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953,Verifying an Alien Dictionary,54.1%,Easy,2.989885912665777, https://leetcode.com/problems/verifying-an-alien-dictionary
1249,Minimum Remove to Make Valid Parentheses,62.5%,Medium,2.789692716779026, https://leetcode.com/problems/minimum-remove-to-make-valid-parentheses
560,Subarray Sum Equals K,43.9%,Medium,2.589499520892275, https://leetcode.com/problems/subarray-sum-equals-k
680,Valid Palindrome II,36.6%,Easy,2.4309487236103293, https://leetcode.com/problems/valid-palindrome-ii
973,K Closest Points to Origin,63.8%,Medium,2.4168563957837113, https://leetcode.com/problems/k-closest-points-to-origin
238,Product of Array Except Self,60.1%,Medium,2.3907554290635766, https://leetcode.com/problems/product-of-array-except-self
273,Integer to English Words,27.1%,Hard,2.1905622331768257, https://leetcode.com/problems/integer-to-english-words
269,Alien Dictionary,33.3%,Hard,1.9903690372900749, https://leetcode.com/problems/alien-dictionary
415,Add Strings,47.5%,Easy,1.9412871417683926, https://leetcode.com/problems/add-strings
1428,Leftmost Column with at Least a One,46.8%,Medium,1.7410939458816417, https://leetcode.com/problems/leftmost-column-with-at-least-a-one
158,Read N Characters Given Read4 II - Call multiple times,33.8%,Hard,1.7021507666261801, https://leetcode.com/problems/read-n-characters-given-read4-ii-call-multiple-times
301,Remove Invalid Parentheses,43.3%,Hard,1.6508280515405795, https://leetcode.com/problems/remove-invalid-parentheses
199,Binary Tree Right Side View,54.1%,Medium,1.6398580822570061, https://leetcode.com/problems/binary-tree-right-side-view
211,Add and Search Word - Data structure design,38.1%,Medium,1.5661206772732004, https://leetcode.com/problems/add-and-search-word-data-structure-design
438,Find All Anagrams in a String,43.3%,Medium,1.525736950713966, https://leetcode.com/problems/find-all-anagrams-in-a-string
297,Serialize and Deserialize Binary Tree,47.5%,Hard,1.45465966830531, https://leetcode.com/problems/serialize-and-deserialize-binary-tree
278,First Bad Version,35.7%,Easy,1.414379824999279, https://leetcode.com/problems/first-bad-version
938,Range Sum of BST,81.3%,Easy,1.3387896500848302, https://leetcode.com/problems/range-sum-of-bst
215,Kth Largest Element in an Array,55.4%,Medium,1.3206473731391246, https://leetcode.com/problems/kth-largest-element-in-an-array
124,Binary Tree Maximum Path Sum,34.3%,Hard,1.3042127575609332, https://leetcode.com/problems/binary-tree-maximum-path-sum
23,Merge k Sorted Lists,40.2%,Hard,1.2054838918356545, https://leetcode.com/problems/merge-k-sorted-lists
523,Continuous Subarray Sum,24.6%,Medium,1.2029321441561993, https://leetcode.com/problems/continuous-subarray-sum
311,Sparse Matrix Multiplication,61.9%,Medium,1.1864036360584072, https://leetcode.com/problems/sparse-matrix-multiplication
398,Random Pick Index,56.0%,Medium,1.1731453405306764, https://leetcode.com/problems/random-pick-index
173,Binary Search Tree Iterator,56.6%,Medium,1.1576476302611085, https://leetcode.com/problems/binary-search-tree-iterator
67,Add Binary,45.2%,Easy,1.1492351430881342, https://leetcode.com/problems/add-binary
270,Closest Binary Search Tree Value,48.5%,Easy,1.128109605935724, https://leetcode.com/problems/closest-binary-search-tree-value
636,Exclusive Time of Functions,51.9%,Medium,1.070608304685468, https://leetcode.com/problems/exclusive-time-of-functions
282,Expression Add Operators,35.5%,Hard,1.0455990970504063, https://leetcode.com/problems/expression-add-operators
340,Longest Substring with At Most K Distinct Characters,44.1%,Hard,1.0267418846400203, https://leetcode.com/problems/longest-substring-with-at-most-k-distinct-characters
125,Valid Palindrome,36.7%,Easy,1.0148317568156204, https://leetcode.com/problems/valid-palindrome
986,Interval List Intersections,67.3%,Medium,1.0057274214846563, https://leetcode.com/problems/interval-list-intersections
689,Maximum Sum of 3 Non-Overlapping Subarrays,46.3%,Hard,0.9947846759711312, https://leetcode.com/problems/maximum-sum-of-3-non-overlapping-subarrays
88,Merge Sorted Array,39.4%,Easy,0.9801695539990253, https://leetcode.com/problems/merge-sorted-array
543,Diameter of Binary Tree,48.4%,Easy,0.9666819038179104, https://leetcode.com/problems/diameter-of-binary-tree
249,Group Shifted Strings,55.1%,Medium,0.945666077174907, https://leetcode.com/problems/group-shifted-strings
670,Maximum Swap,43.6%,Medium,0.9249941895303234, https://leetcode.com/problems/maximum-swap
65,Valid Number,15.3%,Hard,0.908165324430238, https://leetcode.com/problems/valid-number
339,Nested List Weight Sum,74.0%,Easy,0.9052609305482283, https://leetcode.com/problems/nested-list-weight-sum
987,Vertical Order Traversal of a Binary Tree,36.6%,Medium,0.8804156410839885, https://leetcode.com/problems/vertical-order-traversal-of-a-binary-tree
56,Merge Intervals,39.3%,Medium,0.8427900387945232, https://leetcode.com/problems/merge-intervals
896,Monotonic Array,57.9%,Easy,0.8393770268957597, https://leetcode.com/problems/monotonic-array
1026,Maximum Difference Between Node and Ancestor,66.0%,Medium,0.7618015852980233, https://leetcode.com/problems/maximum-difference-between-node-and-ancestor
31,Next Permutation,32.6%,Medium,0.7395169896605716, https://leetcode.com/problems/next-permutation
528,Random Pick with Weight,43.9%,Medium,0.7321595446631552, https://leetcode.com/problems/random-pick-with-weight
721,Accounts Merge,48.8%,Medium,0.7287314592848576, https://leetcode.com/problems/accounts-merge
34,Find First and Last Position of Element in Sorted Array,36.2%,Medium,0.7044168429677726, https://leetcode.com/problems/find-first-and-last-position-of-element-in-sorted-array
785,Is Graph Bipartite?,47.5%,Medium,0.7029856295602332, https://leetcode.com/problems/is-graph-bipartite
1060,Missing Element in Sorted Array,54.5%,Medium,0.6876375247489758, https://leetcode.com/problems/missing-element-in-sorted-array
133,Clone Graph,34.8%,Medium,0.6874118104752011, https://leetcode.com/problems/clone-graph
42,Trapping Rain Water,48.9%,Hard,0.683618605098175, https://leetcode.com/problems/trapping-rain-water
29,Divide Two Integers,16.4%,Medium,0.6823861236036471, https://leetcode.com/problems/divide-two-integers
76,Minimum Window Substring,34.6%,Hard,0.6814364325080815, https://leetcode.com/problems/minimum-window-substring
236,Lowest Common Ancestor of a Binary Tree,45.7%,Medium,0.6555317936561839, https://leetcode.com/problems/lowest-common-ancestor-of-a-binary-tree
616,Add Bold Tag in String,43.1%,Medium,0.6372987390704172, https://leetcode.com/problems/add-bold-tag-in-string
314,Binary Tree Vertical Order Traversal,45.3%,Medium,0.6368436274564796, https://leetcode.com/problems/binary-tree-vertical-order-traversal
426,Convert Binary Search Tree to Sorted Doubly Linked List,59.1%,Medium,0.6325225587435105, https://leetcode.com/problems/convert-binary-search-tree-to-sorted-doubly-linked-list
498,Diagonal Traverse,48.2%,Medium,0.6127841327406813, https://leetcode.com/problems/diagonal-traverse
766,Toeplitz Matrix,65.1%,Easy,0.6045617437458672, https://leetcode.com/problems/toeplitz-matrix
958,Check Completeness of a Binary Tree,52.1%,Medium,0.5833765144245663, https://leetcode.com/problems/check-completeness-of-a-binary-tree
1197,Minimum Knight Moves,36.1%,Medium,0.5616591289700842, https://leetcode.com/problems/minimum-knight-moves
419,Battleships in a Board,70.0%,Medium,0.5613354788149493, https://leetcode.com/problems/battleships-in-a-board
767,Reorganize String,48.7%,Medium,0.5613354788149493, https://leetcode.com/problems/reorganize-string
380,Insert Delete GetRandom O(1),47.5%,Medium,0.5382766101249649, https://leetcode.com/problems/insert-delete-getrandom-o1
227,Basic Calculator II,36.9%,Medium,0.5316918663537997, https://leetcode.com/problems/basic-calculator-ii
71,Simplify Path,32.6%,Medium,0.5262793676678309, https://leetcode.com/problems/simplify-path
839,Similar String Groups,38.6%,Hard,0.5248118657407306, https://leetcode.com/problems/similar-string-groups
1123,Lowest Common Ancestor of Deepest Leaves,66.8%,Medium,0.4992480704235479, https://leetcode.com/problems/lowest-common-ancestor-of-deepest-leaves
432,All O`one Data Structure,32.4%,Hard,0.49573913073261056, https://leetcode.com/problems/all-oone-data-structure
317,Shortest Distance from All Buildings,41.4%,Hard,0.4817811959810462, https://leetcode.com/problems/shortest-distance-from-all-buildings
109,Convert Sorted List to Binary Search Tree,47.7%,Medium,0.47905346476565347, https://leetcode.com/problems/convert-sorted-list-to-binary-search-tree
139,Word Break,40.1%,Medium,0.4760457233294034, https://leetcode.com/problems/word-break
658,Find K Closest Elements,40.9%,Medium,0.4718862780603521, https://leetcode.com/problems/find-k-closest-elements
138,Copy List with Random Pointer,36.4%,Medium,0.44498832447784914, https://leetcode.com/problems/copy-list-with-random-pointer
825,Friends Of Appropriate Ages,42.7%,Medium,0.43427293431510494, https://leetcode.com/problems/friends-of-appropriate-ages
349,Intersection of Two Arrays,62.5%,Easy,0.4224803991237512, https://leetcode.com/problems/intersection-of-two-arrays
146,LRU Cache,33.2%,Medium,0.4110212101491863, https://leetcode.com/problems/lru-cache
157,Read N Characters Given Read4,34.2%,Easy,0.39066859991139324, https://leetcode.com/problems/read-n-characters-given-read4
708,Insert into a Sorted Circular Linked List,31.6%,Medium,0.3886132680726728, https://leetcode.com/problems/insert-into-a-sorted-circular-linked-list
463,Island Perimeter,65.7%,Easy,0.3815418531421575, https://leetcode.com/problems/island-perimeter
934,Shortest Bridge,48.2%,Medium,0.3715318913226816, https://leetcode.com/problems/shortest-bridge
921,Minimum Add to Make Parentheses Valid,73.7%,Medium,0.36363496556057356, https://leetcode.com/problems/minimum-add-to-make-parentheses-valid
33,Search in Rotated Sorted Array,34.5%,Medium,0.35617336232817126, https://leetcode.com/problems/search-in-rotated-sorted-array
400,Nth Digit,31.7%,Medium,0.33647223662121295, https://leetcode.com/problems/nth-digit
540,Single Element in a Sorted Array,57.9%,Medium,0.33133226559120954, https://leetcode.com/problems/single-element-in-a-sorted-array
333,Largest BST Subtree,35.8%,Medium,0.32931497055013925, https://leetcode.com/problems/largest-bst-subtree
827,Making A Large Island,45.7%,Hard,0.32879599515977564, https://leetcode.com/problems/making-a-large-island
43,Multiply Strings,33.9%,Medium,0.3279710815981375, https://leetcode.com/problems/multiply-strings
286,Walls and Gates,54.5%,Medium,0.319361875095049, https://leetcode.com/problems/walls-and-gates
1269,Number of Ways to Stay in the Same Place After Some Steps,43.2%,Hard,0.3144566709952356, https://leetcode.com/problems/number-of-ways-to-stay-in-the-same-place-after-some-steps
678,Valid Parenthesis String,31.0%,Medium,0.31306090671867376, https://leetcode.com/problems/valid-parenthesis-string
1233,Remove Sub-Folders from the Filesystem,59.5%,Medium,0.31269697112755473, https://leetcode.com/problems/remove-sub-folders-from-the-filesystem
1242,Web Crawler Multithreaded,45.9%,Medium,0.30961714931803663, https://leetcode.com/problems/web-crawler-multithreaded
536,Construct Binary Tree from String,48.3%,Medium,0.303629619668917, https://leetcode.com/problems/construct-binary-tree-from-string
378,Kth Smallest Element in a Sorted Matrix,54.3%,Medium,0.303069224638031, https://leetcode.com/problems/kth-smallest-element-in-a-sorted-matrix
10,Regular Expression Matching,26.8%,Hard,0.3026257535192428, https://leetcode.com/problems/regular-expression-matching
939,Minimum Area Rectangle,51.8%,Medium,0.29924289485285693, https://leetcode.com/problems/minimum-area-rectangle
936,Stamping The Sequence,42.8%,Hard,0.2972515234679316, https://leetcode.com/problems/stamping-the-sequence
253,Meeting Rooms II,45.7%,Medium,0.29470460870072, https://leetcode.com/problems/meeting-rooms-ii
329,Longest Increasing Path in a Matrix,43.4%,Hard,0.29062882263712253, https://leetcode.com/problems/longest-increasing-path-in-a-matrix
1424,Diagonal Traverse II,42.4%,Medium,0.28406186115878557, https://leetcode.com/problems/diagonal-traverse-ii
93,Restore IP Addresses,35.6%,Medium,0.27714773876682147, https://leetcode.com/problems/restore-ip-addresses
695,Max Area of Island,62.7%,Medium,0.2770125235595406, https://leetcode.com/problems/max-area-of-island
548,Split Array with Equal Sum,46.4%,Medium,0.2761315220005779, https://leetcode.com/problems/split-array-with-equal-sum
1216,Valid Palindrome III,47.8%,Hard,0.2752815592533259, https://leetcode.com/problems/valid-palindrome-iii
50,Pow(x, n),30.3%,Medium,0.2584425901237734, https://leetcode.com/problems/powx-n
304,Range Sum Query 2D - Immutable,38.6%,Medium,0.24975649223064128, https://leetcode.com/problems/range-sum-query-2d-immutable
621,Task Scheduler,50.1%,Medium,0.24973714088765747, https://leetcode.com/problems/task-scheduler
163,Missing Ranges,24.3%,Medium,0.24869662573882725, https://leetcode.com/problems/missing-ranges
494,Target Sum,46.3%,Medium,0.2453642433771354, https://leetcode.com/problems/target-sum
8,String to Integer (atoi),15.4%,Medium,0.24257917433914686, https://leetcode.com/problems/string-to-integer-atoi
863,All Nodes Distance K in Binary Tree,55.4%,Medium,0.24186418612910326, https://leetcode.com/problems/all-nodes-distance-k-in-binary-tree
452,Minimum Number of Arrows to Burst Balloons,49.6%,Medium,0.23843368813228313, https://leetcode.com/problems/minimum-number-of-arrows-to-burst-balloons
381,Insert Delete GetRandom O(1) - Duplicates allowed,34.1%,Hard,0.2349381278070467, https://leetcode.com/problems/insert-delete-getrandom-o1-duplicates-allowed
844,Backspace String Compare,46.4%,Easy,0.2349381278070467, https://leetcode.com/problems/backspace-string-compare
855,Exam Room,43.1%,Medium,0.23361485118150516, https://leetcode.com/problems/exam-room
92,Reverse Linked List II,38.8%,Medium,0.23274095442047985, https://leetcode.com/problems/reverse-linked-list-ii
772,Basic Calculator III,41.3%,Hard,0.2322522675124501, https://leetcode.com/problems/basic-calculator-iii
200,Number of Islands,46.8%,Medium,0.23204607197311616, https://leetcode.com/problems/number-of-islands
22,Generate Parentheses,62.7%,Medium,0.21981634397194805, https://leetcode.com/problems/generate-parentheses
408,Valid Word Abbreviation,30.6%,Easy,0.21878624594525403, https://leetcode.com/problems/valid-word-abbreviation
332,Reconstruct Itinerary,36.7%,Medium,0.20016691711396506, https://leetcode.com/problems/reconstruct-itinerary
348,Design Tic-Tac-Toe,54.3%,Medium,0.19933290262049122, https://leetcode.com/problems/design-tic-tac-toe
140,Word Break II,32.6%,Hard,0.19849973124449666, https://leetcode.com/problems/word-break-ii
865,Smallest Subtree with all the Deepest Nodes,60.8%,Medium,0.19796045067840945, https://leetcode.com/problems/smallest-subtree-with-all-the-deepest-nodes
364,Nested List Weight Sum II,62.8%,Medium,0.1959851135234185, https://leetcode.com/problems/nested-list-weight-sum-ii
480,Sliding Window Median,37.2%,Hard,0.19425690734322737, https://leetcode.com/problems/sliding-window-median
121,Best Time to Buy and Sell Stock,50.5%,Easy,0.19278242868174433, https://leetcode.com/problems/best-time-to-buy-and-sell-stock
791,Custom Sort String,65.7%,Medium,0.1922835495227023, https://leetcode.com/problems/custom-sort-string
246,Strobogrammatic Number,45.0%,Easy,0.187957697907993, https://leetcode.com/problems/strobogrammatic-number
323,Number of Connected Components in an Undirected Graph,56.0%,Medium,0.18178978331691914, https://leetcode.com/problems/number-of-connected-components-in-an-undirected-graph
759,Employee Free Time,66.3%,Hard,0.1816986978513639, https://leetcode.com/problems/employee-free-time
1245,Tree Diameter,60.1%,Medium,0.17869178874337593, https://leetcode.com/problems/tree-diameter
162,Find Peak Element,43.3%,Medium,0.17622454513525765, https://leetcode.com/problems/find-peak-element
224,Basic Calculator,36.8%,Hard,0.17452286430813568, https://leetcode.com/problems/basic-calculator
1213,Intersection of Three Sorted Arrays,78.9%,Easy,0.1735948056557174, https://leetcode.com/problems/intersection-of-three-sorted-arrays
277,Find the Celebrity,41.8%,Medium,0.17260355263083088, https://leetcode.com/problems/find-the-celebrity
143,Reorder List,37.1%,Medium,0.1708995553293303, https://leetcode.com/problems/reorder-list
609,Find Duplicate File in System,59.5%,Medium,0.16971838464062922, https://leetcode.com/problems/find-duplicate-file-in-system
963,Minimum Area Rectangle II,50.9%,Medium,0.16635770580494058, https://leetcode.com/problems/minimum-area-rectangle-ii
15,3Sum,26.8%,Medium,0.1640862201935116, https://leetcode.com/problems/3sum
19,Remove Nth Node From End of List,35.2%,Medium,0.15983469543773265, https://leetcode.com/problems/remove-nth-node-from-end-of-list
647,Palindromic Substrings,60.6%,Medium,0.154673282399905, https://leetcode.com/problems/palindromic-substrings
1094,Car Pooling,56.7%,Medium,0.15180601286800416, https://leetcode.com/problems/car-pooling
126,Word Ladder II,22.1%,Hard,0.15135837956172798, https://leetcode.com/problems/word-ladder-ii
1032,Stream of Characters,48.3%,Hard,0.14378789279171172, https://leetcode.com/problems/stream-of-characters
91,Decode Ways,24.7%,Medium,0.13946258598914826, https://leetcode.com/problems/decode-ways
1209,Remove All Adjacent Duplicates in String II,56.9%,Medium,0.13712574822724946, https://leetcode.com/problems/remove-all-adjacent-duplicates-in-string-ii
622,Design Circular Queue,43.8%,Medium,0.1327502812764459, https://leetcode.com/problems/design-circular-queue
977,Squares of a Sorted Array,72.1%,Easy,0.13133600206108695, https://leetcode.com/problems/squares-of-a-sorted-array
117,Populating Next Right Pointers in Each Node II,39.1%,Medium,0.13130956766464877, https://leetcode.com/problems/populating-next-right-pointers-in-each-node-ii
1,Two Sum,45.6%,Easy,0.1299229690633312, https://leetcode.com/problems/two-sum
347,Top K Frequent Elements,61.2%,Medium,0.12591062025304192, https://leetcode.com/problems/top-k-frequent-elements
78,Subsets,62.0%,Medium,0.12486971572185374, https://leetcode.com/problems/subsets
257,Binary Tree Paths,51.5%,Easy,0.12113556412256954, https://leetcode.com/problems/binary-tree-paths
1439,Find the Kth Smallest Sum of a Matrix With Sorted Rows,59.5%,Hard,0.11918851726511835, https://leetcode.com/problems/find-the-kth-smallest-sum-of-a-matrix-with-sorted-rows
284,Peeking Iterator,45.7%,Medium,0.11901099827011974, https://leetcode.com/problems/peeking-iterator
341,Flatten Nested List Iterator,52.9%,Medium,0.11879160861126825, https://leetcode.com/problems/flatten-nested-list-iterator
3,Longest Substring Without Repeating Characters,30.4%,Medium,0.11876423093459514, https://leetcode.com/problems/longest-substring-without-repeating-characters
207,Course Schedule,43.1%,Medium,0.11725761496207857, https://leetcode.com/problems/course-schedule
1275,Find Winner on a Tic Tac Toe Game,52.8%,Easy,0.11536465479210183, https://leetcode.com/problems/find-winner-on-a-tic-tac-toe-game
127,Word Ladder,29.6%,Medium,0.11461293205885352, https://leetcode.com/problems/word-ladder
57,Insert Interval,33.5%,Hard,0.11230236057981403, https://leetcode.com/problems/insert-interval
40,Combination Sum II,48.2%,Medium,0.11145356111123644, https://leetcode.com/problems/combination-sum-ii
742,Closest Leaf in a Binary Tree,43.6%,Medium,0.11060987154397002, https://leetcode.com/problems/closest-leaf-in-a-binary-tree
39,Combination Sum,56.1%,Medium,0.10982174474537089, https://leetcode.com/problems/combination-sum
547,Friend Circles,58.6%,Medium,0.10502210097355241, https://leetcode.com/problems/friend-circles
114,Flatten Binary Tree to Linked List,49.3%,Medium,0.1050144350175837, https://leetcode.com/problems/flatten-binary-tree-to-linked-list
773,Sliding Puzzle,59.3%,Hard,0.10294796925244239, https://leetcode.com/problems/sliding-puzzle
1411,Number of Ways to Paint N × 3 Grid,61.1%,Hard,0.10135249426028749, https://leetcode.com/problems/number-of-ways-to-paint-n-3-grid
98,Validate Binary Search Tree,27.8%,Medium,0.1008693132143216, https://leetcode.com/problems/validate-binary-search-tree
529,Minesweeper,59.1%,Medium,0.09695424100489167, https://leetcode.com/problems/minesweeper
280,Wiggle Sort,63.8%,Medium,0.09561417737468547, https://leetcode.com/problems/wiggle-sort
983,Minimum Cost For Tickets,60.5%,Medium,0.09525339549949145, https://leetcode.com/problems/minimum-cost-for-tickets
160,Intersection of Two Linked Lists,40.6%,Easy,0.09485223529696123, https://leetcode.com/problems/intersection-of-two-linked-lists
490,The Maze,51.4%,Medium,0.09401490736696706, https://leetcode.com/problems/the-maze
1062,Longest Repeating Substring,57.2%,Medium,0.09201889872025212, https://leetcode.com/problems/longest-repeating-substring
1132,Reported Posts II,34.4%,Medium,0.0903548750399561, https://leetcode.com/problems/reported-posts-ii
272,Closest Binary Search Tree Value II,50.5%,Hard,0.08994823666293948, https://leetcode.com/problems/closest-binary-search-tree-value-ii
358,Rearrange String k Distance Apart,34.9%,Hard,0.08894748601649616, https://leetcode.com/problems/rearrange-string-k-distance-apart
995,Minimum Number of K Consecutive Bit Flips,46.8%,Hard,0.08894748601649616, https://leetcode.com/problems/minimum-number-of-k-consecutive-bit-flips
692,Top K Frequent Words,51.8%,Medium,0.08839354721658145, https://leetcode.com/problems/top-k-frequent-words
25,Reverse Nodes in k-Group,42.1%,Hard,0.08835766048944313, https://leetcode.com/problems/reverse-nodes-in-k-group
549,Binary Tree Longest Consecutive Sequence II,47.0%,Medium,0.08816278759467164, https://leetcode.com/problems/binary-tree-longest-consecutive-sequence-ii
116,Populating Next Right Pointers in Each Node,45.2%,Medium,0.08636683942300452, https://leetcode.com/problems/populating-next-right-pointers-in-each-node
345,Reverse Vowels of a String,44.2%,Easy,0.08413974844494757, https://leetcode.com/problems/reverse-vowels-of-a-string
443,String Compression,41.3%,Easy,0.08391368024915737, https://leetcode.com/problems/string-compression
283,Move Zeroes,57.8%,Easy,0.08379761717276897, https://leetcode.com/problems/move-zeroes
724,Find Pivot Index,44.0%,Easy,0.08357684789821086, https://leetcode.com/problems/find-pivot-index
73,Set Matrix Zeroes,43.1%,Medium,0.08271965106891821, https://leetcode.com/problems/set-matrix-zeroes
350,Intersection of Two Arrays II,51.4%,Easy,0.08027374155116185, https://leetcode.com/problems/intersection-of-two-arrays-ii
875,Koko Eating Bananas,52.1%,Medium,0.07919704166119315, https://leetcode.com/problems/koko-eating-bananas
1047,Remove All Adjacent Duplicates In String,68.6%,Easy,0.0789551324793932, https://leetcode.com/problems/remove-all-adjacent-duplicates-in-string
166,Fraction to Recurring Decimal,21.6%,Medium,0.0782795570551556, https://leetcode.com/problems/fraction-to-recurring-decimal
1254,Number of Closed Islands,60.5%,Medium,0.07796154146971186, https://leetcode.com/problems/number-of-closed-islands
54,Spiral Matrix,34.1%,Medium,0.07792846120043545, https://leetcode.com/problems/spiral-matrix
129,Sum Root to Leaf Numbers,49.1%,Medium,0.07707974254287937, https://leetcode.com/problems/sum-root-to-leaf-numbers
137,Single Number II,52.4%,Medium,0.07583984694698977, https://leetcode.com/problems/single-number-ii
515,Find Largest Value in Each Tree Row,61.1%,Medium,0.07428007438287054, https://leetcode.com/problems/find-largest-value-in-each-tree-row
503,Next Greater Element II,56.5%,Medium,0.07339377143296942, https://leetcode.com/problems/next-greater-element-ii
1004,Max Consecutive Ones III,59.1%,Medium,0.07220094736995063, https://leetcode.com/problems/max-consecutive-ones-iii
1057,Campus Bikes,57.7%,Medium,0.07107786641655695, https://leetcode.com/problems/campus-bikes
676,Implement Magic Dictionary,54.5%,Medium,0.06995858860691037, https://leetcode.com/problems/implement-magic-dictionary
1091,Shortest Path in Binary Matrix,38.2%,Medium,0.06984995317644427, https://leetcode.com/problems/shortest-path-in-binary-matrix
136,Single Number,65.5%,Easy,0.0693807551554477, https://leetcode.com/problems/single-number
723,Candy Crush,69.2%,Medium,0.06828590786613152, https://leetcode.com/problems/candy-crush
328,Odd Even Linked List,55.7%,Medium,0.06677800280143044, https://leetcode.com/problems/odd-even-linked-list
240,Search a 2D Matrix II,43.2%,Medium,0.06626158386149206, https://leetcode.com/problems/search-a-2d-matrix-ii
16,3Sum Closest,46.0%,Medium,0.065777130514714, https://leetcode.com/problems/3sum-closest
53,Maximum Subarray,46.5%,Easy,0.06356179958832935, https://leetcode.com/problems/maximum-subarray
428,Serialize and Deserialize N-ary Tree,59.4%,Hard,0.06136894637629212, https://leetcode.com/problems/serialize-and-deserialize-n-ary-tree
491,Increasing Subsequences,46.1%,Medium,0.058581901624802396, https://leetcode.com/problems/increasing-subsequences
2,Add Two Numbers,33.9%,Medium,0.04985995397332526, https://leetcode.com/problems/add-two-numbers
242,Valid Anagram,56.9%,Easy,0.04973624974928908, https://leetcode.com/problems/valid-anagram
388,Longest Absolute File Path,41.8%,Medium,0.04849434993861047, https://leetcode.com/problems/longest-absolute-file-path
405,Convert a Number to Hexadecimal,43.9%,Easy,0.0483770263821056, https://leetcode.com/problems/convert-a-number-to-hexadecimal
247,Strobogrammatic Number II,47.6%,Medium,0.04757139497530258, https://leetcode.com/problems/strobogrammatic-number-ii
698,Partition to K Equal Sum Subsets,45.0%,Medium,0.04685917114094188, https://leetcode.com/problems/partition-to-k-equal-sum-subsets
442,Find All Duplicates in an Array,67.8%,Medium,0.04590593720045213, https://leetcode.com/problems/find-all-duplicates-in-an-array
49,Group Anagrams,56.9%,Medium,0.045631752563977224, https://leetcode.com/problems/group-anagrams
20,Valid Parentheses,39.0%,Easy,0.045585204865984434, https://leetcode.com/problems/valid-parentheses
5,Longest Palindromic Substring,29.5%,Medium,0.04517328747428837, https://leetcode.com/problems/longest-palindromic-substring
935,Knight Dialer,45.2%,Medium,0.04445176257083384, https://leetcode.com/problems/knight-dialer
55,Jump Game,34.6%,Medium,0.04432039968066135, https://leetcode.com/problems/jump-game
102,Binary Tree Level Order Traversal,54.6%,Medium,0.04369064305418892, https://leetcode.com/problems/binary-tree-level-order-traversal
1498,Number of Subsequences That Satisfy the Given Sum Condition,36.7%,Medium,0.04334372921647208, https://leetcode.com/problems/number-of-subsequences-that-satisfy-the-given-sum-condition
435,Non-overlapping Intervals,42.9%,Medium,0.04325518123147988, https://leetcode.com/problems/non-overlapping-intervals
399,Evaluate Division,51.6%,Medium,0.043089480538103624, https://leetcode.com/problems/evaluate-division
716,Max Stack,42.6%,Easy,0.042695919196489414, https://leetcode.com/problems/max-stack
669,Trim a Binary Search Tree,63.0%,Easy,0.04255961441879593, https://leetcode.com/problems/trim-a-binary-search-tree
674,Longest Continuous Increasing Subsequence,45.9%,Easy,0.04225980928988265, https://leetcode.com/problems/longest-continuous-increasing-subsequence
266,Palindrome Permutation,61.9%,Easy,0.04158603377810283, https://leetcode.com/problems/palindrome-permutation
62,Unique Paths,54.1%,Medium,0.04084052144450833, https://leetcode.com/problems/unique-paths
918,Maximum Sum Circular Subarray,33.7%,Medium,0.04045040846284272, https://leetcode.com/problems/maximum-sum-circular-subarray
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
686,Repeated String Match,32.3%,Easy,0.03984590854719967, https://leetcode.com/problems/repeated-string-match
406,Queue Reconstruction by Height,66.9%,Medium,0.03949613834265583, https://leetcode.com/problems/queue-reconstruction-by-height
230,Kth Smallest Element in a BST,60.2%,Medium,0.03895787134280517, https://leetcode.com/problems/kth-smallest-element-in-a-bst
168,Excel Sheet Column Title,31.1%,Easy,0.03861483612777958, https://leetcode.com/problems/excel-sheet-column-title
74,Search a 2D Matrix,36.5%,Medium,0.03685354875882915, https://leetcode.com/problems/search-a-2d-matrix
887,Super Egg Drop,27.1%,Hard,0.03660060864484636, https://leetcode.com/problems/super-egg-drop
884,Uncommon Words from Two Sentences,63.3%,Easy,0.036301626676214796, https://leetcode.com/problems/uncommon-words-from-two-sentences
334,Increasing Triplet Subsequence,40.0%,Medium,0.03577488021091517, https://leetcode.com/problems/increasing-triplet-subsequence
295,Find Median from Data Stream,44.3%,Hard,0.035519827248535335, https://leetcode.com/problems/find-median-from-data-stream
416,Partition Equal Subset Sum,43.7%,Medium,0.034301326353463016, https://leetcode.com/problems/partition-equal-subset-sum
214,Shortest Palindrome,29.8%,Hard,0.03419136474827932, https://leetcode.com/problems/shortest-palindrome
886,Possible Bipartition,44.2%,Medium,0.034103901828857086, https://leetcode.com/problems/possible-bipartition
1360,Number of Days Between Two Dates,48.8%,Easy,0.03401688527825427, https://leetcode.com/problems/number-of-days-between-two-dates
567,Permutation in String,44.4%,Medium,0.033324075731591886, https://leetcode.com/problems/permutation-in-string
1287,Element Appearing More Than 25% In Sorted Array,60.2%,Easy,0.033033556829153404, https://leetcode.com/problems/element-appearing-more-than-25-in-sorted-array
694,Number of Distinct Islands,56.0%,Medium,0.03278982282299087, https://leetcode.com/problems/number-of-distinct-islands
824,Goat Latin,63.4%,Easy,0.0317991816929387, https://leetcode.com/problems/goat-latin
44,Wildcard Matching,24.7%,Hard,0.030573033362282363, https://leetcode.com/problems/wildcard-matching
1027,Longest Arithmetic Sequence,53.4%,Medium,0.03030534949532895, https://leetcode.com/problems/longest-arithmetic-sequence
191,Number of 1 Bits,49.8%,Easy,0.029560622742018188, https://leetcode.com/problems/number-of-1-bits
14,Longest Common Prefix,35.4%,Easy,0.029493413243583278, https://leetcode.com/problems/longest-common-prefix
176,Second Highest Salary,31.6%,Easy,0.029252542837437355, https://leetcode.com/problems/second-highest-salary
472,Concatenated Words,43.7%,Hard,0.027664281472355556, https://leetcode.com/problems/concatenated-words
11,Container With Most Water,50.8%,Medium,0.02727648457622222, https://leetcode.com/problems/container-with-most-water
1379,Find a Corresponding Node of a Binary Tree in a Clone of That Tree,83.8%,Medium,0.02645656953683045, https://leetcode.com/problems/find-a-corresponding-node-of-a-binary-tree-in-a-clone-of-that-tree
1305,All Elements in Two Binary Search Trees,76.1%,Medium,0.026282721799194744, https://leetcode.com/problems/all-elements-in-two-binary-search-trees
373,Find K Pairs with Smallest Sums,36.7%,Medium,0.02626546261018635, https://leetcode.com/problems/find-k-pairs-with-smallest-sums
111,Minimum Depth of Binary Tree,37.4%,Easy,0.026222413650382477, https://leetcode.com/problems/minimum-depth-of-binary-tree
979,Distribute Coins in Binary Tree,68.9%,Medium,0.026196651946570663, https://leetcode.com/problems/distribute-coins-in-binary-tree
81,Search in Rotated Sorted Array II,33.0%,Medium,0.026111144003685752, https://leetcode.com/problems/search-in-rotated-sorted-array-ii
46,Permutations,63.5%,Medium,0.026064861710547768, https://leetcode.com/problems/permutations
403,Frog Jump,39.7%,Hard,0.0259249775263148, https://leetcode.com/problems/frog-jump
387,First Unique Character in a String,53.4%,Easy,0.02587600384690711, https://leetcode.com/problems/first-unique-character-in-a-string
90,Subsets II,47.1%,Medium,0.025497131933483772, https://leetcode.com/problems/subsets-ii
218,The Skyline Problem,34.6%,Hard,0.025479085300984906, https://leetcode.com/problems/the-skyline-problem
148,Sort List,42.3%,Medium,0.025036078161324866, https://leetcode.com/problems/sort-list
189,Rotate Array,34.7%,Easy,0.024924029676386045, https://leetcode.com/problems/rotate-array
338,Counting Bits,69.5%,Medium,0.024325523767440974, https://leetcode.com/problems/counting-bits
4,Median of Two Sorted Arrays,29.6%,Hard,0.024130115852798662, https://leetcode.com/problems/median-of-two-sorted-arrays
662,Maximum Width of Binary Tree,41.0%,Medium,0.024116924478312346, https://leetcode.com/problems/maximum-width-of-binary-tree
26,Remove Duplicates from Sorted Array,45.1%,Easy,0.02364518575043321, https://leetcode.com/problems/remove-duplicates-from-sorted-array
430,Flatten a Multilevel Doubly Linked List,55.1%,Medium,0.023579819235111637, https://leetcode.com/problems/flatten-a-multilevel-doubly-linked-list
414,Third Maximum Number,30.5%,Easy,0.023155137938555212, https://leetcode.com/problems/third-maximum-number
449,Serialize and Deserialize BST,52.0%,Medium,0.02246023667974994, https://leetcode.com/problems/serialize-and-deserialize-bst
285,Inorder Successor in BST,40.4%,Medium,0.02233482010057984, https://leetcode.com/problems/inorder-successor-in-bst
1019,Next Greater Node In Linked List,57.4%,Medium,0.02159911180346178, https://leetcode.com/problems/next-greater-node-in-linked-list
300,Longest Increasing Subsequence,42.6%,Medium,0.020893943681912164, https://leetcode.com/problems/longest-increasing-subsequence
206,Reverse Linked List,62.5%,Easy,0.02086427467076072, https://leetcode.com/problems/reverse-linked-list
1137,N-th Tribonacci Number,55.9%,Easy,0.02072613051711693, https://leetcode.com/problems/n-th-tribonacci-number
48,Rotate Image,56.7%,Medium,0.020228249775471566, https://leetcode.com/problems/rotate-image
75,Sort Colors,47.3%,Medium,0.019822254574171295, https://leetcode.com/problems/sort-colors
525,Contiguous Array,42.8%,Medium,0.01975372873623256, https://leetcode.com/problems/contiguous-array
787,Cheapest Flights Within K Stops,39.3%,Medium,0.018824085245635554, https://leetcode.com/problems/cheapest-flights-within-k-stops
1008,Construct Binary Search Tree from Preorder Traversal,78.4%,Medium,0.01844220088035248, https://leetcode.com/problems/construct-binary-search-tree-from-preorder-traversal
235,Lowest Common Ancestor of a Binary Search Tree,49.9%,Easy,0.018394142155974434, https://leetcode.com/problems/lowest-common-ancestor-of-a-binary-search-tree
346,Moving Average from Data Stream,70.9%,Easy,0.0176683041333139, https://leetcode.com/problems/moving-average-from-data-stream
637,Average of Levels in Binary Tree,63.1%,Easy,0.01764492183745197, https://leetcode.com/problems/average-of-levels-in-binary-tree
706,Design HashMap,61.3%,Easy,0.01752893260576219, https://leetcode.com/problems/design-hashmap
1266,Minimum Time Visiting All Points,79.6%,Easy,0.017354014693151613, https://leetcode.com/problems/minimum-time-visiting-all-points
95,Unique Binary Search Trees II,40.6%,Medium,0.016856699181010838, https://leetcode.com/problems/unique-binary-search-trees-ii
178,Rank Scores,45.8%,Medium,0.016785958549561074, https://leetcode.com/problems/rank-scores
509,Fibonacci Number,67.2%,Easy,0.01593518138579736, https://leetcode.com/problems/fibonacci-number
384,Shuffle an Array,52.8%,Medium,0.015250009609723824, https://leetcode.com/problems/shuffle-an-array
203,Remove Linked List Elements,38.6%,Easy,0.014519311324453305, https://leetcode.com/problems/remove-linked-list-elements
653,Two Sum IV - Input is a BST,55.5%,Easy,0.014224990931347289, https://leetcode.com/problems/two-sum-iv-input-is-a-bst
150,Evaluate Reverse Polish Notation,36.3%,Medium,0.01413451093490476, https://leetcode.com/problems/evaluate-reverse-polish-notation
21,Merge Two Sorted Lists,53.5%,Easy,0.014012111332134735, https://leetcode.com/problems/merge-two-sorted-lists
179,Largest Number,28.8%,Medium,0.013865040137171665, https://leetcode.com/problems/largest-number
13,Roman to Integer,55.7%,Easy,0.013645103403569418, https://leetcode.com/problems/roman-to-integer
496,Next Greater Element I,63.8%,Easy,0.013201511858535894, https://leetcode.com/problems/next-greater-element-i
852,Peak Index in a Mountain Array,71.6%,Easy,0.012618463959211509, https://leetcode.com/problems/peak-index-in-a-mountain-array
287,Find the Duplicate Number,55.5%,Medium,0.012335682739188652, https://leetcode.com/problems/find-the-duplicate-number
172,Factorial Trailing Zeroes,37.8%,Easy,0.012326812480658571, https://leetcode.com/problems/factorial-trailing-zeroes
437,Path Sum III,47.2%,Medium,0.012128711446614806, https://leetcode.com/problems/path-sum-iii
7,Reverse Integer,25.8%,Easy,0.011576347096986317, https://leetcode.com/problems/reverse-integer
205,Isomorphic Strings,39.8%,Easy,0.011544139746865315, https://leetcode.com/problems/isomorphic-strings
171,Excel Sheet Column Number,55.9%,Easy,0.011195191092491645, https://leetcode.com/problems/excel-sheet-column-number
212,Word Search II,34.9%,Hard,0.009845021678804893, https://leetcode.com/problems/word-search-ii
151,Reverse Words in a String,21.9%,Medium,0.009570916441992467, https://leetcode.com/problems/reverse-words-in-a-string
70,Climbing Stairs,47.8%,Easy,0.009390798483527519, https://leetcode.com/problems/climbing-stairs
32,Longest Valid Parentheses,28.4%,Hard,0.009111680351255843, https://leetcode.com/problems/longest-valid-parentheses
208,Implement Trie (Prefix Tree),49.4%,Medium,0.009105457856626612, https://leetcode.com/problems/implement-trie-prefix-tree
392,Is Subsequence,49.2%,Easy,0.009088906012344746, https://leetcode.com/problems/is-subsequence
128,Longest Consecutive Sequence,45.1%,Hard,0.009051883485315484, https://leetcode.com/problems/longest-consecutive-sequence
28,Implement strStr(),34.5%,Easy,0.008850485542574548, https://leetcode.com/problems/implement-strstr
209,Minimum Size Subarray Sum,38.2%,Medium,0.00841401682484616, https://leetcode.com/problems/minimum-size-subarray-sum
6,ZigZag Conversion,36.3%,Medium,0.0077116248757144665, https://leetcode.com/problems/zigzag-conversion
101,Symmetric Tree,46.8%,Easy,0.007646596306528098, https://leetcode.com/problems/symmetric-tree
145,Binary Tree Postorder Traversal,55.0%,Hard,0.00751459482064135, https://leetcode.com/problems/binary-tree-postorder-traversal
66,Plus One,43.0%,Easy,0.007324847595025828, https://leetcode.com/problems/plus-one
1528,Shuffle String,86.1%,Easy,0.006295047716793515, https://leetcode.com/problems/shuffle-string
24,Swap Nodes in Pairs,50.4%,Medium,0.0062218275061505365, https://leetcode.com/problems/swap-nodes-in-pairs
64,Minimum Path Sum,54.5%,Medium,0.006127470152097104, https://leetcode.com/problems/minimum-path-sum
105,Construct Binary Tree from Preorder and Inorder Traversal,48.8%,Medium,0.005628268691614718, https://leetcode.com/problems/construct-binary-tree-from-preorder-and-inorder-traversal
152,Maximum Product Subarray,31.7%,Medium,0.005590510716885066, https://leetcode.com/problems/maximum-product-subarray
108,Convert Sorted Array to Binary Search Tree,57.9%,Easy,0.005554027051374908, https://leetcode.com/problems/convert-sorted-array-to-binary-search-tree
268,Missing Number,51.7%,Easy,0.0048804391649084865, https://leetcode.com/problems/missing-number
154,Find Minimum in Rotated Sorted Array II,41.6%,Hard,0.004780123824719199, https://leetcode.com/problems/find-minimum-in-rotated-sorted-array-ii
155,Min Stack,44.5%,Easy,0.00474891074128171, https://leetcode.com/problems/min-stack
234,Palindrome Linked List,39.3%,Easy,0.004533613114828982, https://leetcode.com/problems/palindrome-linked-list
17,Letter Combinations of a Phone Number,46.8%,Medium,0.0044018999217624675, https://leetcode.com/problems/letter-combinations-of-a-phone-number
210,Course Schedule II,40.7%,Medium,0.0042893974831731225, https://leetcode.com/problems/course-schedule-ii
103,Binary Tree Zigzag Level Order Traversal,48.3%,Medium,0.003839922800048048, https://leetcode.com/problems/binary-tree-zigzag-level-order-traversal
79,Word Search,35.6%,Medium,0.003741741363018696, https://leetcode.com/problems/word-search
141,Linked List Cycle,41.1%,Easy,0.0034937584669245472, https://leetcode.com/problems/linked-list-cycle
94,Binary Tree Inorder Traversal,63.3%,Medium,0.0033551449021403577, https://leetcode.com/problems/binary-tree-inorder-traversal
260,Single Number III,64.3%,Medium,0.0020288097849578786, https://leetcode.com/problems/single-number-iii
1 953 Verifying an Alien Dictionary 54.1% Easy 2.989885912665777 https://leetcode.com/problems/verifying-an-alien-dictionary
2 1249 Minimum Remove to Make Valid Parentheses 62.5% Medium 2.789692716779026 https://leetcode.com/problems/minimum-remove-to-make-valid-parentheses
3 560 Subarray Sum Equals K 43.9% Medium 2.589499520892275 https://leetcode.com/problems/subarray-sum-equals-k
4 680 Valid Palindrome II 36.6% Easy 2.4309487236103293 https://leetcode.com/problems/valid-palindrome-ii
5 973 K Closest Points to Origin 63.8% Medium 2.4168563957837113 https://leetcode.com/problems/k-closest-points-to-origin
6 238 Product of Array Except Self 60.1% Medium 2.3907554290635766 https://leetcode.com/problems/product-of-array-except-self
7 273 Integer to English Words 27.1% Hard 2.1905622331768257 https://leetcode.com/problems/integer-to-english-words
8 269 Alien Dictionary 33.3% Hard 1.9903690372900749 https://leetcode.com/problems/alien-dictionary
9 415 Add Strings 47.5% Easy 1.9412871417683926 https://leetcode.com/problems/add-strings
10 1428 Leftmost Column with at Least a One 46.8% Medium 1.7410939458816417 https://leetcode.com/problems/leftmost-column-with-at-least-a-one
11 158 Read N Characters Given Read4 II - Call multiple times 33.8% Hard 1.7021507666261801 https://leetcode.com/problems/read-n-characters-given-read4-ii-call-multiple-times
12 301 Remove Invalid Parentheses 43.3% Hard 1.6508280515405795 https://leetcode.com/problems/remove-invalid-parentheses
13 199 Binary Tree Right Side View 54.1% Medium 1.6398580822570061 https://leetcode.com/problems/binary-tree-right-side-view
14 211 Add and Search Word - Data structure design 38.1% Medium 1.5661206772732004 https://leetcode.com/problems/add-and-search-word-data-structure-design
15 438 Find All Anagrams in a String 43.3% Medium 1.525736950713966 https://leetcode.com/problems/find-all-anagrams-in-a-string
16 297 Serialize and Deserialize Binary Tree 47.5% Hard 1.45465966830531 https://leetcode.com/problems/serialize-and-deserialize-binary-tree
17 278 First Bad Version 35.7% Easy 1.414379824999279 https://leetcode.com/problems/first-bad-version
18 938 Range Sum of BST 81.3% Easy 1.3387896500848302 https://leetcode.com/problems/range-sum-of-bst
19 215 Kth Largest Element in an Array 55.4% Medium 1.3206473731391246 https://leetcode.com/problems/kth-largest-element-in-an-array
20 124 Binary Tree Maximum Path Sum 34.3% Hard 1.3042127575609332 https://leetcode.com/problems/binary-tree-maximum-path-sum
21 23 Merge k Sorted Lists 40.2% Hard 1.2054838918356545 https://leetcode.com/problems/merge-k-sorted-lists
22 523 Continuous Subarray Sum 24.6% Medium 1.2029321441561993 https://leetcode.com/problems/continuous-subarray-sum
23 311 Sparse Matrix Multiplication 61.9% Medium 1.1864036360584072 https://leetcode.com/problems/sparse-matrix-multiplication
24 398 Random Pick Index 56.0% Medium 1.1731453405306764 https://leetcode.com/problems/random-pick-index
25 173 Binary Search Tree Iterator 56.6% Medium 1.1576476302611085 https://leetcode.com/problems/binary-search-tree-iterator
26 67 Add Binary 45.2% Easy 1.1492351430881342 https://leetcode.com/problems/add-binary
27 270 Closest Binary Search Tree Value 48.5% Easy 1.128109605935724 https://leetcode.com/problems/closest-binary-search-tree-value
28 636 Exclusive Time of Functions 51.9% Medium 1.070608304685468 https://leetcode.com/problems/exclusive-time-of-functions
29 282 Expression Add Operators 35.5% Hard 1.0455990970504063 https://leetcode.com/problems/expression-add-operators
30 340 Longest Substring with At Most K Distinct Characters 44.1% Hard 1.0267418846400203 https://leetcode.com/problems/longest-substring-with-at-most-k-distinct-characters
31 125 Valid Palindrome 36.7% Easy 1.0148317568156204 https://leetcode.com/problems/valid-palindrome
32 986 Interval List Intersections 67.3% Medium 1.0057274214846563 https://leetcode.com/problems/interval-list-intersections
33 689 Maximum Sum of 3 Non-Overlapping Subarrays 46.3% Hard 0.9947846759711312 https://leetcode.com/problems/maximum-sum-of-3-non-overlapping-subarrays
34 88 Merge Sorted Array 39.4% Easy 0.9801695539990253 https://leetcode.com/problems/merge-sorted-array
35 543 Diameter of Binary Tree 48.4% Easy 0.9666819038179104 https://leetcode.com/problems/diameter-of-binary-tree
36 249 Group Shifted Strings 55.1% Medium 0.945666077174907 https://leetcode.com/problems/group-shifted-strings
37 670 Maximum Swap 43.6% Medium 0.9249941895303234 https://leetcode.com/problems/maximum-swap
38 65 Valid Number 15.3% Hard 0.908165324430238 https://leetcode.com/problems/valid-number
39 339 Nested List Weight Sum 74.0% Easy 0.9052609305482283 https://leetcode.com/problems/nested-list-weight-sum
40 987 Vertical Order Traversal of a Binary Tree 36.6% Medium 0.8804156410839885 https://leetcode.com/problems/vertical-order-traversal-of-a-binary-tree
41 56 Merge Intervals 39.3% Medium 0.8427900387945232 https://leetcode.com/problems/merge-intervals
42 896 Monotonic Array 57.9% Easy 0.8393770268957597 https://leetcode.com/problems/monotonic-array
43 1026 Maximum Difference Between Node and Ancestor 66.0% Medium 0.7618015852980233 https://leetcode.com/problems/maximum-difference-between-node-and-ancestor
44 31 Next Permutation 32.6% Medium 0.7395169896605716 https://leetcode.com/problems/next-permutation
45 528 Random Pick with Weight 43.9% Medium 0.7321595446631552 https://leetcode.com/problems/random-pick-with-weight
46 721 Accounts Merge 48.8% Medium 0.7287314592848576 https://leetcode.com/problems/accounts-merge
47 34 Find First and Last Position of Element in Sorted Array 36.2% Medium 0.7044168429677726 https://leetcode.com/problems/find-first-and-last-position-of-element-in-sorted-array
48 785 Is Graph Bipartite? 47.5% Medium 0.7029856295602332 https://leetcode.com/problems/is-graph-bipartite
49 1060 Missing Element in Sorted Array 54.5% Medium 0.6876375247489758 https://leetcode.com/problems/missing-element-in-sorted-array
50 133 Clone Graph 34.8% Medium 0.6874118104752011 https://leetcode.com/problems/clone-graph
51 42 Trapping Rain Water 48.9% Hard 0.683618605098175 https://leetcode.com/problems/trapping-rain-water
52 29 Divide Two Integers 16.4% Medium 0.6823861236036471 https://leetcode.com/problems/divide-two-integers
53 76 Minimum Window Substring 34.6% Hard 0.6814364325080815 https://leetcode.com/problems/minimum-window-substring
54 236 Lowest Common Ancestor of a Binary Tree 45.7% Medium 0.6555317936561839 https://leetcode.com/problems/lowest-common-ancestor-of-a-binary-tree
55 616 Add Bold Tag in String 43.1% Medium 0.6372987390704172 https://leetcode.com/problems/add-bold-tag-in-string
56 314 Binary Tree Vertical Order Traversal 45.3% Medium 0.6368436274564796 https://leetcode.com/problems/binary-tree-vertical-order-traversal
57 426 Convert Binary Search Tree to Sorted Doubly Linked List 59.1% Medium 0.6325225587435105 https://leetcode.com/problems/convert-binary-search-tree-to-sorted-doubly-linked-list
58 498 Diagonal Traverse 48.2% Medium 0.6127841327406813 https://leetcode.com/problems/diagonal-traverse
59 766 Toeplitz Matrix 65.1% Easy 0.6045617437458672 https://leetcode.com/problems/toeplitz-matrix
60 958 Check Completeness of a Binary Tree 52.1% Medium 0.5833765144245663 https://leetcode.com/problems/check-completeness-of-a-binary-tree
61 1197 Minimum Knight Moves 36.1% Medium 0.5616591289700842 https://leetcode.com/problems/minimum-knight-moves
62 419 Battleships in a Board 70.0% Medium 0.5613354788149493 https://leetcode.com/problems/battleships-in-a-board
63 767 Reorganize String 48.7% Medium 0.5613354788149493 https://leetcode.com/problems/reorganize-string
64 380 Insert Delete GetRandom O(1) 47.5% Medium 0.5382766101249649 https://leetcode.com/problems/insert-delete-getrandom-o1
65 227 Basic Calculator II 36.9% Medium 0.5316918663537997 https://leetcode.com/problems/basic-calculator-ii
66 71 Simplify Path 32.6% Medium 0.5262793676678309 https://leetcode.com/problems/simplify-path
67 839 Similar String Groups 38.6% Hard 0.5248118657407306 https://leetcode.com/problems/similar-string-groups
68 1123 Lowest Common Ancestor of Deepest Leaves 66.8% Medium 0.4992480704235479 https://leetcode.com/problems/lowest-common-ancestor-of-deepest-leaves
69 432 All O`one Data Structure 32.4% Hard 0.49573913073261056 https://leetcode.com/problems/all-oone-data-structure
70 317 Shortest Distance from All Buildings 41.4% Hard 0.4817811959810462 https://leetcode.com/problems/shortest-distance-from-all-buildings
71 109 Convert Sorted List to Binary Search Tree 47.7% Medium 0.47905346476565347 https://leetcode.com/problems/convert-sorted-list-to-binary-search-tree
72 139 Word Break 40.1% Medium 0.4760457233294034 https://leetcode.com/problems/word-break
73 658 Find K Closest Elements 40.9% Medium 0.4718862780603521 https://leetcode.com/problems/find-k-closest-elements
74 138 Copy List with Random Pointer 36.4% Medium 0.44498832447784914 https://leetcode.com/problems/copy-list-with-random-pointer
75 825 Friends Of Appropriate Ages 42.7% Medium 0.43427293431510494 https://leetcode.com/problems/friends-of-appropriate-ages
76 349 Intersection of Two Arrays 62.5% Easy 0.4224803991237512 https://leetcode.com/problems/intersection-of-two-arrays
77 146 LRU Cache 33.2% Medium 0.4110212101491863 https://leetcode.com/problems/lru-cache
78 157 Read N Characters Given Read4 34.2% Easy 0.39066859991139324 https://leetcode.com/problems/read-n-characters-given-read4
79 708 Insert into a Sorted Circular Linked List 31.6% Medium 0.3886132680726728 https://leetcode.com/problems/insert-into-a-sorted-circular-linked-list
80 463 Island Perimeter 65.7% Easy 0.3815418531421575 https://leetcode.com/problems/island-perimeter
81 934 Shortest Bridge 48.2% Medium 0.3715318913226816 https://leetcode.com/problems/shortest-bridge
82 921 Minimum Add to Make Parentheses Valid 73.7% Medium 0.36363496556057356 https://leetcode.com/problems/minimum-add-to-make-parentheses-valid
83 33 Search in Rotated Sorted Array 34.5% Medium 0.35617336232817126 https://leetcode.com/problems/search-in-rotated-sorted-array
84 400 Nth Digit 31.7% Medium 0.33647223662121295 https://leetcode.com/problems/nth-digit
85 540 Single Element in a Sorted Array 57.9% Medium 0.33133226559120954 https://leetcode.com/problems/single-element-in-a-sorted-array
86 333 Largest BST Subtree 35.8% Medium 0.32931497055013925 https://leetcode.com/problems/largest-bst-subtree
87 827 Making A Large Island 45.7% Hard 0.32879599515977564 https://leetcode.com/problems/making-a-large-island
88 43 Multiply Strings 33.9% Medium 0.3279710815981375 https://leetcode.com/problems/multiply-strings
89 286 Walls and Gates 54.5% Medium 0.319361875095049 https://leetcode.com/problems/walls-and-gates
90 1269 Number of Ways to Stay in the Same Place After Some Steps 43.2% Hard 0.3144566709952356 https://leetcode.com/problems/number-of-ways-to-stay-in-the-same-place-after-some-steps
91 678 Valid Parenthesis String 31.0% Medium 0.31306090671867376 https://leetcode.com/problems/valid-parenthesis-string
92 1233 Remove Sub-Folders from the Filesystem 59.5% Medium 0.31269697112755473 https://leetcode.com/problems/remove-sub-folders-from-the-filesystem
93 1242 Web Crawler Multithreaded 45.9% Medium 0.30961714931803663 https://leetcode.com/problems/web-crawler-multithreaded
94 536 Construct Binary Tree from String 48.3% Medium 0.303629619668917 https://leetcode.com/problems/construct-binary-tree-from-string
95 378 Kth Smallest Element in a Sorted Matrix 54.3% Medium 0.303069224638031 https://leetcode.com/problems/kth-smallest-element-in-a-sorted-matrix
96 10 Regular Expression Matching 26.8% Hard 0.3026257535192428 https://leetcode.com/problems/regular-expression-matching
97 939 Minimum Area Rectangle 51.8% Medium 0.29924289485285693 https://leetcode.com/problems/minimum-area-rectangle
98 936 Stamping The Sequence 42.8% Hard 0.2972515234679316 https://leetcode.com/problems/stamping-the-sequence
99 253 Meeting Rooms II 45.7% Medium 0.29470460870072 https://leetcode.com/problems/meeting-rooms-ii
100 329 Longest Increasing Path in a Matrix 43.4% Hard 0.29062882263712253 https://leetcode.com/problems/longest-increasing-path-in-a-matrix
101 1424 Diagonal Traverse II 42.4% Medium 0.28406186115878557 https://leetcode.com/problems/diagonal-traverse-ii
102 93 Restore IP Addresses 35.6% Medium 0.27714773876682147 https://leetcode.com/problems/restore-ip-addresses
103 695 Max Area of Island 62.7% Medium 0.2770125235595406 https://leetcode.com/problems/max-area-of-island
104 548 Split Array with Equal Sum 46.4% Medium 0.2761315220005779 https://leetcode.com/problems/split-array-with-equal-sum
105 1216 Valid Palindrome III 47.8% Hard 0.2752815592533259 https://leetcode.com/problems/valid-palindrome-iii
106 50 Pow(x n) 30.3% Medium 0.2584425901237734 https://leetcode.com/problems/powx-n
107 304 Range Sum Query 2D - Immutable 38.6% Medium 0.24975649223064128 https://leetcode.com/problems/range-sum-query-2d-immutable
108 621 Task Scheduler 50.1% Medium 0.24973714088765747 https://leetcode.com/problems/task-scheduler
109 163 Missing Ranges 24.3% Medium 0.24869662573882725 https://leetcode.com/problems/missing-ranges
110 494 Target Sum 46.3% Medium 0.2453642433771354 https://leetcode.com/problems/target-sum
111 8 String to Integer (atoi) 15.4% Medium 0.24257917433914686 https://leetcode.com/problems/string-to-integer-atoi
112 863 All Nodes Distance K in Binary Tree 55.4% Medium 0.24186418612910326 https://leetcode.com/problems/all-nodes-distance-k-in-binary-tree
113 452 Minimum Number of Arrows to Burst Balloons 49.6% Medium 0.23843368813228313 https://leetcode.com/problems/minimum-number-of-arrows-to-burst-balloons
114 381 Insert Delete GetRandom O(1) - Duplicates allowed 34.1% Hard 0.2349381278070467 https://leetcode.com/problems/insert-delete-getrandom-o1-duplicates-allowed
115 844 Backspace String Compare 46.4% Easy 0.2349381278070467 https://leetcode.com/problems/backspace-string-compare
116 855 Exam Room 43.1% Medium 0.23361485118150516 https://leetcode.com/problems/exam-room
117 92 Reverse Linked List II 38.8% Medium 0.23274095442047985 https://leetcode.com/problems/reverse-linked-list-ii
118 772 Basic Calculator III 41.3% Hard 0.2322522675124501 https://leetcode.com/problems/basic-calculator-iii
119 200 Number of Islands 46.8% Medium 0.23204607197311616 https://leetcode.com/problems/number-of-islands
120 22 Generate Parentheses 62.7% Medium 0.21981634397194805 https://leetcode.com/problems/generate-parentheses
121 408 Valid Word Abbreviation 30.6% Easy 0.21878624594525403 https://leetcode.com/problems/valid-word-abbreviation
122 332 Reconstruct Itinerary 36.7% Medium 0.20016691711396506 https://leetcode.com/problems/reconstruct-itinerary
123 348 Design Tic-Tac-Toe 54.3% Medium 0.19933290262049122 https://leetcode.com/problems/design-tic-tac-toe
124 140 Word Break II 32.6% Hard 0.19849973124449666 https://leetcode.com/problems/word-break-ii
125 865 Smallest Subtree with all the Deepest Nodes 60.8% Medium 0.19796045067840945 https://leetcode.com/problems/smallest-subtree-with-all-the-deepest-nodes
126 364 Nested List Weight Sum II 62.8% Medium 0.1959851135234185 https://leetcode.com/problems/nested-list-weight-sum-ii
127 480 Sliding Window Median 37.2% Hard 0.19425690734322737 https://leetcode.com/problems/sliding-window-median
128 121 Best Time to Buy and Sell Stock 50.5% Easy 0.19278242868174433 https://leetcode.com/problems/best-time-to-buy-and-sell-stock
129 791 Custom Sort String 65.7% Medium 0.1922835495227023 https://leetcode.com/problems/custom-sort-string
130 246 Strobogrammatic Number 45.0% Easy 0.187957697907993 https://leetcode.com/problems/strobogrammatic-number
131 323 Number of Connected Components in an Undirected Graph 56.0% Medium 0.18178978331691914 https://leetcode.com/problems/number-of-connected-components-in-an-undirected-graph
132 759 Employee Free Time 66.3% Hard 0.1816986978513639 https://leetcode.com/problems/employee-free-time
133 1245 Tree Diameter 60.1% Medium 0.17869178874337593 https://leetcode.com/problems/tree-diameter
134 162 Find Peak Element 43.3% Medium 0.17622454513525765 https://leetcode.com/problems/find-peak-element
135 224 Basic Calculator 36.8% Hard 0.17452286430813568 https://leetcode.com/problems/basic-calculator
136 1213 Intersection of Three Sorted Arrays 78.9% Easy 0.1735948056557174 https://leetcode.com/problems/intersection-of-three-sorted-arrays
137 277 Find the Celebrity 41.8% Medium 0.17260355263083088 https://leetcode.com/problems/find-the-celebrity
138 143 Reorder List 37.1% Medium 0.1708995553293303 https://leetcode.com/problems/reorder-list
139 609 Find Duplicate File in System 59.5% Medium 0.16971838464062922 https://leetcode.com/problems/find-duplicate-file-in-system
140 963 Minimum Area Rectangle II 50.9% Medium 0.16635770580494058 https://leetcode.com/problems/minimum-area-rectangle-ii
141 15 3Sum 26.8% Medium 0.1640862201935116 https://leetcode.com/problems/3sum
142 19 Remove Nth Node From End of List 35.2% Medium 0.15983469543773265 https://leetcode.com/problems/remove-nth-node-from-end-of-list
143 647 Palindromic Substrings 60.6% Medium 0.154673282399905 https://leetcode.com/problems/palindromic-substrings
144 1094 Car Pooling 56.7% Medium 0.15180601286800416 https://leetcode.com/problems/car-pooling
145 126 Word Ladder II 22.1% Hard 0.15135837956172798 https://leetcode.com/problems/word-ladder-ii
146 1032 Stream of Characters 48.3% Hard 0.14378789279171172 https://leetcode.com/problems/stream-of-characters
147 91 Decode Ways 24.7% Medium 0.13946258598914826 https://leetcode.com/problems/decode-ways
148 1209 Remove All Adjacent Duplicates in String II 56.9% Medium 0.13712574822724946 https://leetcode.com/problems/remove-all-adjacent-duplicates-in-string-ii
149 622 Design Circular Queue 43.8% Medium 0.1327502812764459 https://leetcode.com/problems/design-circular-queue
150 977 Squares of a Sorted Array 72.1% Easy 0.13133600206108695 https://leetcode.com/problems/squares-of-a-sorted-array
151 117 Populating Next Right Pointers in Each Node II 39.1% Medium 0.13130956766464877 https://leetcode.com/problems/populating-next-right-pointers-in-each-node-ii
152 1 Two Sum 45.6% Easy 0.1299229690633312 https://leetcode.com/problems/two-sum
153 347 Top K Frequent Elements 61.2% Medium 0.12591062025304192 https://leetcode.com/problems/top-k-frequent-elements
154 78 Subsets 62.0% Medium 0.12486971572185374 https://leetcode.com/problems/subsets
155 257 Binary Tree Paths 51.5% Easy 0.12113556412256954 https://leetcode.com/problems/binary-tree-paths
156 1439 Find the Kth Smallest Sum of a Matrix With Sorted Rows 59.5% Hard 0.11918851726511835 https://leetcode.com/problems/find-the-kth-smallest-sum-of-a-matrix-with-sorted-rows
157 284 Peeking Iterator 45.7% Medium 0.11901099827011974 https://leetcode.com/problems/peeking-iterator
158 341 Flatten Nested List Iterator 52.9% Medium 0.11879160861126825 https://leetcode.com/problems/flatten-nested-list-iterator
159 3 Longest Substring Without Repeating Characters 30.4% Medium 0.11876423093459514 https://leetcode.com/problems/longest-substring-without-repeating-characters
160 207 Course Schedule 43.1% Medium 0.11725761496207857 https://leetcode.com/problems/course-schedule
161 1275 Find Winner on a Tic Tac Toe Game 52.8% Easy 0.11536465479210183 https://leetcode.com/problems/find-winner-on-a-tic-tac-toe-game
162 127 Word Ladder 29.6% Medium 0.11461293205885352 https://leetcode.com/problems/word-ladder
163 57 Insert Interval 33.5% Hard 0.11230236057981403 https://leetcode.com/problems/insert-interval
164 40 Combination Sum II 48.2% Medium 0.11145356111123644 https://leetcode.com/problems/combination-sum-ii
165 742 Closest Leaf in a Binary Tree 43.6% Medium 0.11060987154397002 https://leetcode.com/problems/closest-leaf-in-a-binary-tree
166 39 Combination Sum 56.1% Medium 0.10982174474537089 https://leetcode.com/problems/combination-sum
167 547 Friend Circles 58.6% Medium 0.10502210097355241 https://leetcode.com/problems/friend-circles
168 114 Flatten Binary Tree to Linked List 49.3% Medium 0.1050144350175837 https://leetcode.com/problems/flatten-binary-tree-to-linked-list
169 773 Sliding Puzzle 59.3% Hard 0.10294796925244239 https://leetcode.com/problems/sliding-puzzle
170 1411 Number of Ways to Paint N × 3 Grid 61.1% Hard 0.10135249426028749 https://leetcode.com/problems/number-of-ways-to-paint-n-3-grid
171 98 Validate Binary Search Tree 27.8% Medium 0.1008693132143216 https://leetcode.com/problems/validate-binary-search-tree
172 529 Minesweeper 59.1% Medium 0.09695424100489167 https://leetcode.com/problems/minesweeper
173 280 Wiggle Sort 63.8% Medium 0.09561417737468547 https://leetcode.com/problems/wiggle-sort
174 983 Minimum Cost For Tickets 60.5% Medium 0.09525339549949145 https://leetcode.com/problems/minimum-cost-for-tickets
175 160 Intersection of Two Linked Lists 40.6% Easy 0.09485223529696123 https://leetcode.com/problems/intersection-of-two-linked-lists
176 490 The Maze 51.4% Medium 0.09401490736696706 https://leetcode.com/problems/the-maze
177 1062 Longest Repeating Substring 57.2% Medium 0.09201889872025212 https://leetcode.com/problems/longest-repeating-substring
178 1132 Reported Posts II 34.4% Medium 0.0903548750399561 https://leetcode.com/problems/reported-posts-ii
179 272 Closest Binary Search Tree Value II 50.5% Hard 0.08994823666293948 https://leetcode.com/problems/closest-binary-search-tree-value-ii
180 358 Rearrange String k Distance Apart 34.9% Hard 0.08894748601649616 https://leetcode.com/problems/rearrange-string-k-distance-apart
181 995 Minimum Number of K Consecutive Bit Flips 46.8% Hard 0.08894748601649616 https://leetcode.com/problems/minimum-number-of-k-consecutive-bit-flips
182 692 Top K Frequent Words 51.8% Medium 0.08839354721658145 https://leetcode.com/problems/top-k-frequent-words
183 25 Reverse Nodes in k-Group 42.1% Hard 0.08835766048944313 https://leetcode.com/problems/reverse-nodes-in-k-group
184 549 Binary Tree Longest Consecutive Sequence II 47.0% Medium 0.08816278759467164 https://leetcode.com/problems/binary-tree-longest-consecutive-sequence-ii
185 116 Populating Next Right Pointers in Each Node 45.2% Medium 0.08636683942300452 https://leetcode.com/problems/populating-next-right-pointers-in-each-node
186 345 Reverse Vowels of a String 44.2% Easy 0.08413974844494757 https://leetcode.com/problems/reverse-vowels-of-a-string
187 443 String Compression 41.3% Easy 0.08391368024915737 https://leetcode.com/problems/string-compression
188 283 Move Zeroes 57.8% Easy 0.08379761717276897 https://leetcode.com/problems/move-zeroes
189 724 Find Pivot Index 44.0% Easy 0.08357684789821086 https://leetcode.com/problems/find-pivot-index
190 73 Set Matrix Zeroes 43.1% Medium 0.08271965106891821 https://leetcode.com/problems/set-matrix-zeroes
191 350 Intersection of Two Arrays II 51.4% Easy 0.08027374155116185 https://leetcode.com/problems/intersection-of-two-arrays-ii
192 875 Koko Eating Bananas 52.1% Medium 0.07919704166119315 https://leetcode.com/problems/koko-eating-bananas
193 1047 Remove All Adjacent Duplicates In String 68.6% Easy 0.0789551324793932 https://leetcode.com/problems/remove-all-adjacent-duplicates-in-string
194 166 Fraction to Recurring Decimal 21.6% Medium 0.0782795570551556 https://leetcode.com/problems/fraction-to-recurring-decimal
195 1254 Number of Closed Islands 60.5% Medium 0.07796154146971186 https://leetcode.com/problems/number-of-closed-islands
196 54 Spiral Matrix 34.1% Medium 0.07792846120043545 https://leetcode.com/problems/spiral-matrix
197 129 Sum Root to Leaf Numbers 49.1% Medium 0.07707974254287937 https://leetcode.com/problems/sum-root-to-leaf-numbers
198 137 Single Number II 52.4% Medium 0.07583984694698977 https://leetcode.com/problems/single-number-ii
199 515 Find Largest Value in Each Tree Row 61.1% Medium 0.07428007438287054 https://leetcode.com/problems/find-largest-value-in-each-tree-row
200 503 Next Greater Element II 56.5% Medium 0.07339377143296942 https://leetcode.com/problems/next-greater-element-ii
201 1004 Max Consecutive Ones III 59.1% Medium 0.07220094736995063 https://leetcode.com/problems/max-consecutive-ones-iii
202 1057 Campus Bikes 57.7% Medium 0.07107786641655695 https://leetcode.com/problems/campus-bikes
203 676 Implement Magic Dictionary 54.5% Medium 0.06995858860691037 https://leetcode.com/problems/implement-magic-dictionary
204 1091 Shortest Path in Binary Matrix 38.2% Medium 0.06984995317644427 https://leetcode.com/problems/shortest-path-in-binary-matrix
205 136 Single Number 65.5% Easy 0.0693807551554477 https://leetcode.com/problems/single-number
206 723 Candy Crush 69.2% Medium 0.06828590786613152 https://leetcode.com/problems/candy-crush
207 328 Odd Even Linked List 55.7% Medium 0.06677800280143044 https://leetcode.com/problems/odd-even-linked-list
208 240 Search a 2D Matrix II 43.2% Medium 0.06626158386149206 https://leetcode.com/problems/search-a-2d-matrix-ii
209 16 3Sum Closest 46.0% Medium 0.065777130514714 https://leetcode.com/problems/3sum-closest
210 53 Maximum Subarray 46.5% Easy 0.06356179958832935 https://leetcode.com/problems/maximum-subarray
211 428 Serialize and Deserialize N-ary Tree 59.4% Hard 0.06136894637629212 https://leetcode.com/problems/serialize-and-deserialize-n-ary-tree
212 491 Increasing Subsequences 46.1% Medium 0.058581901624802396 https://leetcode.com/problems/increasing-subsequences
213 2 Add Two Numbers 33.9% Medium 0.04985995397332526 https://leetcode.com/problems/add-two-numbers
214 242 Valid Anagram 56.9% Easy 0.04973624974928908 https://leetcode.com/problems/valid-anagram
215 388 Longest Absolute File Path 41.8% Medium 0.04849434993861047 https://leetcode.com/problems/longest-absolute-file-path
216 405 Convert a Number to Hexadecimal 43.9% Easy 0.0483770263821056 https://leetcode.com/problems/convert-a-number-to-hexadecimal
217 247 Strobogrammatic Number II 47.6% Medium 0.04757139497530258 https://leetcode.com/problems/strobogrammatic-number-ii
218 698 Partition to K Equal Sum Subsets 45.0% Medium 0.04685917114094188 https://leetcode.com/problems/partition-to-k-equal-sum-subsets
219 442 Find All Duplicates in an Array 67.8% Medium 0.04590593720045213 https://leetcode.com/problems/find-all-duplicates-in-an-array
220 49 Group Anagrams 56.9% Medium 0.045631752563977224 https://leetcode.com/problems/group-anagrams
221 20 Valid Parentheses 39.0% Easy 0.045585204865984434 https://leetcode.com/problems/valid-parentheses
222 5 Longest Palindromic Substring 29.5% Medium 0.04517328747428837 https://leetcode.com/problems/longest-palindromic-substring
223 935 Knight Dialer 45.2% Medium 0.04445176257083384 https://leetcode.com/problems/knight-dialer
224 55 Jump Game 34.6% Medium 0.04432039968066135 https://leetcode.com/problems/jump-game
225 102 Binary Tree Level Order Traversal 54.6% Medium 0.04369064305418892 https://leetcode.com/problems/binary-tree-level-order-traversal
226 1498 Number of Subsequences That Satisfy the Given Sum Condition 36.7% Medium 0.04334372921647208 https://leetcode.com/problems/number-of-subsequences-that-satisfy-the-given-sum-condition
227 435 Non-overlapping Intervals 42.9% Medium 0.04325518123147988 https://leetcode.com/problems/non-overlapping-intervals
228 399 Evaluate Division 51.6% Medium 0.043089480538103624 https://leetcode.com/problems/evaluate-division
229 716 Max Stack 42.6% Easy 0.042695919196489414 https://leetcode.com/problems/max-stack
230 669 Trim a Binary Search Tree 63.0% Easy 0.04255961441879593 https://leetcode.com/problems/trim-a-binary-search-tree
231 674 Longest Continuous Increasing Subsequence 45.9% Easy 0.04225980928988265 https://leetcode.com/problems/longest-continuous-increasing-subsequence
232 266 Palindrome Permutation 61.9% Easy 0.04158603377810283 https://leetcode.com/problems/palindrome-permutation
233 62 Unique Paths 54.1% Medium 0.04084052144450833 https://leetcode.com/problems/unique-paths
234 918 Maximum Sum Circular Subarray 33.7% Medium 0.04045040846284272 https://leetcode.com/problems/maximum-sum-circular-subarray
235 122 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
236 686 Repeated String Match 32.3% Easy 0.03984590854719967 https://leetcode.com/problems/repeated-string-match
237 406 Queue Reconstruction by Height 66.9% Medium 0.03949613834265583 https://leetcode.com/problems/queue-reconstruction-by-height
238 230 Kth Smallest Element in a BST 60.2% Medium 0.03895787134280517 https://leetcode.com/problems/kth-smallest-element-in-a-bst
239 168 Excel Sheet Column Title 31.1% Easy 0.03861483612777958 https://leetcode.com/problems/excel-sheet-column-title
240 74 Search a 2D Matrix 36.5% Medium 0.03685354875882915 https://leetcode.com/problems/search-a-2d-matrix
241 887 Super Egg Drop 27.1% Hard 0.03660060864484636 https://leetcode.com/problems/super-egg-drop
242 884 Uncommon Words from Two Sentences 63.3% Easy 0.036301626676214796 https://leetcode.com/problems/uncommon-words-from-two-sentences
243 334 Increasing Triplet Subsequence 40.0% Medium 0.03577488021091517 https://leetcode.com/problems/increasing-triplet-subsequence
244 295 Find Median from Data Stream 44.3% Hard 0.035519827248535335 https://leetcode.com/problems/find-median-from-data-stream
245 416 Partition Equal Subset Sum 43.7% Medium 0.034301326353463016 https://leetcode.com/problems/partition-equal-subset-sum
246 214 Shortest Palindrome 29.8% Hard 0.03419136474827932 https://leetcode.com/problems/shortest-palindrome
247 886 Possible Bipartition 44.2% Medium 0.034103901828857086 https://leetcode.com/problems/possible-bipartition
248 1360 Number of Days Between Two Dates 48.8% Easy 0.03401688527825427 https://leetcode.com/problems/number-of-days-between-two-dates
249 567 Permutation in String 44.4% Medium 0.033324075731591886 https://leetcode.com/problems/permutation-in-string
250 1287 Element Appearing More Than 25% In Sorted Array 60.2% Easy 0.033033556829153404 https://leetcode.com/problems/element-appearing-more-than-25-in-sorted-array
251 694 Number of Distinct Islands 56.0% Medium 0.03278982282299087 https://leetcode.com/problems/number-of-distinct-islands
252 824 Goat Latin 63.4% Easy 0.0317991816929387 https://leetcode.com/problems/goat-latin
253 44 Wildcard Matching 24.7% Hard 0.030573033362282363 https://leetcode.com/problems/wildcard-matching
254 1027 Longest Arithmetic Sequence 53.4% Medium 0.03030534949532895 https://leetcode.com/problems/longest-arithmetic-sequence
255 191 Number of 1 Bits 49.8% Easy 0.029560622742018188 https://leetcode.com/problems/number-of-1-bits
256 14 Longest Common Prefix 35.4% Easy 0.029493413243583278 https://leetcode.com/problems/longest-common-prefix
257 176 Second Highest Salary 31.6% Easy 0.029252542837437355 https://leetcode.com/problems/second-highest-salary
258 472 Concatenated Words 43.7% Hard 0.027664281472355556 https://leetcode.com/problems/concatenated-words
259 11 Container With Most Water 50.8% Medium 0.02727648457622222 https://leetcode.com/problems/container-with-most-water
260 1379 Find a Corresponding Node of a Binary Tree in a Clone of That Tree 83.8% Medium 0.02645656953683045 https://leetcode.com/problems/find-a-corresponding-node-of-a-binary-tree-in-a-clone-of-that-tree
261 1305 All Elements in Two Binary Search Trees 76.1% Medium 0.026282721799194744 https://leetcode.com/problems/all-elements-in-two-binary-search-trees
262 373 Find K Pairs with Smallest Sums 36.7% Medium 0.02626546261018635 https://leetcode.com/problems/find-k-pairs-with-smallest-sums
263 111 Minimum Depth of Binary Tree 37.4% Easy 0.026222413650382477 https://leetcode.com/problems/minimum-depth-of-binary-tree
264 979 Distribute Coins in Binary Tree 68.9% Medium 0.026196651946570663 https://leetcode.com/problems/distribute-coins-in-binary-tree
265 81 Search in Rotated Sorted Array II 33.0% Medium 0.026111144003685752 https://leetcode.com/problems/search-in-rotated-sorted-array-ii
266 46 Permutations 63.5% Medium 0.026064861710547768 https://leetcode.com/problems/permutations
267 403 Frog Jump 39.7% Hard 0.0259249775263148 https://leetcode.com/problems/frog-jump
268 387 First Unique Character in a String 53.4% Easy 0.02587600384690711 https://leetcode.com/problems/first-unique-character-in-a-string
269 90 Subsets II 47.1% Medium 0.025497131933483772 https://leetcode.com/problems/subsets-ii
270 218 The Skyline Problem 34.6% Hard 0.025479085300984906 https://leetcode.com/problems/the-skyline-problem
271 148 Sort List 42.3% Medium 0.025036078161324866 https://leetcode.com/problems/sort-list
272 189 Rotate Array 34.7% Easy 0.024924029676386045 https://leetcode.com/problems/rotate-array
273 338 Counting Bits 69.5% Medium 0.024325523767440974 https://leetcode.com/problems/counting-bits
274 4 Median of Two Sorted Arrays 29.6% Hard 0.024130115852798662 https://leetcode.com/problems/median-of-two-sorted-arrays
275 662 Maximum Width of Binary Tree 41.0% Medium 0.024116924478312346 https://leetcode.com/problems/maximum-width-of-binary-tree
276 26 Remove Duplicates from Sorted Array 45.1% Easy 0.02364518575043321 https://leetcode.com/problems/remove-duplicates-from-sorted-array
277 430 Flatten a Multilevel Doubly Linked List 55.1% Medium 0.023579819235111637 https://leetcode.com/problems/flatten-a-multilevel-doubly-linked-list
278 414 Third Maximum Number 30.5% Easy 0.023155137938555212 https://leetcode.com/problems/third-maximum-number
279 449 Serialize and Deserialize BST 52.0% Medium 0.02246023667974994 https://leetcode.com/problems/serialize-and-deserialize-bst
280 285 Inorder Successor in BST 40.4% Medium 0.02233482010057984 https://leetcode.com/problems/inorder-successor-in-bst
281 1019 Next Greater Node In Linked List 57.4% Medium 0.02159911180346178 https://leetcode.com/problems/next-greater-node-in-linked-list
282 300 Longest Increasing Subsequence 42.6% Medium 0.020893943681912164 https://leetcode.com/problems/longest-increasing-subsequence
283 206 Reverse Linked List 62.5% Easy 0.02086427467076072 https://leetcode.com/problems/reverse-linked-list
284 1137 N-th Tribonacci Number 55.9% Easy 0.02072613051711693 https://leetcode.com/problems/n-th-tribonacci-number
285 48 Rotate Image 56.7% Medium 0.020228249775471566 https://leetcode.com/problems/rotate-image
286 75 Sort Colors 47.3% Medium 0.019822254574171295 https://leetcode.com/problems/sort-colors
287 525 Contiguous Array 42.8% Medium 0.01975372873623256 https://leetcode.com/problems/contiguous-array
288 787 Cheapest Flights Within K Stops 39.3% Medium 0.018824085245635554 https://leetcode.com/problems/cheapest-flights-within-k-stops
289 1008 Construct Binary Search Tree from Preorder Traversal 78.4% Medium 0.01844220088035248 https://leetcode.com/problems/construct-binary-search-tree-from-preorder-traversal
290 235 Lowest Common Ancestor of a Binary Search Tree 49.9% Easy 0.018394142155974434 https://leetcode.com/problems/lowest-common-ancestor-of-a-binary-search-tree
291 346 Moving Average from Data Stream 70.9% Easy 0.0176683041333139 https://leetcode.com/problems/moving-average-from-data-stream
292 637 Average of Levels in Binary Tree 63.1% Easy 0.01764492183745197 https://leetcode.com/problems/average-of-levels-in-binary-tree
293 706 Design HashMap 61.3% Easy 0.01752893260576219 https://leetcode.com/problems/design-hashmap
294 1266 Minimum Time Visiting All Points 79.6% Easy 0.017354014693151613 https://leetcode.com/problems/minimum-time-visiting-all-points
295 95 Unique Binary Search Trees II 40.6% Medium 0.016856699181010838 https://leetcode.com/problems/unique-binary-search-trees-ii
296 178 Rank Scores 45.8% Medium 0.016785958549561074 https://leetcode.com/problems/rank-scores
297 509 Fibonacci Number 67.2% Easy 0.01593518138579736 https://leetcode.com/problems/fibonacci-number
298 384 Shuffle an Array 52.8% Medium 0.015250009609723824 https://leetcode.com/problems/shuffle-an-array
299 203 Remove Linked List Elements 38.6% Easy 0.014519311324453305 https://leetcode.com/problems/remove-linked-list-elements
300 653 Two Sum IV - Input is a BST 55.5% Easy 0.014224990931347289 https://leetcode.com/problems/two-sum-iv-input-is-a-bst
301 150 Evaluate Reverse Polish Notation 36.3% Medium 0.01413451093490476 https://leetcode.com/problems/evaluate-reverse-polish-notation
302 21 Merge Two Sorted Lists 53.5% Easy 0.014012111332134735 https://leetcode.com/problems/merge-two-sorted-lists
303 179 Largest Number 28.8% Medium 0.013865040137171665 https://leetcode.com/problems/largest-number
304 13 Roman to Integer 55.7% Easy 0.013645103403569418 https://leetcode.com/problems/roman-to-integer
305 496 Next Greater Element I 63.8% Easy 0.013201511858535894 https://leetcode.com/problems/next-greater-element-i
306 852 Peak Index in a Mountain Array 71.6% Easy 0.012618463959211509 https://leetcode.com/problems/peak-index-in-a-mountain-array
307 287 Find the Duplicate Number 55.5% Medium 0.012335682739188652 https://leetcode.com/problems/find-the-duplicate-number
308 172 Factorial Trailing Zeroes 37.8% Easy 0.012326812480658571 https://leetcode.com/problems/factorial-trailing-zeroes
309 437 Path Sum III 47.2% Medium 0.012128711446614806 https://leetcode.com/problems/path-sum-iii
310 7 Reverse Integer 25.8% Easy 0.011576347096986317 https://leetcode.com/problems/reverse-integer
311 205 Isomorphic Strings 39.8% Easy 0.011544139746865315 https://leetcode.com/problems/isomorphic-strings
312 171 Excel Sheet Column Number 55.9% Easy 0.011195191092491645 https://leetcode.com/problems/excel-sheet-column-number
313 212 Word Search II 34.9% Hard 0.009845021678804893 https://leetcode.com/problems/word-search-ii
314 151 Reverse Words in a String 21.9% Medium 0.009570916441992467 https://leetcode.com/problems/reverse-words-in-a-string
315 70 Climbing Stairs 47.8% Easy 0.009390798483527519 https://leetcode.com/problems/climbing-stairs
316 32 Longest Valid Parentheses 28.4% Hard 0.009111680351255843 https://leetcode.com/problems/longest-valid-parentheses
317 208 Implement Trie (Prefix Tree) 49.4% Medium 0.009105457856626612 https://leetcode.com/problems/implement-trie-prefix-tree
318 392 Is Subsequence 49.2% Easy 0.009088906012344746 https://leetcode.com/problems/is-subsequence
319 128 Longest Consecutive Sequence 45.1% Hard 0.009051883485315484 https://leetcode.com/problems/longest-consecutive-sequence
320 28 Implement strStr() 34.5% Easy 0.008850485542574548 https://leetcode.com/problems/implement-strstr
321 209 Minimum Size Subarray Sum 38.2% Medium 0.00841401682484616 https://leetcode.com/problems/minimum-size-subarray-sum
322 6 ZigZag Conversion 36.3% Medium 0.0077116248757144665 https://leetcode.com/problems/zigzag-conversion
323 101 Symmetric Tree 46.8% Easy 0.007646596306528098 https://leetcode.com/problems/symmetric-tree
324 145 Binary Tree Postorder Traversal 55.0% Hard 0.00751459482064135 https://leetcode.com/problems/binary-tree-postorder-traversal
325 66 Plus One 43.0% Easy 0.007324847595025828 https://leetcode.com/problems/plus-one
326 1528 Shuffle String 86.1% Easy 0.006295047716793515 https://leetcode.com/problems/shuffle-string
327 24 Swap Nodes in Pairs 50.4% Medium 0.0062218275061505365 https://leetcode.com/problems/swap-nodes-in-pairs
328 64 Minimum Path Sum 54.5% Medium 0.006127470152097104 https://leetcode.com/problems/minimum-path-sum
329 105 Construct Binary Tree from Preorder and Inorder Traversal 48.8% Medium 0.005628268691614718 https://leetcode.com/problems/construct-binary-tree-from-preorder-and-inorder-traversal
330 152 Maximum Product Subarray 31.7% Medium 0.005590510716885066 https://leetcode.com/problems/maximum-product-subarray
331 108 Convert Sorted Array to Binary Search Tree 57.9% Easy 0.005554027051374908 https://leetcode.com/problems/convert-sorted-array-to-binary-search-tree
332 268 Missing Number 51.7% Easy 0.0048804391649084865 https://leetcode.com/problems/missing-number
333 154 Find Minimum in Rotated Sorted Array II 41.6% Hard 0.004780123824719199 https://leetcode.com/problems/find-minimum-in-rotated-sorted-array-ii
334 155 Min Stack 44.5% Easy 0.00474891074128171 https://leetcode.com/problems/min-stack
335 234 Palindrome Linked List 39.3% Easy 0.004533613114828982 https://leetcode.com/problems/palindrome-linked-list
336 17 Letter Combinations of a Phone Number 46.8% Medium 0.0044018999217624675 https://leetcode.com/problems/letter-combinations-of-a-phone-number
337 210 Course Schedule II 40.7% Medium 0.0042893974831731225 https://leetcode.com/problems/course-schedule-ii
338 103 Binary Tree Zigzag Level Order Traversal 48.3% Medium 0.003839922800048048 https://leetcode.com/problems/binary-tree-zigzag-level-order-traversal
339 79 Word Search 35.6% Medium 0.003741741363018696 https://leetcode.com/problems/word-search
340 141 Linked List Cycle 41.1% Easy 0.0034937584669245472 https://leetcode.com/problems/linked-list-cycle
341 94 Binary Tree Inorder Traversal 63.3% Medium 0.0033551449021403577 https://leetcode.com/problems/binary-tree-inorder-traversal
342 260 Single Number III 64.3% Medium 0.0020288097849578786 https://leetcode.com/problems/single-number-iii