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1,Two Sum,45.6%,Easy,1.3239393390446, https://leetcode.com/problems/two-sum
284,Peeking Iterator,45.7%,Medium,1.225806299790293, https://leetcode.com/problems/peeking-iterator
146,LRU Cache,33.2%,Medium,1.1817054748912657, https://leetcode.com/problems/lru-cache
1095,Find in Mountain Array,35.8%,Hard,1.0835724356369587, https://leetcode.com/problems/find-in-mountain-array
391,Perfect Rectangle,30.5%,Hard,0.9854393963826518, https://leetcode.com/problems/perfect-rectangle
403,Frog Jump,39.7%,Hard,0.977549850058533, https://leetcode.com/problems/frog-jump
2,Add Two Numbers,33.9%,Medium,0.9760771681710703, https://leetcode.com/problems/add-two-numbers
341,Flatten Nested List Iterator,52.9%,Medium,0.9601739460032599, https://leetcode.com/problems/flatten-nested-list-iterator
53,Maximum Subarray,46.5%,Easy,0.9397769028056373, https://leetcode.com/problems/maximum-subarray
42,Trapping Rain Water,48.9%,Hard,0.8416438635513304, https://leetcode.com/problems/trapping-rain-water
428,Serialize and Deserialize N-ary Tree,59.4%,Hard,0.8184023944755309, https://leetcode.com/problems/serialize-and-deserialize-n-ary-tree
4,Median of Two Sorted Arrays,29.6%,Hard,0.7804874458075195, https://leetcode.com/problems/median-of-two-sorted-arrays
97,Interleaving String,31.5%,Hard,0.6933519806963994, https://leetcode.com/problems/interleaving-string
295,Find Median from Data Stream,44.3%,Hard,0.6374386685560265, https://leetcode.com/problems/find-median-from-data-stream
212,Word Search II,34.9%,Hard,0.5393056293017195, https://leetcode.com/problems/word-search-ii
311,Sparse Matrix Multiplication,61.9%,Medium,0.4503238876572249, https://leetcode.com/problems/sparse-matrix-multiplication
200,Number of Islands,46.8%,Medium,0.44929804774434284, https://leetcode.com/problems/number-of-islands
479,Largest Palindrome Product,29.0%,Hard,0.44183275227903923, https://leetcode.com/problems/largest-palindrome-product
49,Group Anagrams,56.9%,Medium,0.40816116873735864, https://leetcode.com/problems/group-anagrams
688,Knight Probability in Chessboard,48.9%,Medium,0.38977851194046487, https://leetcode.com/problems/knight-probability-in-chessboard
351,Android Unlock Patterns,48.4%,Medium,0.38282263135840455, https://leetcode.com/problems/android-unlock-patterns
981,Time Based Key-Value Store,53.1%,Medium,0.3755723540313778, https://leetcode.com/problems/time-based-key-value-store
227,Basic Calculator II,36.9%,Medium,0.3709825801608562, https://leetcode.com/problems/basic-calculator-ii
206,Reverse Linked List,62.5%,Easy,0.3555322708386157, https://leetcode.com/problems/reverse-linked-list
329,Longest Increasing Path in a Matrix,43.4%,Hard,0.34223732585313005, https://leetcode.com/problems/longest-increasing-path-in-a-matrix
56,Merge Intervals,39.3%,Medium,0.324649020144345, https://leetcode.com/problems/merge-intervals
12,Integer to Roman,55.1%,Medium,0.30898314806430144, https://leetcode.com/problems/integer-to-roman
177,Nth Highest Salary,31.4%,Medium,0.3088994656700207, https://leetcode.com/problems/nth-highest-salary
202,Happy Number,50.4%,Easy,0.3027727255563815, https://leetcode.com/problems/happy-number
724,Find Pivot Index,44.0%,Easy,0.29912265485367395, https://leetcode.com/problems/find-pivot-index
1229,Meeting Scheduler,52.7%,Medium,0.2955601745092634, https://leetcode.com/problems/meeting-scheduler
387,First Unique Character in a String,53.4%,Easy,0.2924677090124108, https://leetcode.com/problems/first-unique-character-in-a-string
996,Number of Squareful Arrays,47.8%,Hard,0.28675913745318005, https://leetcode.com/problems/number-of-squareful-arrays
54,Spiral Matrix,34.1%,Medium,0.28079436421311554, https://leetcode.com/problems/spiral-matrix
15,3Sum,26.8%,Medium,0.2753610195122021, https://leetcode.com/problems/3sum
5,Longest Palindromic Substring,29.5%,Medium,0.2637368700238773, https://leetcode.com/problems/longest-palindromic-substring
348,Design Tic-Tac-Toe,54.3%,Medium,0.2625527836498761, https://leetcode.com/problems/design-tic-tac-toe
21,Merge Two Sorted Lists,53.5%,Easy,0.2612738868325316, https://leetcode.com/problems/merge-two-sorted-lists
609,Find Duplicate File in System,59.5%,Medium,0.25388017696233983, https://leetcode.com/problems/find-duplicate-file-in-system
238,Product of Array Except Self,60.1%,Medium,0.25039509932624693, https://leetcode.com/problems/product-of-array-except-self
139,Word Break,40.1%,Medium,0.24836185186023652, https://leetcode.com/problems/word-break
251,Flatten 2D Vector,45.7%,Medium,0.2425088583672668, https://leetcode.com/problems/flatten-2d-vector
545,Boundary of Binary Tree,38.9%,Medium,0.235382573048932, https://leetcode.com/problems/boundary-of-binary-tree
3,Longest Substring Without Repeating Characters,30.4%,Medium,0.23357430753991837, https://leetcode.com/problems/longest-substring-without-repeating-characters
48,Rotate Image,56.7%,Medium,0.22339894653970727, https://leetcode.com/problems/rotate-image
18,4Sum,33.7%,Medium,0.22096511694444815, https://leetcode.com/problems/4sum
8,String to Integer (atoi),15.4%,Medium,0.2176759858041558, https://leetcode.com/problems/string-to-integer-atoi
393,UTF-8 Validation,37.5%,Medium,0.2166710368085923, https://leetcode.com/problems/utf-8-validation
661,Image Smoother,51.5%,Easy,0.21106039931128698, https://leetcode.com/problems/image-smoother
729,My Calendar I,51.8%,Medium,0.20856657856743668, https://leetcode.com/problems/my-calendar-i
362,Design Hit Counter,63.7%,Medium,0.20812125379246896, https://leetcode.com/problems/design-hit-counter
23,Merge k Sorted Lists,40.2%,Hard,0.20567737841612924, https://leetcode.com/problems/merge-k-sorted-lists
233,Number of Digit One,31.3%,Hard,0.20157261209600713, https://leetcode.com/problems/number-of-digit-one
836,Rectangle Overlap,48.6%,Easy,0.19944370144318244, https://leetcode.com/problems/rectangle-overlap
36,Valid Sudoku,48.7%,Medium,0.1991463806942981, https://leetcode.com/problems/valid-sudoku
706,Design HashMap,61.3%,Easy,0.1960785423771685, https://leetcode.com/problems/design-hashmap
46,Permutations,63.5%,Medium,0.18816690901782251, https://leetcode.com/problems/permutations
658,Find K Closest Elements,40.9%,Medium,0.18663941293482042, https://leetcode.com/problems/find-k-closest-elements
394,Decode String,50.0%,Medium,0.18648126820299707, https://leetcode.com/problems/decode-string
253,Meeting Rooms II,45.7%,Medium,0.18465102561460048, https://leetcode.com/problems/meeting-rooms-ii
911,Online Election,50.4%,Medium,0.1741842396477574, https://leetcode.com/problems/online-election
1278,Palindrome Partitioning III,59.9%,Hard,0.17284281283941086, https://leetcode.com/problems/palindrome-partitioning-iii
223,Rectangle Area,37.8%,Medium,0.172469260350943, https://leetcode.com/problems/rectangle-area
7,Reverse Integer,25.8%,Easy,0.1708373626727859, https://leetcode.com/problems/reverse-integer
31,Next Permutation,32.6%,Medium,0.16698476137397944, https://leetcode.com/problems/next-permutation
642,Design Search Autocomplete System,44.7%,Hard,0.16312782492496253, https://leetcode.com/problems/design-search-autocomplete-system
821,Shortest Distance to a Character,66.9%,Easy,0.16229864091884685, https://leetcode.com/problems/shortest-distance-to-a-character
242,Valid Anagram,56.9%,Easy,0.1620140669319784, https://leetcode.com/problems/valid-anagram
155,Min Stack,44.5%,Easy,0.15817175770099312, https://leetcode.com/problems/min-stack
88,Merge Sorted Array,39.4%,Easy,0.15664551938695154, https://leetcode.com/problems/merge-sorted-array
381,Insert Delete GetRandom O(1) - Duplicates allowed,34.1%,Hard,0.15656906069153992, https://leetcode.com/problems/insert-delete-getrandom-o1-duplicates-allowed
125,Valid Palindrome,36.7%,Easy,0.15573056017039402, https://leetcode.com/problems/valid-palindrome
20,Valid Parentheses,39.0%,Easy,0.15392855906669206, https://leetcode.com/problems/valid-parentheses
14,Longest Common Prefix,35.4%,Easy,0.15097420446868728, https://leetcode.com/problems/longest-common-prefix
17,Letter Combinations of a Phone Number,46.8%,Medium,0.14740025304271914, https://leetcode.com/problems/letter-combinations-of-a-phone-number
380,Insert Delete GetRandom O(1),47.5%,Medium,0.1466146891661091, https://leetcode.com/problems/insert-delete-getrandom-o1
269,Alien Dictionary,33.3%,Hard,0.14578781346149866, https://leetcode.com/problems/alien-dictionary
909,Snakes and Ladders,38.4%,Medium,0.14465605390747982, https://leetcode.com/problems/snakes-and-ladders
546,Remove Boxes,42.7%,Hard,0.14361551169114867, https://leetcode.com/problems/remove-boxes
121,Best Time to Buy and Sell Stock,50.5%,Easy,0.14290237960985536, https://leetcode.com/problems/best-time-to-buy-and-sell-stock
16,3Sum Closest,46.0%,Medium,0.14234512850929823, https://leetcode.com/problems/3sum-closest
75,Sort Colors,47.3%,Medium,0.14097981038702445, https://leetcode.com/problems/sort-colors
127,Word Ladder,29.6%,Medium,0.13969675545163246, https://leetcode.com/problems/word-ladder
141,Linked List Cycle,41.1%,Easy,0.13790757618343236, https://leetcode.com/problems/linked-list-cycle
427,Construct Quad Tree,61.4%,Medium,0.13580154115906176, https://leetcode.com/problems/construct-quad-tree
509,Fibonacci Number,67.2%,Easy,0.1350250115835784, https://leetcode.com/problems/fibonacci-number
297,Serialize and Deserialize Binary Tree,47.5%,Hard,0.13437443205326582, https://leetcode.com/problems/serialize-and-deserialize-binary-tree
236,Lowest Common Ancestor of a Binary Tree,45.7%,Medium,0.13360522333074684, https://leetcode.com/problems/lowest-common-ancestor-of-a-binary-tree
195,Tenth Line,33.0%,Easy,0.1329388000145885, https://leetcode.com/problems/tenth-line
124,Binary Tree Maximum Path Sum,34.3%,Hard,0.12986708079202924, https://leetcode.com/problems/binary-tree-maximum-path-sum
384,Shuffle an Array,52.8%,Medium,0.12953764257899986, https://leetcode.com/problems/shuffle-an-array
733,Flood Fill,55.3%,Easy,0.1294338948393464, https://leetcode.com/problems/flood-fill
528,Random Pick with Weight,43.9%,Medium,0.12617342152539626, https://leetcode.com/problems/random-pick-with-weight
694,Number of Distinct Islands,56.0%,Medium,0.12516314295400602, https://leetcode.com/problems/number-of-distinct-islands
636,Exclusive Time of Functions,52.0%,Medium,0.12466318981419816, https://leetcode.com/problems/exclusive-time-of-functions
741,Cherry Pickup,33.9%,Hard,0.12293768624504794, https://leetcode.com/problems/cherry-pickup
133,Clone Graph,34.8%,Medium,0.1228536731053435, https://leetcode.com/problems/clone-graph
34,Find First and Last Position of Element in Sorted Array,36.2%,Medium,0.12112367112240524, https://leetcode.com/problems/find-first-and-last-position-of-element-in-sorted-array
867,Transpose Matrix,62.8%,Easy,0.11927747573936125, https://leetcode.com/problems/transpose-matrix
76,Minimum Window Substring,34.6%,Hard,0.11918851726511835, https://leetcode.com/problems/minimum-window-substring
443,String Compression,41.3%,Easy,0.11871630683938197, https://leetcode.com/problems/string-compression
332,Reconstruct Itinerary,36.7%,Medium,0.11747520126885172, https://leetcode.com/problems/reconstruct-itinerary
739,Daily Temperatures,63.3%,Medium,0.11646575243222568, https://leetcode.com/problems/daily-temperatures
268,Missing Number,51.7%,Easy,0.11538834636572094, https://leetcode.com/problems/missing-number
281,Zigzag Iterator,58.4%,Medium,0.11506932978478719, https://leetcode.com/problems/zigzag-iterator
401,Binary Watch,47.5%,Easy,0.1149222341870932, https://leetcode.com/problems/binary-watch
692,Top K Frequent Words,51.8%,Medium,0.1139616691735821, https://leetcode.com/problems/top-k-frequent-words
277,Find the Celebrity,41.8%,Medium,0.11383991212794757, https://leetcode.com/problems/find-the-celebrity
120,Triangle,44.2%,Medium,0.11325730177515365, https://leetcode.com/problems/triangle
977,Squares of a Sorted Array,72.1%,Easy,0.11148209139865584, https://leetcode.com/problems/squares-of-a-sorted-array
412,Fizz Buzz,62.3%,Easy,0.1089140648664841, https://leetcode.com/problems/fizz-buzz
472,Concatenated Words,43.7%,Hard,0.10634180122055205, https://leetcode.com/problems/concatenated-words
388,Longest Absolute File Path,41.8%,Medium,0.105981440856292, https://leetcode.com/problems/longest-absolute-file-path
128,Longest Consecutive Sequence,45.1%,Hard,0.10561054122992579, https://leetcode.com/problems/longest-consecutive-sequence
343,Integer Break,50.4%,Medium,0.10446541455492596, https://leetcode.com/problems/integer-break
796,Rotate String,49.6%,Easy,0.10392210998497661, https://leetcode.com/problems/rotate-string
986,Interval List Intersections,67.3%,Medium,0.10288907161978299, https://leetcode.com/problems/interval-list-intersections
178,Rank Scores,45.8%,Medium,0.10056698833370464, https://leetcode.com/problems/rank-scores
350,Intersection of Two Arrays II,51.4%,Easy,0.10055599252915376, https://leetcode.com/problems/intersection-of-two-arrays-ii
136,Single Number,65.5%,Easy,0.09844680818822771, https://leetcode.com/problems/single-number
218,The Skyline Problem,34.6%,Hard,0.09823843958341322, https://leetcode.com/problems/the-skyline-problem
232,Implement Queue using Stacks,49.6%,Easy,0.09690200534777553, https://leetcode.com/problems/implement-queue-using-stacks
837,New 21 Game,34.6%,Medium,0.09646026618756222, https://leetcode.com/problems/new-21-game
895,Maximum Frequency Stack,60.6%,Hard,0.09490784626439754, https://leetcode.com/problems/maximum-frequency-stack
86,Partition List,41.5%,Medium,0.09480379573736777, https://leetcode.com/problems/partition-list
344,Reverse String,68.5%,Easy,0.09446131492390734, https://leetcode.com/problems/reverse-string
33,Search in Rotated Sorted Array,34.5%,Medium,0.09336717401169674, https://leetcode.com/problems/search-in-rotated-sorted-array
87,Scramble String,33.7%,Hard,0.09333193979221914, https://leetcode.com/problems/scramble-string
140,Word Break II,32.6%,Hard,0.09311451843548549, https://leetcode.com/problems/word-break-ii
266,Palindrome Permutation,61.9%,Easy,0.091248671465145, https://leetcode.com/problems/palindrome-permutation
175,Combine Two Tables,60.8%,Easy,0.09043413926771789, https://leetcode.com/problems/combine-two-tables
973,K Closest Points to Origin,63.8%,Medium,0.08860246722187161, https://leetcode.com/problems/k-closest-points-to-origin
549,Binary Tree Longest Consecutive Sequence II,47.0%,Medium,0.08816278759467164, https://leetcode.com/problems/binary-tree-longest-consecutive-sequence-ii
256,Paint House,52.1%,Easy,0.08650924290928251, https://leetcode.com/problems/paint-house
116,Populating Next Right Pointers in Each Node,45.2%,Medium,0.08636683942300452, https://leetcode.com/problems/populating-next-right-pointers-in-each-node
771,Jewels and Stones,86.4%,Easy,0.08577683715610061, https://leetcode.com/problems/jewels-and-stones
22,Generate Parentheses,62.7%,Medium,0.08480542001364956, https://leetcode.com/problems/generate-parentheses
167,Two Sum II - Input array is sorted,54.1%,Easy,0.08467305686458218, https://leetcode.com/problems/two-sum-ii-input-array-is-sorted
283,Move Zeroes,57.8%,Easy,0.08379761717276897, https://leetcode.com/problems/move-zeroes
582,Kill Process,60.8%,Medium,0.08355588569097351, https://leetcode.com/problems/kill-process
193,Valid Phone Numbers,25.3%,Easy,0.08269171584511335, https://leetcode.com/problems/valid-phone-numbers
300,Longest Increasing Subsequence,42.6%,Medium,0.08107755786480896, https://leetcode.com/problems/longest-increasing-subsequence
43,Multiply Strings,33.9%,Medium,0.07944184170158367, https://leetcode.com/problems/multiply-strings
93,Restore IP Addresses,35.6%,Medium,0.07681317776161672, https://leetcode.com/problems/restore-ip-addresses
1221,Split a String in Balanced Strings,83.3%,Easy,0.07634057217232601, https://leetcode.com/problems/split-a-string-in-balanced-strings
77,Combinations,54.7%,Medium,0.07597820557665204, https://leetcode.com/problems/combinations
41,First Missing Positive,32.0%,Hard,0.07584078645899876, https://leetcode.com/problems/first-missing-positive
435,Non-overlapping Intervals,42.9%,Medium,0.07565042495900788, https://leetcode.com/problems/non-overlapping-intervals
515,Find Largest Value in Each Tree Row,61.1%,Medium,0.07428007438287054, https://leetcode.com/problems/find-largest-value-in-each-tree-row
273,Integer to English Words,27.1%,Hard,0.0732177031685638, https://leetcode.com/problems/integer-to-english-words
37,Sudoku Solver,43.6%,Hard,0.07095173597228444, https://leetcode.com/problems/sudoku-solver
632,Smallest Range Covering Elements from K Lists,52.4%,Hard,0.07082605256861242, https://leetcode.com/problems/smallest-range-covering-elements-from-k-lists
91,Decode Ways,24.7%,Medium,0.07076721180832166, https://leetcode.com/problems/decode-ways
470,Implement Rand10() Using Rand7(),46.3%,Medium,0.07020425867324853, https://leetcode.com/problems/implement-rand10-using-rand7
187,Repeated DNA Sequences,38.9%,Medium,0.06947237281476738, https://leetcode.com/problems/repeated-dna-sequences
460,LFU Cache,34.2%,Hard,0.06836374280939023, https://leetcode.com/problems/lfu-cache
39,Combination Sum,56.1%,Medium,0.0678648829148938, https://leetcode.com/problems/combination-sum
1011,Capacity To Ship Packages Within D Days,58.1%,Medium,0.06649420875558125, https://leetcode.com/problems/capacity-to-ship-packages-within-d-days
419,Battleships in a Board,70.0%,Medium,0.06557337705569365, https://leetcode.com/problems/battleships-in-a-board
51,N-Queens,46.6%,Hard,0.06402185876493102, https://leetcode.com/problems/n-queens
772,Basic Calculator III,41.3%,Hard,0.06331227941432688, https://leetcode.com/problems/basic-calculator-iii
647,Palindromic Substrings,60.6%,Medium,0.06329624434241725, https://leetcode.com/problems/palindromic-substrings
10,Regular Expression Matching,26.8%,Hard,0.06289183612814463, https://leetcode.com/problems/regular-expression-matching
322,Coin Change,35.5%,Medium,0.06260600694223208, https://leetcode.com/problems/coin-change
1044,Longest Duplicate Substring,31.9%,Hard,0.062325463197828765, https://leetcode.com/problems/longest-duplicate-substring
25,Reverse Nodes in k-Group,42.1%,Hard,0.062178154907672076, https://leetcode.com/problems/reverse-nodes-in-k-group
353,Design Snake Game,34.2%,Medium,0.06053284922884233, https://leetcode.com/problems/design-snake-game
333,Largest BST Subtree,35.8%,Medium,0.06053284922884233, https://leetcode.com/problems/largest-bst-subtree
11,Container With Most Water,50.8%,Medium,0.060358007567261264, https://leetcode.com/problems/container-with-most-water
448,Find All Numbers Disappeared in an Array,55.9%,Easy,0.060138358738533404, https://leetcode.com/problems/find-all-numbers-disappeared-in-an-array
45,Jump Game II,30.6%,Hard,0.05822366027889668, https://leetcode.com/problems/jump-game-ii
417,Pacific Atlantic Water Flow,41.1%,Medium,0.057523844138186606, https://leetcode.com/problems/pacific-atlantic-water-flow
890,Find and Replace Pattern,73.4%,Medium,0.0568334747631659, https://leetcode.com/problems/find-and-replace-pattern
102,Binary Tree Level Order Traversal,54.6%,Medium,0.056692473087026664, https://leetcode.com/problems/binary-tree-level-order-traversal
279,Perfect Squares,47.4%,Medium,0.05625780265009439, https://leetcode.com/problems/perfect-squares
30,Substring with Concatenation of All Words,25.4%,Hard,0.05509349054082484, https://leetcode.com/problems/substring-with-concatenation-of-all-words
149,Max Points on a Line,16.9%,Hard,0.0550597771830274, https://leetcode.com/problems/max-points-on-a-line
594,Longest Harmonious Subsequence,46.6%,Easy,0.054435206555017046, https://leetcode.com/problems/longest-harmonious-subsequence
557,Reverse Words in a String III,69.8%,Easy,0.05383068775874275, https://leetcode.com/problems/reverse-words-in-a-string-iii
1275,Find Winner on a Tic Tac Toe Game,52.8%,Easy,0.05292240145434251, https://leetcode.com/problems/find-winner-on-a-tic-tac-toe-game
687,Longest Univalue Path,36.2%,Easy,0.05212529063213289, https://leetcode.com/problems/longest-univalue-path
65,Valid Number,15.3%,Hard,0.05071509257901641, https://leetcode.com/problems/valid-number
282,Expression Add Operators,35.5%,Hard,0.049982640867735496, https://leetcode.com/problems/expression-add-operators
622,Design Circular Queue,43.7%,Medium,0.049844204077291364, https://leetcode.com/problems/design-circular-queue
518,Coin Change 2,50.2%,Medium,0.04919528672454412, https://leetcode.com/problems/coin-change-2
108,Convert Sorted Array to Binary Search Tree,57.9%,Easy,0.048909503032274274, https://leetcode.com/problems/convert-sorted-array-to-binary-search-tree
445,Add Two Numbers II,54.5%,Medium,0.04843561709959499, https://leetcode.com/problems/add-two-numbers-ii
407,Trapping Rain Water II,42.4%,Hard,0.04797082778602956, https://leetcode.com/problems/trapping-rain-water-ii
6,ZigZag Conversion,36.3%,Medium,0.04724990737071425, https://leetcode.com/problems/zigzag-conversion
486,Predict the Winner,47.9%,Medium,0.047122970130097065, https://leetcode.com/problems/predict-the-winner
336,Palindrome Pairs,33.7%,Hard,0.04690191367275952, https://leetcode.com/problems/palindrome-pairs
215,Kth Largest Element in an Array,55.4%,Medium,0.04678657567912081, https://leetcode.com/problems/kth-largest-element-in-an-array
359,Logger Rate Limiter,70.8%,Easy,0.0467617659080393, https://leetcode.com/problems/logger-rate-limiter
453,Minimum Moves to Equal Array Elements,50.2%,Easy,0.04652001563489285, https://leetcode.com/problems/minimum-moves-to-equal-array-elements
415,Add Strings,47.5%,Easy,0.04650270606183304, https://leetcode.com/problems/add-strings
442,Find All Duplicates in an Array,67.8%,Medium,0.04590593720045213, https://leetcode.com/problems/find-all-duplicates-in-an-array
191,Number of 1 Bits,49.8%,Easy,0.045812334709758235, https://leetcode.com/problems/number-of-1-bits
454,4Sum II,53.1%,Medium,0.045188410854606134, https://leetcode.com/problems/4sum-ii
198,House Robber,42.0%,Easy,0.045085832605679374, https://leetcode.com/problems/house-robber
78,Subsets,62.0%,Medium,0.044263005655043326, https://leetcode.com/problems/subsets
73,Set Matrix Zeroes,43.1%,Medium,0.043058140843689474, https://leetcode.com/problems/set-matrix-zeroes
463,Island Perimeter,65.7%,Easy,0.04304053229416362, https://leetcode.com/problems/island-perimeter
490,The Maze,51.4%,Medium,0.04287902305923364, https://leetcode.com/problems/the-maze
338,Counting Bits,69.5%,Medium,0.0428445715346785, https://leetcode.com/problems/counting-bits
540,Single Element in a Sorted Array,57.9%,Medium,0.042721256704769804, https://leetcode.com/problems/single-element-in-a-sorted-array
229,Majority Element II,35.6%,Medium,0.04237922296886145, https://leetcode.com/problems/majority-element-ii
674,Longest Continuous Increasing Subsequence,45.9%,Easy,0.04225980928988265, https://leetcode.com/problems/longest-continuous-increasing-subsequence
29,Divide Two Integers,16.4%,Medium,0.04159641425367403, https://leetcode.com/problems/divide-two-integers
169,Majority Element,58.7%,Easy,0.041581229756944955, https://leetcode.com/problems/majority-element
13,Roman to Integer,55.7%,Easy,0.04121346863130292, https://leetcode.com/problems/roman-to-integer
79,Word Search,35.6%,Medium,0.0408086655410548, https://leetcode.com/problems/word-search
907,Sum of Subarray Minimums,32.3%,Medium,0.04069737616380998, https://leetcode.com/problems/sum-of-subarray-minimums
122,Best Time to Buy and Sell Stock II,57.0%,Easy,0.04033800644917969, https://leetcode.com/problems/best-time-to-buy-and-sell-stock-ii
234,Palindrome Linked List,39.3%,Easy,0.04008106350430711, https://leetcode.com/problems/palindrome-linked-list
126,Word Ladder II,22.1%,Hard,0.04004093605556132, https://leetcode.com/problems/word-ladder-ii
542,01 Matrix,39.8%,Medium,0.03998755762600926, https://leetcode.com/problems/01-matrix
221,Maximal Square,37.7%,Medium,0.03897229680620825, https://leetcode.com/problems/maximal-square
1060,Missing Element in Sorted Array,54.5%,Medium,0.03879796954098255, https://leetcode.com/problems/missing-element-in-sorted-array
168,Excel Sheet Column Title,31.1%,Easy,0.03861483612777958, https://leetcode.com/problems/excel-sheet-column-title
24,Swap Nodes in Pairs,50.4%,Medium,0.03826607060639552, https://leetcode.com/problems/swap-nodes-in-pairs
560,Subarray Sum Equals K,43.9%,Medium,0.037871360699521406, https://leetcode.com/problems/subarray-sum-equals-k
863,All Nodes Distance K in Binary Tree,55.4%,Medium,0.037756162417993476, https://leetcode.com/problems/all-nodes-distance-k-in-binary-tree
32,Longest Valid Parentheses,28.4%,Hard,0.03595893038744387, https://leetcode.com/problems/longest-valid-parentheses
59,Spiral Matrix II,53.9%,Medium,0.0351873674509732, https://leetcode.com/problems/spiral-matrix-ii
28,Implement strStr(),34.5%,Easy,0.03494144277828229, https://leetcode.com/problems/implement-strstr
374,Guess Number Higher or Lower,43.1%,Easy,0.03422387238757742, https://leetcode.com/problems/guess-number-higher-or-lower
886,Possible Bipartition,44.2%,Medium,0.034103901828857086, https://leetcode.com/problems/possible-bipartition
287,Find the Duplicate Number,55.5%,Medium,0.033896954598043594, https://leetcode.com/problems/find-the-duplicate-number
561,Array Partition I,72.0%,Easy,0.033850542978687455, https://leetcode.com/problems/array-partition-i
480,Sliding Window Median,37.2%,Hard,0.03373001037669306, https://leetcode.com/problems/sliding-window-median
104,Maximum Depth of Binary Tree,66.0%,Easy,0.03362699323605452, https://leetcode.com/problems/maximum-depth-of-binary-tree
153,Find Minimum in Rotated Sorted Array,45.1%,Medium,0.033305576061673434, https://leetcode.com/problems/find-minimum-in-rotated-sorted-array
516,Longest Palindromic Subsequence,53.2%,Medium,0.0332870969222259, https://leetcode.com/problems/longest-palindromic-subsequence
617,Merge Two Binary Trees,74.1%,Easy,0.03264929866766111, https://leetcode.com/problems/merge-two-binary-trees
315,Count of Smaller Numbers After Self,41.5%,Hard,0.03200842244384717, https://leetcode.com/problems/count-of-smaller-numbers-after-self
1146,Snapshot Array,37.0%,Medium,0.0317991816929387, https://leetcode.com/problems/snapshot-array
1114,Print in Order,65.7%,Easy,0.0317486983145803, https://leetcode.com/problems/print-in-order
239,Sliding Window Maximum,43.0%,Hard,0.031228142547585713, https://leetcode.com/problems/sliding-window-maximum
345,Reverse Vowels of a String,44.2%,Easy,0.031112084201956228, https://leetcode.com/problems/reverse-vowels-of-a-string
304,Range Sum Query 2D - Immutable,38.6%,Medium,0.031036973995576488, https://leetcode.com/problems/range-sum-query-2d-immutable
703,Kth Largest Element in a Stream,49.7%,Easy,0.031004894819414507, https://leetcode.com/problems/kth-largest-element-in-a-stream
55,Jump Game,34.6%,Medium,0.030985252381807864, https://leetcode.com/problems/jump-game
38,Count and Say,44.6%,Easy,0.030956234663467107, https://leetcode.com/problems/count-and-say
179,Largest Number,28.8%,Medium,0.03093030069135863, https://leetcode.com/problems/largest-number
530,Minimum Absolute Difference in BST,53.8%,Easy,0.030677252247047038, https://leetcode.com/problems/minimum-absolute-difference-in-bst
207,Course Schedule,43.1%,Medium,0.030628389490117876, https://leetcode.com/problems/course-schedule
316,Remove Duplicate Letters,35.8%,Hard,0.030443751414723153, https://leetcode.com/problems/remove-duplicate-letters
101,Symmetric Tree,46.8%,Easy,0.030241699823103273, https://leetcode.com/problems/symmetric-tree
135,Candy,31.6%,Hard,0.029764101906453892, https://leetcode.com/problems/candy
1197,Minimum Knight Moves,36.1%,Medium,0.02969780239174205, https://leetcode.com/problems/minimum-knight-moves
57,Insert Interval,33.5%,Hard,0.02927990558056596, https://leetcode.com/problems/insert-interval
176,Second Highest Salary,31.6%,Easy,0.029252542837437355, https://leetcode.com/problems/second-highest-salary
1108,Defanging an IP Address,87.5%,Easy,0.02901382119071579, https://leetcode.com/problems/defanging-an-ip-address
82,Remove Duplicates from Sorted List II,36.8%,Medium,0.028950236662501776, https://leetcode.com/problems/remove-duplicates-from-sorted-list-ii
349,Intersection of Two Arrays,62.5%,Easy,0.028691227482495342, https://leetcode.com/problems/intersection-of-two-arrays
62,Unique Paths,54.1%,Medium,0.02853749186115581, https://leetcode.com/problems/unique-paths
204,Count Primes,31.5%,Easy,0.02799343042200216, https://leetcode.com/problems/count-primes
709,To Lower Case,79.3%,Easy,0.02780531308033682, https://leetcode.com/problems/to-lower-case
811,Subdomain Visit Count,69.9%,Easy,0.02772180293027194, https://leetcode.com/problems/subdomain-visit-count
68,Text Justification,27.7%,Hard,0.0276451606661453, https://leetcode.com/problems/text-justification
498,Diagonal Traverse,48.2%,Medium,0.02756894104498661, https://leetcode.com/problems/diagonal-traverse
114,Flatten Binary Tree to Linked List,49.3%,Medium,0.02730545069026746, https://leetcode.com/problems/flatten-binary-tree-to-linked-list
931,Minimum Falling Path Sum,62.5%,Medium,0.02672169681715245, https://leetcode.com/problems/minimum-falling-path-sum
373,Find K Pairs with Smallest Sums,36.7%,Medium,0.02626546261018635, https://leetcode.com/problems/find-k-pairs-with-smallest-sums
378,Kth Smallest Element in a Sorted Matrix,54.3%,Medium,0.02599048981653746, https://leetcode.com/problems/kth-smallest-element-in-a-sorted-matrix
143,Reorder List,37.1%,Medium,0.025870945598649286, https://leetcode.com/problems/reorder-list
961,N-Repeated Element in Size 2N Array,73.7%,Easy,0.025609594204324387, https://leetcode.com/problems/n-repeated-element-in-size-2n-array
1038,Binary Search Tree to Greater Sum Tree,80.8%,Medium,0.025446665661164262, https://leetcode.com/problems/binary-search-tree-to-greater-sum-tree
83,Remove Duplicates from Sorted List,45.4%,Easy,0.025174394259350617, https://leetcode.com/problems/remove-duplicates-from-sorted-list
162,Find Peak Element,43.3%,Medium,0.02516251642407408, https://leetcode.com/problems/find-peak-element
230,Kth Smallest Element in a BST,60.2%,Medium,0.025107234408906165, https://leetcode.com/problems/kth-smallest-element-in-a-bst
171,Excel Sheet Column Number,55.9%,Easy,0.025015200987536713, https://leetcode.com/problems/excel-sheet-column-number
220,Contains Duplicate III,20.9%,Medium,0.024876904755404577, https://leetcode.com/problems/contains-duplicate-iii
138,Copy List with Random Pointer,36.4%,Medium,0.02453734514188008, https://leetcode.com/problems/copy-list-with-random-pointer
310,Minimum Height Trees,32.3%,Medium,0.02446605215440636, https://leetcode.com/problems/minimum-height-trees
804,Unique Morse Code Words,77.0%,Easy,0.024332100659530644, https://leetcode.com/problems/unique-morse-code-words
151,Reverse Words in a String,21.9%,Medium,0.024321004216273485, https://leetcode.com/problems/reverse-words-in-a-string
64,Minimum Path Sum,54.5%,Medium,0.024287775531756203, https://leetcode.com/problems/minimum-path-sum
1315,Sum of Nodes with Even-Valued Grandparent,83.5%,Medium,0.023981964686485415, https://leetcode.com/problems/sum-of-nodes-with-even-valued-grandparent
326,Power of Three,42.1%,Easy,0.023341308632796296, https://leetcode.com/problems/power-of-three
211,Add and Search Word - Data structure design,38.1%,Medium,0.02333525640896379, https://leetcode.com/problems/add-and-search-word-data-structure-design
286,Walls and Gates,54.5%,Medium,0.02324334737232728, https://leetcode.com/problems/walls-and-gates
210,Course Schedule II,40.7%,Medium,0.023133880315464483, https://leetcode.com/problems/course-schedule-ii
766,Toeplitz Matrix,65.1%,Easy,0.02280600552903764, https://leetcode.com/problems/toeplitz-matrix
199,Binary Tree Right Side View,54.1%,Medium,0.022539339846061532, https://leetcode.com/problems/binary-tree-right-side-view
72,Edit Distance,44.8%,Hard,0.022400140173127806, https://leetcode.com/problems/edit-distance
105,Construct Binary Tree from Preorder and Inorder Traversal,48.8%,Medium,0.022325470299025416, https://leetcode.com/problems/construct-binary-tree-from-preorder-and-inorder-traversal
190,Reverse Bits,39.8%,Easy,0.022210041351742264, https://leetcode.com/problems/reverse-bits
231,Power of Two,43.7%,Easy,0.021776810232970734, https://leetcode.com/problems/power-of-two
40,Combination Sum II,48.2%,Medium,0.021424290044083395, https://leetcode.com/problems/combination-sum-ii
543,Diameter of Binary Tree,48.4%,Easy,0.02105617995251665, https://leetcode.com/problems/diameter-of-binary-tree
74,Search a 2D Matrix,36.5%,Medium,0.020896975877216107, https://leetcode.com/problems/search-a-2d-matrix
670,Maximum Swap,43.6%,Medium,0.020844944430365928, https://leetcode.com/problems/maximum-swap
60,Permutation Sequence,38.4%,Hard,0.020471543980187256, https://leetcode.com/problems/permutation-sequence
69,Sqrt(x),33.9%,Easy,0.020253856904497686, https://leetcode.com/problems/sqrtx
180,Consecutive Numbers,39.7%,Medium,0.02021291655585931, https://leetcode.com/problems/consecutive-numbers
166,Fraction to Recurring Decimal,21.6%,Medium,0.02015181543730795, https://leetcode.com/problems/fraction-to-recurring-decimal
525,Contiguous Array,42.8%,Medium,0.01975372873623256, https://leetcode.com/problems/contiguous-array
63,Unique Paths II,34.6%,Medium,0.01949801804099658, https://leetcode.com/problems/unique-paths-ii
669,Trim a Binary Search Tree,63.0%,Easy,0.019139340210697423, https://leetcode.com/problems/trim-a-binary-search-tree
19,Remove Nth Node From End of List,35.2%,Medium,0.019074355670058666, https://leetcode.com/problems/remove-nth-node-from-end-of-list
173,Binary Search Tree Iterator,56.6%,Medium,0.01899993824490396, https://leetcode.com/problems/binary-search-tree-iterator
721,Accounts Merge,48.8%,Medium,0.01888630262874805, https://leetcode.com/problems/accounts-merge
209,Minimum Size Subarray Sum,38.2%,Medium,0.018832948333092125, https://leetcode.com/problems/minimum-size-subarray-sum
184,Department Highest Salary,36.7%,Medium,0.018735911057469818, https://leetcode.com/problems/department-highest-salary
450,Delete Node in a BST,43.1%,Medium,0.018536211907915243, https://leetcode.com/problems/delete-node-in-a-bst
98,Validate Binary Search Tree,27.8%,Medium,0.01825801101705589, https://leetcode.com/problems/validate-binary-search-tree
347,Top K Frequent Elements,61.2%,Medium,0.018049036874660983, https://leetcode.com/problems/top-k-frequent-elements
406,Queue Reconstruction by Height,66.9%,Medium,0.01774669468133533, https://leetcode.com/problems/queue-reconstruction-by-height
383,Ransom Note,53.1%,Easy,0.017621601349819518, https://leetcode.com/problems/ransom-note
876,Middle of the Linked List,68.4%,Easy,0.01707497375257815, https://leetcode.com/problems/middle-of-the-linked-list
95,Unique Binary Search Trees II,40.6%,Medium,0.016856699181010838, https://leetcode.com/problems/unique-binary-search-trees-ii
628,Maximum Product of Three Numbers,47.1%,Easy,0.016529301951210565, https://leetcode.com/problems/maximum-product-of-three-numbers
188,Best Time to Buy and Sell Stock IV,28.0%,Hard,0.01651565203072114, https://leetcode.com/problems/best-time-to-buy-and-sell-stock-iv
1021,Remove Outermost Parentheses,78.0%,Easy,0.016434223613379935, https://leetcode.com/problems/remove-outermost-parentheses
165,Compare Version Numbers,27.4%,Medium,0.01579187969789165, https://leetcode.com/problems/compare-version-numbers
938,Range Sum of BST,81.3%,Easy,0.015707129205357877, https://leetcode.com/problems/range-sum-of-bst
1002,Find Common Characters,67.6%,Easy,0.015273301861833809, https://leetcode.com/problems/find-common-characters
118,Pascal's Triangle,52.5%,Easy,0.015123796918620345, https://leetcode.com/problems/pascals-triangle
67,Add Binary,45.2%,Easy,0.014859727755020839, https://leetcode.com/problems/add-binary
142,Linked List Cycle II,37.3%,Medium,0.014710955064667802, https://leetcode.com/problems/linked-list-cycle-ii
301,Remove Invalid Parentheses,43.3%,Hard,0.01446679841775339, https://leetcode.com/problems/remove-invalid-parentheses
912,Sort an Array,63.9%,Medium,0.01443026482902881, https://leetcode.com/problems/sort-an-array
107,Binary Tree Level Order Traversal II,53.5%,Easy,0.014395642075089957, https://leetcode.com/problems/binary-tree-level-order-traversal-ii
371,Sum of Two Integers,50.7%,Medium,0.014064929467403538, https://leetcode.com/problems/sum-of-two-integers
134,Gas Station,38.5%,Medium,0.01352742981715631, https://leetcode.com/problems/gas-station
70,Climbing Stairs,47.8%,Easy,0.013494975575004323, https://leetcode.com/problems/climbing-stairs
767,Reorganize String,48.7%,Medium,0.01329806830463147, https://leetcode.com/problems/reorganize-string
219,Contains Duplicate II,37.7%,Easy,0.01276748910345265, https://leetcode.com/problems/contains-duplicate-ii
695,Max Area of Island,62.7%,Medium,0.012686500631003836, https://leetcode.com/problems/max-area-of-island
181,Employees Earning More Than Their Managers,56.9%,Easy,0.012618463959211509, https://leetcode.com/problems/employees-earning-more-than-their-managers
226,Invert Binary Tree,65.0%,Easy,0.01235091863400913, https://leetcode.com/problems/invert-binary-tree
112,Path Sum,41.2%,Easy,0.012265076074932503, https://leetcode.com/problems/path-sum
9,Palindrome Number,48.4%,Easy,0.01209661684713821, https://leetcode.com/problems/palindrome-number
123,Best Time to Buy and Sell Stock III,37.5%,Hard,0.011261380272539033, https://leetcode.com/problems/best-time-to-buy-and-sell-stock-iii
430,Flatten a Multilevel Doubly Linked List,55.1%,Medium,0.010548621020744619, https://leetcode.com/problems/flatten-a-multilevel-doubly-linked-list
92,Reverse Linked List II,38.8%,Medium,0.010427623162259089, https://leetcode.com/problems/reverse-linked-list-ii
35,Search Insert Position,42.6%,Easy,0.010425207359624364, https://leetcode.com/problems/search-insert-position
819,Most Common Word,44.8%,Easy,0.010269666637456105, https://leetcode.com/problems/most-common-word
113,Path Sum II,46.7%,Medium,0.009784813879998279, https://leetcode.com/problems/path-sum-ii
47,Permutations II,46.4%,Medium,0.009673594178378379, https://leetcode.com/problems/permutations-ii
905,Sort Array By Parity,74.1%,Easy,0.009603915354180344, https://leetcode.com/problems/sort-array-by-parity
96,Unique Binary Search Trees,52.9%,Medium,0.009242209964820877, https://leetcode.com/problems/unique-binary-search-trees
208,Implement Trie (Prefix Tree),49.4%,Medium,0.009105457856626612, https://leetcode.com/problems/implement-trie-prefix-tree
416,Partition Equal Subset Sum,43.7%,Medium,0.008686265255960345, https://leetcode.com/problems/partition-equal-subset-sum
700,Search in a Binary Search Tree,73.1%,Easy,0.008512500860171227, https://leetcode.com/problems/search-in-a-binary-search-tree
937,Reorder Data in Log Files,54.3%,Easy,0.008415787099648575, https://leetcode.com/problems/reorder-data-in-log-files
763,Partition Labels,76.1%,Medium,0.008385793376274025, https://leetcode.com/problems/partition-labels
26,Remove Duplicates from Sorted Array,45.1%,Easy,0.007782518973063169, https://leetcode.com/problems/remove-duplicates-from-sorted-array
240,Search a 2D Matrix II,43.2%,Medium,0.0075829747244553335, https://leetcode.com/problems/search-a-2d-matrix-ii
66,Plus One,43.0%,Easy,0.007324847595025828, https://leetcode.com/problems/plus-one
110,Balanced Binary Tree,43.5%,Easy,0.007027435807456887, https://leetcode.com/problems/balanced-binary-tree
103,Binary Tree Zigzag Level Order Traversal,48.3%,Medium,0.006816368572598042, https://leetcode.com/problems/binary-tree-zigzag-level-order-traversal
111,Minimum Depth of Binary Tree,37.4%,Easy,0.0066203485760693214, https://leetcode.com/problems/minimum-depth-of-binary-tree
100,Same Tree,53.4%,Easy,0.005620163024677507, https://leetcode.com/problems/same-tree
50,Pow(x, n),30.3%,Medium,0.0055950070772402055, https://leetcode.com/problems/powx-n
621,Task Scheduler,50.1%,Medium,0.005261323957171611, https://leetcode.com/problems/task-scheduler
237,Delete Node in a Linked List,63.8%,Easy,0.005144705881237697, https://leetcode.com/problems/delete-node-in-a-linked-list
258,Add Digits,57.6%,Easy,0.004648528591812259, https://leetcode.com/problems/add-digits
217,Contains Duplicate,56.0%,Easy,0.0037979536727587773, https://leetcode.com/problems/contains-duplicate
203,Remove Linked List Elements,38.6%,Easy,0.0036496390875494257, https://leetcode.com/problems/remove-linked-list-elements
94,Binary Tree Inorder Traversal,63.3%,Medium,0.0033551449021403577, https://leetcode.com/problems/binary-tree-inorder-traversal
309,Best Time to Buy and Sell Stock with Cooldown,47.4%,Medium,0.0028498166907604426, https://leetcode.com/problems/best-time-to-buy-and-sell-stock-with-cooldown
260,Single Number III,64.3%,Medium,0.0020288097849578786, https://leetcode.com/problems/single-number-iii
1 1 Two Sum 45.6% Easy 1.3239393390446 https://leetcode.com/problems/two-sum
2 284 Peeking Iterator 45.7% Medium 1.225806299790293 https://leetcode.com/problems/peeking-iterator
3 146 LRU Cache 33.2% Medium 1.1817054748912657 https://leetcode.com/problems/lru-cache
4 1095 Find in Mountain Array 35.8% Hard 1.0835724356369587 https://leetcode.com/problems/find-in-mountain-array
5 391 Perfect Rectangle 30.5% Hard 0.9854393963826518 https://leetcode.com/problems/perfect-rectangle
6 403 Frog Jump 39.7% Hard 0.977549850058533 https://leetcode.com/problems/frog-jump
7 2 Add Two Numbers 33.9% Medium 0.9760771681710703 https://leetcode.com/problems/add-two-numbers
8 341 Flatten Nested List Iterator 52.9% Medium 0.9601739460032599 https://leetcode.com/problems/flatten-nested-list-iterator
9 53 Maximum Subarray 46.5% Easy 0.9397769028056373 https://leetcode.com/problems/maximum-subarray
10 42 Trapping Rain Water 48.9% Hard 0.8416438635513304 https://leetcode.com/problems/trapping-rain-water
11 428 Serialize and Deserialize N-ary Tree 59.4% Hard 0.8184023944755309 https://leetcode.com/problems/serialize-and-deserialize-n-ary-tree
12 4 Median of Two Sorted Arrays 29.6% Hard 0.7804874458075195 https://leetcode.com/problems/median-of-two-sorted-arrays
13 97 Interleaving String 31.5% Hard 0.6933519806963994 https://leetcode.com/problems/interleaving-string
14 295 Find Median from Data Stream 44.3% Hard 0.6374386685560265 https://leetcode.com/problems/find-median-from-data-stream
15 212 Word Search II 34.9% Hard 0.5393056293017195 https://leetcode.com/problems/word-search-ii
16 311 Sparse Matrix Multiplication 61.9% Medium 0.4503238876572249 https://leetcode.com/problems/sparse-matrix-multiplication
17 200 Number of Islands 46.8% Medium 0.44929804774434284 https://leetcode.com/problems/number-of-islands
18 479 Largest Palindrome Product 29.0% Hard 0.44183275227903923 https://leetcode.com/problems/largest-palindrome-product
19 49 Group Anagrams 56.9% Medium 0.40816116873735864 https://leetcode.com/problems/group-anagrams
20 688 Knight Probability in Chessboard 48.9% Medium 0.38977851194046487 https://leetcode.com/problems/knight-probability-in-chessboard
21 351 Android Unlock Patterns 48.4% Medium 0.38282263135840455 https://leetcode.com/problems/android-unlock-patterns
22 981 Time Based Key-Value Store 53.1% Medium 0.3755723540313778 https://leetcode.com/problems/time-based-key-value-store
23 227 Basic Calculator II 36.9% Medium 0.3709825801608562 https://leetcode.com/problems/basic-calculator-ii
24 206 Reverse Linked List 62.5% Easy 0.3555322708386157 https://leetcode.com/problems/reverse-linked-list
25 329 Longest Increasing Path in a Matrix 43.4% Hard 0.34223732585313005 https://leetcode.com/problems/longest-increasing-path-in-a-matrix
26 56 Merge Intervals 39.3% Medium 0.324649020144345 https://leetcode.com/problems/merge-intervals
27 12 Integer to Roman 55.1% Medium 0.30898314806430144 https://leetcode.com/problems/integer-to-roman
28 177 Nth Highest Salary 31.4% Medium 0.3088994656700207 https://leetcode.com/problems/nth-highest-salary
29 202 Happy Number 50.4% Easy 0.3027727255563815 https://leetcode.com/problems/happy-number
30 724 Find Pivot Index 44.0% Easy 0.29912265485367395 https://leetcode.com/problems/find-pivot-index
31 1229 Meeting Scheduler 52.7% Medium 0.2955601745092634 https://leetcode.com/problems/meeting-scheduler
32 387 First Unique Character in a String 53.4% Easy 0.2924677090124108 https://leetcode.com/problems/first-unique-character-in-a-string
33 996 Number of Squareful Arrays 47.8% Hard 0.28675913745318005 https://leetcode.com/problems/number-of-squareful-arrays
34 54 Spiral Matrix 34.1% Medium 0.28079436421311554 https://leetcode.com/problems/spiral-matrix
35 15 3Sum 26.8% Medium 0.2753610195122021 https://leetcode.com/problems/3sum
36 5 Longest Palindromic Substring 29.5% Medium 0.2637368700238773 https://leetcode.com/problems/longest-palindromic-substring
37 348 Design Tic-Tac-Toe 54.3% Medium 0.2625527836498761 https://leetcode.com/problems/design-tic-tac-toe
38 21 Merge Two Sorted Lists 53.5% Easy 0.2612738868325316 https://leetcode.com/problems/merge-two-sorted-lists
39 609 Find Duplicate File in System 59.5% Medium 0.25388017696233983 https://leetcode.com/problems/find-duplicate-file-in-system
40 238 Product of Array Except Self 60.1% Medium 0.25039509932624693 https://leetcode.com/problems/product-of-array-except-self
41 139 Word Break 40.1% Medium 0.24836185186023652 https://leetcode.com/problems/word-break
42 251 Flatten 2D Vector 45.7% Medium 0.2425088583672668 https://leetcode.com/problems/flatten-2d-vector
43 545 Boundary of Binary Tree 38.9% Medium 0.235382573048932 https://leetcode.com/problems/boundary-of-binary-tree
44 3 Longest Substring Without Repeating Characters 30.4% Medium 0.23357430753991837 https://leetcode.com/problems/longest-substring-without-repeating-characters
45 48 Rotate Image 56.7% Medium 0.22339894653970727 https://leetcode.com/problems/rotate-image
46 18 4Sum 33.7% Medium 0.22096511694444815 https://leetcode.com/problems/4sum
47 8 String to Integer (atoi) 15.4% Medium 0.2176759858041558 https://leetcode.com/problems/string-to-integer-atoi
48 393 UTF-8 Validation 37.5% Medium 0.2166710368085923 https://leetcode.com/problems/utf-8-validation
49 661 Image Smoother 51.5% Easy 0.21106039931128698 https://leetcode.com/problems/image-smoother
50 729 My Calendar I 51.8% Medium 0.20856657856743668 https://leetcode.com/problems/my-calendar-i
51 362 Design Hit Counter 63.7% Medium 0.20812125379246896 https://leetcode.com/problems/design-hit-counter
52 23 Merge k Sorted Lists 40.2% Hard 0.20567737841612924 https://leetcode.com/problems/merge-k-sorted-lists
53 233 Number of Digit One 31.3% Hard 0.20157261209600713 https://leetcode.com/problems/number-of-digit-one
54 836 Rectangle Overlap 48.6% Easy 0.19944370144318244 https://leetcode.com/problems/rectangle-overlap
55 36 Valid Sudoku 48.7% Medium 0.1991463806942981 https://leetcode.com/problems/valid-sudoku
56 706 Design HashMap 61.3% Easy 0.1960785423771685 https://leetcode.com/problems/design-hashmap
57 46 Permutations 63.5% Medium 0.18816690901782251 https://leetcode.com/problems/permutations
58 658 Find K Closest Elements 40.9% Medium 0.18663941293482042 https://leetcode.com/problems/find-k-closest-elements
59 394 Decode String 50.0% Medium 0.18648126820299707 https://leetcode.com/problems/decode-string
60 253 Meeting Rooms II 45.7% Medium 0.18465102561460048 https://leetcode.com/problems/meeting-rooms-ii
61 911 Online Election 50.4% Medium 0.1741842396477574 https://leetcode.com/problems/online-election
62 1278 Palindrome Partitioning III 59.9% Hard 0.17284281283941086 https://leetcode.com/problems/palindrome-partitioning-iii
63 223 Rectangle Area 37.8% Medium 0.172469260350943 https://leetcode.com/problems/rectangle-area
64 7 Reverse Integer 25.8% Easy 0.1708373626727859 https://leetcode.com/problems/reverse-integer
65 31 Next Permutation 32.6% Medium 0.16698476137397944 https://leetcode.com/problems/next-permutation
66 642 Design Search Autocomplete System 44.7% Hard 0.16312782492496253 https://leetcode.com/problems/design-search-autocomplete-system
67 821 Shortest Distance to a Character 66.9% Easy 0.16229864091884685 https://leetcode.com/problems/shortest-distance-to-a-character
68 242 Valid Anagram 56.9% Easy 0.1620140669319784 https://leetcode.com/problems/valid-anagram
69 155 Min Stack 44.5% Easy 0.15817175770099312 https://leetcode.com/problems/min-stack
70 88 Merge Sorted Array 39.4% Easy 0.15664551938695154 https://leetcode.com/problems/merge-sorted-array
71 381 Insert Delete GetRandom O(1) - Duplicates allowed 34.1% Hard 0.15656906069153992 https://leetcode.com/problems/insert-delete-getrandom-o1-duplicates-allowed
72 125 Valid Palindrome 36.7% Easy 0.15573056017039402 https://leetcode.com/problems/valid-palindrome
73 20 Valid Parentheses 39.0% Easy 0.15392855906669206 https://leetcode.com/problems/valid-parentheses
74 14 Longest Common Prefix 35.4% Easy 0.15097420446868728 https://leetcode.com/problems/longest-common-prefix
75 17 Letter Combinations of a Phone Number 46.8% Medium 0.14740025304271914 https://leetcode.com/problems/letter-combinations-of-a-phone-number
76 380 Insert Delete GetRandom O(1) 47.5% Medium 0.1466146891661091 https://leetcode.com/problems/insert-delete-getrandom-o1
77 269 Alien Dictionary 33.3% Hard 0.14578781346149866 https://leetcode.com/problems/alien-dictionary
78 909 Snakes and Ladders 38.4% Medium 0.14465605390747982 https://leetcode.com/problems/snakes-and-ladders
79 546 Remove Boxes 42.7% Hard 0.14361551169114867 https://leetcode.com/problems/remove-boxes
80 121 Best Time to Buy and Sell Stock 50.5% Easy 0.14290237960985536 https://leetcode.com/problems/best-time-to-buy-and-sell-stock
81 16 3Sum Closest 46.0% Medium 0.14234512850929823 https://leetcode.com/problems/3sum-closest
82 75 Sort Colors 47.3% Medium 0.14097981038702445 https://leetcode.com/problems/sort-colors
83 127 Word Ladder 29.6% Medium 0.13969675545163246 https://leetcode.com/problems/word-ladder
84 141 Linked List Cycle 41.1% Easy 0.13790757618343236 https://leetcode.com/problems/linked-list-cycle
85 427 Construct Quad Tree 61.4% Medium 0.13580154115906176 https://leetcode.com/problems/construct-quad-tree
86 509 Fibonacci Number 67.2% Easy 0.1350250115835784 https://leetcode.com/problems/fibonacci-number
87 297 Serialize and Deserialize Binary Tree 47.5% Hard 0.13437443205326582 https://leetcode.com/problems/serialize-and-deserialize-binary-tree
88 236 Lowest Common Ancestor of a Binary Tree 45.7% Medium 0.13360522333074684 https://leetcode.com/problems/lowest-common-ancestor-of-a-binary-tree
89 195 Tenth Line 33.0% Easy 0.1329388000145885 https://leetcode.com/problems/tenth-line
90 124 Binary Tree Maximum Path Sum 34.3% Hard 0.12986708079202924 https://leetcode.com/problems/binary-tree-maximum-path-sum
91 384 Shuffle an Array 52.8% Medium 0.12953764257899986 https://leetcode.com/problems/shuffle-an-array
92 733 Flood Fill 55.3% Easy 0.1294338948393464 https://leetcode.com/problems/flood-fill
93 528 Random Pick with Weight 43.9% Medium 0.12617342152539626 https://leetcode.com/problems/random-pick-with-weight
94 694 Number of Distinct Islands 56.0% Medium 0.12516314295400602 https://leetcode.com/problems/number-of-distinct-islands
95 636 Exclusive Time of Functions 52.0% Medium 0.12466318981419816 https://leetcode.com/problems/exclusive-time-of-functions
96 741 Cherry Pickup 33.9% Hard 0.12293768624504794 https://leetcode.com/problems/cherry-pickup
97 133 Clone Graph 34.8% Medium 0.1228536731053435 https://leetcode.com/problems/clone-graph
98 34 Find First and Last Position of Element in Sorted Array 36.2% Medium 0.12112367112240524 https://leetcode.com/problems/find-first-and-last-position-of-element-in-sorted-array
99 867 Transpose Matrix 62.8% Easy 0.11927747573936125 https://leetcode.com/problems/transpose-matrix
100 76 Minimum Window Substring 34.6% Hard 0.11918851726511835 https://leetcode.com/problems/minimum-window-substring
101 443 String Compression 41.3% Easy 0.11871630683938197 https://leetcode.com/problems/string-compression
102 332 Reconstruct Itinerary 36.7% Medium 0.11747520126885172 https://leetcode.com/problems/reconstruct-itinerary
103 739 Daily Temperatures 63.3% Medium 0.11646575243222568 https://leetcode.com/problems/daily-temperatures
104 268 Missing Number 51.7% Easy 0.11538834636572094 https://leetcode.com/problems/missing-number
105 281 Zigzag Iterator 58.4% Medium 0.11506932978478719 https://leetcode.com/problems/zigzag-iterator
106 401 Binary Watch 47.5% Easy 0.1149222341870932 https://leetcode.com/problems/binary-watch
107 692 Top K Frequent Words 51.8% Medium 0.1139616691735821 https://leetcode.com/problems/top-k-frequent-words
108 277 Find the Celebrity 41.8% Medium 0.11383991212794757 https://leetcode.com/problems/find-the-celebrity
109 120 Triangle 44.2% Medium 0.11325730177515365 https://leetcode.com/problems/triangle
110 977 Squares of a Sorted Array 72.1% Easy 0.11148209139865584 https://leetcode.com/problems/squares-of-a-sorted-array
111 412 Fizz Buzz 62.3% Easy 0.1089140648664841 https://leetcode.com/problems/fizz-buzz
112 472 Concatenated Words 43.7% Hard 0.10634180122055205 https://leetcode.com/problems/concatenated-words
113 388 Longest Absolute File Path 41.8% Medium 0.105981440856292 https://leetcode.com/problems/longest-absolute-file-path
114 128 Longest Consecutive Sequence 45.1% Hard 0.10561054122992579 https://leetcode.com/problems/longest-consecutive-sequence
115 343 Integer Break 50.4% Medium 0.10446541455492596 https://leetcode.com/problems/integer-break
116 796 Rotate String 49.6% Easy 0.10392210998497661 https://leetcode.com/problems/rotate-string
117 986 Interval List Intersections 67.3% Medium 0.10288907161978299 https://leetcode.com/problems/interval-list-intersections
118 178 Rank Scores 45.8% Medium 0.10056698833370464 https://leetcode.com/problems/rank-scores
119 350 Intersection of Two Arrays II 51.4% Easy 0.10055599252915376 https://leetcode.com/problems/intersection-of-two-arrays-ii
120 136 Single Number 65.5% Easy 0.09844680818822771 https://leetcode.com/problems/single-number
121 218 The Skyline Problem 34.6% Hard 0.09823843958341322 https://leetcode.com/problems/the-skyline-problem
122 232 Implement Queue using Stacks 49.6% Easy 0.09690200534777553 https://leetcode.com/problems/implement-queue-using-stacks
123 837 New 21 Game 34.6% Medium 0.09646026618756222 https://leetcode.com/problems/new-21-game
124 895 Maximum Frequency Stack 60.6% Hard 0.09490784626439754 https://leetcode.com/problems/maximum-frequency-stack
125 86 Partition List 41.5% Medium 0.09480379573736777 https://leetcode.com/problems/partition-list
126 344 Reverse String 68.5% Easy 0.09446131492390734 https://leetcode.com/problems/reverse-string
127 33 Search in Rotated Sorted Array 34.5% Medium 0.09336717401169674 https://leetcode.com/problems/search-in-rotated-sorted-array
128 87 Scramble String 33.7% Hard 0.09333193979221914 https://leetcode.com/problems/scramble-string
129 140 Word Break II 32.6% Hard 0.09311451843548549 https://leetcode.com/problems/word-break-ii
130 266 Palindrome Permutation 61.9% Easy 0.091248671465145 https://leetcode.com/problems/palindrome-permutation
131 175 Combine Two Tables 60.8% Easy 0.09043413926771789 https://leetcode.com/problems/combine-two-tables
132 973 K Closest Points to Origin 63.8% Medium 0.08860246722187161 https://leetcode.com/problems/k-closest-points-to-origin
133 549 Binary Tree Longest Consecutive Sequence II 47.0% Medium 0.08816278759467164 https://leetcode.com/problems/binary-tree-longest-consecutive-sequence-ii
134 256 Paint House 52.1% Easy 0.08650924290928251 https://leetcode.com/problems/paint-house
135 116 Populating Next Right Pointers in Each Node 45.2% Medium 0.08636683942300452 https://leetcode.com/problems/populating-next-right-pointers-in-each-node
136 771 Jewels and Stones 86.4% Easy 0.08577683715610061 https://leetcode.com/problems/jewels-and-stones
137 22 Generate Parentheses 62.7% Medium 0.08480542001364956 https://leetcode.com/problems/generate-parentheses
138 167 Two Sum II - Input array is sorted 54.1% Easy 0.08467305686458218 https://leetcode.com/problems/two-sum-ii-input-array-is-sorted
139 283 Move Zeroes 57.8% Easy 0.08379761717276897 https://leetcode.com/problems/move-zeroes
140 582 Kill Process 60.8% Medium 0.08355588569097351 https://leetcode.com/problems/kill-process
141 193 Valid Phone Numbers 25.3% Easy 0.08269171584511335 https://leetcode.com/problems/valid-phone-numbers
142 300 Longest Increasing Subsequence 42.6% Medium 0.08107755786480896 https://leetcode.com/problems/longest-increasing-subsequence
143 43 Multiply Strings 33.9% Medium 0.07944184170158367 https://leetcode.com/problems/multiply-strings
144 93 Restore IP Addresses 35.6% Medium 0.07681317776161672 https://leetcode.com/problems/restore-ip-addresses
145 1221 Split a String in Balanced Strings 83.3% Easy 0.07634057217232601 https://leetcode.com/problems/split-a-string-in-balanced-strings
146 77 Combinations 54.7% Medium 0.07597820557665204 https://leetcode.com/problems/combinations
147 41 First Missing Positive 32.0% Hard 0.07584078645899876 https://leetcode.com/problems/first-missing-positive
148 435 Non-overlapping Intervals 42.9% Medium 0.07565042495900788 https://leetcode.com/problems/non-overlapping-intervals
149 515 Find Largest Value in Each Tree Row 61.1% Medium 0.07428007438287054 https://leetcode.com/problems/find-largest-value-in-each-tree-row
150 273 Integer to English Words 27.1% Hard 0.0732177031685638 https://leetcode.com/problems/integer-to-english-words
151 37 Sudoku Solver 43.6% Hard 0.07095173597228444 https://leetcode.com/problems/sudoku-solver
152 632 Smallest Range Covering Elements from K Lists 52.4% Hard 0.07082605256861242 https://leetcode.com/problems/smallest-range-covering-elements-from-k-lists
153 91 Decode Ways 24.7% Medium 0.07076721180832166 https://leetcode.com/problems/decode-ways
154 470 Implement Rand10() Using Rand7() 46.3% Medium 0.07020425867324853 https://leetcode.com/problems/implement-rand10-using-rand7
155 187 Repeated DNA Sequences 38.9% Medium 0.06947237281476738 https://leetcode.com/problems/repeated-dna-sequences
156 460 LFU Cache 34.2% Hard 0.06836374280939023 https://leetcode.com/problems/lfu-cache
157 39 Combination Sum 56.1% Medium 0.0678648829148938 https://leetcode.com/problems/combination-sum
158 1011 Capacity To Ship Packages Within D Days 58.1% Medium 0.06649420875558125 https://leetcode.com/problems/capacity-to-ship-packages-within-d-days
159 419 Battleships in a Board 70.0% Medium 0.06557337705569365 https://leetcode.com/problems/battleships-in-a-board
160 51 N-Queens 46.6% Hard 0.06402185876493102 https://leetcode.com/problems/n-queens
161 772 Basic Calculator III 41.3% Hard 0.06331227941432688 https://leetcode.com/problems/basic-calculator-iii
162 647 Palindromic Substrings 60.6% Medium 0.06329624434241725 https://leetcode.com/problems/palindromic-substrings
163 10 Regular Expression Matching 26.8% Hard 0.06289183612814463 https://leetcode.com/problems/regular-expression-matching
164 322 Coin Change 35.5% Medium 0.06260600694223208 https://leetcode.com/problems/coin-change
165 1044 Longest Duplicate Substring 31.9% Hard 0.062325463197828765 https://leetcode.com/problems/longest-duplicate-substring
166 25 Reverse Nodes in k-Group 42.1% Hard 0.062178154907672076 https://leetcode.com/problems/reverse-nodes-in-k-group
167 353 Design Snake Game 34.2% Medium 0.06053284922884233 https://leetcode.com/problems/design-snake-game
168 333 Largest BST Subtree 35.8% Medium 0.06053284922884233 https://leetcode.com/problems/largest-bst-subtree
169 11 Container With Most Water 50.8% Medium 0.060358007567261264 https://leetcode.com/problems/container-with-most-water
170 448 Find All Numbers Disappeared in an Array 55.9% Easy 0.060138358738533404 https://leetcode.com/problems/find-all-numbers-disappeared-in-an-array
171 45 Jump Game II 30.6% Hard 0.05822366027889668 https://leetcode.com/problems/jump-game-ii
172 417 Pacific Atlantic Water Flow 41.1% Medium 0.057523844138186606 https://leetcode.com/problems/pacific-atlantic-water-flow
173 890 Find and Replace Pattern 73.4% Medium 0.0568334747631659 https://leetcode.com/problems/find-and-replace-pattern
174 102 Binary Tree Level Order Traversal 54.6% Medium 0.056692473087026664 https://leetcode.com/problems/binary-tree-level-order-traversal
175 279 Perfect Squares 47.4% Medium 0.05625780265009439 https://leetcode.com/problems/perfect-squares
176 30 Substring with Concatenation of All Words 25.4% Hard 0.05509349054082484 https://leetcode.com/problems/substring-with-concatenation-of-all-words
177 149 Max Points on a Line 16.9% Hard 0.0550597771830274 https://leetcode.com/problems/max-points-on-a-line
178 594 Longest Harmonious Subsequence 46.6% Easy 0.054435206555017046 https://leetcode.com/problems/longest-harmonious-subsequence
179 557 Reverse Words in a String III 69.8% Easy 0.05383068775874275 https://leetcode.com/problems/reverse-words-in-a-string-iii
180 1275 Find Winner on a Tic Tac Toe Game 52.8% Easy 0.05292240145434251 https://leetcode.com/problems/find-winner-on-a-tic-tac-toe-game
181 687 Longest Univalue Path 36.2% Easy 0.05212529063213289 https://leetcode.com/problems/longest-univalue-path
182 65 Valid Number 15.3% Hard 0.05071509257901641 https://leetcode.com/problems/valid-number
183 282 Expression Add Operators 35.5% Hard 0.049982640867735496 https://leetcode.com/problems/expression-add-operators
184 622 Design Circular Queue 43.7% Medium 0.049844204077291364 https://leetcode.com/problems/design-circular-queue
185 518 Coin Change 2 50.2% Medium 0.04919528672454412 https://leetcode.com/problems/coin-change-2
186 108 Convert Sorted Array to Binary Search Tree 57.9% Easy 0.048909503032274274 https://leetcode.com/problems/convert-sorted-array-to-binary-search-tree
187 445 Add Two Numbers II 54.5% Medium 0.04843561709959499 https://leetcode.com/problems/add-two-numbers-ii
188 407 Trapping Rain Water II 42.4% Hard 0.04797082778602956 https://leetcode.com/problems/trapping-rain-water-ii
189 6 ZigZag Conversion 36.3% Medium 0.04724990737071425 https://leetcode.com/problems/zigzag-conversion
190 486 Predict the Winner 47.9% Medium 0.047122970130097065 https://leetcode.com/problems/predict-the-winner
191 336 Palindrome Pairs 33.7% Hard 0.04690191367275952 https://leetcode.com/problems/palindrome-pairs
192 215 Kth Largest Element in an Array 55.4% Medium 0.04678657567912081 https://leetcode.com/problems/kth-largest-element-in-an-array
193 359 Logger Rate Limiter 70.8% Easy 0.0467617659080393 https://leetcode.com/problems/logger-rate-limiter
194 453 Minimum Moves to Equal Array Elements 50.2% Easy 0.04652001563489285 https://leetcode.com/problems/minimum-moves-to-equal-array-elements
195 415 Add Strings 47.5% Easy 0.04650270606183304 https://leetcode.com/problems/add-strings
196 442 Find All Duplicates in an Array 67.8% Medium 0.04590593720045213 https://leetcode.com/problems/find-all-duplicates-in-an-array
197 191 Number of 1 Bits 49.8% Easy 0.045812334709758235 https://leetcode.com/problems/number-of-1-bits
198 454 4Sum II 53.1% Medium 0.045188410854606134 https://leetcode.com/problems/4sum-ii
199 198 House Robber 42.0% Easy 0.045085832605679374 https://leetcode.com/problems/house-robber
200 78 Subsets 62.0% Medium 0.044263005655043326 https://leetcode.com/problems/subsets
201 73 Set Matrix Zeroes 43.1% Medium 0.043058140843689474 https://leetcode.com/problems/set-matrix-zeroes
202 463 Island Perimeter 65.7% Easy 0.04304053229416362 https://leetcode.com/problems/island-perimeter
203 490 The Maze 51.4% Medium 0.04287902305923364 https://leetcode.com/problems/the-maze
204 338 Counting Bits 69.5% Medium 0.0428445715346785 https://leetcode.com/problems/counting-bits
205 540 Single Element in a Sorted Array 57.9% Medium 0.042721256704769804 https://leetcode.com/problems/single-element-in-a-sorted-array
206 229 Majority Element II 35.6% Medium 0.04237922296886145 https://leetcode.com/problems/majority-element-ii
207 674 Longest Continuous Increasing Subsequence 45.9% Easy 0.04225980928988265 https://leetcode.com/problems/longest-continuous-increasing-subsequence
208 29 Divide Two Integers 16.4% Medium 0.04159641425367403 https://leetcode.com/problems/divide-two-integers
209 169 Majority Element 58.7% Easy 0.041581229756944955 https://leetcode.com/problems/majority-element
210 13 Roman to Integer 55.7% Easy 0.04121346863130292 https://leetcode.com/problems/roman-to-integer
211 79 Word Search 35.6% Medium 0.0408086655410548 https://leetcode.com/problems/word-search
212 907 Sum of Subarray Minimums 32.3% Medium 0.04069737616380998 https://leetcode.com/problems/sum-of-subarray-minimums
213 122 Best Time to Buy and Sell Stock II 57.0% Easy 0.04033800644917969 https://leetcode.com/problems/best-time-to-buy-and-sell-stock-ii
214 234 Palindrome Linked List 39.3% Easy 0.04008106350430711 https://leetcode.com/problems/palindrome-linked-list
215 126 Word Ladder II 22.1% Hard 0.04004093605556132 https://leetcode.com/problems/word-ladder-ii
216 542 01 Matrix 39.8% Medium 0.03998755762600926 https://leetcode.com/problems/01-matrix
217 221 Maximal Square 37.7% Medium 0.03897229680620825 https://leetcode.com/problems/maximal-square
218 1060 Missing Element in Sorted Array 54.5% Medium 0.03879796954098255 https://leetcode.com/problems/missing-element-in-sorted-array
219 168 Excel Sheet Column Title 31.1% Easy 0.03861483612777958 https://leetcode.com/problems/excel-sheet-column-title
220 24 Swap Nodes in Pairs 50.4% Medium 0.03826607060639552 https://leetcode.com/problems/swap-nodes-in-pairs
221 560 Subarray Sum Equals K 43.9% Medium 0.037871360699521406 https://leetcode.com/problems/subarray-sum-equals-k
222 863 All Nodes Distance K in Binary Tree 55.4% Medium 0.037756162417993476 https://leetcode.com/problems/all-nodes-distance-k-in-binary-tree
223 32 Longest Valid Parentheses 28.4% Hard 0.03595893038744387 https://leetcode.com/problems/longest-valid-parentheses
224 59 Spiral Matrix II 53.9% Medium 0.0351873674509732 https://leetcode.com/problems/spiral-matrix-ii
225 28 Implement strStr() 34.5% Easy 0.03494144277828229 https://leetcode.com/problems/implement-strstr
226 374 Guess Number Higher or Lower 43.1% Easy 0.03422387238757742 https://leetcode.com/problems/guess-number-higher-or-lower
227 886 Possible Bipartition 44.2% Medium 0.034103901828857086 https://leetcode.com/problems/possible-bipartition
228 287 Find the Duplicate Number 55.5% Medium 0.033896954598043594 https://leetcode.com/problems/find-the-duplicate-number
229 561 Array Partition I 72.0% Easy 0.033850542978687455 https://leetcode.com/problems/array-partition-i
230 480 Sliding Window Median 37.2% Hard 0.03373001037669306 https://leetcode.com/problems/sliding-window-median
231 104 Maximum Depth of Binary Tree 66.0% Easy 0.03362699323605452 https://leetcode.com/problems/maximum-depth-of-binary-tree
232 153 Find Minimum in Rotated Sorted Array 45.1% Medium 0.033305576061673434 https://leetcode.com/problems/find-minimum-in-rotated-sorted-array
233 516 Longest Palindromic Subsequence 53.2% Medium 0.0332870969222259 https://leetcode.com/problems/longest-palindromic-subsequence
234 617 Merge Two Binary Trees 74.1% Easy 0.03264929866766111 https://leetcode.com/problems/merge-two-binary-trees
235 315 Count of Smaller Numbers After Self 41.5% Hard 0.03200842244384717 https://leetcode.com/problems/count-of-smaller-numbers-after-self
236 1146 Snapshot Array 37.0% Medium 0.0317991816929387 https://leetcode.com/problems/snapshot-array
237 1114 Print in Order 65.7% Easy 0.0317486983145803 https://leetcode.com/problems/print-in-order
238 239 Sliding Window Maximum 43.0% Hard 0.031228142547585713 https://leetcode.com/problems/sliding-window-maximum
239 345 Reverse Vowels of a String 44.2% Easy 0.031112084201956228 https://leetcode.com/problems/reverse-vowels-of-a-string
240 304 Range Sum Query 2D - Immutable 38.6% Medium 0.031036973995576488 https://leetcode.com/problems/range-sum-query-2d-immutable
241 703 Kth Largest Element in a Stream 49.7% Easy 0.031004894819414507 https://leetcode.com/problems/kth-largest-element-in-a-stream
242 55 Jump Game 34.6% Medium 0.030985252381807864 https://leetcode.com/problems/jump-game
243 38 Count and Say 44.6% Easy 0.030956234663467107 https://leetcode.com/problems/count-and-say
244 179 Largest Number 28.8% Medium 0.03093030069135863 https://leetcode.com/problems/largest-number
245 530 Minimum Absolute Difference in BST 53.8% Easy 0.030677252247047038 https://leetcode.com/problems/minimum-absolute-difference-in-bst
246 207 Course Schedule 43.1% Medium 0.030628389490117876 https://leetcode.com/problems/course-schedule
247 316 Remove Duplicate Letters 35.8% Hard 0.030443751414723153 https://leetcode.com/problems/remove-duplicate-letters
248 101 Symmetric Tree 46.8% Easy 0.030241699823103273 https://leetcode.com/problems/symmetric-tree
249 135 Candy 31.6% Hard 0.029764101906453892 https://leetcode.com/problems/candy
250 1197 Minimum Knight Moves 36.1% Medium 0.02969780239174205 https://leetcode.com/problems/minimum-knight-moves
251 57 Insert Interval 33.5% Hard 0.02927990558056596 https://leetcode.com/problems/insert-interval
252 176 Second Highest Salary 31.6% Easy 0.029252542837437355 https://leetcode.com/problems/second-highest-salary
253 1108 Defanging an IP Address 87.5% Easy 0.02901382119071579 https://leetcode.com/problems/defanging-an-ip-address
254 82 Remove Duplicates from Sorted List II 36.8% Medium 0.028950236662501776 https://leetcode.com/problems/remove-duplicates-from-sorted-list-ii
255 349 Intersection of Two Arrays 62.5% Easy 0.028691227482495342 https://leetcode.com/problems/intersection-of-two-arrays
256 62 Unique Paths 54.1% Medium 0.02853749186115581 https://leetcode.com/problems/unique-paths
257 204 Count Primes 31.5% Easy 0.02799343042200216 https://leetcode.com/problems/count-primes
258 709 To Lower Case 79.3% Easy 0.02780531308033682 https://leetcode.com/problems/to-lower-case
259 811 Subdomain Visit Count 69.9% Easy 0.02772180293027194 https://leetcode.com/problems/subdomain-visit-count
260 68 Text Justification 27.7% Hard 0.0276451606661453 https://leetcode.com/problems/text-justification
261 498 Diagonal Traverse 48.2% Medium 0.02756894104498661 https://leetcode.com/problems/diagonal-traverse
262 114 Flatten Binary Tree to Linked List 49.3% Medium 0.02730545069026746 https://leetcode.com/problems/flatten-binary-tree-to-linked-list
263 931 Minimum Falling Path Sum 62.5% Medium 0.02672169681715245 https://leetcode.com/problems/minimum-falling-path-sum
264 373 Find K Pairs with Smallest Sums 36.7% Medium 0.02626546261018635 https://leetcode.com/problems/find-k-pairs-with-smallest-sums
265 378 Kth Smallest Element in a Sorted Matrix 54.3% Medium 0.02599048981653746 https://leetcode.com/problems/kth-smallest-element-in-a-sorted-matrix
266 143 Reorder List 37.1% Medium 0.025870945598649286 https://leetcode.com/problems/reorder-list
267 961 N-Repeated Element in Size 2N Array 73.7% Easy 0.025609594204324387 https://leetcode.com/problems/n-repeated-element-in-size-2n-array
268 1038 Binary Search Tree to Greater Sum Tree 80.8% Medium 0.025446665661164262 https://leetcode.com/problems/binary-search-tree-to-greater-sum-tree
269 83 Remove Duplicates from Sorted List 45.4% Easy 0.025174394259350617 https://leetcode.com/problems/remove-duplicates-from-sorted-list
270 162 Find Peak Element 43.3% Medium 0.02516251642407408 https://leetcode.com/problems/find-peak-element
271 230 Kth Smallest Element in a BST 60.2% Medium 0.025107234408906165 https://leetcode.com/problems/kth-smallest-element-in-a-bst
272 171 Excel Sheet Column Number 55.9% Easy 0.025015200987536713 https://leetcode.com/problems/excel-sheet-column-number
273 220 Contains Duplicate III 20.9% Medium 0.024876904755404577 https://leetcode.com/problems/contains-duplicate-iii
274 138 Copy List with Random Pointer 36.4% Medium 0.02453734514188008 https://leetcode.com/problems/copy-list-with-random-pointer
275 310 Minimum Height Trees 32.3% Medium 0.02446605215440636 https://leetcode.com/problems/minimum-height-trees
276 804 Unique Morse Code Words 77.0% Easy 0.024332100659530644 https://leetcode.com/problems/unique-morse-code-words
277 151 Reverse Words in a String 21.9% Medium 0.024321004216273485 https://leetcode.com/problems/reverse-words-in-a-string
278 64 Minimum Path Sum 54.5% Medium 0.024287775531756203 https://leetcode.com/problems/minimum-path-sum
279 1315 Sum of Nodes with Even-Valued Grandparent 83.5% Medium 0.023981964686485415 https://leetcode.com/problems/sum-of-nodes-with-even-valued-grandparent
280 326 Power of Three 42.1% Easy 0.023341308632796296 https://leetcode.com/problems/power-of-three
281 211 Add and Search Word - Data structure design 38.1% Medium 0.02333525640896379 https://leetcode.com/problems/add-and-search-word-data-structure-design
282 286 Walls and Gates 54.5% Medium 0.02324334737232728 https://leetcode.com/problems/walls-and-gates
283 210 Course Schedule II 40.7% Medium 0.023133880315464483 https://leetcode.com/problems/course-schedule-ii
284 766 Toeplitz Matrix 65.1% Easy 0.02280600552903764 https://leetcode.com/problems/toeplitz-matrix
285 199 Binary Tree Right Side View 54.1% Medium 0.022539339846061532 https://leetcode.com/problems/binary-tree-right-side-view
286 72 Edit Distance 44.8% Hard 0.022400140173127806 https://leetcode.com/problems/edit-distance
287 105 Construct Binary Tree from Preorder and Inorder Traversal 48.8% Medium 0.022325470299025416 https://leetcode.com/problems/construct-binary-tree-from-preorder-and-inorder-traversal
288 190 Reverse Bits 39.8% Easy 0.022210041351742264 https://leetcode.com/problems/reverse-bits
289 231 Power of Two 43.7% Easy 0.021776810232970734 https://leetcode.com/problems/power-of-two
290 40 Combination Sum II 48.2% Medium 0.021424290044083395 https://leetcode.com/problems/combination-sum-ii
291 543 Diameter of Binary Tree 48.4% Easy 0.02105617995251665 https://leetcode.com/problems/diameter-of-binary-tree
292 74 Search a 2D Matrix 36.5% Medium 0.020896975877216107 https://leetcode.com/problems/search-a-2d-matrix
293 670 Maximum Swap 43.6% Medium 0.020844944430365928 https://leetcode.com/problems/maximum-swap
294 60 Permutation Sequence 38.4% Hard 0.020471543980187256 https://leetcode.com/problems/permutation-sequence
295 69 Sqrt(x) 33.9% Easy 0.020253856904497686 https://leetcode.com/problems/sqrtx
296 180 Consecutive Numbers 39.7% Medium 0.02021291655585931 https://leetcode.com/problems/consecutive-numbers
297 166 Fraction to Recurring Decimal 21.6% Medium 0.02015181543730795 https://leetcode.com/problems/fraction-to-recurring-decimal
298 525 Contiguous Array 42.8% Medium 0.01975372873623256 https://leetcode.com/problems/contiguous-array
299 63 Unique Paths II 34.6% Medium 0.01949801804099658 https://leetcode.com/problems/unique-paths-ii
300 669 Trim a Binary Search Tree 63.0% Easy 0.019139340210697423 https://leetcode.com/problems/trim-a-binary-search-tree
301 19 Remove Nth Node From End of List 35.2% Medium 0.019074355670058666 https://leetcode.com/problems/remove-nth-node-from-end-of-list
302 173 Binary Search Tree Iterator 56.6% Medium 0.01899993824490396 https://leetcode.com/problems/binary-search-tree-iterator
303 721 Accounts Merge 48.8% Medium 0.01888630262874805 https://leetcode.com/problems/accounts-merge
304 209 Minimum Size Subarray Sum 38.2% Medium 0.018832948333092125 https://leetcode.com/problems/minimum-size-subarray-sum
305 184 Department Highest Salary 36.7% Medium 0.018735911057469818 https://leetcode.com/problems/department-highest-salary
306 450 Delete Node in a BST 43.1% Medium 0.018536211907915243 https://leetcode.com/problems/delete-node-in-a-bst
307 98 Validate Binary Search Tree 27.8% Medium 0.01825801101705589 https://leetcode.com/problems/validate-binary-search-tree
308 347 Top K Frequent Elements 61.2% Medium 0.018049036874660983 https://leetcode.com/problems/top-k-frequent-elements
309 406 Queue Reconstruction by Height 66.9% Medium 0.01774669468133533 https://leetcode.com/problems/queue-reconstruction-by-height
310 383 Ransom Note 53.1% Easy 0.017621601349819518 https://leetcode.com/problems/ransom-note
311 876 Middle of the Linked List 68.4% Easy 0.01707497375257815 https://leetcode.com/problems/middle-of-the-linked-list
312 95 Unique Binary Search Trees II 40.6% Medium 0.016856699181010838 https://leetcode.com/problems/unique-binary-search-trees-ii
313 628 Maximum Product of Three Numbers 47.1% Easy 0.016529301951210565 https://leetcode.com/problems/maximum-product-of-three-numbers
314 188 Best Time to Buy and Sell Stock IV 28.0% Hard 0.01651565203072114 https://leetcode.com/problems/best-time-to-buy-and-sell-stock-iv
315 1021 Remove Outermost Parentheses 78.0% Easy 0.016434223613379935 https://leetcode.com/problems/remove-outermost-parentheses
316 165 Compare Version Numbers 27.4% Medium 0.01579187969789165 https://leetcode.com/problems/compare-version-numbers
317 938 Range Sum of BST 81.3% Easy 0.015707129205357877 https://leetcode.com/problems/range-sum-of-bst
318 1002 Find Common Characters 67.6% Easy 0.015273301861833809 https://leetcode.com/problems/find-common-characters
319 118 Pascal's Triangle 52.5% Easy 0.015123796918620345 https://leetcode.com/problems/pascals-triangle
320 67 Add Binary 45.2% Easy 0.014859727755020839 https://leetcode.com/problems/add-binary
321 142 Linked List Cycle II 37.3% Medium 0.014710955064667802 https://leetcode.com/problems/linked-list-cycle-ii
322 301 Remove Invalid Parentheses 43.3% Hard 0.01446679841775339 https://leetcode.com/problems/remove-invalid-parentheses
323 912 Sort an Array 63.9% Medium 0.01443026482902881 https://leetcode.com/problems/sort-an-array
324 107 Binary Tree Level Order Traversal II 53.5% Easy 0.014395642075089957 https://leetcode.com/problems/binary-tree-level-order-traversal-ii
325 371 Sum of Two Integers 50.7% Medium 0.014064929467403538 https://leetcode.com/problems/sum-of-two-integers
326 134 Gas Station 38.5% Medium 0.01352742981715631 https://leetcode.com/problems/gas-station
327 70 Climbing Stairs 47.8% Easy 0.013494975575004323 https://leetcode.com/problems/climbing-stairs
328 767 Reorganize String 48.7% Medium 0.01329806830463147 https://leetcode.com/problems/reorganize-string
329 219 Contains Duplicate II 37.7% Easy 0.01276748910345265 https://leetcode.com/problems/contains-duplicate-ii
330 695 Max Area of Island 62.7% Medium 0.012686500631003836 https://leetcode.com/problems/max-area-of-island
331 181 Employees Earning More Than Their Managers 56.9% Easy 0.012618463959211509 https://leetcode.com/problems/employees-earning-more-than-their-managers
332 226 Invert Binary Tree 65.0% Easy 0.01235091863400913 https://leetcode.com/problems/invert-binary-tree
333 112 Path Sum 41.2% Easy 0.012265076074932503 https://leetcode.com/problems/path-sum
334 9 Palindrome Number 48.4% Easy 0.01209661684713821 https://leetcode.com/problems/palindrome-number
335 123 Best Time to Buy and Sell Stock III 37.5% Hard 0.011261380272539033 https://leetcode.com/problems/best-time-to-buy-and-sell-stock-iii
336 430 Flatten a Multilevel Doubly Linked List 55.1% Medium 0.010548621020744619 https://leetcode.com/problems/flatten-a-multilevel-doubly-linked-list
337 92 Reverse Linked List II 38.8% Medium 0.010427623162259089 https://leetcode.com/problems/reverse-linked-list-ii
338 35 Search Insert Position 42.6% Easy 0.010425207359624364 https://leetcode.com/problems/search-insert-position
339 819 Most Common Word 44.8% Easy 0.010269666637456105 https://leetcode.com/problems/most-common-word
340 113 Path Sum II 46.7% Medium 0.009784813879998279 https://leetcode.com/problems/path-sum-ii
341 47 Permutations II 46.4% Medium 0.009673594178378379 https://leetcode.com/problems/permutations-ii
342 905 Sort Array By Parity 74.1% Easy 0.009603915354180344 https://leetcode.com/problems/sort-array-by-parity
343 96 Unique Binary Search Trees 52.9% Medium 0.009242209964820877 https://leetcode.com/problems/unique-binary-search-trees
344 208 Implement Trie (Prefix Tree) 49.4% Medium 0.009105457856626612 https://leetcode.com/problems/implement-trie-prefix-tree
345 416 Partition Equal Subset Sum 43.7% Medium 0.008686265255960345 https://leetcode.com/problems/partition-equal-subset-sum
346 700 Search in a Binary Search Tree 73.1% Easy 0.008512500860171227 https://leetcode.com/problems/search-in-a-binary-search-tree
347 937 Reorder Data in Log Files 54.3% Easy 0.008415787099648575 https://leetcode.com/problems/reorder-data-in-log-files
348 763 Partition Labels 76.1% Medium 0.008385793376274025 https://leetcode.com/problems/partition-labels
349 26 Remove Duplicates from Sorted Array 45.1% Easy 0.007782518973063169 https://leetcode.com/problems/remove-duplicates-from-sorted-array
350 240 Search a 2D Matrix II 43.2% Medium 0.0075829747244553335 https://leetcode.com/problems/search-a-2d-matrix-ii
351 66 Plus One 43.0% Easy 0.007324847595025828 https://leetcode.com/problems/plus-one
352 110 Balanced Binary Tree 43.5% Easy 0.007027435807456887 https://leetcode.com/problems/balanced-binary-tree
353 103 Binary Tree Zigzag Level Order Traversal 48.3% Medium 0.006816368572598042 https://leetcode.com/problems/binary-tree-zigzag-level-order-traversal
354 111 Minimum Depth of Binary Tree 37.4% Easy 0.0066203485760693214 https://leetcode.com/problems/minimum-depth-of-binary-tree
355 100 Same Tree 53.4% Easy 0.005620163024677507 https://leetcode.com/problems/same-tree
356 50 Pow(x n) 30.3% Medium 0.0055950070772402055 https://leetcode.com/problems/powx-n
357 621 Task Scheduler 50.1% Medium 0.005261323957171611 https://leetcode.com/problems/task-scheduler
358 237 Delete Node in a Linked List 63.8% Easy 0.005144705881237697 https://leetcode.com/problems/delete-node-in-a-linked-list
359 258 Add Digits 57.6% Easy 0.004648528591812259 https://leetcode.com/problems/add-digits
360 217 Contains Duplicate 56.0% Easy 0.0037979536727587773 https://leetcode.com/problems/contains-duplicate
361 203 Remove Linked List Elements 38.6% Easy 0.0036496390875494257 https://leetcode.com/problems/remove-linked-list-elements
362 94 Binary Tree Inorder Traversal 63.3% Medium 0.0033551449021403577 https://leetcode.com/problems/binary-tree-inorder-traversal
363 309 Best Time to Buy and Sell Stock with Cooldown 47.4% Medium 0.0028498166907604426 https://leetcode.com/problems/best-time-to-buy-and-sell-stock-with-cooldown
364 260 Single Number III 64.3% Medium 0.0020288097849578786 https://leetcode.com/problems/single-number-iii