/add-digits
463 203 Remove Linked List Elements 38.6% Easy 0.032376928724459735 https://leetcode.com/problems/remove-linked-list-elements
464 1091 Shortest Path in Binary Matrix 38.2% Medium 0.03164821095078173 https://leetcode.com/problems/shortest-path-in-binary-matrix
465 867 Transpose Matrix 62.8% Easy 0.031179454774354007 https://leetcode.com/problems/transpose-matrix
466 953 Verifying an Alien Dictionary 54.1% Easy 0.03117337947619734 https://leetcode.com/problems/verifying-an-alien-dictionary
467 575 Distribute Candies 61.4% Easy 0.030890487019338404 https://leetcode.com/problems/distribute-candies
468 1192 Critical Connections in a Network 48.6% Hard 0.030183377823098576 https://leetcode.com/problems/critical-connections-in-a-network
469 452 Minimum Number of Arrows to Burst Balloons 49.6% Medium 0.029478921626711667 https://leetcode.com/problems/minimum-number-of-arrows-to-burst-balloons
470 496 Next Greater Element I 63.8% Easy 0.029462032730316202 https://leetcode.com/problems/next-greater-element-i
471 338 Counting Bits 69.5% Medium 0.024325523767440974 https://leetcode.com/problems/counting-bits
472 1344 Angle Between Hands of a Clock 61.4% Medium 0.023682900893022413 https://leetcode.com/problems/angle-between-hands-of-a-clock
473 1019 Next Greater Node In Linked List 57.4% Medium 0.02159911180346178 https://leetcode.com/problems/next-greater-node-in-linked-list
474 1122 Relative Sort Array 67.7% Easy 0.019685675071030327 https://leetcode.com/problems/relative-sort-array
475 674 Longest Continuous Increasing Subsequence 45.9% Easy 0.01900294712561538 https://leetcode.com/problems/longest-continuous-increasing-subsequence
476 1155 Number of Dice Rolls With Target Sum 49.0% Medium 0.018904154639152678 https://leetcode.com/problems/number-of-dice-rolls-with-target-sum
477 787 Cheapest Flights Within K Stops 39.3% Medium 0.018824085245635554 https://leetcode.com/problems/cheapest-flights-within-k-stops
478 743 Network Delay Time 45.0% Medium 0.012743084194281933 https://leetcode.com/problems/network-delay-time
479 1249 Minimum Remove to Make Valid Parentheses 62.5% Medium 0.009195467093100304 https://leetcode.com/problems/minimum-remove-to-make-valid-parentheses
480 1470 Shuffle the Array 88.9% Easy 0.004527967890154029 https://leetcode.com/problems/shuffle-the-array
481 513 Find Bottom Left Tree Value 61.5% Medium 0 https://leetcode.com/problems/find-bottom-left-tree-value
482 631 Design Excel Sum Formula 31.6% Hard 0 https://leetcode.com/problems/design-excel-sum-formula
483 654 Maximum Binary Tree 79.9% Medium 0 https://leetcode.com/problems/maximum-binary-tree
484 672 Bulb Switcher II 50.9% Medium 0 https://leetcode.com/problems/bulb-switcher-ii
485 871 Minimum Number of Refueling Stops 31.4% Hard 0 https://leetcode.com/problems/minimum-number-of-refueling-stops
486 886 Possible Bipartition 44.2% Medium 0 https://leetcode.com/problems/possible-bipartition
487 901 Online Stock Span 60.2% Medium 0 https://leetcode.com/problems/online-stock-span
488 972 Equal Rational Numbers 41.6% Hard 0 https://leetcode.com/problems/equal-rational-numbers
489 1006 Clumsy Factorial 53.3% Medium 0 https://leetcode.com/problems/clumsy-factorial
490 1013 Partition Array Into Three Parts With Equal Sum 51.8% Easy 0 https://leetcode.com/problems/partition-array-into-three-parts-with-equal-sum
491 1053 Previous Permutation With One Swap 48.5% Medium 0 https://leetcode.com/problems/previous-permutation-with-one-swap
492 1198 Find Smallest Common Element in All Rows 74.9% Medium 0 https://leetcode.com/problems/find-smallest-common-element-in-all-rows
493 1093 Statistics from a Large Sample 48.2% Medium 0 https://leetcode.com/problems/statistics-from-a-large-sample
494 1273 Delete Tree Nodes 63.5% Medium 0 https://leetcode.com/problems/delete-tree-nodes
495 1131 Maximum of Absolute Value Expression 53.0% Medium 0 https://leetcode.com/problems/maximum-of-absolute-value-expression
496 1206 Design Skiplist 57.3% Hard 0 https://leetcode.com/problems/design-skiplist
497 1285 Find the Start and End Number of Continuous Ranges 83.8% Medium 0 https://leetcode.com/problems/find-the-start-and-end-number-of-continuous-ranges
498 1306 Jump Game III 60.4% Medium 0 https://leetcode.com/problems/jump-game-iii
499 1318 Minimum Flips to Make a OR b Equal to c 62.8% Medium 0 https://leetcode.com/problems/minimum-flips-to-make-a-or-b-equal-to-c
500 1339 Maximum Product of Splitted Binary Tree 37.2% Medium 0 https://leetcode.com/problems/maximum-product-of-splitted-binary-tree
501 1371 Find the Longest Substring Containing Vowels in Even Counts 58.2% Medium 0 https://leetcode.com/problems/find-the-longest-substring-containing-vowels-in-even-counts
502 1369 Get the Second Most Recent Activity 65.1% Hard 0 https://leetcode.com/problems/get-the-second-most-recent-activity
503 1394 Find Lucky Integer in an Array 64.4% Easy 0 https://leetcode.com/problems/find-lucky-integer-in-an-array
504 1415 The k-th Lexicographical String of All Happy Strings of Length n 70.4% Medium 0 https://leetcode.com/problems/the-k-th-lexicographical-string-of-all-happy-strings-of-length-n
505 1417 Reformat The String 55.0% Easy 0 https://leetcode.com/problems/reformat-the-string
506 1448 Count Good Nodes in Binary Tree 70.4% Medium 0 https://leetcode.com/problems/count-good-nodes-in-binary-tree
507 1458 Max Dot Product of Two Subsequences 41.7% Hard 0 https://leetcode.com/problems/max-dot-product-of-two-subsequences
508 1469 Find All The Lonely Nodes 81.4% Easy 0 https://leetcode.com/problems/find-all-the-lonely-nodes
509 1510 Stone Game IV 50.3% Hard 0 https://leetcode.com/problems/stone-game-iv
510 1474 Delete N Nodes After M Nodes of a Linked List 74.2% Easy 0 https://leetcode.com/problems/delete-n-nodes-after-m-nodes-of-a-linked-list
511 1523 Count Odd Numbers in an Interval Range 55.8% Easy 0 https://leetcode.com/problems/count-odd-numbers-in-an-interval-range
512 1518 Water Bottles 63.1% Easy 0 https://leetcode.com/problems/water-bottles
513 1539 Kth Missing Positive Number 52.3% Easy 0 https://leetcode.com/problems/kth-missing-positive-number
514 1528 Shuffle String 86.1% Easy 0 https://leetcode.com/problems/shuffle-string