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Chore: Add headers to all the files (#54)

Browse Source 
## Description
- Add headers to all the CSV files

## Script used
```py
import csv
import os

# Set the path of the folder containing the CSV files
folder_path = "./LeetCode-Questions-CompanyWise"
headers = [
    "ID",
    "Title",
    "Acceptance",
    "Difficulty",
    "Frequency",
    "Leetcode Question Link",
]

# Loop through all the CSV files in the folder
for file_name in os.listdir(folder_path):
    if file_name.endswith(".csv"):
        # Read the CSV file into a list of rows
        file_path = os.path.join(folder_path, file_name)
        with open(file_path, "r") as f:
            reader = csv.reader(f)
            rows = list(reader)

        has_headers = False
        if len(rows) > 0 and rows[0] == headers:
            has_headers = True

        if not has_headers:
            rows.insert(0, headers)

            # Write the list of rows back to the CSV file
            with open(file_path, "w", newline="") as f:
                writer = csv.writer(f)
                writer.writerows(rows)

```
This commit is contained in:
Krishna Kumar Dey
2023-04-01 11:07:49 +05:30
committed by GitHub
parent 0aeadbd612
commit fb5f78b55e
534 changed files with 20291 additions and 19757 deletions
Download Patch File Download Diff File Expand all files Collapse all files

485
bloomberg_1year.csv
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@@ -1,242 +1,243 @@
1396,Design Underground System,64.7%,Medium,2.155218657865939, https://leetcode.com/problems/design-underground-system
1169,Invalid Transactions,31.2%,Medium,1.8705521944133323, https://leetcode.com/problems/invalid-transactions
430,Flatten a Multilevel Doubly Linked List,55.1%,Medium,1.8386285548491934, https://leetcode.com/problems/flatten-a-multilevel-doubly-linked-list
394,Decode String,50.0%,Medium,1.5539620913965866, https://leetcode.com/problems/decode-string
1274,Number of Ships in a Rectangle,66.3%,Hard,1.5168632132045061, https://leetcode.com/problems/number-of-ships-in-a-rectangle
200,Number of Islands,46.8%,Medium,1.2569671029144711, https://leetcode.com/problems/number-of-islands
1029,Two City Scheduling,56.1%,Easy,1.1652198458372507, https://leetcode.com/problems/two-city-scheduling
1209,Remove All Adjacent Duplicates in String II,56.9%,Medium,1.1602010262797395, https://leetcode.com/problems/remove-all-adjacent-duplicates-in-string-ii
146,LRU Cache,33.2%,Medium,1.1237841453867323, https://leetcode.com/problems/lru-cache
723,Candy Crush,69.2%,Medium,0.8391176819341255, https://leetcode.com/problems/candy-crush
253,Meeting Rooms II,45.7%,Medium,0.8140532494267123, https://leetcode.com/problems/meeting-rooms-ii
445,Add Two Numbers II,54.5%,Medium,0.5293867859741055, https://leetcode.com/problems/add-two-numbers-ii
155,Min Stack,44.5%,Easy,0.5220441452861782, https://leetcode.com/problems/min-stack
117,Populating Next Right Pointers in Each Node II,39.1%,Medium,0.4973329437215165, https://leetcode.com/problems/populating-next-right-pointers-in-each-node-ii
2,Add Two Numbers,33.9%,Medium,0.49630461312547347, https://leetcode.com/problems/add-two-numbers
380,Insert Delete GetRandom O(1),47.5%,Medium,0.48958006104635376, https://leetcode.com/problems/insert-delete-getrandom-o1
987,Vertical Order Traversal of a Binary Tree,36.6%,Medium,0.4521972578125842, https://leetcode.com/problems/vertical-order-traversal-of-a-binary-tree
1472,Design Browser History,64.6%,Medium,0.41985384556026395, https://leetcode.com/problems/design-browser-history
387,First Unique Character in a String,53.4%,Easy,0.41045073684368005, https://leetcode.com/problems/first-unique-character-in-a-string
98,Validate Binary Search Tree,27.8%,Medium,0.3538407427028572, https://leetcode.com/problems/validate-binary-search-tree
390,Elimination Game,44.5%,Medium,0.33790695709687324, https://leetcode.com/problems/elimination-game
611,Valid Triangle Number,48.4%,Medium,0.33024168687057687, https://leetcode.com/problems/valid-triangle-number
314,Binary Tree Vertical Order Traversal,45.3%,Medium,0.3133604469552722, https://leetcode.com/problems/binary-tree-vertical-order-traversal
582,Kill Process,60.8%,Medium,0.29905506262405096, https://leetcode.com/problems/kill-process
451,Sort Characters By Frequency,63.0%,Medium,0.285942725510602, https://leetcode.com/problems/sort-characters-by-frequency
42,Trapping Rain Water,48.9%,Hard,0.27385241509061997, https://leetcode.com/problems/trapping-rain-water
422,Valid Word Square,37.7%,Easy,0.2578291093020998, https://leetcode.com/problems/valid-word-square
139,Word Break,40.1%,Medium,0.24836185186023652, https://leetcode.com/problems/word-break
138,Copy List with Random Pointer,36.4%,Medium,0.2330001096609468, https://leetcode.com/problems/copy-list-with-random-pointer
1,Two Sum,45.6%,Easy,0.2242758219657857, https://leetcode.com/problems/two-sum
1223,Dice Roll Simulation,45.6%,Medium,0.2166710368085923, https://leetcode.com/problems/dice-roll-simulation
12,Integer to Roman,55.1%,Medium,0.19410560740412444, https://leetcode.com/problems/integer-to-roman
33,Search in Rotated Sorted Array,34.5%,Medium,0.1881816310890415, https://leetcode.com/problems/search-in-rotated-sorted-array
3,Longest Substring Without Repeating Characters,30.4%,Medium,0.18722008570926535, https://leetcode.com/problems/longest-substring-without-repeating-characters
797,All Paths From Source to Target,77.9%,Medium,0.18261007976444532, https://leetcode.com/problems/all-paths-from-source-to-target
1244,Design A Leaderboard,60.7%,Medium,0.17763094743610072, https://leetcode.com/problems/design-a-leaderboard
384,Shuffle an Array,52.8%,Medium,0.17247686769050424, https://leetcode.com/problems/shuffle-an-array
283,Move Zeroes,57.8%,Easy,0.16968455522475076, https://leetcode.com/problems/move-zeroes
116,Populating Next Right Pointers in Each Node,45.2%,Medium,0.16897814162027025, https://leetcode.com/problems/populating-next-right-pointers-in-each-node
242,Valid Anagram,56.9%,Easy,0.1620140669319784, https://leetcode.com/problems/valid-anagram
56,Merge Intervals,39.3%,Medium,0.1574006175650271, https://leetcode.com/problems/merge-intervals
20,Valid Parentheses,39.0%,Easy,0.15392855906669206, https://leetcode.com/problems/valid-parentheses
1047,Remove All Adjacent Duplicates In String,68.6%,Easy,0.14930349746217414, https://leetcode.com/problems/remove-all-adjacent-duplicates-in-string
5,Longest Palindromic Substring,29.5%,Medium,0.12076411655886263, https://leetcode.com/problems/longest-palindromic-substring
23,Merge k Sorted Lists,40.2%,Hard,0.11583022971243631, https://leetcode.com/problems/merge-k-sorted-lists
328,Odd Even Linked List,55.7%,Medium,0.11579884452311498, https://leetcode.com/problems/odd-even-linked-list
1188,Design Bounded Blocking Queue,70.5%,Medium,0.11030454201470608, https://leetcode.com/problems/design-bounded-blocking-queue
695,Max Area of Island,62.7%,Medium,0.10876995385464024, https://leetcode.com/problems/max-area-of-island
924,Minimize Malware Spread,42.0%,Hard,0.10821358464023274, https://leetcode.com/problems/minimize-malware-spread
128,Longest Consecutive Sequence,45.1%,Hard,0.10561054122992579, https://leetcode.com/problems/longest-consecutive-sequence
1060,Missing Element in Sorted Array,54.5%,Medium,0.1042610103244094, https://leetcode.com/problems/missing-element-in-sorted-array
658,Find K Closest Elements,40.9%,Medium,0.0995648587647672, https://leetcode.com/problems/find-k-closest-elements
41,First Missing Positive,32.0%,Hard,0.0979525363954321, https://leetcode.com/problems/first-missing-positive
463,Island Perimeter,65.7%,Easy,0.0943601559822778, https://leetcode.com/problems/island-perimeter
21,Merge Two Sorted Lists,53.5%,Easy,0.09110919511165776, https://leetcode.com/problems/merge-two-sorted-lists
652,Find Duplicate Subtrees,50.2%,Medium,0.08907963005368878, https://leetcode.com/problems/find-duplicate-subtrees
15,3Sum,26.8%,Medium,0.08893577620894672, https://leetcode.com/problems/3sum
991,Broken Calculator,45.6%,Medium,0.08515780834030685, https://leetcode.com/problems/broken-calculator
10,Regular Expression Matching,26.8%,Hard,0.08466459371201616, https://leetcode.com/problems/regular-expression-matching
332,Reconstruct Itinerary,36.7%,Medium,0.08302143328026106, https://leetcode.com/problems/reconstruct-itinerary
813,Largest Sum of Averages,49.9%,Medium,0.08201315166083516, https://leetcode.com/problems/largest-sum-of-averages
140,Word Break II,32.6%,Hard,0.07881168148917794, https://leetcode.com/problems/word-break-ii
1297,Maximum Number of Occurrences of a Substring,47.3%,Medium,0.07770898432731625, https://leetcode.com/problems/maximum-number-of-occurrences-of-a-substring
1347,Minimum Number of Steps to Make Two Strings Anagram,74.7%,Medium,0.07742472477971579, https://leetcode.com/problems/minimum-number-of-steps-to-make-two-strings-anagram
399,Evaluate Division,51.6%,Medium,0.07536521894921006, https://leetcode.com/problems/evaluate-division
214,Shortest Palindrome,29.8%,Hard,0.0753494372417868, https://leetcode.com/problems/shortest-palindrome
49,Group Anagrams,56.9%,Medium,0.07434615245733686, https://leetcode.com/problems/group-anagrams
79,Word Search,35.6%,Medium,0.06802605972322294, https://leetcode.com/problems/word-search
199,Binary Tree Right Side View,54.1%,Medium,0.06748154336946242, https://leetcode.com/problems/binary-tree-right-side-view
105,Construct Binary Tree from Preorder and Inorder Traversal,48.8%,Medium,0.06685522312111739, https://leetcode.com/problems/construct-binary-tree-from-preorder-and-inorder-traversal
1145,Binary Tree Coloring Game,51.2%,Medium,0.06592172080482424, https://leetcode.com/problems/binary-tree-coloring-game
662,Maximum Width of Binary Tree,41.0%,Medium,0.06560589270959301, https://leetcode.com/problems/maximum-width-of-binary-tree
565,Array Nesting,55.5%,Medium,0.06351340572232586, https://leetcode.com/problems/array-nesting
397,Integer Replacement,32.9%,Medium,0.06331227941432688, https://leetcode.com/problems/integer-replacement
353,Design Snake Game,34.2%,Medium,0.06053284922884233, https://leetcode.com/problems/design-snake-game
221,Maximal Square,37.7%,Medium,0.060244665945199054, https://leetcode.com/problems/maximal-square
8,String to Integer (atoi),15.4%,Medium,0.0590196151944673, https://leetcode.com/problems/string-to-integer-atoi
417,Pacific Atlantic Water Flow,41.1%,Medium,0.057523844138186606, https://leetcode.com/problems/pacific-atlantic-water-flow
78,Subsets,62.0%,Medium,0.05743033072740612, https://leetcode.com/problems/subsets
1249,Minimum Remove to Make Valid Parentheses,62.5%,Medium,0.05613145611169511, https://leetcode.com/problems/minimum-remove-to-make-valid-parentheses
752,Open the Lock,51.8%,Medium,0.05449289949671372, https://leetcode.com/problems/open-the-lock
1054,Distant Barcodes,43.2%,Medium,0.054435206555017046, https://leetcode.com/problems/distant-barcodes
44,Wildcard Matching,24.7%,Hard,0.053722215229247965, https://leetcode.com/problems/wildcard-matching
53,Maximum Subarray,46.5%,Easy,0.052816160704876255, https://leetcode.com/problems/maximum-subarray
85,Maximal Rectangle,37.7%,Hard,0.05229949940284891, https://leetcode.com/problems/maximal-rectangle
173,Binary Search Tree Iterator,56.6%,Medium,0.0519111767751893, https://leetcode.com/problems/binary-search-tree-iterator
121,Best Time to Buy and Sell Stock,50.5%,Easy,0.05179016768312839, https://leetcode.com/problems/best-time-to-buy-and-sell-stock
286,Walls and Gates,54.5%,Medium,0.05155780966485001, https://leetcode.com/problems/walls-and-gates
708,Insert into a Sorted Circular Linked List,31.6%,Medium,0.05142521180743711, https://leetcode.com/problems/insert-into-a-sorted-circular-linked-list
84,Largest Rectangle in Histogram,35.2%,Hard,0.051000241824383195, https://leetcode.com/problems/largest-rectangle-in-histogram
1312,Minimum Insertion Steps to Make a String Palindrome,58.1%,Hard,0.050261834780888255, https://leetcode.com/problems/minimum-insertion-steps-to-make-a-string-palindrome
269,Alien Dictionary,33.3%,Hard,0.04997917057465883, https://leetcode.com/problems/alien-dictionary
285,Inorder Successor in BST,40.4%,Medium,0.049569618859417214, https://leetcode.com/problems/inorder-successor-in-bst
518,Coin Change 2,50.2%,Medium,0.04919528672454412, https://leetcode.com/problems/coin-change-2
889,Construct Binary Tree from Preorder and Postorder Traversal,66.2%,Medium,0.04902942724031861, https://leetcode.com/problems/construct-binary-tree-from-preorder-and-postorder-traversal
759,Employee Free Time,66.3%,Hard,0.04861224405509378, https://leetcode.com/problems/employee-free-time
322,Coin Change,35.5%,Medium,0.04828048261319787, https://leetcode.com/problems/coin-change
88,Merge Sorted Array,39.4%,Easy,0.04710909306080898, https://leetcode.com/problems/merge-sorted-array
692,Top K Frequent Words,51.8%,Medium,0.046074115337669586, https://leetcode.com/problems/top-k-frequent-words
90,Subsets II,47.1%,Medium,0.044888321248134265, https://leetcode.com/problems/subsets-ii
102,Binary Tree Level Order Traversal,54.6%,Medium,0.04369064305418892, https://leetcode.com/problems/binary-tree-level-order-traversal
716,Max Stack,42.6%,Easy,0.042695919196489414, https://leetcode.com/problems/max-stack
229,Majority Element II,35.6%,Medium,0.04237922296886145, https://leetcode.com/problems/majority-element-ii
727,Minimum Window Subsequence,41.8%,Hard,0.04237922296886145, https://leetcode.com/problems/minimum-window-subsequence
114,Flatten Binary Tree to Linked List,49.3%,Medium,0.04234332805480797, https://leetcode.com/problems/flatten-binary-tree-to-linked-list
1155,Number of Dice Rolls With Target Sum,49.0%,Medium,0.04204262329555109, https://leetcode.com/problems/number-of-dice-rolls-with-target-sum
503,Next Greater Element II,56.5%,Medium,0.041944638750466105, https://leetcode.com/problems/next-greater-element-ii
92,Reverse Linked List II,38.8%,Medium,0.041073535208287514, https://leetcode.com/problems/reverse-linked-list-ii
292,Nim Game,54.9%,Easy,0.03996979643236185, https://leetcode.com/problems/nim-game
72,Edit Distance,44.8%,Hard,0.039482058697133414, https://leetcode.com/problems/edit-distance
993,Cousins in Binary Tree,52.0%,Easy,0.03876454345024432, https://leetcode.com/problems/cousins-in-binary-tree
22,Generate Parentheses,62.7%,Medium,0.038581724751038625, https://leetcode.com/problems/generate-parentheses
31,Next Permutation,32.6%,Medium,0.03686102113159897, https://leetcode.com/problems/next-permutation
127,Word Ladder,29.6%,Medium,0.03679590970204585, https://leetcode.com/problems/word-ladder
673,Number of Longest Increasing Subsequence,35.7%,Medium,0.036467121912812143, https://leetcode.com/problems/number-of-longest-increasing-subsequence
250,Count Univalue Subtrees,52.0%,Medium,0.036235848454044865, https://leetcode.com/problems/count-univalue-subtrees
71,Simplify Path,32.6%,Medium,0.03622126343431837, https://leetcode.com/problems/simplify-path
650,2 Keys Keyboard,49.2%,Medium,0.035910501305770864, https://leetcode.com/problems/2-keys-keyboard
125,Valid Palindrome,36.7%,Easy,0.035266657982323354, https://leetcode.com/problems/valid-palindrome
4,Median of Two Sorted Arrays,29.6%,Hard,0.034565653112280895, https://leetcode.com/problems/median-of-two-sorted-arrays
274,H-Index,36.1%,Medium,0.03364488914272426, https://leetcode.com/problems/h-index
209,Minimum Size Subarray Sum,38.2%,Medium,0.033239453928687726, https://leetcode.com/problems/minimum-size-subarray-sum
694,Number of Distinct Islands,56.0%,Medium,0.03278982282299087, https://leetcode.com/problems/number-of-distinct-islands
315,Count of Smaller Numbers After Self,41.5%,Hard,0.03200842244384717, https://leetcode.com/problems/count-of-smaller-numbers-after-self
1123,Lowest Common Ancestor of Deepest Leaves,66.8%,Medium,0.03147388037973136, https://leetcode.com/problems/lowest-common-ancestor-of-deepest-leaves
69,Sqrt(x),33.9%,Easy,0.03146892772463772, https://leetcode.com/problems/sqrtx
222,Count Complete Tree Nodes,46.8%,Medium,0.031263400619043376, https://leetcode.com/problems/count-complete-tree-nodes
460,LFU Cache,34.2%,Hard,0.030962225603966897, https://leetcode.com/problems/lfu-cache
557,Reverse Words in a String III,69.8%,Easy,0.03063547953861342, https://leetcode.com/problems/reverse-words-in-a-string-iii
160,Intersection of Two Linked Lists,40.6%,Easy,0.030246680296091687, https://leetcode.com/problems/intersection-of-two-linked-lists
846,Hand of Straights,54.2%,Medium,0.029284669545175425, https://leetcode.com/problems/hand-of-straights
413,Arithmetic Slices,57.9%,Medium,0.028431197162004825, https://leetcode.com/problems/arithmetic-slices
46,Permutations,63.5%,Medium,0.026064861710547768, https://leetcode.com/problems/permutations
136,Single Number,65.5%,Easy,0.025535113202894706, https://leetcode.com/problems/single-number
30,Substring with Concatenation of All Words,25.4%,Hard,0.02486144206532915, https://leetcode.com/problems/substring-with-concatenation-of-all-words
149,Max Points on a Line,16.9%,Hard,0.02484599858653081, https://leetcode.com/problems/max-points-on-a-line
76,Minimum Window Substring,34.6%,Hard,0.024696424154275233, https://leetcode.com/problems/minimum-window-substring
64,Minimum Path Sum,54.5%,Medium,0.024287775531756203, https://leetcode.com/problems/minimum-path-sum
395,Longest Substring with At Least K Repeating Characters,41.4%,Medium,0.024228925974379843, https://leetcode.com/problems/longest-substring-with-at-least-k-repeating-characters
348,Design Tic-Tac-Toe,54.3%,Medium,0.024214258120594613, https://leetcode.com/problems/design-tic-tac-toe
99,Recover Binary Search Tree,39.7%,Hard,0.02310905839365837, https://leetcode.com/problems/recover-binary-search-tree
13,Roman to Integer,55.7%,Easy,0.021239435742925746, https://leetcode.com/problems/roman-to-integer
101,Symmetric Tree,46.8%,Easy,0.02109782896463587, https://leetcode.com/problems/symmetric-tree
359,Logger Rate Limiter,70.8%,Easy,0.021053409197832343, https://leetcode.com/problems/logger-rate-limiter
97,Interleaving String,31.5%,Hard,0.020471543980187256, https://leetcode.com/problems/interleaving-string
424,Longest Repeating Character Replacement,47.0%,Medium,0.020461071871340063, https://leetcode.com/problems/longest-repeating-character-replacement
784,Letter Case Permutation,64.6%,Medium,0.02026411791905559, https://leetcode.com/problems/letter-case-permutation
295,Find Median from Data Stream,44.3%,Hard,0.0201349084090559, https://leetcode.com/problems/find-median-from-data-stream
721,Accounts Merge,48.8%,Medium,0.01888630262874805, https://leetcode.com/problems/accounts-merge
532,K-diff Pairs in an Array,31.6%,Easy,0.018735911057469818, https://leetcode.com/problems/k-diff-pairs-in-an-array
450,Delete Node in a BST,43.1%,Medium,0.018536211907915243, https://leetcode.com/problems/delete-node-in-a-bst
234,Palindrome Linked List,39.3%,Easy,0.01801241989645556, https://leetcode.com/problems/palindrome-linked-list
126,Word Ladder II,22.1%,Hard,0.017994187717865196, https://leetcode.com/problems/word-ladder-ii
6,ZigZag Conversion,36.3%,Medium,0.01726827253226344, https://leetcode.com/problems/zigzag-conversion
415,Add Strings,47.5%,Easy,0.016991158247219373, https://leetcode.com/problems/add-strings
402,Remove K Digits,28.4%,Medium,0.016863806052004816, https://leetcode.com/problems/remove-k-digits
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
103,Binary Tree Zigzag Level Order Traversal,48.3%,Medium,0.015272005981326173, https://leetcode.com/problems/binary-tree-zigzag-level-order-traversal
29,Divide Two Integers,16.4%,Medium,0.01517479801923515, https://leetcode.com/problems/divide-two-integers
118,Pascal's Triangle,52.5%,Easy,0.015123796918620345, https://leetcode.com/problems/pascals-triangle
1025,Divisor Game,66.3%,Easy,0.015015297119995507, https://leetcode.com/problems/divisor-game
153,Find Minimum in Rotated Sorted Array,45.1%,Medium,0.014939586916186732, https://leetcode.com/problems/find-minimum-in-rotated-sorted-array
516,Longest Palindromic Subsequence,53.2%,Medium,0.014931221774984842, https://leetcode.com/problems/longest-palindromic-subsequence
621,Task Scheduler,50.1%,Medium,0.014546980601820143, https://leetcode.com/problems/task-scheduler
301,Remove Invalid Parentheses,43.3%,Hard,0.01446679841775339, https://leetcode.com/problems/remove-invalid-parentheses
109,Convert Sorted List to Binary Search Tree,47.7%,Medium,0.014440684154794336, https://leetcode.com/problems/convert-sorted-list-to-binary-search-tree
912,Sort an Array,63.9%,Medium,0.01443026482902881, https://leetcode.com/problems/sort-an-array
202,Happy Number,50.4%,Easy,0.014045174703047602, https://leetcode.com/problems/happy-number
404,Sum of Left Leaves,50.9%,Easy,0.013981353230340547, https://leetcode.com/problems/sum-of-left-leaves
24,Swap Nodes in Pairs,50.4%,Medium,0.013945066390122038, https://leetcode.com/problems/swap-nodes-in-pairs
443,String Compression,41.3%,Easy,0.01390843004613198, https://leetcode.com/problems/string-compression
724,Find Pivot Index,44.0%,Easy,0.013850636933899008, https://leetcode.com/problems/find-pivot-index
329,Longest Increasing Path in a Matrix,43.4%,Hard,0.013400535537482126, https://leetcode.com/problems/longest-increasing-path-in-a-matrix
347,Top K Frequent Elements,61.2%,Medium,0.01329217620893675, https://leetcode.com/problems/top-k-frequent-elements
219,Contains Duplicate II,37.7%,Easy,0.01276748910345265, https://leetcode.com/problems/contains-duplicate-ii
852,Peak Index in a Mountain Array,71.6%,Easy,0.012618463959211509, https://leetcode.com/problems/peak-index-in-a-mountain-array
152,Maximum Product Subarray,31.7%,Medium,0.012534983069696118, https://leetcode.com/problems/maximum-product-subarray
112,Path Sum,41.2%,Easy,0.012265076074932503, https://leetcode.com/problems/path-sum
437,Path Sum III,47.2%,Medium,0.012128711446614806, https://leetcode.com/problems/path-sum-iii
9,Palindrome Number,48.4%,Easy,0.01209661684713821, https://leetcode.com/problems/palindrome-number
273,Integer to English Words,27.1%,Hard,0.012081089250339716, https://leetcode.com/problems/integer-to-english-words
81,Search in Rotated Sorted Array II,33.0%,Medium,0.011689203815677656, https://leetcode.com/problems/search-in-rotated-sorted-array-ii
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
232,Implement Queue using Stacks,49.6%,Easy,0.011242389348933884, https://leetcode.com/problems/implement-queue-using-stacks
171,Excel Sheet Column Number,55.9%,Easy,0.011195191092491645, https://leetcode.com/problems/excel-sheet-column-number
207,Course Schedule,43.1%,Medium,0.01113459480911671, https://leetcode.com/problems/course-schedule
268,Missing Number,51.7%,Easy,0.010947682628191997, https://leetcode.com/problems/missing-number
338,Counting Bits,69.5%,Medium,0.01088446119842327, https://leetcode.com/problems/counting-bits
236,Lowest Common Ancestor of a Binary Tree,45.7%,Medium,0.010575891759058162, https://leetcode.com/problems/lowest-common-ancestor-of-a-binary-tree
572,Subtree of Another Tree,44.1%,Easy,0.01045487829263024, https://leetcode.com/problems/subtree-of-another-tree
47,Permutations II,46.4%,Medium,0.009673594178378379, https://leetcode.com/problems/permutations-ii
40,Combination Sum II,48.2%,Medium,0.009578617297069781, https://leetcode.com/problems/combination-sum-ii
34,Find First and Last Position of Element in Sorted Array,36.2%,Medium,0.009531951009811851, https://leetcode.com/problems/find-first-and-last-position-of-element-in-sorted-array
96,Unique Binary Search Trees,52.9%,Medium,0.009242209964820877, https://leetcode.com/problems/unique-binary-search-trees
392,Is Subsequence,49.2%,Easy,0.009088906012344746, https://leetcode.com/problems/is-subsequence
215,Kth Largest Element in an Array,55.4%,Medium,0.008759180089881562, https://leetcode.com/problems/kth-largest-element-in-an-array
63,Unique Paths II,34.6%,Medium,0.008712753874961187, https://leetcode.com/problems/unique-paths-ii
198,House Robber,42.0%,Easy,0.008434914115059812, https://leetcode.com/problems/house-robber
617,Merge Two Binary Trees,74.1%,Easy,0.008262802639833214, https://leetcode.com/problems/merge-two-binary-trees
239,Sliding Window Maximum,43.0%,Hard,0.007898935224534491, https://leetcode.com/problems/sliding-window-maximum
122,Best Time to Buy and Sell Stock II,57.0%,Easy,0.007532046655581962, https://leetcode.com/problems/best-time-to-buy-and-sell-stock-ii
16,3Sum Closest,46.0%,Medium,0.0075259057003469075, https://leetcode.com/problems/3sum-closest
14,Longest Common Prefix,35.4%,Easy,0.00745530292090591, https://leetcode.com/problems/longest-common-prefix
7,Reverse Integer,25.8%,Easy,0.007424283556794391, https://leetcode.com/problems/reverse-integer
176,Second Highest Salary,31.6%,Easy,0.007393749024938284, https://leetcode.com/problems/second-highest-salary
344,Reverse String,68.5%,Easy,0.00734157796234515, https://leetcode.com/problems/reverse-string
36,Valid Sudoku,48.7%,Medium,0.007258242715805398, https://leetcode.com/problems/valid-sudoku
349,Intersection of Two Arrays,62.5%,Easy,0.00725034896230682, https://leetcode.com/problems/intersection-of-two-arrays
412,Fizz Buzz,62.3%,Easy,0.007165921026143679, https://leetcode.com/problems/fizz-buzz
110,Balanced Binary Tree,43.5%,Easy,0.007027435807456887, https://leetcode.com/problems/balanced-binary-tree
19,Remove Nth Node From End of List,35.2%,Medium,0.0069087555063702365, https://leetcode.com/problems/remove-nth-node-from-end-of-list
11,Container With Most Water,50.8%,Medium,0.006889188300412141, https://leetcode.com/problems/container-with-most-water
448,Find All Numbers Disappeared in an Array,55.9%,Easy,0.006863444924982415, https://leetcode.com/problems/find-all-numbers-disappeared-in-an-array
54,Spiral Matrix,34.1%,Medium,0.0065941551175130245, https://leetcode.com/problems/spiral-matrix
203,Remove Linked List Elements,38.6%,Easy,0.006479067005887776, https://leetcode.com/problems/remove-linked-list-elements
162,Find Peak Element,43.3%,Medium,0.006350235659345837, https://leetcode.com/problems/find-peak-element
230,Kth Smallest Element in a BST,60.2%,Medium,0.0063361529894967236, https://leetcode.com/problems/kth-smallest-element-in-a-bst
104,Maximum Depth of Binary Tree,66.0%,Easy,0.006261761223976207, https://leetcode.com/problems/maximum-depth-of-binary-tree
144,Binary Tree Preorder Traversal,55.7%,Medium,0.0060975798681185, https://leetcode.com/problems/binary-tree-preorder-traversal
91,Decode Ways,24.7%,Medium,0.005968385368349129, https://leetcode.com/problems/decode-ways
39,Combination Sum,56.1%,Medium,0.005715934396440999, https://leetcode.com/problems/combination-sum
50,Pow(x;n),30.3%,Medium,0.0055950070772402055, https://leetcode.com/problems/powx-n
108,Convert Sorted Array to Binary Search Tree,57.9%,Easy,0.005554027051374908, https://leetcode.com/problems/convert-sorted-array-to-binary-search-tree
124,Binary Tree Maximum Path Sum,34.3%,Hard,0.005531752454833179, https://leetcode.com/problems/binary-tree-maximum-path-sum
287,Find the Duplicate Number,55.5%,Medium,0.005501320434837602, https://leetcode.com/problems/find-the-duplicate-number
543,Diameter of Binary Tree,48.4%,Easy,0.005305755914149804, https://leetcode.com/problems/diameter-of-binary-tree
237,Delete Node in a Linked List,63.8%,Easy,0.005144705881237697, https://leetcode.com/problems/delete-node-in-a-linked-list
55,Jump Game,34.6%,Medium,0.005022612266291382, https://leetcode.com/problems/jump-game
75,Sort Colors,47.3%,Medium,0.004992521603120986, https://leetcode.com/problems/sort-colors
62,Unique Paths,54.1%,Medium,0.004621080312067025, https://leetcode.com/problems/unique-paths
17,Letter Combinations of a Phone Number,46.8%,Medium,0.0044018999217624675, https://leetcode.com/problems/letter-combinations-of-a-phone-number
26,Remove Duplicates from Sorted Array,45.1%,Easy,0.004385117141850828, https://leetcode.com/problems/remove-duplicates-from-sorted-array
28,Implement strStr(),34.5%,Easy,0.003943222775040032, https://leetcode.com/problems/implement-strstr
238,Product of Array Except Self,60.1%,Medium,0.003930436424724545, https://leetcode.com/problems/product-of-array-except-self
977,Squares of a Sorted Array,72.1%,Easy,0.003891055492966611, https://leetcode.com/problems/squares-of-a-sorted-array
27,Remove Element,48.2%,Easy,0.0035524016043678225, https://leetcode.com/problems/remove-element
94,Binary Tree Inorder Traversal,63.3%,Medium,0.0033551449021403577, https://leetcode.com/problems/binary-tree-inorder-traversal
1480,Running Sum of 1d Array,90.5%,Easy,0.0026196884456014947, https://leetcode.com/problems/running-sum-of-1d-array
206,Reverse Linked List,62.5%,Easy,0.0023398665252948926, https://leetcode.com/problems/reverse-linked-list
258,Add Digits,57.6%,Easy,0.0020686809197766587, https://leetcode.com/problems/add-digits
70,Climbing Stairs,47.8%,Easy,0.0015084665529624085, https://leetcode.com/problems/climbing-stairs
100,Same Tree,53.4%,Easy,0.0014080047382258295, https://leetcode.com/problems/same-tree
ID,Title,Acceptance,Difficulty,Frequency,Leetcode Question Link
1396,Design Underground System,64.7%,Medium,2.155218657865939, https://leetcode.com/problems/design-underground-system
1169,Invalid Transactions,31.2%,Medium,1.8705521944133323, https://leetcode.com/problems/invalid-transactions
430,Flatten a Multilevel Doubly Linked List,55.1%,Medium,1.8386285548491934, https://leetcode.com/problems/flatten-a-multilevel-doubly-linked-list
394,Decode String,50.0%,Medium,1.5539620913965866, https://leetcode.com/problems/decode-string
1274,Number of Ships in a Rectangle,66.3%,Hard,1.5168632132045061, https://leetcode.com/problems/number-of-ships-in-a-rectangle
200,Number of Islands,46.8%,Medium,1.2569671029144711, https://leetcode.com/problems/number-of-islands
1029,Two City Scheduling,56.1%,Easy,1.1652198458372507, https://leetcode.com/problems/two-city-scheduling
1209,Remove All Adjacent Duplicates in String II,56.9%,Medium,1.1602010262797395, https://leetcode.com/problems/remove-all-adjacent-duplicates-in-string-ii
146,LRU Cache,33.2%,Medium,1.1237841453867323, https://leetcode.com/problems/lru-cache
723,Candy Crush,69.2%,Medium,0.8391176819341255, https://leetcode.com/problems/candy-crush
253,Meeting Rooms II,45.7%,Medium,0.8140532494267123, https://leetcode.com/problems/meeting-rooms-ii
445,Add Two Numbers II,54.5%,Medium,0.5293867859741055, https://leetcode.com/problems/add-two-numbers-ii
155,Min Stack,44.5%,Easy,0.5220441452861782, https://leetcode.com/problems/min-stack
117,Populating Next Right Pointers in Each Node II,39.1%,Medium,0.4973329437215165, https://leetcode.com/problems/populating-next-right-pointers-in-each-node-ii
2,Add Two Numbers,33.9%,Medium,0.49630461312547347, https://leetcode.com/problems/add-two-numbers
380,Insert Delete GetRandom O(1),47.5%,Medium,0.48958006104635376, https://leetcode.com/problems/insert-delete-getrandom-o1
987,Vertical Order Traversal of a Binary Tree,36.6%,Medium,0.4521972578125842, https://leetcode.com/problems/vertical-order-traversal-of-a-binary-tree
1472,Design Browser History,64.6%,Medium,0.41985384556026395, https://leetcode.com/problems/design-browser-history
387,First Unique Character in a String,53.4%,Easy,0.41045073684368005, https://leetcode.com/problems/first-unique-character-in-a-string
98,Validate Binary Search Tree,27.8%,Medium,0.3538407427028572, https://leetcode.com/problems/validate-binary-search-tree
390,Elimination Game,44.5%,Medium,0.33790695709687324, https://leetcode.com/problems/elimination-game
611,Valid Triangle Number,48.4%,Medium,0.33024168687057687, https://leetcode.com/problems/valid-triangle-number
314,Binary Tree Vertical Order Traversal,45.3%,Medium,0.3133604469552722, https://leetcode.com/problems/binary-tree-vertical-order-traversal
582,Kill Process,60.8%,Medium,0.29905506262405096, https://leetcode.com/problems/kill-process
451,Sort Characters By Frequency,63.0%,Medium,0.285942725510602, https://leetcode.com/problems/sort-characters-by-frequency
42,Trapping Rain Water,48.9%,Hard,0.27385241509061997, https://leetcode.com/problems/trapping-rain-water
422,Valid Word Square,37.7%,Easy,0.2578291093020998, https://leetcode.com/problems/valid-word-square
139,Word Break,40.1%,Medium,0.24836185186023652, https://leetcode.com/problems/word-break
138,Copy List with Random Pointer,36.4%,Medium,0.2330001096609468, https://leetcode.com/problems/copy-list-with-random-pointer
1,Two Sum,45.6%,Easy,0.2242758219657857, https://leetcode.com/problems/two-sum
1223,Dice Roll Simulation,45.6%,Medium,0.2166710368085923, https://leetcode.com/problems/dice-roll-simulation
12,Integer to Roman,55.1%,Medium,0.19410560740412444, https://leetcode.com/problems/integer-to-roman
33,Search in Rotated Sorted Array,34.5%,Medium,0.1881816310890415, https://leetcode.com/problems/search-in-rotated-sorted-array
3,Longest Substring Without Repeating Characters,30.4%,Medium,0.18722008570926535, https://leetcode.com/problems/longest-substring-without-repeating-characters
797,All Paths From Source to Target,77.9%,Medium,0.18261007976444532, https://leetcode.com/problems/all-paths-from-source-to-target
1244,Design A Leaderboard,60.7%,Medium,0.17763094743610072, https://leetcode.com/problems/design-a-leaderboard
384,Shuffle an Array,52.8%,Medium,0.17247686769050424, https://leetcode.com/problems/shuffle-an-array
283,Move Zeroes,57.8%,Easy,0.16968455522475076, https://leetcode.com/problems/move-zeroes
116,Populating Next Right Pointers in Each Node,45.2%,Medium,0.16897814162027025, https://leetcode.com/problems/populating-next-right-pointers-in-each-node
242,Valid Anagram,56.9%,Easy,0.1620140669319784, https://leetcode.com/problems/valid-anagram
56,Merge Intervals,39.3%,Medium,0.1574006175650271, https://leetcode.com/problems/merge-intervals
20,Valid Parentheses,39.0%,Easy,0.15392855906669206, https://leetcode.com/problems/valid-parentheses
1047,Remove All Adjacent Duplicates In String,68.6%,Easy,0.14930349746217414, https://leetcode.com/problems/remove-all-adjacent-duplicates-in-string
5,Longest Palindromic Substring,29.5%,Medium,0.12076411655886263, https://leetcode.com/problems/longest-palindromic-substring
23,Merge k Sorted Lists,40.2%,Hard,0.11583022971243631, https://leetcode.com/problems/merge-k-sorted-lists
328,Odd Even Linked List,55.7%,Medium,0.11579884452311498, https://leetcode.com/problems/odd-even-linked-list
1188,Design Bounded Blocking Queue,70.5%,Medium,0.11030454201470608, https://leetcode.com/problems/design-bounded-blocking-queue
695,Max Area of Island,62.7%,Medium,0.10876995385464024, https://leetcode.com/problems/max-area-of-island
924,Minimize Malware Spread,42.0%,Hard,0.10821358464023274, https://leetcode.com/problems/minimize-malware-spread
128,Longest Consecutive Sequence,45.1%,Hard,0.10561054122992579, https://leetcode.com/problems/longest-consecutive-sequence
1060,Missing Element in Sorted Array,54.5%,Medium,0.1042610103244094, https://leetcode.com/problems/missing-element-in-sorted-array
658,Find K Closest Elements,40.9%,Medium,0.0995648587647672, https://leetcode.com/problems/find-k-closest-elements
41,First Missing Positive,32.0%,Hard,0.0979525363954321, https://leetcode.com/problems/first-missing-positive
463,Island Perimeter,65.7%,Easy,0.0943601559822778, https://leetcode.com/problems/island-perimeter
21,Merge Two Sorted Lists,53.5%,Easy,0.09110919511165776, https://leetcode.com/problems/merge-two-sorted-lists
652,Find Duplicate Subtrees,50.2%,Medium,0.08907963005368878, https://leetcode.com/problems/find-duplicate-subtrees
15,3Sum,26.8%,Medium,0.08893577620894672, https://leetcode.com/problems/3sum
991,Broken Calculator,45.6%,Medium,0.08515780834030685, https://leetcode.com/problems/broken-calculator
10,Regular Expression Matching,26.8%,Hard,0.08466459371201616, https://leetcode.com/problems/regular-expression-matching
332,Reconstruct Itinerary,36.7%,Medium,0.08302143328026106, https://leetcode.com/problems/reconstruct-itinerary
813,Largest Sum of Averages,49.9%,Medium,0.08201315166083516, https://leetcode.com/problems/largest-sum-of-averages
140,Word Break II,32.6%,Hard,0.07881168148917794, https://leetcode.com/problems/word-break-ii
1297,Maximum Number of Occurrences of a Substring,47.3%,Medium,0.07770898432731625, https://leetcode.com/problems/maximum-number-of-occurrences-of-a-substring
1347,Minimum Number of Steps to Make Two Strings Anagram,74.7%,Medium,0.07742472477971579, https://leetcode.com/problems/minimum-number-of-steps-to-make-two-strings-anagram
399,Evaluate Division,51.6%,Medium,0.07536521894921006, https://leetcode.com/problems/evaluate-division
214,Shortest Palindrome,29.8%,Hard,0.0753494372417868, https://leetcode.com/problems/shortest-palindrome
49,Group Anagrams,56.9%,Medium,0.07434615245733686, https://leetcode.com/problems/group-anagrams
79,Word Search,35.6%,Medium,0.06802605972322294, https://leetcode.com/problems/word-search
199,Binary Tree Right Side View,54.1%,Medium,0.06748154336946242, https://leetcode.com/problems/binary-tree-right-side-view
105,Construct Binary Tree from Preorder and Inorder Traversal,48.8%,Medium,0.06685522312111739, https://leetcode.com/problems/construct-binary-tree-from-preorder-and-inorder-traversal
1145,Binary Tree Coloring Game,51.2%,Medium,0.06592172080482424, https://leetcode.com/problems/binary-tree-coloring-game
662,Maximum Width of Binary Tree,41.0%,Medium,0.06560589270959301, https://leetcode.com/problems/maximum-width-of-binary-tree
565,Array Nesting,55.5%,Medium,0.06351340572232586, https://leetcode.com/problems/array-nesting
397,Integer Replacement,32.9%,Medium,0.06331227941432688, https://leetcode.com/problems/integer-replacement
353,Design Snake Game,34.2%,Medium,0.06053284922884233, https://leetcode.com/problems/design-snake-game
221,Maximal Square,37.7%,Medium,0.060244665945199054, https://leetcode.com/problems/maximal-square
8,String to Integer (atoi),15.4%,Medium,0.0590196151944673, https://leetcode.com/problems/string-to-integer-atoi
417,Pacific Atlantic Water Flow,41.1%,Medium,0.057523844138186606, https://leetcode.com/problems/pacific-atlantic-water-flow
78,Subsets,62.0%,Medium,0.05743033072740612, https://leetcode.com/problems/subsets
1249,Minimum Remove to Make Valid Parentheses,62.5%,Medium,0.05613145611169511, https://leetcode.com/problems/minimum-remove-to-make-valid-parentheses
752,Open the Lock,51.8%,Medium,0.05449289949671372, https://leetcode.com/problems/open-the-lock
1054,Distant Barcodes,43.2%,Medium,0.054435206555017046, https://leetcode.com/problems/distant-barcodes
44,Wildcard Matching,24.7%,Hard,0.053722215229247965, https://leetcode.com/problems/wildcard-matching
53,Maximum Subarray,46.5%,Easy,0.052816160704876255, https://leetcode.com/problems/maximum-subarray
85,Maximal Rectangle,37.7%,Hard,0.05229949940284891, https://leetcode.com/problems/maximal-rectangle
173,Binary Search Tree Iterator,56.6%,Medium,0.0519111767751893, https://leetcode.com/problems/binary-search-tree-iterator
121,Best Time to Buy and Sell Stock,50.5%,Easy,0.05179016768312839, https://leetcode.com/problems/best-time-to-buy-and-sell-stock
286,Walls and Gates,54.5%,Medium,0.05155780966485001, https://leetcode.com/problems/walls-and-gates
708,Insert into a Sorted Circular Linked List,31.6%,Medium,0.05142521180743711, https://leetcode.com/problems/insert-into-a-sorted-circular-linked-list
84,Largest Rectangle in Histogram,35.2%,Hard,0.051000241824383195, https://leetcode.com/problems/largest-rectangle-in-histogram
1312,Minimum Insertion Steps to Make a String Palindrome,58.1%,Hard,0.050261834780888255, https://leetcode.com/problems/minimum-insertion-steps-to-make-a-string-palindrome
269,Alien Dictionary,33.3%,Hard,0.04997917057465883, https://leetcode.com/problems/alien-dictionary
285,Inorder Successor in BST,40.4%,Medium,0.049569618859417214, https://leetcode.com/problems/inorder-successor-in-bst
518,Coin Change 2,50.2%,Medium,0.04919528672454412, https://leetcode.com/problems/coin-change-2
889,Construct Binary Tree from Preorder and Postorder Traversal,66.2%,Medium,0.04902942724031861, https://leetcode.com/problems/construct-binary-tree-from-preorder-and-postorder-traversal
759,Employee Free Time,66.3%,Hard,0.04861224405509378, https://leetcode.com/problems/employee-free-time
322,Coin Change,35.5%,Medium,0.04828048261319787, https://leetcode.com/problems/coin-change
88,Merge Sorted Array,39.4%,Easy,0.04710909306080898, https://leetcode.com/problems/merge-sorted-array
692,Top K Frequent Words,51.8%,Medium,0.046074115337669586, https://leetcode.com/problems/top-k-frequent-words
90,Subsets II,47.1%,Medium,0.044888321248134265, https://leetcode.com/problems/subsets-ii
102,Binary Tree Level Order Traversal,54.6%,Medium,0.04369064305418892, https://leetcode.com/problems/binary-tree-level-order-traversal
716,Max Stack,42.6%,Easy,0.042695919196489414, https://leetcode.com/problems/max-stack
229,Majority Element II,35.6%,Medium,0.04237922296886145, https://leetcode.com/problems/majority-element-ii
727,Minimum Window Subsequence,41.8%,Hard,0.04237922296886145, https://leetcode.com/problems/minimum-window-subsequence
114,Flatten Binary Tree to Linked List,49.3%,Medium,0.04234332805480797, https://leetcode.com/problems/flatten-binary-tree-to-linked-list
1155,Number of Dice Rolls With Target Sum,49.0%,Medium,0.04204262329555109, https://leetcode.com/problems/number-of-dice-rolls-with-target-sum
503,Next Greater Element II,56.5%,Medium,0.041944638750466105, https://leetcode.com/problems/next-greater-element-ii
92,Reverse Linked List II,38.8%,Medium,0.041073535208287514, https://leetcode.com/problems/reverse-linked-list-ii
292,Nim Game,54.9%,Easy,0.03996979643236185, https://leetcode.com/problems/nim-game
72,Edit Distance,44.8%,Hard,0.039482058697133414, https://leetcode.com/problems/edit-distance
993,Cousins in Binary Tree,52.0%,Easy,0.03876454345024432, https://leetcode.com/problems/cousins-in-binary-tree
22,Generate Parentheses,62.7%,Medium,0.038581724751038625, https://leetcode.com/problems/generate-parentheses
31,Next Permutation,32.6%,Medium,0.03686102113159897, https://leetcode.com/problems/next-permutation
127,Word Ladder,29.6%,Medium,0.03679590970204585, https://leetcode.com/problems/word-ladder
673,Number of Longest Increasing Subsequence,35.7%,Medium,0.036467121912812143, https://leetcode.com/problems/number-of-longest-increasing-subsequence
250,Count Univalue Subtrees,52.0%,Medium,0.036235848454044865, https://leetcode.com/problems/count-univalue-subtrees
71,Simplify Path,32.6%,Medium,0.03622126343431837, https://leetcode.com/problems/simplify-path
650,2 Keys Keyboard,49.2%,Medium,0.035910501305770864, https://leetcode.com/problems/2-keys-keyboard
125,Valid Palindrome,36.7%,Easy,0.035266657982323354, https://leetcode.com/problems/valid-palindrome
4,Median of Two Sorted Arrays,29.6%,Hard,0.034565653112280895, https://leetcode.com/problems/median-of-two-sorted-arrays
274,H-Index,36.1%,Medium,0.03364488914272426, https://leetcode.com/problems/h-index
209,Minimum Size Subarray Sum,38.2%,Medium,0.033239453928687726, https://leetcode.com/problems/minimum-size-subarray-sum
694,Number of Distinct Islands,56.0%,Medium,0.03278982282299087, https://leetcode.com/problems/number-of-distinct-islands
315,Count of Smaller Numbers After Self,41.5%,Hard,0.03200842244384717, https://leetcode.com/problems/count-of-smaller-numbers-after-self
1123,Lowest Common Ancestor of Deepest Leaves,66.8%,Medium,0.03147388037973136, https://leetcode.com/problems/lowest-common-ancestor-of-deepest-leaves
69,Sqrt(x),33.9%,Easy,0.03146892772463772, https://leetcode.com/problems/sqrtx
222,Count Complete Tree Nodes,46.8%,Medium,0.031263400619043376, https://leetcode.com/problems/count-complete-tree-nodes
460,LFU Cache,34.2%,Hard,0.030962225603966897, https://leetcode.com/problems/lfu-cache
557,Reverse Words in a String III,69.8%,Easy,0.03063547953861342, https://leetcode.com/problems/reverse-words-in-a-string-iii
160,Intersection of Two Linked Lists,40.6%,Easy,0.030246680296091687, https://leetcode.com/problems/intersection-of-two-linked-lists
846,Hand of Straights,54.2%,Medium,0.029284669545175425, https://leetcode.com/problems/hand-of-straights
413,Arithmetic Slices,57.9%,Medium,0.028431197162004825, https://leetcode.com/problems/arithmetic-slices
46,Permutations,63.5%,Medium,0.026064861710547768, https://leetcode.com/problems/permutations
136,Single Number,65.5%,Easy,0.025535113202894706, https://leetcode.com/problems/single-number
30,Substring with Concatenation of All Words,25.4%,Hard,0.02486144206532915, https://leetcode.com/problems/substring-with-concatenation-of-all-words
149,Max Points on a Line,16.9%,Hard,0.02484599858653081, https://leetcode.com/problems/max-points-on-a-line
76,Minimum Window Substring,34.6%,Hard,0.024696424154275233, https://leetcode.com/problems/minimum-window-substring
64,Minimum Path Sum,54.5%,Medium,0.024287775531756203, https://leetcode.com/problems/minimum-path-sum
395,Longest Substring with At Least K Repeating Characters,41.4%,Medium,0.024228925974379843, https://leetcode.com/problems/longest-substring-with-at-least-k-repeating-characters
348,Design Tic-Tac-Toe,54.3%,Medium,0.024214258120594613, https://leetcode.com/problems/design-tic-tac-toe
99,Recover Binary Search Tree,39.7%,Hard,0.02310905839365837, https://leetcode.com/problems/recover-binary-search-tree
13,Roman to Integer,55.7%,Easy,0.021239435742925746, https://leetcode.com/problems/roman-to-integer
101,Symmetric Tree,46.8%,Easy,0.02109782896463587, https://leetcode.com/problems/symmetric-tree
359,Logger Rate Limiter,70.8%,Easy,0.021053409197832343, https://leetcode.com/problems/logger-rate-limiter
97,Interleaving String,31.5%,Hard,0.020471543980187256, https://leetcode.com/problems/interleaving-string
424,Longest Repeating Character Replacement,47.0%,Medium,0.020461071871340063, https://leetcode.com/problems/longest-repeating-character-replacement
784,Letter Case Permutation,64.6%,Medium,0.02026411791905559, https://leetcode.com/problems/letter-case-permutation
295,Find Median from Data Stream,44.3%,Hard,0.0201349084090559, https://leetcode.com/problems/find-median-from-data-stream
721,Accounts Merge,48.8%,Medium,0.01888630262874805, https://leetcode.com/problems/accounts-merge
532,K-diff Pairs in an Array,31.6%,Easy,0.018735911057469818, https://leetcode.com/problems/k-diff-pairs-in-an-array
450,Delete Node in a BST,43.1%,Medium,0.018536211907915243, https://leetcode.com/problems/delete-node-in-a-bst
234,Palindrome Linked List,39.3%,Easy,0.01801241989645556, https://leetcode.com/problems/palindrome-linked-list
126,Word Ladder II,22.1%,Hard,0.017994187717865196, https://leetcode.com/problems/word-ladder-ii
6,ZigZag Conversion,36.3%,Medium,0.01726827253226344, https://leetcode.com/problems/zigzag-conversion
415,Add Strings,47.5%,Easy,0.016991158247219373, https://leetcode.com/problems/add-strings
402,Remove K Digits,28.4%,Medium,0.016863806052004816, https://leetcode.com/problems/remove-k-digits
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
103,Binary Tree Zigzag Level Order Traversal,48.3%,Medium,0.015272005981326173, https://leetcode.com/problems/binary-tree-zigzag-level-order-traversal
29,Divide Two Integers,16.4%,Medium,0.01517479801923515, https://leetcode.com/problems/divide-two-integers
118,Pascal's Triangle,52.5%,Easy,0.015123796918620345, https://leetcode.com/problems/pascals-triangle
1025,Divisor Game,66.3%,Easy,0.015015297119995507, https://leetcode.com/problems/divisor-game
153,Find Minimum in Rotated Sorted Array,45.1%,Medium,0.014939586916186732, https://leetcode.com/problems/find-minimum-in-rotated-sorted-array
516,Longest Palindromic Subsequence,53.2%,Medium,0.014931221774984842, https://leetcode.com/problems/longest-palindromic-subsequence
621,Task Scheduler,50.1%,Medium,0.014546980601820143, https://leetcode.com/problems/task-scheduler
301,Remove Invalid Parentheses,43.3%,Hard,0.01446679841775339, https://leetcode.com/problems/remove-invalid-parentheses
109,Convert Sorted List to Binary Search Tree,47.7%,Medium,0.014440684154794336, https://leetcode.com/problems/convert-sorted-list-to-binary-search-tree
912,Sort an Array,63.9%,Medium,0.01443026482902881, https://leetcode.com/problems/sort-an-array
202,Happy Number,50.4%,Easy,0.014045174703047602, https://leetcode.com/problems/happy-number
404,Sum of Left Leaves,50.9%,Easy,0.013981353230340547, https://leetcode.com/problems/sum-of-left-leaves
24,Swap Nodes in Pairs,50.4%,Medium,0.013945066390122038, https://leetcode.com/problems/swap-nodes-in-pairs
443,String Compression,41.3%,Easy,0.01390843004613198, https://leetcode.com/problems/string-compression
724,Find Pivot Index,44.0%,Easy,0.013850636933899008, https://leetcode.com/problems/find-pivot-index
329,Longest Increasing Path in a Matrix,43.4%,Hard,0.013400535537482126, https://leetcode.com/problems/longest-increasing-path-in-a-matrix
347,Top K Frequent Elements,61.2%,Medium,0.01329217620893675, https://leetcode.com/problems/top-k-frequent-elements
219,Contains Duplicate II,37.7%,Easy,0.01276748910345265, https://leetcode.com/problems/contains-duplicate-ii
852,Peak Index in a Mountain Array,71.6%,Easy,0.012618463959211509, https://leetcode.com/problems/peak-index-in-a-mountain-array
152,Maximum Product Subarray,31.7%,Medium,0.012534983069696118, https://leetcode.com/problems/maximum-product-subarray
112,Path Sum,41.2%,Easy,0.012265076074932503, https://leetcode.com/problems/path-sum
437,Path Sum III,47.2%,Medium,0.012128711446614806, https://leetcode.com/problems/path-sum-iii
9,Palindrome Number,48.4%,Easy,0.01209661684713821, https://leetcode.com/problems/palindrome-number
273,Integer to English Words,27.1%,Hard,0.012081089250339716, https://leetcode.com/problems/integer-to-english-words
81,Search in Rotated Sorted Array II,33.0%,Medium,0.011689203815677656, https://leetcode.com/problems/search-in-rotated-sorted-array-ii
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
232,Implement Queue using Stacks,49.6%,Easy,0.011242389348933884, https://leetcode.com/problems/implement-queue-using-stacks
171,Excel Sheet Column Number,55.9%,Easy,0.011195191092491645, https://leetcode.com/problems/excel-sheet-column-number
207,Course Schedule,43.1%,Medium,0.01113459480911671, https://leetcode.com/problems/course-schedule
268,Missing Number,51.7%,Easy,0.010947682628191997, https://leetcode.com/problems/missing-number
338,Counting Bits,69.5%,Medium,0.01088446119842327, https://leetcode.com/problems/counting-bits
236,Lowest Common Ancestor of a Binary Tree,45.7%,Medium,0.010575891759058162, https://leetcode.com/problems/lowest-common-ancestor-of-a-binary-tree
572,Subtree of Another Tree,44.1%,Easy,0.01045487829263024, https://leetcode.com/problems/subtree-of-another-tree
47,Permutations II,46.4%,Medium,0.009673594178378379, https://leetcode.com/problems/permutations-ii
40,Combination Sum II,48.2%,Medium,0.009578617297069781, https://leetcode.com/problems/combination-sum-ii
34,Find First and Last Position of Element in Sorted Array,36.2%,Medium,0.009531951009811851, https://leetcode.com/problems/find-first-and-last-position-of-element-in-sorted-array
96,Unique Binary Search Trees,52.9%,Medium,0.009242209964820877, https://leetcode.com/problems/unique-binary-search-trees
392,Is Subsequence,49.2%,Easy,0.009088906012344746, https://leetcode.com/problems/is-subsequence
215,Kth Largest Element in an Array,55.4%,Medium,0.008759180089881562, https://leetcode.com/problems/kth-largest-element-in-an-array
63,Unique Paths II,34.6%,Medium,0.008712753874961187, https://leetcode.com/problems/unique-paths-ii
198,House Robber,42.0%,Easy,0.008434914115059812, https://leetcode.com/problems/house-robber
617,Merge Two Binary Trees,74.1%,Easy,0.008262802639833214, https://leetcode.com/problems/merge-two-binary-trees
239,Sliding Window Maximum,43.0%,Hard,0.007898935224534491, https://leetcode.com/problems/sliding-window-maximum
122,Best Time to Buy and Sell Stock II,57.0%,Easy,0.007532046655581962, https://leetcode.com/problems/best-time-to-buy-and-sell-stock-ii
16,3Sum Closest,46.0%,Medium,0.0075259057003469075, https://leetcode.com/problems/3sum-closest
14,Longest Common Prefix,35.4%,Easy,0.00745530292090591, https://leetcode.com/problems/longest-common-prefix
7,Reverse Integer,25.8%,Easy,0.007424283556794391, https://leetcode.com/problems/reverse-integer
176,Second Highest Salary,31.6%,Easy,0.007393749024938284, https://leetcode.com/problems/second-highest-salary
344,Reverse String,68.5%,Easy,0.00734157796234515, https://leetcode.com/problems/reverse-string
36,Valid Sudoku,48.7%,Medium,0.007258242715805398, https://leetcode.com/problems/valid-sudoku
349,Intersection of Two Arrays,62.5%,Easy,0.00725034896230682, https://leetcode.com/problems/intersection-of-two-arrays
412,Fizz Buzz,62.3%,Easy,0.007165921026143679, https://leetcode.com/problems/fizz-buzz
110,Balanced Binary Tree,43.5%,Easy,0.007027435807456887, https://leetcode.com/problems/balanced-binary-tree
19,Remove Nth Node From End of List,35.2%,Medium,0.0069087555063702365, https://leetcode.com/problems/remove-nth-node-from-end-of-list
11,Container With Most Water,50.8%,Medium,0.006889188300412141, https://leetcode.com/problems/container-with-most-water
448,Find All Numbers Disappeared in an Array,55.9%,Easy,0.006863444924982415, https://leetcode.com/problems/find-all-numbers-disappeared-in-an-array
54,Spiral Matrix,34.1%,Medium,0.0065941551175130245, https://leetcode.com/problems/spiral-matrix
203,Remove Linked List Elements,38.6%,Easy,0.006479067005887776, https://leetcode.com/problems/remove-linked-list-elements
162,Find Peak Element,43.3%,Medium,0.006350235659345837, https://leetcode.com/problems/find-peak-element
230,Kth Smallest Element in a BST,60.2%,Medium,0.0063361529894967236, https://leetcode.com/problems/kth-smallest-element-in-a-bst
104,Maximum Depth of Binary Tree,66.0%,Easy,0.006261761223976207, https://leetcode.com/problems/maximum-depth-of-binary-tree
144,Binary Tree Preorder Traversal,55.7%,Medium,0.0060975798681185, https://leetcode.com/problems/binary-tree-preorder-traversal
91,Decode Ways,24.7%,Medium,0.005968385368349129, https://leetcode.com/problems/decode-ways
39,Combination Sum,56.1%,Medium,0.005715934396440999, https://leetcode.com/problems/combination-sum
50,Pow(x;n),30.3%,Medium,0.0055950070772402055, https://leetcode.com/problems/powx-n
108,Convert Sorted Array to Binary Search Tree,57.9%,Easy,0.005554027051374908, https://leetcode.com/problems/convert-sorted-array-to-binary-search-tree
124,Binary Tree Maximum Path Sum,34.3%,Hard,0.005531752454833179, https://leetcode.com/problems/binary-tree-maximum-path-sum
287,Find the Duplicate Number,55.5%,Medium,0.005501320434837602, https://leetcode.com/problems/find-the-duplicate-number
543,Diameter of Binary Tree,48.4%,Easy,0.005305755914149804, https://leetcode.com/problems/diameter-of-binary-tree
237,Delete Node in a Linked List,63.8%,Easy,0.005144705881237697, https://leetcode.com/problems/delete-node-in-a-linked-list
55,Jump Game,34.6%,Medium,0.005022612266291382, https://leetcode.com/problems/jump-game
75,Sort Colors,47.3%,Medium,0.004992521603120986, https://leetcode.com/problems/sort-colors
62,Unique Paths,54.1%,Medium,0.004621080312067025, https://leetcode.com/problems/unique-paths
17,Letter Combinations of a Phone Number,46.8%,Medium,0.0044018999217624675, https://leetcode.com/problems/letter-combinations-of-a-phone-number
26,Remove Duplicates from Sorted Array,45.1%,Easy,0.004385117141850828, https://leetcode.com/problems/remove-duplicates-from-sorted-array
28,Implement strStr(),34.5%,Easy,0.003943222775040032, https://leetcode.com/problems/implement-strstr
238,Product of Array Except Self,60.1%,Medium,0.003930436424724545, https://leetcode.com/problems/product-of-array-except-self
977,Squares of a Sorted Array,72.1%,Easy,0.003891055492966611, https://leetcode.com/problems/squares-of-a-sorted-array
27,Remove Element,48.2%,Easy,0.0035524016043678225, https://leetcode.com/problems/remove-element
94,Binary Tree Inorder Traversal,63.3%,Medium,0.0033551449021403577, https://leetcode.com/problems/binary-tree-inorder-traversal
1480,Running Sum of 1d Array,90.5%,Easy,0.0026196884456014947, https://leetcode.com/problems/running-sum-of-1d-array
206,Reverse Linked List,62.5%,Easy,0.0023398665252948926, https://leetcode.com/problems/reverse-linked-list
258,Add Digits,57.6%,Easy,0.0020686809197766587, https://leetcode.com/problems/add-digits
70,Climbing Stairs,47.8%,Easy,0.0015084665529624085, https://leetcode.com/problems/climbing-stairs
100,Same Tree,53.4%,Easy,0.0014080047382258295, https://leetcode.com/problems/same-tree
1 1396 ID Design Underground System Title 64.7% Acceptance Medium Difficulty 2.155218657865939 Frequency https://leetcode.com/problems/design-underground-system Leetcode Question Link
2 1169 1396 Invalid Transactions Design Underground System 31.2% 64.7% Medium Medium 1.8705521944133323 2.155218657865939 https://leetcode.com/problems/invalid-transactions https://leetcode.com/problems/design-underground-system
3 430 1169 Flatten a Multilevel Doubly Linked List Invalid Transactions 55.1% 31.2% Medium Medium 1.8386285548491934 1.8705521944133323 https://leetcode.com/problems/flatten-a-multilevel-doubly-linked-list https://leetcode.com/problems/invalid-transactions
4 394 430 Decode String Flatten a Multilevel Doubly Linked List 50.0% 55.1% Medium Medium 1.5539620913965866 1.8386285548491934 https://leetcode.com/problems/decode-string https://leetcode.com/problems/flatten-a-multilevel-doubly-linked-list
5 1274 394 Number of Ships in a Rectangle Decode String 66.3% 50.0% Hard Medium 1.5168632132045061 1.5539620913965866 https://leetcode.com/problems/number-of-ships-in-a-rectangle https://leetcode.com/problems/decode-string
6 200 1274 Number of Islands Number of Ships in a Rectangle 46.8% 66.3% Medium Hard 1.2569671029144711 1.5168632132045061 https://leetcode.com/problems/number-of-islands https://leetcode.com/problems/number-of-ships-in-a-rectangle
7 1029 200 Two City Scheduling Number of Islands 56.1% 46.8% Easy Medium 1.1652198458372507 1.2569671029144711 https://leetcode.com/problems/two-city-scheduling https://leetcode.com/problems/number-of-islands
8 1209 1029 Remove All Adjacent Duplicates in String II Two City Scheduling 56.9% 56.1% Medium Easy 1.1602010262797395 1.1652198458372507 https://leetcode.com/problems/remove-all-adjacent-duplicates-in-string-ii https://leetcode.com/problems/two-city-scheduling
9 146 1209 LRU Cache Remove All Adjacent Duplicates in String II 33.2% 56.9% Medium Medium 1.1237841453867323 1.1602010262797395 https://leetcode.com/problems/lru-cache https://leetcode.com/problems/remove-all-adjacent-duplicates-in-string-ii
10 723 146 Candy Crush LRU Cache 69.2% 33.2% Medium Medium 0.8391176819341255 1.1237841453867323 https://leetcode.com/problems/candy-crush https://leetcode.com/problems/lru-cache
11 253 723 Meeting Rooms II Candy Crush 45.7% 69.2% Medium Medium 0.8140532494267123 0.8391176819341255 https://leetcode.com/problems/meeting-rooms-ii https://leetcode.com/problems/candy-crush
12 445 253 Add Two Numbers II Meeting Rooms II 54.5% 45.7% Medium Medium 0.5293867859741055 0.8140532494267123 https://leetcode.com/problems/add-two-numbers-ii https://leetcode.com/problems/meeting-rooms-ii
13 155 445 Min Stack Add Two Numbers II 44.5% 54.5% Easy Medium 0.5220441452861782 0.5293867859741055 https://leetcode.com/problems/min-stack https://leetcode.com/problems/add-two-numbers-ii
14 117 155 Populating Next Right Pointers in Each Node II Min Stack 39.1% 44.5% Medium Easy 0.4973329437215165 0.5220441452861782 https://leetcode.com/problems/populating-next-right-pointers-in-each-node-ii https://leetcode.com/problems/min-stack
15 2 117 Add Two Numbers Populating Next Right Pointers in Each Node II 33.9% 39.1% Medium Medium 0.49630461312547347 0.4973329437215165 https://leetcode.com/problems/add-two-numbers https://leetcode.com/problems/populating-next-right-pointers-in-each-node-ii
16 380 2 Insert Delete GetRandom O(1) Add Two Numbers 47.5% 33.9% Medium Medium 0.48958006104635376 0.49630461312547347 https://leetcode.com/problems/insert-delete-getrandom-o1 https://leetcode.com/problems/add-two-numbers
17 987 380 Vertical Order Traversal of a Binary Tree Insert Delete GetRandom O(1) 36.6% 47.5% Medium Medium 0.4521972578125842 0.48958006104635376 https://leetcode.com/problems/vertical-order-traversal-of-a-binary-tree https://leetcode.com/problems/insert-delete-getrandom-o1
18 1472 987 Design Browser History Vertical Order Traversal of a Binary Tree 64.6% 36.6% Medium Medium 0.41985384556026395 0.4521972578125842 https://leetcode.com/problems/design-browser-history https://leetcode.com/problems/vertical-order-traversal-of-a-binary-tree
19 387 1472 First Unique Character in a String Design Browser History 53.4% 64.6% Easy Medium 0.41045073684368005 0.41985384556026395 https://leetcode.com/problems/first-unique-character-in-a-string https://leetcode.com/problems/design-browser-history
20 98 387 Validate Binary Search Tree First Unique Character in a String 27.8% 53.4% Medium Easy 0.3538407427028572 0.41045073684368005 https://leetcode.com/problems/validate-binary-search-tree https://leetcode.com/problems/first-unique-character-in-a-string
21 390 98 Elimination Game Validate Binary Search Tree 44.5% 27.8% Medium Medium 0.33790695709687324 0.3538407427028572 https://leetcode.com/problems/elimination-game https://leetcode.com/problems/validate-binary-search-tree
22 611 390 Valid Triangle Number Elimination Game 48.4% 44.5% Medium Medium 0.33024168687057687 0.33790695709687324 https://leetcode.com/problems/valid-triangle-number https://leetcode.com/problems/elimination-game
23 314 611 Binary Tree Vertical Order Traversal Valid Triangle Number 45.3% 48.4% Medium Medium 0.3133604469552722 0.33024168687057687 https://leetcode.com/problems/binary-tree-vertical-order-traversal https://leetcode.com/problems/valid-triangle-number
24 582 314 Kill Process Binary Tree Vertical Order Traversal 60.8% 45.3% Medium Medium 0.29905506262405096 0.3133604469552722 https://leetcode.com/problems/kill-process https://leetcode.com/problems/binary-tree-vertical-order-traversal
25 451 582 Sort Characters By Frequency Kill Process 63.0% 60.8% Medium Medium 0.285942725510602 0.29905506262405096 https://leetcode.com/problems/sort-characters-by-frequency https://leetcode.com/problems/kill-process
26 42 451 Trapping Rain Water Sort Characters By Frequency 48.9% 63.0% Hard Medium 0.27385241509061997 0.285942725510602 https://leetcode.com/problems/trapping-rain-water https://leetcode.com/problems/sort-characters-by-frequency
27 422 42 Valid Word Square Trapping Rain Water 37.7% 48.9% Easy Hard 0.2578291093020998 0.27385241509061997 https://leetcode.com/problems/valid-word-square https://leetcode.com/problems/trapping-rain-water
28 139 422 Word Break Valid Word Square 40.1% 37.7% Medium Easy 0.24836185186023652 0.2578291093020998 https://leetcode.com/problems/word-break https://leetcode.com/problems/valid-word-square
29 138 139 Copy List with Random Pointer Word Break 36.4% 40.1% Medium Medium 0.2330001096609468 0.24836185186023652 https://leetcode.com/problems/copy-list-with-random-pointer https://leetcode.com/problems/word-break
30 1 138 Two Sum Copy List with Random Pointer 45.6% 36.4% Easy Medium 0.2242758219657857 0.2330001096609468 https://leetcode.com/problems/two-sum https://leetcode.com/problems/copy-list-with-random-pointer
31 1223 1 Dice Roll Simulation Two Sum 45.6% 45.6% Medium Easy 0.2166710368085923 0.2242758219657857 https://leetcode.com/problems/dice-roll-simulation https://leetcode.com/problems/two-sum
32 12 1223 Integer to Roman Dice Roll Simulation 55.1% 45.6% Medium Medium 0.19410560740412444 0.2166710368085923 https://leetcode.com/problems/integer-to-roman https://leetcode.com/problems/dice-roll-simulation
33 33 12 Search in Rotated Sorted Array Integer to Roman 34.5% 55.1% Medium Medium 0.1881816310890415 0.19410560740412444 https://leetcode.com/problems/search-in-rotated-sorted-array https://leetcode.com/problems/integer-to-roman
34 3 33 Longest Substring Without Repeating Characters Search in Rotated Sorted Array 30.4% 34.5% Medium Medium 0.18722008570926535 0.1881816310890415 https://leetcode.com/problems/longest-substring-without-repeating-characters https://leetcode.com/problems/search-in-rotated-sorted-array
35 797 3 All Paths From Source to Target Longest Substring Without Repeating Characters 77.9% 30.4% Medium Medium 0.18261007976444532 0.18722008570926535 https://leetcode.com/problems/all-paths-from-source-to-target https://leetcode.com/problems/longest-substring-without-repeating-characters
36 1244 797 Design A Leaderboard All Paths From Source to Target 60.7% 77.9% Medium Medium 0.17763094743610072 0.18261007976444532 https://leetcode.com/problems/design-a-leaderboard https://leetcode.com/problems/all-paths-from-source-to-target
37 384 1244 Shuffle an Array Design A Leaderboard 52.8% 60.7% Medium Medium 0.17247686769050424 0.17763094743610072 https://leetcode.com/problems/shuffle-an-array https://leetcode.com/problems/design-a-leaderboard
38 283 384 Move Zeroes Shuffle an Array 57.8% 52.8% Easy Medium 0.16968455522475076 0.17247686769050424 https://leetcode.com/problems/move-zeroes https://leetcode.com/problems/shuffle-an-array
39 116 283 Populating Next Right Pointers in Each Node Move Zeroes 45.2% 57.8% Medium Easy 0.16897814162027025 0.16968455522475076 https://leetcode.com/problems/populating-next-right-pointers-in-each-node https://leetcode.com/problems/move-zeroes
40 242 116 Valid Anagram Populating Next Right Pointers in Each Node 56.9% 45.2% Easy Medium 0.1620140669319784 0.16897814162027025 https://leetcode.com/problems/valid-anagram https://leetcode.com/problems/populating-next-right-pointers-in-each-node
41 56 242 Merge Intervals Valid Anagram 39.3% 56.9% Medium Easy 0.1574006175650271 0.1620140669319784 https://leetcode.com/problems/merge-intervals https://leetcode.com/problems/valid-anagram
42 20 56 Valid Parentheses Merge Intervals 39.0% 39.3% Easy Medium 0.15392855906669206 0.1574006175650271 https://leetcode.com/problems/valid-parentheses https://leetcode.com/problems/merge-intervals
43 1047 20 Remove All Adjacent Duplicates In String Valid Parentheses 68.6% 39.0% Easy Easy 0.14930349746217414 0.15392855906669206 https://leetcode.com/problems/remove-all-adjacent-duplicates-in-string https://leetcode.com/problems/valid-parentheses
44 5 1047 Longest Palindromic Substring Remove All Adjacent Duplicates In String 29.5% 68.6% Medium Easy 0.12076411655886263 0.14930349746217414 https://leetcode.com/problems/longest-palindromic-substring https://leetcode.com/problems/remove-all-adjacent-duplicates-in-string
45 23 5 Merge k Sorted Lists Longest Palindromic Substring 40.2% 29.5% Hard Medium 0.11583022971243631 0.12076411655886263 https://leetcode.com/problems/merge-k-sorted-lists https://leetcode.com/problems/longest-palindromic-substring
46 328 23 Odd Even Linked List Merge k Sorted Lists 55.7% 40.2% Medium Hard 0.11579884452311498 0.11583022971243631 https://leetcode.com/problems/odd-even-linked-list https://leetcode.com/problems/merge-k-sorted-lists
47 1188 328 Design Bounded Blocking Queue Odd Even Linked List 70.5% 55.7% Medium Medium 0.11030454201470608 0.11579884452311498 https://leetcode.com/problems/design-bounded-blocking-queue https://leetcode.com/problems/odd-even-linked-list
48 695 1188 Max Area of Island Design Bounded Blocking Queue 62.7% 70.5% Medium Medium 0.10876995385464024 0.11030454201470608 https://leetcode.com/problems/max-area-of-island https://leetcode.com/problems/design-bounded-blocking-queue
49 924 695 Minimize Malware Spread Max Area of Island 42.0% 62.7% Hard Medium 0.10821358464023274 0.10876995385464024 https://leetcode.com/problems/minimize-malware-spread https://leetcode.com/problems/max-area-of-island
50 128 924 Longest Consecutive Sequence Minimize Malware Spread 45.1% 42.0% Hard Hard 0.10561054122992579 0.10821358464023274 https://leetcode.com/problems/longest-consecutive-sequence https://leetcode.com/problems/minimize-malware-spread
51 1060 128 Missing Element in Sorted Array Longest Consecutive Sequence 54.5% 45.1% Medium Hard 0.1042610103244094 0.10561054122992579 https://leetcode.com/problems/missing-element-in-sorted-array https://leetcode.com/problems/longest-consecutive-sequence
52 658 1060 Find K Closest Elements Missing Element in Sorted Array 40.9% 54.5% Medium Medium 0.0995648587647672 0.1042610103244094 https://leetcode.com/problems/find-k-closest-elements https://leetcode.com/problems/missing-element-in-sorted-array
53 41 658 First Missing Positive Find K Closest Elements 32.0% 40.9% Hard Medium 0.0979525363954321 0.0995648587647672 https://leetcode.com/problems/first-missing-positive https://leetcode.com/problems/find-k-closest-elements
54 463 41 Island Perimeter First Missing Positive 65.7% 32.0% Easy Hard 0.0943601559822778 0.0979525363954321 https://leetcode.com/problems/island-perimeter https://leetcode.com/problems/first-missing-positive
55 21 463 Merge Two Sorted Lists Island Perimeter 53.5% 65.7% Easy Easy 0.09110919511165776 0.0943601559822778 https://leetcode.com/problems/merge-two-sorted-lists https://leetcode.com/problems/island-perimeter
56 652 21 Find Duplicate Subtrees Merge Two Sorted Lists 50.2% 53.5% Medium Easy 0.08907963005368878 0.09110919511165776 https://leetcode.com/problems/find-duplicate-subtrees https://leetcode.com/problems/merge-two-sorted-lists
57 15 652 3Sum Find Duplicate Subtrees 26.8% 50.2% Medium Medium 0.08893577620894672 0.08907963005368878 https://leetcode.com/problems/3sum https://leetcode.com/problems/find-duplicate-subtrees
58 991 15 Broken Calculator 3Sum 45.6% 26.8% Medium Medium 0.08515780834030685 0.08893577620894672 https://leetcode.com/problems/broken-calculator https://leetcode.com/problems/3sum
59 10 991 Regular Expression Matching Broken Calculator 26.8% 45.6% Hard Medium 0.08466459371201616 0.08515780834030685 https://leetcode.com/problems/regular-expression-matching https://leetcode.com/problems/broken-calculator
60 332 10 Reconstruct Itinerary Regular Expression Matching 36.7% 26.8% Medium Hard 0.08302143328026106 0.08466459371201616 https://leetcode.com/problems/reconstruct-itinerary https://leetcode.com/problems/regular-expression-matching
61 813 332 Largest Sum of Averages Reconstruct Itinerary 49.9% 36.7% Medium Medium 0.08201315166083516 0.08302143328026106 https://leetcode.com/problems/largest-sum-of-averages https://leetcode.com/problems/reconstruct-itinerary
62 140 813 Word Break II Largest Sum of Averages 32.6% 49.9% Hard Medium 0.07881168148917794 0.08201315166083516 https://leetcode.com/problems/word-break-ii https://leetcode.com/problems/largest-sum-of-averages
63 1297 140 Maximum Number of Occurrences of a Substring Word Break II 47.3% 32.6% Medium Hard 0.07770898432731625 0.07881168148917794 https://leetcode.com/problems/maximum-number-of-occurrences-of-a-substring https://leetcode.com/problems/word-break-ii
64 1347 1297 Minimum Number of Steps to Make Two Strings Anagram Maximum Number of Occurrences of a Substring 74.7% 47.3% Medium Medium 0.07742472477971579 0.07770898432731625 https://leetcode.com/problems/minimum-number-of-steps-to-make-two-strings-anagram https://leetcode.com/problems/maximum-number-of-occurrences-of-a-substring
65 399 1347 Evaluate Division Minimum Number of Steps to Make Two Strings Anagram 51.6% 74.7% Medium Medium 0.07536521894921006 0.07742472477971579 https://leetcode.com/problems/evaluate-division https://leetcode.com/problems/minimum-number-of-steps-to-make-two-strings-anagram
66 214 399 Shortest Palindrome Evaluate Division 29.8% 51.6% Hard Medium 0.0753494372417868 0.07536521894921006 https://leetcode.com/problems/shortest-palindrome https://leetcode.com/problems/evaluate-division
67 49 214 Group Anagrams Shortest Palindrome 56.9% 29.8% Medium Hard 0.07434615245733686 0.0753494372417868 https://leetcode.com/problems/group-anagrams https://leetcode.com/problems/shortest-palindrome
68 79 49 Word Search Group Anagrams 35.6% 56.9% Medium Medium 0.06802605972322294 0.07434615245733686 https://leetcode.com/problems/word-search https://leetcode.com/problems/group-anagrams
69 199 79 Binary Tree Right Side View Word Search 54.1% 35.6% Medium Medium 0.06748154336946242 0.06802605972322294 https://leetcode.com/problems/binary-tree-right-side-view https://leetcode.com/problems/word-search
70 105 199 Construct Binary Tree from Preorder and Inorder Traversal Binary Tree Right Side View 48.8% 54.1% Medium Medium 0.06685522312111739 0.06748154336946242 https://leetcode.com/problems/construct-binary-tree-from-preorder-and-inorder-traversal https://leetcode.com/problems/binary-tree-right-side-view
71 1145 105 Binary Tree Coloring Game Construct Binary Tree from Preorder and Inorder Traversal 51.2% 48.8% Medium Medium 0.06592172080482424 0.06685522312111739 https://leetcode.com/problems/binary-tree-coloring-game https://leetcode.com/problems/construct-binary-tree-from-preorder-and-inorder-traversal
72 662 1145 Maximum Width of Binary Tree Binary Tree Coloring Game 41.0% 51.2% Medium Medium 0.06560589270959301 0.06592172080482424 https://leetcode.com/problems/maximum-width-of-binary-tree https://leetcode.com/problems/binary-tree-coloring-game
73 565 662 Array Nesting Maximum Width of Binary Tree 55.5% 41.0% Medium Medium 0.06351340572232586 0.06560589270959301 https://leetcode.com/problems/array-nesting https://leetcode.com/problems/maximum-width-of-binary-tree
74 397 565 Integer Replacement Array Nesting 32.9% 55.5% Medium Medium 0.06331227941432688 0.06351340572232586 https://leetcode.com/problems/integer-replacement https://leetcode.com/problems/array-nesting
75 353 397 Design Snake Game Integer Replacement 34.2% 32.9% Medium Medium 0.06053284922884233 0.06331227941432688 https://leetcode.com/problems/design-snake-game https://leetcode.com/problems/integer-replacement
76 221 353 Maximal Square Design Snake Game 37.7% 34.2% Medium Medium 0.060244665945199054 0.06053284922884233 https://leetcode.com/problems/maximal-square https://leetcode.com/problems/design-snake-game
77 8 221 String to Integer (atoi) Maximal Square 15.4% 37.7% Medium Medium 0.0590196151944673 0.060244665945199054 https://leetcode.com/problems/string-to-integer-atoi https://leetcode.com/problems/maximal-square
78 417 8 Pacific Atlantic Water Flow String to Integer (atoi) 41.1% 15.4% Medium Medium 0.057523844138186606 0.0590196151944673 https://leetcode.com/problems/pacific-atlantic-water-flow https://leetcode.com/problems/string-to-integer-atoi
79 78 417 Subsets Pacific Atlantic Water Flow 62.0% 41.1% Medium Medium 0.05743033072740612 0.057523844138186606 https://leetcode.com/problems/subsets https://leetcode.com/problems/pacific-atlantic-water-flow
80 1249 78 Minimum Remove to Make Valid Parentheses Subsets 62.5% 62.0% Medium Medium 0.05613145611169511 0.05743033072740612 https://leetcode.com/problems/minimum-remove-to-make-valid-parentheses https://leetcode.com/problems/subsets
81 752 1249 Open the Lock Minimum Remove to Make Valid Parentheses 51.8% 62.5% Medium Medium 0.05449289949671372 0.05613145611169511 https://leetcode.com/problems/open-the-lock https://leetcode.com/problems/minimum-remove-to-make-valid-parentheses
82 1054 752 Distant Barcodes Open the Lock 43.2% 51.8% Medium Medium 0.054435206555017046 0.05449289949671372 https://leetcode.com/problems/distant-barcodes https://leetcode.com/problems/open-the-lock
83 44 1054 Wildcard Matching Distant Barcodes 24.7% 43.2% Hard Medium 0.053722215229247965 0.054435206555017046 https://leetcode.com/problems/wildcard-matching https://leetcode.com/problems/distant-barcodes
84 53 44 Maximum Subarray Wildcard Matching 46.5% 24.7% Easy Hard 0.052816160704876255 0.053722215229247965 https://leetcode.com/problems/maximum-subarray https://leetcode.com/problems/wildcard-matching
85 85 53 Maximal Rectangle Maximum Subarray 37.7% 46.5% Hard Easy 0.05229949940284891 0.052816160704876255 https://leetcode.com/problems/maximal-rectangle https://leetcode.com/problems/maximum-subarray
86 173 85 Binary Search Tree Iterator Maximal Rectangle 56.6% 37.7% Medium Hard 0.0519111767751893 0.05229949940284891 https://leetcode.com/problems/binary-search-tree-iterator https://leetcode.com/problems/maximal-rectangle
87 121 173 Best Time to Buy and Sell Stock Binary Search Tree Iterator 50.5% 56.6% Easy Medium 0.05179016768312839 0.0519111767751893 https://leetcode.com/problems/best-time-to-buy-and-sell-stock https://leetcode.com/problems/binary-search-tree-iterator
88 286 121 Walls and Gates Best Time to Buy and Sell Stock 54.5% 50.5% Medium Easy 0.05155780966485001 0.05179016768312839 https://leetcode.com/problems/walls-and-gates https://leetcode.com/problems/best-time-to-buy-and-sell-stock
89 708 286 Insert into a Sorted Circular Linked List Walls and Gates 31.6% 54.5% Medium Medium 0.05142521180743711 0.05155780966485001 https://leetcode.com/problems/insert-into-a-sorted-circular-linked-list https://leetcode.com/problems/walls-and-gates
90 84 708 Largest Rectangle in Histogram Insert into a Sorted Circular Linked List 35.2% 31.6% Hard Medium 0.051000241824383195 0.05142521180743711 https://leetcode.com/problems/largest-rectangle-in-histogram https://leetcode.com/problems/insert-into-a-sorted-circular-linked-list
91 1312 84 Minimum Insertion Steps to Make a String Palindrome Largest Rectangle in Histogram 58.1% 35.2% Hard Hard 0.050261834780888255 0.051000241824383195 https://leetcode.com/problems/minimum-insertion-steps-to-make-a-string-palindrome https://leetcode.com/problems/largest-rectangle-in-histogram
92 269 1312 Alien Dictionary Minimum Insertion Steps to Make a String Palindrome 33.3% 58.1% Hard Hard 0.04997917057465883 0.050261834780888255 https://leetcode.com/problems/alien-dictionary https://leetcode.com/problems/minimum-insertion-steps-to-make-a-string-palindrome
93 285 269 Inorder Successor in BST Alien Dictionary 40.4% 33.3% Medium Hard 0.049569618859417214 0.04997917057465883 https://leetcode.com/problems/inorder-successor-in-bst https://leetcode.com/problems/alien-dictionary
94 518 285 Coin Change 2 Inorder Successor in BST 50.2% 40.4% Medium Medium 0.04919528672454412 0.049569618859417214 https://leetcode.com/problems/coin-change-2 https://leetcode.com/problems/inorder-successor-in-bst
95 889 518 Construct Binary Tree from Preorder and Postorder Traversal Coin Change 2 66.2% 50.2% Medium Medium 0.04902942724031861 0.04919528672454412 https://leetcode.com/problems/construct-binary-tree-from-preorder-and-postorder-traversal https://leetcode.com/problems/coin-change-2
96 759 889 Employee Free Time Construct Binary Tree from Preorder and Postorder Traversal 66.3% 66.2% Hard Medium 0.04861224405509378 0.04902942724031861 https://leetcode.com/problems/employee-free-time https://leetcode.com/problems/construct-binary-tree-from-preorder-and-postorder-traversal
97 322 759 Coin Change Employee Free Time 35.5% 66.3% Medium Hard 0.04828048261319787 0.04861224405509378 https://leetcode.com/problems/coin-change https://leetcode.com/problems/employee-free-time
98 88 322 Merge Sorted Array Coin Change 39.4% 35.5% Easy Medium 0.04710909306080898 0.04828048261319787 https://leetcode.com/problems/merge-sorted-array https://leetcode.com/problems/coin-change
99 692 88 Top K Frequent Words Merge Sorted Array 51.8% 39.4% Medium Easy 0.046074115337669586 0.04710909306080898 https://leetcode.com/problems/top-k-frequent-words https://leetcode.com/problems/merge-sorted-array
100 90 692 Subsets II Top K Frequent Words 47.1% 51.8% Medium Medium 0.044888321248134265 0.046074115337669586 https://leetcode.com/problems/subsets-ii https://leetcode.com/problems/top-k-frequent-words
101 102 90 Binary Tree Level Order Traversal Subsets II 54.6% 47.1% Medium Medium 0.04369064305418892 0.044888321248134265 https://leetcode.com/problems/binary-tree-level-order-traversal https://leetcode.com/problems/subsets-ii
102 716 102 Max Stack Binary Tree Level Order Traversal 42.6% 54.6% Easy Medium 0.042695919196489414 0.04369064305418892 https://leetcode.com/problems/max-stack https://leetcode.com/problems/binary-tree-level-order-traversal
103 229 716 Majority Element II Max Stack 35.6% 42.6% Medium Easy 0.04237922296886145 0.042695919196489414 https://leetcode.com/problems/majority-element-ii https://leetcode.com/problems/max-stack
104 727 229 Minimum Window Subsequence Majority Element II 41.8% 35.6% Hard Medium 0.04237922296886145 0.04237922296886145 https://leetcode.com/problems/minimum-window-subsequence https://leetcode.com/problems/majority-element-ii
105 114 727 Flatten Binary Tree to Linked List Minimum Window Subsequence 49.3% 41.8% Medium Hard 0.04234332805480797 0.04237922296886145 https://leetcode.com/problems/flatten-binary-tree-to-linked-list https://leetcode.com/problems/minimum-window-subsequence
106 1155 114 Number of Dice Rolls With Target Sum Flatten Binary Tree to Linked List 49.0% 49.3% Medium Medium 0.04204262329555109 0.04234332805480797 https://leetcode.com/problems/number-of-dice-rolls-with-target-sum https://leetcode.com/problems/flatten-binary-tree-to-linked-list
107 503 1155 Next Greater Element II Number of Dice Rolls With Target Sum 56.5% 49.0% Medium Medium 0.041944638750466105 0.04204262329555109 https://leetcode.com/problems/next-greater-element-ii https://leetcode.com/problems/number-of-dice-rolls-with-target-sum
108 92 503 Reverse Linked List II Next Greater Element II 38.8% 56.5% Medium Medium 0.041073535208287514 0.041944638750466105 https://leetcode.com/problems/reverse-linked-list-ii https://leetcode.com/problems/next-greater-element-ii
109 292 92 Nim Game Reverse Linked List II 54.9% 38.8% Easy Medium 0.03996979643236185 0.041073535208287514 https://leetcode.com/problems/nim-game https://leetcode.com/problems/reverse-linked-list-ii
110 72 292 Edit Distance Nim Game 44.8% 54.9% Hard Easy 0.039482058697133414 0.03996979643236185 https://leetcode.com/problems/edit-distance https://leetcode.com/problems/nim-game
111 993 72 Cousins in Binary Tree Edit Distance 52.0% 44.8% Easy Hard 0.03876454345024432 0.039482058697133414 https://leetcode.com/problems/cousins-in-binary-tree https://leetcode.com/problems/edit-distance
112 22 993 Generate Parentheses Cousins in Binary Tree 62.7% 52.0% Medium Easy 0.038581724751038625 0.03876454345024432 https://leetcode.com/problems/generate-parentheses https://leetcode.com/problems/cousins-in-binary-tree
113 31 22 Next Permutation Generate Parentheses 32.6% 62.7% Medium Medium 0.03686102113159897 0.038581724751038625 https://leetcode.com/problems/next-permutation https://leetcode.com/problems/generate-parentheses
114 127 31 Word Ladder Next Permutation 29.6% 32.6% Medium Medium 0.03679590970204585 0.03686102113159897 https://leetcode.com/problems/word-ladder https://leetcode.com/problems/next-permutation
115 673 127 Number of Longest Increasing Subsequence Word Ladder 35.7% 29.6% Medium Medium 0.036467121912812143 0.03679590970204585 https://leetcode.com/problems/number-of-longest-increasing-subsequence https://leetcode.com/problems/word-ladder
116 250 673 Count Univalue Subtrees Number of Longest Increasing Subsequence 52.0% 35.7% Medium Medium 0.036235848454044865 0.036467121912812143 https://leetcode.com/problems/count-univalue-subtrees https://leetcode.com/problems/number-of-longest-increasing-subsequence
117 71 250 Simplify Path Count Univalue Subtrees 32.6% 52.0% Medium Medium 0.03622126343431837 0.036235848454044865 https://leetcode.com/problems/simplify-path https://leetcode.com/problems/count-univalue-subtrees
118 650 71 2 Keys Keyboard Simplify Path 49.2% 32.6% Medium Medium 0.035910501305770864 0.03622126343431837 https://leetcode.com/problems/2-keys-keyboard https://leetcode.com/problems/simplify-path
119 125 650 Valid Palindrome 2 Keys Keyboard 36.7% 49.2% Easy Medium 0.035266657982323354 0.035910501305770864 https://leetcode.com/problems/valid-palindrome https://leetcode.com/problems/2-keys-keyboard
120 4 125 Median of Two Sorted Arrays Valid Palindrome 29.6% 36.7% Hard Easy 0.034565653112280895 0.035266657982323354 https://leetcode.com/problems/median-of-two-sorted-arrays https://leetcode.com/problems/valid-palindrome
121 274 4 H-Index Median of Two Sorted Arrays 36.1% 29.6% Medium Hard 0.03364488914272426 0.034565653112280895 https://leetcode.com/problems/h-index https://leetcode.com/problems/median-of-two-sorted-arrays
122 209 274 Minimum Size Subarray Sum H-Index 38.2% 36.1% Medium Medium 0.033239453928687726 0.03364488914272426 https://leetcode.com/problems/minimum-size-subarray-sum https://leetcode.com/problems/h-index
123 694 209 Number of Distinct Islands Minimum Size Subarray Sum 56.0% 38.2% Medium Medium 0.03278982282299087 0.033239453928687726 https://leetcode.com/problems/number-of-distinct-islands https://leetcode.com/problems/minimum-size-subarray-sum
124 315 694 Count of Smaller Numbers After Self Number of Distinct Islands 41.5% 56.0% Hard Medium 0.03200842244384717 0.03278982282299087 https://leetcode.com/problems/count-of-smaller-numbers-after-self https://leetcode.com/problems/number-of-distinct-islands
125 1123 315 Lowest Common Ancestor of Deepest Leaves Count of Smaller Numbers After Self 66.8% 41.5% Medium Hard 0.03147388037973136 0.03200842244384717 https://leetcode.com/problems/lowest-common-ancestor-of-deepest-leaves https://leetcode.com/problems/count-of-smaller-numbers-after-self
126 69 1123 Sqrt(x) Lowest Common Ancestor of Deepest Leaves 33.9% 66.8% Easy Medium 0.03146892772463772 0.03147388037973136 https://leetcode.com/problems/sqrtx https://leetcode.com/problems/lowest-common-ancestor-of-deepest-leaves
127 222 69 Count Complete Tree Nodes Sqrt(x) 46.8% 33.9% Medium Easy 0.031263400619043376 0.03146892772463772 https://leetcode.com/problems/count-complete-tree-nodes https://leetcode.com/problems/sqrtx
128 460 222 LFU Cache Count Complete Tree Nodes 34.2% 46.8% Hard Medium 0.030962225603966897 0.031263400619043376 https://leetcode.com/problems/lfu-cache https://leetcode.com/problems/count-complete-tree-nodes
129 557 460 Reverse Words in a String III LFU Cache 69.8% 34.2% Easy Hard 0.03063547953861342 0.030962225603966897 https://leetcode.com/problems/reverse-words-in-a-string-iii https://leetcode.com/problems/lfu-cache
130 160 557 Intersection of Two Linked Lists Reverse Words in a String III 40.6% 69.8% Easy Easy 0.030246680296091687 0.03063547953861342 https://leetcode.com/problems/intersection-of-two-linked-lists https://leetcode.com/problems/reverse-words-in-a-string-iii
131 846 160 Hand of Straights Intersection of Two Linked Lists 54.2% 40.6% Medium Easy 0.029284669545175425 0.030246680296091687 https://leetcode.com/problems/hand-of-straights https://leetcode.com/problems/intersection-of-two-linked-lists
132 413 846 Arithmetic Slices Hand of Straights 57.9% 54.2% Medium Medium 0.028431197162004825 0.029284669545175425 https://leetcode.com/problems/arithmetic-slices https://leetcode.com/problems/hand-of-straights
133 46 413 Permutations Arithmetic Slices 63.5% 57.9% Medium Medium 0.026064861710547768 0.028431197162004825 https://leetcode.com/problems/permutations https://leetcode.com/problems/arithmetic-slices
134 136 46 Single Number Permutations 65.5% 63.5% Easy Medium 0.025535113202894706 0.026064861710547768 https://leetcode.com/problems/single-number https://leetcode.com/problems/permutations
135 30 136 Substring with Concatenation of All Words Single Number 25.4% 65.5% Hard Easy 0.02486144206532915 0.025535113202894706 https://leetcode.com/problems/substring-with-concatenation-of-all-words https://leetcode.com/problems/single-number
136 149 30 Max Points on a Line Substring with Concatenation of All Words 16.9% 25.4% Hard Hard 0.02484599858653081 0.02486144206532915 https://leetcode.com/problems/max-points-on-a-line https://leetcode.com/problems/substring-with-concatenation-of-all-words
137 76 149 Minimum Window Substring Max Points on a Line 34.6% 16.9% Hard Hard 0.024696424154275233 0.02484599858653081 https://leetcode.com/problems/minimum-window-substring https://leetcode.com/problems/max-points-on-a-line
138 64 76 Minimum Path Sum Minimum Window Substring 54.5% 34.6% Medium Hard 0.024287775531756203 0.024696424154275233 https://leetcode.com/problems/minimum-path-sum https://leetcode.com/problems/minimum-window-substring
139 395 64 Longest Substring with At Least K Repeating Characters Minimum Path Sum 41.4% 54.5% Medium Medium 0.024228925974379843 0.024287775531756203 https://leetcode.com/problems/longest-substring-with-at-least-k-repeating-characters https://leetcode.com/problems/minimum-path-sum
140 348 395 Design Tic-Tac-Toe Longest Substring with At Least K Repeating Characters 54.3% 41.4% Medium Medium 0.024214258120594613 0.024228925974379843 https://leetcode.com/problems/design-tic-tac-toe https://leetcode.com/problems/longest-substring-with-at-least-k-repeating-characters
141 99 348 Recover Binary Search Tree Design Tic-Tac-Toe 39.7% 54.3% Hard Medium 0.02310905839365837 0.024214258120594613 https://leetcode.com/problems/recover-binary-search-tree https://leetcode.com/problems/design-tic-tac-toe
142 13 99 Roman to Integer Recover Binary Search Tree 55.7% 39.7% Easy Hard 0.021239435742925746 0.02310905839365837 https://leetcode.com/problems/roman-to-integer https://leetcode.com/problems/recover-binary-search-tree
143 101 13 Symmetric Tree Roman to Integer 46.8% 55.7% Easy Easy 0.02109782896463587 0.021239435742925746 https://leetcode.com/problems/symmetric-tree https://leetcode.com/problems/roman-to-integer
144 359 101 Logger Rate Limiter Symmetric Tree 70.8% 46.8% Easy Easy 0.021053409197832343 0.02109782896463587 https://leetcode.com/problems/logger-rate-limiter https://leetcode.com/problems/symmetric-tree
145 97 359 Interleaving String Logger Rate Limiter 31.5% 70.8% Hard Easy 0.020471543980187256 0.021053409197832343 https://leetcode.com/problems/interleaving-string https://leetcode.com/problems/logger-rate-limiter
146 424 97 Longest Repeating Character Replacement Interleaving String 47.0% 31.5% Medium Hard 0.020461071871340063 0.020471543980187256 https://leetcode.com/problems/longest-repeating-character-replacement https://leetcode.com/problems/interleaving-string
147 784 424 Letter Case Permutation Longest Repeating Character Replacement 64.6% 47.0% Medium Medium 0.02026411791905559 0.020461071871340063 https://leetcode.com/problems/letter-case-permutation https://leetcode.com/problems/longest-repeating-character-replacement
148 295 784 Find Median from Data Stream Letter Case Permutation 44.3% 64.6% Hard Medium 0.0201349084090559 0.02026411791905559 https://leetcode.com/problems/find-median-from-data-stream https://leetcode.com/problems/letter-case-permutation
149 721 295 Accounts Merge Find Median from Data Stream 48.8% 44.3% Medium Hard 0.01888630262874805 0.0201349084090559 https://leetcode.com/problems/accounts-merge https://leetcode.com/problems/find-median-from-data-stream
150 532 721 K-diff Pairs in an Array Accounts Merge 31.6% 48.8% Easy Medium 0.018735911057469818 0.01888630262874805 https://leetcode.com/problems/k-diff-pairs-in-an-array https://leetcode.com/problems/accounts-merge
151 450 532 Delete Node in a BST K-diff Pairs in an Array 43.1% 31.6% Medium Easy 0.018536211907915243 0.018735911057469818 https://leetcode.com/problems/delete-node-in-a-bst https://leetcode.com/problems/k-diff-pairs-in-an-array
152 234 450 Palindrome Linked List Delete Node in a BST 39.3% 43.1% Easy Medium 0.01801241989645556 0.018536211907915243 https://leetcode.com/problems/palindrome-linked-list https://leetcode.com/problems/delete-node-in-a-bst
153 126 234 Word Ladder II Palindrome Linked List 22.1% 39.3% Hard Easy 0.017994187717865196 0.01801241989645556 https://leetcode.com/problems/word-ladder-ii https://leetcode.com/problems/palindrome-linked-list
154 6 126 ZigZag Conversion Word Ladder II 36.3% 22.1% Medium Hard 0.01726827253226344 0.017994187717865196 https://leetcode.com/problems/zigzag-conversion https://leetcode.com/problems/word-ladder-ii
155 415 6 Add Strings ZigZag Conversion 47.5% 36.3% Easy Medium 0.016991158247219373 0.01726827253226344 https://leetcode.com/problems/add-strings https://leetcode.com/problems/zigzag-conversion
156 402 415 Remove K Digits Add Strings 28.4% 47.5% Medium Easy 0.016863806052004816 0.016991158247219373 https://leetcode.com/problems/remove-k-digits https://leetcode.com/problems/add-strings
157 188 402 Best Time to Buy and Sell Stock IV Remove K Digits 28.0% 28.4% Hard Medium 0.01651565203072114 0.016863806052004816 https://leetcode.com/problems/best-time-to-buy-and-sell-stock-iv https://leetcode.com/problems/remove-k-digits
158 103 188 Binary Tree Zigzag Level Order Traversal Best Time to Buy and Sell Stock IV 48.3% 28.0% Medium Hard 0.015272005981326173 0.01651565203072114 https://leetcode.com/problems/binary-tree-zigzag-level-order-traversal https://leetcode.com/problems/best-time-to-buy-and-sell-stock-iv
159 29 103 Divide Two Integers Binary Tree Zigzag Level Order Traversal 16.4% 48.3% Medium Medium 0.01517479801923515 0.015272005981326173 https://leetcode.com/problems/divide-two-integers https://leetcode.com/problems/binary-tree-zigzag-level-order-traversal
160 118 29 Pascal's Triangle Divide Two Integers 52.5% 16.4% Easy Medium 0.015123796918620345 0.01517479801923515 https://leetcode.com/problems/pascals-triangle https://leetcode.com/problems/divide-two-integers
161 1025 118 Divisor Game Pascal's Triangle 66.3% 52.5% Easy Easy 0.015015297119995507 0.015123796918620345 https://leetcode.com/problems/divisor-game https://leetcode.com/problems/pascals-triangle
162 153 1025 Find Minimum in Rotated Sorted Array Divisor Game 45.1% 66.3% Medium Easy 0.014939586916186732 0.015015297119995507 https://leetcode.com/problems/find-minimum-in-rotated-sorted-array https://leetcode.com/problems/divisor-game
163 516 153 Longest Palindromic Subsequence Find Minimum in Rotated Sorted Array 53.2% 45.1% Medium Medium 0.014931221774984842 0.014939586916186732 https://leetcode.com/problems/longest-palindromic-subsequence https://leetcode.com/problems/find-minimum-in-rotated-sorted-array
164 621 516 Task Scheduler Longest Palindromic Subsequence 50.1% 53.2% Medium Medium 0.014546980601820143 0.014931221774984842 https://leetcode.com/problems/task-scheduler https://leetcode.com/problems/longest-palindromic-subsequence
165 301 621 Remove Invalid Parentheses Task Scheduler 43.3% 50.1% Hard Medium 0.01446679841775339 0.014546980601820143 https://leetcode.com/problems/remove-invalid-parentheses https://leetcode.com/problems/task-scheduler
166 109 301 Convert Sorted List to Binary Search Tree Remove Invalid Parentheses 47.7% 43.3% Medium Hard 0.014440684154794336 0.01446679841775339 https://leetcode.com/problems/convert-sorted-list-to-binary-search-tree https://leetcode.com/problems/remove-invalid-parentheses
167 912 109 Sort an Array Convert Sorted List to Binary Search Tree 63.9% 47.7% Medium Medium 0.01443026482902881 0.014440684154794336 https://leetcode.com/problems/sort-an-array https://leetcode.com/problems/convert-sorted-list-to-binary-search-tree
168 202 912 Happy Number Sort an Array 50.4% 63.9% Easy Medium 0.014045174703047602 0.01443026482902881 https://leetcode.com/problems/happy-number https://leetcode.com/problems/sort-an-array
169 404 202 Sum of Left Leaves Happy Number 50.9% 50.4% Easy Easy 0.013981353230340547 0.014045174703047602 https://leetcode.com/problems/sum-of-left-leaves https://leetcode.com/problems/happy-number
170 24 404 Swap Nodes in Pairs Sum of Left Leaves 50.4% 50.9% Medium Easy 0.013945066390122038 0.013981353230340547 https://leetcode.com/problems/swap-nodes-in-pairs https://leetcode.com/problems/sum-of-left-leaves
171 443 24 String Compression Swap Nodes in Pairs 41.3% 50.4% Easy Medium 0.01390843004613198 0.013945066390122038 https://leetcode.com/problems/string-compression https://leetcode.com/problems/swap-nodes-in-pairs
172 724 443 Find Pivot Index String Compression 44.0% 41.3% Easy Easy 0.013850636933899008 0.01390843004613198 https://leetcode.com/problems/find-pivot-index https://leetcode.com/problems/string-compression
173 329 724 Longest Increasing Path in a Matrix Find Pivot Index 43.4% 44.0% Hard Easy 0.013400535537482126 0.013850636933899008 https://leetcode.com/problems/longest-increasing-path-in-a-matrix https://leetcode.com/problems/find-pivot-index
174 347 329 Top K Frequent Elements Longest Increasing Path in a Matrix 61.2% 43.4% Medium Hard 0.01329217620893675 0.013400535537482126 https://leetcode.com/problems/top-k-frequent-elements https://leetcode.com/problems/longest-increasing-path-in-a-matrix
175 219 347 Contains Duplicate II Top K Frequent Elements 37.7% 61.2% Easy Medium 0.01276748910345265 0.01329217620893675 https://leetcode.com/problems/contains-duplicate-ii https://leetcode.com/problems/top-k-frequent-elements
176 852 219 Peak Index in a Mountain Array Contains Duplicate II 71.6% 37.7% Easy Easy 0.012618463959211509 0.01276748910345265 https://leetcode.com/problems/peak-index-in-a-mountain-array https://leetcode.com/problems/contains-duplicate-ii
177 152 852 Maximum Product Subarray Peak Index in a Mountain Array 31.7% 71.6% Medium Easy 0.012534983069696118 0.012618463959211509 https://leetcode.com/problems/maximum-product-subarray https://leetcode.com/problems/peak-index-in-a-mountain-array
178 112 152 Path Sum Maximum Product Subarray 41.2% 31.7% Easy Medium 0.012265076074932503 0.012534983069696118 https://leetcode.com/problems/path-sum https://leetcode.com/problems/maximum-product-subarray
179 437 112 Path Sum III Path Sum 47.2% 41.2% Medium Easy 0.012128711446614806 0.012265076074932503 https://leetcode.com/problems/path-sum-iii https://leetcode.com/problems/path-sum
180 9 437 Palindrome Number Path Sum III 48.4% 47.2% Easy Medium 0.01209661684713821 0.012128711446614806 https://leetcode.com/problems/palindrome-number https://leetcode.com/problems/path-sum-iii
181 273 9 Integer to English Words Palindrome Number 27.1% 48.4% Hard Easy 0.012081089250339716 0.01209661684713821 https://leetcode.com/problems/integer-to-english-words https://leetcode.com/problems/palindrome-number
182 81 273 Search in Rotated Sorted Array II Integer to English Words 33.0% 27.1% Medium Hard 0.011689203815677656 0.012081089250339716 https://leetcode.com/problems/search-in-rotated-sorted-array-ii https://leetcode.com/problems/integer-to-english-words
183 123 81 Best Time to Buy and Sell Stock III Search in Rotated Sorted Array II 37.5% 33.0% Hard Medium 0.011261380272539033 0.011689203815677656 https://leetcode.com/problems/best-time-to-buy-and-sell-stock-iii https://leetcode.com/problems/search-in-rotated-sorted-array-ii
184 232 123 Implement Queue using Stacks Best Time to Buy and Sell Stock III 49.6% 37.5% Easy Hard 0.011242389348933884 0.011261380272539033 https://leetcode.com/problems/implement-queue-using-stacks https://leetcode.com/problems/best-time-to-buy-and-sell-stock-iii
185 171 232 Excel Sheet Column Number Implement Queue using Stacks 55.9% 49.6% Easy Easy 0.011195191092491645 0.011242389348933884 https://leetcode.com/problems/excel-sheet-column-number https://leetcode.com/problems/implement-queue-using-stacks
186 207 171 Course Schedule Excel Sheet Column Number 43.1% 55.9% Medium Easy 0.01113459480911671 0.011195191092491645 https://leetcode.com/problems/course-schedule https://leetcode.com/problems/excel-sheet-column-number
187 268 207 Missing Number Course Schedule 51.7% 43.1% Easy Medium 0.010947682628191997 0.01113459480911671 https://leetcode.com/problems/missing-number https://leetcode.com/problems/course-schedule
188 338 268 Counting Bits Missing Number 69.5% 51.7% Medium Easy 0.01088446119842327 0.010947682628191997 https://leetcode.com/problems/counting-bits https://leetcode.com/problems/missing-number
189 236 338 Lowest Common Ancestor of a Binary Tree Counting Bits 45.7% 69.5% Medium Medium 0.010575891759058162 0.01088446119842327 https://leetcode.com/problems/lowest-common-ancestor-of-a-binary-tree https://leetcode.com/problems/counting-bits
190 572 236 Subtree of Another Tree Lowest Common Ancestor of a Binary Tree 44.1% 45.7% Easy Medium 0.01045487829263024 0.010575891759058162 https://leetcode.com/problems/subtree-of-another-tree https://leetcode.com/problems/lowest-common-ancestor-of-a-binary-tree
191 47 572 Permutations II Subtree of Another Tree 46.4% 44.1% Medium Easy 0.009673594178378379 0.01045487829263024 https://leetcode.com/problems/permutations-ii https://leetcode.com/problems/subtree-of-another-tree
192 40 47 Combination Sum II Permutations II 48.2% 46.4% Medium Medium 0.009578617297069781 0.009673594178378379 https://leetcode.com/problems/combination-sum-ii https://leetcode.com/problems/permutations-ii
193 34 40 Find First and Last Position of Element in Sorted Array Combination Sum II 36.2% 48.2% Medium Medium 0.009531951009811851 0.009578617297069781 https://leetcode.com/problems/find-first-and-last-position-of-element-in-sorted-array https://leetcode.com/problems/combination-sum-ii
194 96 34 Unique Binary Search Trees Find First and Last Position of Element in Sorted Array 52.9% 36.2% Medium Medium 0.009242209964820877 0.009531951009811851 https://leetcode.com/problems/unique-binary-search-trees https://leetcode.com/problems/find-first-and-last-position-of-element-in-sorted-array
195 392 96 Is Subsequence Unique Binary Search Trees 49.2% 52.9% Easy Medium 0.009088906012344746 0.009242209964820877 https://leetcode.com/problems/is-subsequence https://leetcode.com/problems/unique-binary-search-trees
196 215 392 Kth Largest Element in an Array Is Subsequence 55.4% 49.2% Medium Easy 0.008759180089881562 0.009088906012344746 https://leetcode.com/problems/kth-largest-element-in-an-array https://leetcode.com/problems/is-subsequence
197 63 215 Unique Paths II Kth Largest Element in an Array 34.6% 55.4% Medium Medium 0.008712753874961187 0.008759180089881562 https://leetcode.com/problems/unique-paths-ii https://leetcode.com/problems/kth-largest-element-in-an-array
198 198 63 House Robber Unique Paths II 42.0% 34.6% Easy Medium 0.008434914115059812 0.008712753874961187 https://leetcode.com/problems/house-robber https://leetcode.com/problems/unique-paths-ii
199 617 198 Merge Two Binary Trees House Robber 74.1% 42.0% Easy Easy 0.008262802639833214 0.008434914115059812 https://leetcode.com/problems/merge-two-binary-trees https://leetcode.com/problems/house-robber
200 239 617 Sliding Window Maximum Merge Two Binary Trees 43.0% 74.1% Hard Easy 0.007898935224534491 0.008262802639833214 https://leetcode.com/problems/sliding-window-maximum https://leetcode.com/problems/merge-two-binary-trees
201 122 239 Best Time to Buy and Sell Stock II Sliding Window Maximum 57.0% 43.0% Easy Hard 0.007532046655581962 0.007898935224534491 https://leetcode.com/problems/best-time-to-buy-and-sell-stock-ii https://leetcode.com/problems/sliding-window-maximum
202 16 122 3Sum Closest Best Time to Buy and Sell Stock II 46.0% 57.0% Medium Easy 0.0075259057003469075 0.007532046655581962 https://leetcode.com/problems/3sum-closest https://leetcode.com/problems/best-time-to-buy-and-sell-stock-ii
203 14 16 Longest Common Prefix 3Sum Closest 35.4% 46.0% Easy Medium 0.00745530292090591 0.0075259057003469075 https://leetcode.com/problems/longest-common-prefix https://leetcode.com/problems/3sum-closest
204 7 14 Reverse Integer Longest Common Prefix 25.8% 35.4% Easy Easy 0.007424283556794391 0.00745530292090591 https://leetcode.com/problems/reverse-integer https://leetcode.com/problems/longest-common-prefix
205 176 7 Second Highest Salary Reverse Integer 31.6% 25.8% Easy Easy 0.007393749024938284 0.007424283556794391 https://leetcode.com/problems/second-highest-salary https://leetcode.com/problems/reverse-integer
206 344 176 Reverse String Second Highest Salary 68.5% 31.6% Easy Easy 0.00734157796234515 0.007393749024938284 https://leetcode.com/problems/reverse-string https://leetcode.com/problems/second-highest-salary
207 36 344 Valid Sudoku Reverse String 48.7% 68.5% Medium Easy 0.007258242715805398 0.00734157796234515 https://leetcode.com/problems/valid-sudoku https://leetcode.com/problems/reverse-string
208 349 36 Intersection of Two Arrays Valid Sudoku 62.5% 48.7% Easy Medium 0.00725034896230682 0.007258242715805398 https://leetcode.com/problems/intersection-of-two-arrays https://leetcode.com/problems/valid-sudoku
209 412 349 Fizz Buzz Intersection of Two Arrays 62.3% 62.5% Easy Easy 0.007165921026143679 0.00725034896230682 https://leetcode.com/problems/fizz-buzz https://leetcode.com/problems/intersection-of-two-arrays
210 110 412 Balanced Binary Tree Fizz Buzz 43.5% 62.3% Easy Easy 0.007027435807456887 0.007165921026143679 https://leetcode.com/problems/balanced-binary-tree https://leetcode.com/problems/fizz-buzz
211 19 110 Remove Nth Node From End of List Balanced Binary Tree 35.2% 43.5% Medium Easy 0.0069087555063702365 0.007027435807456887 https://leetcode.com/problems/remove-nth-node-from-end-of-list https://leetcode.com/problems/balanced-binary-tree
212 11 19 Container With Most Water Remove Nth Node From End of List 50.8% 35.2% Medium Medium 0.006889188300412141 0.0069087555063702365 https://leetcode.com/problems/container-with-most-water https://leetcode.com/problems/remove-nth-node-from-end-of-list
213 448 11 Find All Numbers Disappeared in an Array Container With Most Water 55.9% 50.8% Easy Medium 0.006863444924982415 0.006889188300412141 https://leetcode.com/problems/find-all-numbers-disappeared-in-an-array https://leetcode.com/problems/container-with-most-water
214 54 448 Spiral Matrix Find All Numbers Disappeared in an Array 34.1% 55.9% Medium Easy 0.0065941551175130245 0.006863444924982415 https://leetcode.com/problems/spiral-matrix https://leetcode.com/problems/find-all-numbers-disappeared-in-an-array
215 203 54 Remove Linked List Elements Spiral Matrix 38.6% 34.1% Easy Medium 0.006479067005887776 0.0065941551175130245 https://leetcode.com/problems/remove-linked-list-elements https://leetcode.com/problems/spiral-matrix
216 162 203 Find Peak Element Remove Linked List Elements 43.3% 38.6% Medium Easy 0.006350235659345837 0.006479067005887776 https://leetcode.com/problems/find-peak-element https://leetcode.com/problems/remove-linked-list-elements
217 230 162 Kth Smallest Element in a BST Find Peak Element 60.2% 43.3% Medium Medium 0.0063361529894967236 0.006350235659345837 https://leetcode.com/problems/kth-smallest-element-in-a-bst https://leetcode.com/problems/find-peak-element
218 104 230 Maximum Depth of Binary Tree Kth Smallest Element in a BST 66.0% 60.2% Easy Medium 0.006261761223976207 0.0063361529894967236 https://leetcode.com/problems/maximum-depth-of-binary-tree https://leetcode.com/problems/kth-smallest-element-in-a-bst
219 144 104 Binary Tree Preorder Traversal Maximum Depth of Binary Tree 55.7% 66.0% Medium Easy 0.0060975798681185 0.006261761223976207 https://leetcode.com/problems/binary-tree-preorder-traversal https://leetcode.com/problems/maximum-depth-of-binary-tree
220 91 144 Decode Ways Binary Tree Preorder Traversal 24.7% 55.7% Medium Medium 0.005968385368349129 0.0060975798681185 https://leetcode.com/problems/decode-ways https://leetcode.com/problems/binary-tree-preorder-traversal
221 39 91 Combination Sum Decode Ways 56.1% 24.7% Medium Medium 0.005715934396440999 0.005968385368349129 https://leetcode.com/problems/combination-sum https://leetcode.com/problems/decode-ways
222 50 39 Pow(x;n) Combination Sum 30.3% 56.1% Medium Medium 0.0055950070772402055 0.005715934396440999 https://leetcode.com/problems/powx-n https://leetcode.com/problems/combination-sum
223 108 50 Convert Sorted Array to Binary Search Tree Pow(x;n) 57.9% 30.3% Easy Medium 0.005554027051374908 0.0055950070772402055 https://leetcode.com/problems/convert-sorted-array-to-binary-search-tree https://leetcode.com/problems/powx-n
224 124 108 Binary Tree Maximum Path Sum Convert Sorted Array to Binary Search Tree 34.3% 57.9% Hard Easy 0.005531752454833179 0.005554027051374908 https://leetcode.com/problems/binary-tree-maximum-path-sum https://leetcode.com/problems/convert-sorted-array-to-binary-search-tree
225 287 124 Find the Duplicate Number Binary Tree Maximum Path Sum 55.5% 34.3% Medium Hard 0.005501320434837602 0.005531752454833179 https://leetcode.com/problems/find-the-duplicate-number https://leetcode.com/problems/binary-tree-maximum-path-sum
226 543 287 Diameter of Binary Tree Find the Duplicate Number 48.4% 55.5% Easy Medium 0.005305755914149804 0.005501320434837602 https://leetcode.com/problems/diameter-of-binary-tree https://leetcode.com/problems/find-the-duplicate-number
227 237 543 Delete Node in a Linked List Diameter of Binary Tree 63.8% 48.4% Easy Easy 0.005144705881237697 0.005305755914149804 https://leetcode.com/problems/delete-node-in-a-linked-list https://leetcode.com/problems/diameter-of-binary-tree
228 55 237 Jump Game Delete Node in a Linked List 34.6% 63.8% Medium Easy 0.005022612266291382 0.005144705881237697 https://leetcode.com/problems/jump-game https://leetcode.com/problems/delete-node-in-a-linked-list
229 75 55 Sort Colors Jump Game 47.3% 34.6% Medium Medium 0.004992521603120986 0.005022612266291382 https://leetcode.com/problems/sort-colors https://leetcode.com/problems/jump-game
230 62 75 Unique Paths Sort Colors 54.1% 47.3% Medium Medium 0.004621080312067025 0.004992521603120986 https://leetcode.com/problems/unique-paths https://leetcode.com/problems/sort-colors
231 17 62 Letter Combinations of a Phone Number Unique Paths 46.8% 54.1% Medium Medium 0.0044018999217624675 0.004621080312067025 https://leetcode.com/problems/letter-combinations-of-a-phone-number https://leetcode.com/problems/unique-paths
232 26 17 Remove Duplicates from Sorted Array Letter Combinations of a Phone Number 45.1% 46.8% Easy Medium 0.004385117141850828 0.0044018999217624675 https://leetcode.com/problems/remove-duplicates-from-sorted-array https://leetcode.com/problems/letter-combinations-of-a-phone-number
233 28 26 Implement strStr() Remove Duplicates from Sorted Array 34.5% 45.1% Easy Easy 0.003943222775040032 0.004385117141850828 https://leetcode.com/problems/implement-strstr https://leetcode.com/problems/remove-duplicates-from-sorted-array
234 238 28 Product of Array Except Self Implement strStr() 60.1% 34.5% Medium Easy 0.003930436424724545 0.003943222775040032 https://leetcode.com/problems/product-of-array-except-self https://leetcode.com/problems/implement-strstr
235 977 238 Squares of a Sorted Array Product of Array Except Self 72.1% 60.1% Easy Medium 0.003891055492966611 0.003930436424724545 https://leetcode.com/problems/squares-of-a-sorted-array https://leetcode.com/problems/product-of-array-except-self
236 27 977 Remove Element Squares of a Sorted Array 48.2% 72.1% Easy Easy 0.0035524016043678225 0.003891055492966611 https://leetcode.com/problems/remove-element https://leetcode.com/problems/squares-of-a-sorted-array
237 94 27 Binary Tree Inorder Traversal Remove Element 63.3% 48.2% Medium Easy 0.0033551449021403577 0.0035524016043678225 https://leetcode.com/problems/binary-tree-inorder-traversal https://leetcode.com/problems/remove-element
238 1480 94 Running Sum of 1d Array Binary Tree Inorder Traversal 90.5% 63.3% Easy Medium 0.0026196884456014947 0.0033551449021403577 https://leetcode.com/problems/running-sum-of-1d-array https://leetcode.com/problems/binary-tree-inorder-traversal
239 206 1480 Reverse Linked List Running Sum of 1d Array 62.5% 90.5% Easy Easy 0.0023398665252948926 0.0026196884456014947 https://leetcode.com/problems/reverse-linked-list https://leetcode.com/problems/running-sum-of-1d-array
240 258 206 Add Digits Reverse Linked List 57.6% 62.5% Easy Easy 0.0020686809197766587 0.0023398665252948926 https://leetcode.com/problems/add-digits https://leetcode.com/problems/reverse-linked-list
241 70 258 Climbing Stairs Add Digits 47.8% 57.6% Easy Easy 0.0015084665529624085 0.0020686809197766587 https://leetcode.com/problems/climbing-stairs https://leetcode.com/problems/add-digits
242 100 70 Same Tree Climbing Stairs 53.4% 47.8% Easy Easy 0.0014080047382258295 0.0015084665529624085 https://leetcode.com/problems/same-tree https://leetcode.com/problems/climbing-stairs
243 100 Same Tree 53.4% Easy 0.0014080047382258295 https://leetcode.com/problems/same-tree