Top_LeetCode_Questions_By_Company.md

Questions by Companies

Google

	#	Title	Acceptance	Difficulty	Frequency
	359	Logger Rate Limiter	75.8%	Easy
	715	Range Module	44.2%	Hard
	1110	Delete Nodes And Return Forest	69.2%	Medium
	2402	Meeting Rooms III	44.9%	Hard
	939	Minimum Area Rectangle	53.5%	Medium
	1825	Finding MK Average	36.7%	Hard
	1101	The Earliest Moment When Everyone Become Friends	64.5%	Medium
	2700	Differences Between Two Objects	78.8%	Medium
	2265	Count Nodes Equal to Average of Subtree	86.4%	Medium
	1136	Parallel Courses	61.4%	Medium
	2458	Height of Binary Tree After Subtree Removal Queries	40.1%	Hard
	2437	Number of Valid Clock Times	46.2%	Easy
	975	Odd Even Jump	39.8%	Hard
	85	Maximal Rectangle	49.4%	Hard
	2667	Create Hello World Function	81.2%	Easy
	2863	Maximum Length of Semi-Decreasing Subarrays	72.3%	Medium
	1307	Verbal Arithmetic Puzzle	34.0%	Hard
	1125	Smallest Sufficient Team	55.9%	Hard
	2973	Find Number of Coins to Place in Tree Nodes	35.3%	Hard
	365	Water and Jug Problem	40.2%	Medium
	2101	Detonate the Maximum Bombs	48.7%	Medium
	900	RLE Iterator	59.5%	Medium
	2184	Number of Ways to Build Sturdy Brick Wall	50.0%	Medium
	362	Design Hit Counter	68.6%	Medium
	564	Find the Closest Palindrome	22.3%	Hard
	655	Print Binary Tree	63.4%	Medium
	833	Find And Replace in String	52.8%	Medium
	2709	Greatest Common Divisor Traversal	42.8%	Hard
	679	24 Game	49.3%	Hard
	2013	Detect Squares	50.8%	Medium
	1834	Single-Threaded CPU	45.5%	Medium
	315	Count of Smaller Numbers After Self	42.4%	Hard
	2116	Check if a Parentheses String Can Be Valid	31.6%	Medium
	146	LRU Cache	42.4%	Medium
	681	Next Closest Time	46.6%	Medium
	424	Longest Repeating Character Replacement	53.7%	Medium
	759	Employee Free Time	72.1%	Hard
	1168	Optimize Water Distribution in a Village	64.7%	Hard
	417	Pacific Atlantic Water Flow	55.2%	Medium
	1	Two Sum	52.3%	Easy
	470	Implement Rand10() Using Rand7()	46.0%	Medium
	68	Text Justification	43.2%	Hard
	418	Sentence Screen Fitting	36.1%	Medium
	2316	Count Unreachable Pairs of Nodes in an Undirected Graph	49.5%	Medium
	2713	Maximum Strictly Increasing Cells in a Matrix	30.2%	Hard
	428	Serialize and Deserialize N-ary Tree	66.9%	Hard
	2982	Find Longest Special Substring That Occurs Thrice II	33.0%	Medium
	1509	Minimum Difference Between Largest and Smallest Value in Three Moves	55.0%	Medium
	834	Sum of Distances in Tree	59.3%	Hard
	247	Strobogrammatic Number II	52.2%	Medium
	1727	Largest Submatrix With Rearrangements	75.3%	Medium
	690	Employee Importance	66.7%	Medium
	721	Accounts Merge	57.1%	Medium
	1730	Shortest Path to Get Food	54.7%	Medium
	295	Find Median from Data Stream	51.9%	Hard
	1425	Constrained Subsequence Sum	56.7%	Hard
	1793	Maximum Score of a Good Subarray	64.4%	Hard
	2290	Minimum Obstacle Removal to Reach Corner	52.7%	Hard
	2407	Longest Increasing Subsequence II	23.2%	Hard
	642	Design Search Autocomplete System	48.9%	Hard
	300	Longest Increasing Subsequence	55.2%	Medium
	459	Repeated Substring Pattern	46.1%	Easy
	346	Moving Average from Data Stream	78.2%	Easy
	2235	Add Two Integers	87.6%	Easy
	685	Redundant Connection II	34.4%	Hard
	329	Longest Increasing Path in a Matrix	53.5%	Hard
	410	Split Array Largest Sum	55.2%	Hard
	729	My Calendar I	56.5%	Medium
	72	Edit Distance	56.3%	Medium
	446	Arithmetic Slices II - Subsequence	54.6%	Hard
	490	The Maze	57.8%	Medium
	843	Guess the Word	39.4%	Hard
	380	Insert Delete GetRandom O(1)	54.4%	Medium
	1361	Validate Binary Tree Nodes	44.0%	Medium
	388	Longest Absolute File Path	47.2%	Medium
	200	Number of Islands	58.8%	Medium
	588	Design In-Memory File System	48.1%	Hard
	878	Nth Magical Number	35.3%	Hard
	323	Number of Connected Components in an Undirected Graph	62.8%	Medium
	1768	Merge Strings Alternately	79.7%	Easy
	650	2 Keys Keyboard	54.1%	Medium
	1352	Product of the Last K Numbers	51.1%	Medium
	1218	Longest Arithmetic Subsequence of Given Difference	54.8%	Medium
	3	Longest Substring Without Repeating Characters	34.7%	Medium
	88	Merge Sorted Array	49.5%	Easy
	862	Shortest Subarray with Sum at Least K	26.0%	Hard
	406	Queue Reconstruction by Height	73.4%	Medium
	1630	Arithmetic Subarrays	83.8%	Medium
	1235	Maximum Profit in Job Scheduling	54.6%	Hard
	413	Arithmetic Slices	65.0%	Medium
	980	Unique Paths III	81.7%	Hard
	1146	Snapshot Array	37.0%	Medium
	1043	Partition Array for Maximum Sum	76.5%	Medium
	1048	Longest String Chain	61.0%	Medium
	778	Swim in Rising Water	60.6%	Hard
	1980	Find Unique Binary String	74.6%	Medium
	2	Add Two Numbers	42.7%	Medium
	767	Reorganize String	54.5%	Medium
	4	Median of Two Sorted Arrays	39.8%	Hard
	269	Alien Dictionary	35.7%	Hard
	1254	Number of Closed Islands	66.4%	Medium
	399	Evaluate Division	61.6%	Medium
	163	Missing Ranges	33.6%	Easy
	2035	Partition Array Into Two Arrays to Minimize Sum Difference	20.1%	Hard
	528	Random Pick with Weight	46.7%	Medium
	322	Coin Change	43.8%	Medium
	1642	Furthest Building You Can Reach	49.7%	Medium
	1004	Max Consecutive Ones III	62.9%	Medium
	2958	Length of Longest Subarray With at Most K Frequency	55.7%	Medium
	416	Partition Equal Subset Sum	46.2%	Medium
	253	Meeting Rooms II	51.2%	Medium
	832	Flipping an Image	81.8%	Easy
	1438	Longest Continuous Subarray With Absolute Diff Less Than or Equal to Limit	49.2%	Medium
	518	Coin Change II	63.8%	Medium
	208	Implement Trie (Prefix Tree)	65.0%	Medium
	71	Simplify Path	42.2%	Medium
	1631	Path With Minimum Effort	59.4%	Medium
	37	Sudoku Solver	60.9%	Hard
	560	Subarray Sum Equals K	43.5%	Medium
	395	Longest Substring with At Least K Repeating Characters	45.0%	Medium
	5	Longest Palindromic Substring	33.8%	Medium
	41	First Missing Positive	39.4%	Hard
	33	Search in Rotated Sorted Array	40.7%	Medium
	84	Largest Rectangle in Histogram	44.3%	Hard
	56	Merge Intervals	47.2%	Medium
	11	Container With Most Water	55.1%	Medium
	22	Generate Parentheses	74.4%	Medium
	89	Gray Code	59.1%	Medium
	501	Find Mode in Binary Search Tree	56.0%	Easy
	17	Letter Combinations of a Phone Number	60.3%	Medium
	18	4Sum	36.2%	Medium
	15	3Sum	34.4%	Medium
	70	Climbing Stairs	52.9%	Easy
	128	Longest Consecutive Sequence	47.3%	Medium
	1930	Unique Length-3 Palindromic Subsequences	66.0%	Medium
	1838	Frequency of the Most Frequent Element	45.1%	Medium
	1436	Destination City	79.6%	Easy
	1472	Design Browser History	77.5%	Medium
	2723	Add Two Promises	90.8%	Easy
	39	Combination Sum	71.3%	Medium
	394	Decode String	59.1%	Medium
	13	Roman to Integer	61.1%	Easy
	312	Burst Balloons	58.7%	Hard
	14	Longest Common Prefix	42.7%	Easy
	283	Move Zeroes	61.7%	Easy
	875	Koko Eating Bananas	48.9%	Medium
	49	Group Anagrams	68.4%	Medium
	178	Rank Scores	62.2%	Medium
	981	Time Based Key-Value Store	49.5%	Medium
	189	Rotate Array	40.5%	Medium
	121	Best Time to Buy and Sell Stock	53.6%	Easy
	42	Trapping Rain Water	61.8%	Hard
	670	Maximum Swap	48.6%	Medium
	21	Merge Two Sorted Lists	64.2%	Easy
	451	Sort Characters By Frequency	72.5%	Medium
	1164	Product Price at a Given Date	55.4%	Medium
	210	Course Schedule II	50.3%	Medium
	316	Remove Duplicate Letters	49.6%	Medium
	48	Rotate Image	74.2%	Medium
	257	Binary Tree Paths	63.5%	Easy
	493	Reverse Pairs	30.6%	Hard
	226	Invert Binary Tree	76.9%	Easy
	20	Valid Parentheses	40.5%	Easy
	1047	Remove All Adjacent Duplicates In String	69.4%	Easy
	7	Reverse Integer	28.5%	Medium
	150	Evaluate Reverse Polish Notation	51.3%	Medium
	57	Insert Interval	41.4%	Medium
	542	01 Matrix	48.3%	Medium
	621	Task Scheduler	59.9%	Medium
	2877	Create a DataFrame from List	81.0%	Easy
	739	Daily Temperatures	66.0%	Medium
	1423	Maximum Points You Can Obtain from Cards	52.5%	Medium
	796	Rotate String	58.0%	Easy
	455	Assign Cookies	52.7%	Easy
	904	Fruit Into Baskets	44.2%	Medium
	19	Remove Nth Node From End of List	45.2%	Medium
	118	Pascal's Triangle	74.1%	Easy
	930	Binary Subarrays With Sum	62.1%	Medium
	26	Remove Duplicates from Sorted Array	55.4%	Easy
	234	Palindrome Linked List	53.1%	Easy
	733	Flood Fill	63.8%	Easy
	169	Majority Element	64.8%	Easy
	853	Car Fleet	50.9%	Medium
	67	Add Binary	53.5%	Easy
	44	Wildcard Matching	27.9%	Hard
	217	Contains Duplicate	61.6%	Easy
	35	Search Insert Position	45.8%	Easy
	104	Maximum Depth of Binary Tree	75.3%	Easy
	743	Network Delay Time	53.6%	Medium
	207	Course Schedule	46.7%	Medium
	1456	Maximum Number of Vowels in a Substring of Given Length	58.4%	Medium
	127	Word Ladder	39.1%	Hard
	543	Diameter of Binary Tree	60.2%	Easy
	229	Majority Element II	51.4%	Medium
	51	N-Queens	68.0%	Hard
	91	Decode Ways	34.8%	Medium
	2149	Rearrange Array Elements by Sign	84.0%	Medium
	387	First Unique Character in a String	62.1%	Easy
	485	Max Consecutive Ones	58.9%	Easy
	409	Longest Palindrome	53.9%	Easy
	94	Binary Tree Inorder Traversal	76.0%	Easy
	567	Permutation in String	44.3%	Medium
	135	Candy	43.3%	Hard
	50	Pow(x, n)	34.7%	Medium
	153	Find Minimum in Rotated Sorted Array	50.3%	Medium
	143	Reorder List	58.5%	Medium
	69	Sqrt(x)	38.7%	Easy
	412	Fizz Buzz	72.0%	Easy
	198	House Robber	51.0%	Medium
	90	Subsets II	57.2%	Medium
	138	Copy List with Random Pointer	55.9%	Medium
	1480	Running Sum of 1d Array	86.7%	Easy
	1148	Article Views I	75.0%	Easy
	977	Squares of a Sorted Array	72.8%	Easy
	10	Regular Expression Matching	28.1%	Hard
	239	Sliding Window Maximum	46.5%	Hard
	2356	Number of Unique Subjects Taught by Each Teacher	87.5%	Easy
	66	Plus One	45.2%	Easy
	8	String to Integer (atoi)	17.2%	Medium
	76	Minimum Window Substring	42.9%	Hard
	202	Happy Number	56.0%	Easy
	175	Combine Two Tables	75.8%	Easy
	205	Isomorphic Strings	45.1%	Easy
	28	Find the Index of the First Occurrence in a String	42.2%	Easy
	9	Palindrome Number	56.2%	Easy
	570	Managers with at Least 5 Direct Reports	50.7%	Medium
	577	Employee Bonus	74.9%	Easy
	100	Same Tree	62.0%	Easy
	287	Find the Duplicate Number	60.7%	Medium
	290	Word Pattern	42.0%	Easy
	101	Symmetric Tree	56.4%	Easy
	162	Find Peak Element	45.9%	Medium
	238	Product of Array Except Self	66.1%	Medium
	79	Word Search	42.7%	Medium
	206	Reverse Linked List	76.4%	Easy
	73	Set Matrix Zeroes	55.4%	Medium
	199	Binary Tree Right Side View	63.0%	Medium
	584	Find Customer Referee	69.7%	Easy
	36	Valid Sudoku	59.6%	Medium
	197	Rising Temperature	47.2%	Easy
	34	Find First and Last Position of Element in Sorted Array	44.2%	Medium
	102	Binary Tree Level Order Traversal	67.1%	Medium
	74	Search a 2D Matrix	50.0%	Medium
	1757	Recyclable and Low Fat Products	89.2%	Easy
	1378	Replace Employee ID With The Unique Identifier	82.8%	Easy
	268	Missing Number	66.7%	Easy
	392	Is Subsequence	47.9%	Easy
	27	Remove Element	56.6%	Easy
	75	Sort Colors	62.1%	Medium
	58	Length of Last Word	51.3%	Easy
	876	Middle of the Linked List	78.3%	Easy
	347	Top K Frequent Elements	62.7%	Medium
	136	Single Number	72.8%	Easy
	55	Jump Game	38.5%	Medium
	53	Maximum Subarray	50.7%	Medium
	141	Linked List Cycle	50.3%	Easy
	125	Valid Palindrome	47.3%	Easy
	402	Remove K Digits	33.5%	Medium

Amazon

	#	Title	Acceptance	Difficulty	Frequency
	2781	Length of the Longest Valid Substring	36.4%	Hard
	2340	Minimum Adjacent Swaps to Make a Valid Array	72.9%	Medium
	1152	Analyze User Website Visit Pattern	42.8%	Medium
	767	Reorganize String	54.5%	Medium
	2268	Minimum Number of Keypresses	71.1%	Medium
	2055	Plates Between Candles	44.3%	Medium
	2870	Minimum Number of Operations to Make Array Empty	62.0%	Medium
	472	Concatenated Words	49.5%	Hard
	146	LRU Cache	42.4%	Medium
	127	Word Ladder	39.1%	Hard
	2288	Apply Discount to Prices	29.5%	Medium
	1	Two Sum	52.3%	Easy
	200	Number of Islands	58.8%	Medium
	2281	Sum of Total Strength of Wizards	27.7%	Hard
	1063	Number of Valid Subarrays	78.4%	Hard
	140	Word Break II	47.9%	Hard
	791	Custom Sort String	70.6%	Medium
	210	Course Schedule II	50.3%	Medium
	1531	String Compression II	52.7%	Hard
	88	Merge Sorted Array	49.5%	Easy
	49	Group Anagrams	68.4%	Medium
	4	Median of Two Sorted Arrays	39.8%	Hard
	23	Merge k Sorted Lists	52.6%	Hard
	22	Generate Parentheses	74.4%	Medium
	2357	Make Array Zero by Subtracting Equal Amounts	72.3%	Easy
	1220	Count Vowels Permutation	62.0%	Hard
	1496	Path Crossing	62.4%	Easy
	11	Container With Most Water	55.1%	Medium
	207	Course Schedule	46.7%	Medium
	2519	Count the Number of K-Big Indices	53.5%	Hard
	1897	Redistribute Characters to Make All Strings Equal	67.6%	Easy
	545	Boundary of Binary Tree	45.3%	Medium
	1846	Maximum Element After Decreasing and Rearranging	65.9%	Medium
	2	Add Two Numbers	42.7%	Medium
	295	Find Median from Data Stream	51.9%	Hard
	56	Merge Intervals	47.2%	Medium
	5	Longest Palindromic Substring	33.8%	Medium
	2355	Maximum Number of Books You Can Take	40.9%	Hard
	632	Smallest Range Covering Elements from K Lists	62.4%	Hard
	48	Rotate Image	74.2%	Medium
	1457	Pseudo-Palindromic Paths in a Binary Tree	68.4%	Medium
	1209	Remove All Adjacent Duplicates in String II	57.6%	Medium
	2904	Shortest and Lexicographically Smallest Beautiful String	38.4%	Medium
	347	Top K Frequent Elements	62.7%	Medium
	2256	Minimum Average Difference	43.0%	Medium
	42	Trapping Rain Water	61.8%	Hard
	1529	Minimum Suffix Flips	73.3%	Medium
	935	Knight Dialer	60.0%	Medium
	20	Valid Parentheses	40.5%	Easy
	236	Lowest Common Ancestor of a Binary Tree	62.0%	Medium
	515	Find Largest Value in Each Tree Row	65.7%	Medium
	227	Basic Calculator II	43.5%	Medium
	847	Shortest Path Visiting All Nodes	65.5%	Hard
	3	Longest Substring Without Repeating Characters	34.7%	Medium
	1727	Largest Submatrix With Rearrangements	75.3%	Medium
	300	Longest Increasing Subsequence	55.2%	Medium
	1083	Sales Analysis II	49.6%	Easy
	215	Kth Largest Element in an Array	66.8%	Medium
	253	Meeting Rooms II	51.2%	Medium
	1082	Sales Analysis I	74.2%	Easy
	1239	Maximum Length of a Concatenated String with Unique Characters	54.1%	Medium
	2667	Create Hello World Function	81.2%	Easy
	238	Product of Array Except Self	66.1%	Medium
	2385	Amount of Time for Binary Tree to Be Infected	62.9%	Medium
	128	Longest Consecutive Sequence	47.3%	Medium
	36	Valid Sudoku	59.6%	Medium
	273	Integer to English Words	30.6%	Hard
	150	Evaluate Reverse Polish Notation	51.3%	Medium
	387	First Unique Character in a String	62.1%	Easy
	1425	Constrained Subsequence Sum	56.7%	Hard
	41	First Missing Positive	39.4%	Hard
	1768	Merge Strings Alternately	79.7%	Easy
	139	Word Break	46.7%	Medium
	907	Sum of Subarray Minimums	37.4%	Medium
	582	Kill Process	69.3%	Medium
	17	Letter Combinations of a Phone Number	60.3%	Medium
	587	Erect the Fence	51.9%	Hard
	642	Design Search Autocomplete System	48.9%	Hard
	812	Largest Triangle Area	60.4%	Easy
	1814	Count Nice Pairs in an Array	49.1%	Medium
	314	Binary Tree Vertical Order Traversal	54.2%	Medium
	287	Find the Duplicate Number	60.7%	Medium
	772	Basic Calculator III	50.5%	Hard
	1044	Longest Duplicate Substring	30.5%	Hard
	1485	Clone Binary Tree With Random Pointer	80.5%	Medium
	1567	Maximum Length of Subarray With Positive Product	44.2%	Medium
	14	Longest Common Prefix	42.7%	Easy
	503	Next Greater Element II	63.8%	Medium
	815	Bus Routes	48.0%	Hard
	2092	Find All People With Secret	45.9%	Hard
	201	Bitwise AND of Numbers Range	46.9%	Medium
	91	Decode Ways	34.8%	Medium
	464	Can I Win	29.7%	Medium
	1291	Sequential Digits	65.3%	Medium
	7	Reverse Integer	28.5%	Medium
	198	House Robber	51.0%	Medium
	525	Contiguous Array	48.9%	Medium
	1043	Partition Array for Maximum Sum	76.5%	Medium
	31	Next Permutation	39.8%	Medium
	458	Poor Pigs	59.7%	Hard
	121	Best Time to Buy and Sell Stock	53.6%	Easy
	1353	Maximum Number of Events That Can Be Attended	32.3%	Medium
	95	Unique Binary Search Trees II	57.6%	Medium
	460	LFU Cache	44.1%	Hard
	55	Jump Game	38.5%	Medium
	13	Roman to Integer	61.1%	Easy
	1095	Find in Mountain Array	40.5%	Hard
	468	Validate IP Address	27.0%	Medium
	10	Regular Expression Matching	28.1%	Hard
	1497	Check If Array Pairs Are Divisible by k	38.4%	Medium
	1361	Validate Binary Tree Nodes	44.0%	Medium
	1186	Maximum Subarray Sum with One Deletion	43.7%	Medium
	888	Fair Candy Swap	61.6%	Easy
	2353	Design a Food Rating System	45.6%	Medium
	2928	Distribute Candies Among Children I	74.8%	Easy
	134	Gas Station	45.5%	Medium
	588	Design In-Memory File System	48.1%	Hard
	779	K-th Symbol in Grammar	46.4%	Medium
	1122	Relative Sort Array	69.0%	Easy
	399	Evaluate Division	61.6%	Medium
	869	Reordered Power of 2	62.8%	Medium
	2134	Minimum Swaps to Group All 1's Together II	52.1%	Medium
	3014	Minimum Number of Pushes to Type Word I	63.2%	Easy
	155	Min Stack	54.1%	Medium
	32	Longest Valid Parentheses	34.1%	Hard
	138	Copy List with Random Pointer	55.9%	Medium
	1235	Maximum Profit in Job Scheduling	54.6%	Hard
	1642	Furthest Building You Can Reach	49.7%	Medium
	875	Koko Eating Bananas	48.9%	Medium
	103	Binary Tree Zigzag Level Order Traversal	58.9%	Medium
	428	Serialize and Deserialize N-ary Tree	66.9%	Hard
	18	4Sum	36.2%	Medium
	1882	Process Tasks Using Servers	40.1%	Medium
	15	3Sum	34.4%	Medium
	53	Maximum Subarray	50.7%	Medium
	430	Flatten a Multilevel Doubly Linked List	60.0%	Medium
	994	Rotting Oranges	54.0%	Medium
	212	Word Search II	36.3%	Hard
	297	Serialize and Deserialize Binary Tree	56.7%	Hard
	54	Spiral Matrix	49.3%	Medium
	997	Find the Town Judge	49.8%	Easy
	84	Largest Rectangle in Histogram	44.3%	Hard
	169	Majority Element	64.8%	Easy
	1003	Check If Word Is Valid After Substitutions	59.4%	Medium
	2405	Optimal Partition of String	78.1%	Medium
	647	Palindromic Substrings	70.1%	Medium
	739	Daily Temperatures	66.0%	Medium
	787	Cheapest Flights Within K Stops	39.3%	Medium
	1750	Minimum Length of String After Deleting Similar Ends	56.1%	Medium
	1572	Matrix Diagonal Sum	82.9%	Easy
	74	Search a 2D Matrix	50.0%	Medium
	554	Brick Wall	54.7%	Medium
	501	Find Mode in Binary Search Tree	56.0%	Easy
	1347	Minimum Number of Steps to Make Two Strings Anagram	82.0%	Medium
	2222	Number of Ways to Select Buildings	50.6%	Medium
	909	Snakes and Ladders	43.8%	Medium
	24	Swap Nodes in Pairs	64.3%	Medium
	695	Max Area of Island	71.9%	Medium
	118	Pascal's Triangle	74.1%	Easy
	349	Intersection of Two Arrays	74.4%	Easy
	606	Construct String from Binary Tree	69.1%	Medium
	380	Insert Delete GetRandom O(1)	54.4%	Medium
	33	Search in Rotated Sorted Array	40.7%	Medium
	233	Number of Digit One	34.6%	Hard
	2540	Minimum Common Value	59.4%	Easy
	719	Find K-th Smallest Pair Distance	37.8%	Hard
	1359	Count All Valid Pickup and Delivery Options	65.1%	Hard
	98	Validate Binary Search Tree	32.9%	Medium
	205	Isomorphic Strings	45.1%	Easy
	1793	Maximum Score of a Good Subarray	64.4%	Hard
	2482	Difference Between Ones and Zeros in Row and Column	84.6%	Medium
	162	Find Peak Element	45.9%	Medium
	706	Design HashMap	65.7%	Easy
	987	Vertical Order Traversal of a Binary Tree	47.4%	Hard
	424	Longest Repeating Character Replacement	53.7%	Medium
	70	Climbing Stairs	52.9%	Easy
	19	Remove Nth Node From End of List	45.2%	Medium
	269	Alien Dictionary	35.7%	Hard
	421	Maximum XOR of Two Numbers in an Array	53.3%	Medium
	202	Happy Number	56.0%	Easy
	1143	Longest Common Subsequence	57.8%	Medium
	262	Trips and Users	36.4%	Hard
	818	Race Car	43.6%	Hard
	621	Task Scheduler	59.9%	Medium
	442	Find All Duplicates in an Array	75.7%	Medium
	981	Time Based Key-Value Store	49.5%	Medium
	983	Minimum Cost For Tickets	65.3%	Medium
	887	Super Egg Drop	27.6%	Hard
	2877	Create a DataFrame from List	81.0%	Easy
	2945	Find Maximum Non-decreasing Array Length	15.3%	Hard
	29	Divide Two Integers	17.4%	Medium
	496	Next Greater Element I	72.1%	Easy
	2932	Maximum Strong Pair XOR I	75.7%	Easy
	560	Subarray Sum Equals K	43.5%	Medium
	729	My Calendar I	56.5%	Medium
	57	Insert Interval	41.4%	Medium
	1207	Unique Number of Occurrences	77.0%	Easy
	446	Arithmetic Slices II - Subsequence	54.6%	Hard
	135	Candy	43.3%	Hard
	475	Heaters	37.7%	Medium
	1287	Element Appearing More Than 25% In Sorted Array	61.1%	Easy
	735	Asteroid Collision	44.5%	Medium
	232	Implement Queue using Stacks	66.2%	Easy
	277	Find the Celebrity	47.2%	Medium
	25	Reverse Nodes in k-Group	58.5%	Hard
	109	Convert Sorted List to Binary Search Tree	61.8%	Medium
	143	Reorder List	58.5%	Medium
	343	Integer Break	60.3%	Medium
	112	Path Sum	50.3%	Easy
	721	Accounts Merge	57.1%	Medium
	733	Flood Fill	63.8%	Easy
	124	Binary Tree Maximum Path Sum	40.0%	Hard
	79	Word Search	42.7%	Medium
	71	Simplify Path	42.2%	Medium
	136	Single Number	72.8%	Easy
	543	Diameter of Binary Tree	60.2%	Easy
	105	Construct Binary Tree from Preorder and Inorder Traversal	63.8%	Medium
	199	Binary Tree Right Side View	63.0%	Medium
	633	Sum of Square Numbers	34.0%	Medium
	661	Image Smoother	67.2%	Easy
	1903	Largest Odd Number in String	63.2%	Easy
	645	Set Mismatch	44.5%	Easy
	540	Single Element in a Sorted Array	59.0%	Medium
	934	Shortest Bridge	57.7%	Medium
	1944	Number of Visible People in a Queue	69.3%	Hard
	547	Number of Provinces	66.1%	Medium
	3005	Count Elements With Maximum Frequency	79.3%	Easy
	9	Palindrome Number	56.2%	Easy
	322	Coin Change	43.8%	Medium
	34	Find First and Last Position of Element in Sorted Array	44.2%	Medium
	480	Sliding Window Median	39.2%	Hard
	976	Largest Perimeter Triangle	55.9%	Easy
	1352	Product of the Last K Numbers	51.1%	Medium
	658	Find K Closest Elements	47.3%	Medium
	299	Bulls and Cows	50.2%	Medium
	386	Lexicographical Numbers	63.8%	Medium
	39	Combination Sum	71.3%	Medium
	217	Contains Duplicate	61.6%	Easy
	1171	Remove Zero Sum Consecutive Nodes from Linked List	52.8%	Medium
	1218	Longest Arithmetic Subsequence of Given Difference	54.8%	Medium
	498	Diagonal Traverse	60.1%	Medium
	206	Reverse Linked List	76.4%	Easy
	51	N-Queens	68.0%	Hard
	1492	The kth Factor of n	67.1%	Medium
	1757	Recyclable and Low Fat Products	89.2%	Easy
	120	Triangle	56.5%	Medium
	863	All Nodes Distance K in Binary Tree	64.4%	Medium
	50	Pow(x, n)	34.7%	Medium
	1790	Check if One String Swap Can Make Strings Equal	45.7%	Easy
	1716	Calculate Money in Leetcode Bank	78.3%	Easy
	2433	Find The Original Array of Prefix Xor	88.1%	Medium
	2013	Detect Squares	50.8%	Medium
	37	Sudoku Solver	60.9%	Hard
	993	Cousins in Binary Tree	55.9%	Easy
	303	Range Sum Query - Immutable	63.2%	Easy
	368	Largest Divisible Subset	45.2%	Medium
	73	Set Matrix Zeroes	55.4%	Medium
	912	Sort an Array	56.7%	Medium
	2116	Check if a Parentheses String Can Be Valid	31.6%	Medium
	1268	Search Suggestions System	65.2%	Medium
	413	Arithmetic Slices	65.0%	Medium
	2444	Count Subarrays With Fixed Bounds	68.1%	Hard
	433	Minimum Genetic Mutation	53.6%	Medium
	76	Minimum Window Substring	42.9%	Hard
	1071	Greatest Common Divisor of Strings	51.4%	Easy
	412	Fizz Buzz	72.0%	Easy
	973	K Closest Points to Origin	66.3%	Medium
	876	Middle of the Linked List	78.3%	Easy
	28	Find the Index of the First Occurrence in a String	42.2%	Easy
	1372	Longest ZigZag Path in a Binary Tree	65.8%	Medium
	570	Managers with at Least 5 Direct Reports	50.7%	Medium
	1091	Shortest Path in Binary Matrix	47.2%	Medium
	713	Subarray Product Less Than K	51.3%	Medium
	26	Remove Duplicates from Sorted Array	55.4%	Easy
	1913	Maximum Product Difference Between Two Pairs	82.8%	Easy
	2706	Buy Two Chocolates	69.6%	Easy
	85	Maximal Rectangle	49.4%	Hard
	2115	Find All Possible Recipes from Given Supplies	49.5%	Medium
	724	Find Pivot Index	57.4%	Easy
	410	Split Array Largest Sum	55.2%	Hard
	152	Maximum Product Subarray	35.0%	Medium
	62	Unique Paths	64.2%	Medium
	44	Wildcard Matching	27.9%	Hard
	392	Is Subsequence	47.9%	Easy
	239	Sliding Window Maximum	46.5%	Hard
	1695	Maximum Erasure Value	58.1%	Medium
	556	Next Greater Element III	34.0%	Medium
	179	Largest Number	36.1%	Medium
	435	Non-overlapping Intervals	53.1%	Medium
	680	Valid Palindrome II	40.6%	Easy
	235	Lowest Common Ancestor of a Binary Search Tree	64.6%	Medium
	348	Design Tic-Tac-Toe	57.9%	Medium
	1464	Maximum Product of Two Elements in an Array	82.5%	Easy
	1382	Balance a Binary Search Tree	81.4%	Medium
	743	Network Delay Time	53.6%	Medium
	283	Move Zeroes	61.7%	Easy
	626	Exchange Seats	69.4%	Medium
	286	Walls and Gates	61.3%	Medium
	2225	Find Players With Zero or One Losses	73.6%	Medium
	1334	Find the City With the Smallest Number of Neighbors at a Threshold Distance	59.8%	Medium
	332	Reconstruct Itinerary	43.2%	Hard
	43	Multiply Strings	40.3%	Medium
	1512	Number of Good Pairs	89.0%	Easy
	68	Text Justification	43.2%	Hard
	2035	Partition Array Into Two Arrays to Minimize Sum Difference	20.1%	Hard
	78	Subsets	77.4%	Medium
	1657	Determine if Two Strings Are Close	55.1%	Medium
	1155	Number of Dice Rolls With Target Sum	60.8%	Medium
	339	Nested List Weight Sum	83.5%	Medium
	2235	Add Two Integers	87.6%	Easy
	6	Zigzag Conversion	47.8%	Medium
	341	Flatten Nested List Iterator	64.4%	Medium
	485	Max Consecutive Ones	58.9%	Easy
	219	Contains Duplicate II	45.0%	Easy
	1482	Minimum Number of Days to Make m Bouquets	51.3%	Medium
	1002	Find Common Characters	68.9%	Easy
	289	Game of Life	69.0%	Medium
	328	Odd Even Linked List	61.4%	Medium
	116	Populating Next Right Pointers in Each Node	62.6%	Medium
	1438	Longest Continuous Subarray With Absolute Diff Less Than or Equal to Limit	49.2%	Medium
	790	Domino and Tromino Tiling	50.7%	Medium
	115	Distinct Subsequences	46.8%	Hard
	1910	Remove All Occurrences of a Substring	77.0%	Medium
	1092	Shortest Common Supersequence	59.0%	Hard
	234	Palindrome Linked List	53.1%	Easy
	96	Unique Binary Search Trees	61.0%	Medium
	224	Basic Calculator	43.4%	Hard
	1431	Kids With the Greatest Number of Candies	87.4%	Easy
	65	Valid Number	19.7%	Hard
	104	Maximum Depth of Binary Tree	75.3%	Easy
	445	Add Two Numbers II	61.1%	Medium
	290	Word Pattern	42.0%	Easy
	852	Peak Index in a Mountain Array	68.5%	Medium
	21	Merge Two Sorted Lists	64.2%	Easy
	797	All Paths From Source to Target	82.4%	Medium
	323	Number of Connected Components in an Undirected Graph	62.8%	Medium
	90	Subsets II	57.2%	Medium
	974	Subarray Sums Divisible by K	54.0%	Medium
	1302	Deepest Leaves Sum	86.3%	Medium
	2402	Meeting Rooms III	44.9%	Hard
	101	Symmetric Tree	56.4%	Easy
	509	Fibonacci Number	70.9%	Easy
	437	Path Sum III	46.4%	Medium
	867	Transpose Matrix	71.3%	Easy
	450	Delete Node in a BST	51.2%	Medium
	274	H-Index	38.9%	Medium
	174	Dungeon Game	38.1%	Hard
	240	Search a 2D Matrix II	52.6%	Medium
	1423	Maximum Points You Can Obtain from Cards	52.5%	Medium
	532	K-diff Pairs in an Array	42.7%	Medium
	1700	Number of Students Unable to Eat Lunch	78.2%	Easy
	182	Duplicate Emails	71.0%	Easy
	1661	Average Time of Process per Machine	66.8%	Easy
	455	Assign Cookies	52.7%	Easy
	204	Count Primes	33.6%	Medium
	930	Binary Subarrays With Sum	62.1%	Medium
	1021	Remove Outermost Parentheses	82.4%	Easy
	46	Permutations	78.2%	Medium
	359	Logger Rate Limiter	75.8%	Easy
	1752	Check if Array Is Sorted and Rotated	51.0%	Easy
	1008	Construct Binary Search Tree from Preorder Traversal	81.9%	Medium
	881	Boats to Save People	56.6%	Medium
	1926	Nearest Exit from Entrance in Maze	46.6%	Medium
	94	Binary Tree Inorder Traversal	76.0%	Easy
	132	Palindrome Partitioning II	33.9%	Hard
	452	Minimum Number of Arrows to Burst Balloons	58.9%	Medium
	1877	Minimize Maximum Pair Sum in Array	81.5%	Medium
	60	Permutation Sequence	46.8%	Hard
	312	Burst Balloons	58.7%	Hard
	2011	Final Value of Variable After Performing Operations	88.9%	Easy
	12	Integer to Roman	64.6%	Medium
	268	Missing Number	66.7%	Easy
	2469	Convert the Temperature	89.1%	Easy
	2666	Allow One Function Call	85.8%	Easy
	1650	Lowest Common Ancestor of a Binary Tree III	79.4%	Medium
	1493	Longest Subarray of 1's After Deleting One Element	67.1%	Medium
	100	Same Tree	62.0%	Easy
	67	Add Binary	53.5%	Easy
	72	Edit Distance	56.3%	Medium
	92	Reverse Linked List II	47.6%	Medium
	213	House Robber II	41.9%	Medium
	1351	Count Negative Numbers in a Sorted Matrix	77.3%	Easy
	408	Valid Word Abbreviation	35.7%	Easy
	1934	Confirmation Rate	57.2%	Medium
	1581	Customer Who Visited but Did Not Make Any Transactions	68.9%	Easy
	443	String Compression	54.3%	Medium
	451	Sort Characters By Frequency	72.5%	Medium
	45	Jump Game II	40.4%	Medium
	2620	Counter	80.4%	Easy
	144	Binary Tree Preorder Traversal	69.4%	Easy
	528	Random Pick with Weight	46.7%	Medium
	8	String to Integer (atoi)	17.2%	Medium
	1249	Minimum Remove to Make Valid Parentheses	68.8%	Medium
	918	Maximum Sum Circular Subarray	44.7%	Medium
	180	Consecutive Numbers	47.3%	Medium
	82	Remove Duplicates from Sorted List II	47.4%	Medium
	1011	Capacity To Ship Packages Within D Days	69.3%	Medium
	35	Search Insert Position	45.8%	Easy
	191	Number of 1 Bits	70.8%	Easy
	80	Remove Duplicates from Sorted Array II	58.0%	Medium
	785	Is Graph Bipartite?	55.6%	Medium
	133	Clone Graph	57.1%	Medium
	102	Binary Tree Level Order Traversal	67.1%	Medium
	832	Flipping an Image	81.8%	Easy
	226	Invert Binary Tree	76.9%	Easy
	1047	Remove All Adjacent Duplicates In String	69.4%	Easy
	171	Excel Sheet Column Number	63.7%	Easy
	61	Rotate List	37.6%	Medium
	69	Sqrt(x)	38.7%	Easy
	542	01 Matrix	48.3%	Medium
	438	Find All Anagrams in a String	50.9%	Medium
	148	Sort List	57.8%	Medium
	279	Perfect Squares	54.8%	Medium
	167	Two Sum II - Input Array Is Sorted	61.2%	Medium
	2703	Return Length of Arguments Passed	93.9%	Easy
	901	Online Stock Span	65.8%	Medium
	151	Reverse Words in a String	41.9%	Medium
	771	Jewels and Stones	88.5%	Easy
	216	Combination Sum III	69.6%	Medium
	1662	Check If Two String Arrays are Equivalent	85.3%	Easy
	110	Balanced Binary Tree	51.9%	Easy
	175	Combine Two Tables	75.8%	Easy
	703	Kth Largest Element in a Stream	56.7%	Easy
	796	Rotate String	58.0%	Easy
	237	Delete Node in a Linked List	78.4%	Medium
	2824	Count Pairs Whose Sum is Less than Target	87.0%	Easy
	131	Palindrome Partitioning	67.4%	Medium
	141	Linked List Cycle	50.3%	Easy
	2665	Counter II	79.6%	Easy
	66	Plus One	45.2%	Easy
	196	Delete Duplicate Emails	61.8%	Easy
	872	Leaf-Similar Trees	70.2%	Easy
	350	Intersection of Two Arrays II	56.5%	Easy
	106	Construct Binary Tree from Inorder and Postorder Traversal	62.7%	Medium
	137	Single Number II	62.5%	Medium
	27	Remove Element	56.6%	Easy
	229	Majority Element II	51.4%	Medium
	160	Intersection of Two Linked Lists	57.3%	Easy
	841	Keys and Rooms	72.9%	Medium
	119	Pascal's Triangle II	63.9%	Easy
	197	Rising Temperature	47.2%	Easy
	572	Subtree of Another Tree	47.8%	Easy
	2942	Find Words Containing Character	88.0%	Easy
	189	Rotate Array	40.5%	Medium
	38	Count and Say	54.9%	Medium
	58	Length of Last Word	51.3%	Easy
	567	Permutation in String	44.3%	Medium
	1614	Maximum Nesting Depth of the Parentheses	83.7%	Easy
	345	Reverse Vowels of a String	52.9%	Easy
	75	Sort Colors	62.1%	Medium
	374	Guess Number Higher or Lower	53.4%	Easy
	584	Find Customer Referee	69.7%	Easy
	344	Reverse String	77.8%	Easy
	334	Increasing Triplet Subsequence	40.0%	Medium
	1251	Average Selling Price	41.6%	Easy
	125	Valid Palindrome	47.3%	Easy
	242	Valid Anagram	64.4%	Easy
	643	Maximum Average Subarray I	43.3%	Easy
	278	First Bad Version	44.3%	Easy
	81	Search in Rotated Sorted Array II	37.6%	Medium
	1211	Queries Quality and Percentage	49.8%	Easy
	40	Combination Sum II	54.4%	Medium
	230	Kth Smallest Element in a BST	72.4%	Medium
	1004	Max Consecutive Ones III	62.9%	Medium
	64	Minimum Path Sum	63.8%	Medium
	142	Linked List Cycle II	51.2%	Medium
	746	Min Cost Climbing Stairs	65.6%	Easy
	678	Valid Parenthesis String	37.9%	Medium
	605	Can Place Flowers	29.2%	Easy
	595	Big Countries	68.2%	Easy
	122	Best Time to Buy and Sell Stock II	66.3%	Medium
	83	Remove Duplicates from Sorted List	52.4%	Easy
	383	Ransom Note	61.2%	Easy
	1148	Article Views I	75.0%	Easy
	950	Reveal Cards In Increasing Order	82.9%	Medium
	402	Remove K Digits	33.5%	Medium

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	#	Title	Acceptance	Difficulty	Frequency
	314	Binary Tree Vertical Order Traversal	54.2%	Medium
	408	Valid Word Abbreviation	35.7%	Easy
	1650	Lowest Common Ancestor of a Binary Tree III	79.4%	Medium
	680	Valid Palindrome II	40.6%	Easy
	339	Nested List Weight Sum	83.5%	Medium
	1249	Minimum Remove to Make Valid Parentheses	68.8%	Medium
	1570	Dot Product of Two Sparse Vectors	89.9%	Medium
	227	Basic Calculator II	43.5%	Medium
	528	Random Pick with Weight	46.7%	Medium
	1762	Buildings With an Ocean View	79.6%	Medium
	215	Kth Largest Element in an Array	66.8%	Medium
	426	Convert Binary Search Tree to Sorted Doubly Linked List	64.8%	Medium
	346	Moving Average from Data Stream	78.2%	Easy
	71	Simplify Path	42.2%	Medium
	236	Lowest Common Ancestor of a Binary Tree	62.0%	Medium
	938	Range Sum of BST	86.8%	Easy
	921	Minimum Add to Make Parentheses Valid	75.1%	Medium
	50	Pow(x, n)	34.7%	Medium
	791	Custom Sort String	70.6%	Medium
	560	Subarray Sum Equals K	43.5%	Medium
	162	Find Peak Element	45.9%	Medium
	986	Interval List Intersections	71.6%	Medium
	973	K Closest Points to Origin	66.3%	Medium
	199	Binary Tree Right Side View	63.0%	Medium
	827	Making A Large Island	47.0%	Hard
	1091	Shortest Path in Binary Matrix	47.2%	Medium
	129	Sum Root to Leaf Numbers	63.7%	Medium
	691	Stickers to Spell Word	48.3%	Hard
	249	Group Shifted Strings	65.5%	Medium
	708	Insert into a Sorted Circular Linked List	36.0%	Medium
	56	Merge Intervals	47.2%	Medium
	146	LRU Cache	42.4%	Medium
	543	Diameter of Binary Tree	60.2%	Easy
	270	Closest Binary Search Tree Value	51.8%	Easy
	138	Copy List with Random Pointer	55.9%	Medium
	636	Exclusive Time of Functions	62.4%	Medium
	498	Diagonal Traverse	60.1%	Medium
	1216	Valid Palindrome III	49.7%	Hard
	65	Valid Number	19.7%	Hard
	987	Vertical Order Traversal of a Binary Tree	47.4%	Hard
	23	Merge k Sorted Lists	52.6%	Hard
	31	Next Permutation	39.8%	Medium
	766	Toeplitz Matrix	68.9%	Easy
	398	Random Pick Index	63.2%	Medium
	347	Top K Frequent Elements	62.7%	Medium
	301	Remove Invalid Parentheses	48.2%	Hard
	88	Merge Sorted Array	49.5%	Easy
	415	Add Strings	51.7%	Easy
	670	Maximum Swap	48.6%	Medium
	140	Word Break II	47.9%	Hard
	721	Accounts Merge	57.1%	Medium
	1004	Max Consecutive Ones III	62.9%	Medium
	125	Valid Palindrome	47.3%	Easy
	348	Design Tic-Tac-Toe	57.9%	Medium
	133	Clone Graph	57.1%	Medium
	163	Missing Ranges	33.6%	Easy
	317	Shortest Distance from All Buildings	43.1%	Hard
	15	3Sum	34.4%	Medium
	523	Continuous Subarray Sum	28.9%	Medium
	2060	Check if an Original String Exists Given Two Encoded Strings	42.9%	Hard
	1868	Product of Two Run-Length Encoded Arrays	58.3%	Medium
	1539	Kth Missing Positive Number	59.8%	Easy
	283	Move Zeroes	61.7%	Easy
	200	Number of Islands	58.8%	Medium
	76	Minimum Window Substring	42.9%	Hard
	689	Maximum Sum of 3 Non-Overlapping Subarrays	49.8%	Hard
	863	All Nodes Distance K in Binary Tree	64.4%	Medium
	173	Binary Search Tree Iterator	71.9%	Medium
	253	Meeting Rooms II	51.2%	Medium
	1047	Remove All Adjacent Duplicates In String	69.4%	Easy
	282	Expression Add Operators	39.8%	Hard
	529	Minesweeper	66.6%	Medium
	825	Friends Of Appropriate Ages	47.3%	Medium
	207	Course Schedule	46.7%	Medium
	658	Find K Closest Elements	47.3%	Medium
	38	Count and Say	54.9%	Medium
	378	Kth Smallest Element in a Sorted Matrix	62.4%	Medium
	1443	Minimum Time to Collect All Apples in a Tree	62.3%	Medium
	953	Verifying an Alien Dictionary	54.9%	Easy
	1011	Capacity To Ship Packages Within D Days	69.3%	Medium
	480	Sliding Window Median	39.2%	Hard
	1541	Minimum Insertions to Balance a Parentheses String	52.1%	Medium
	428	Serialize and Deserialize N-ary Tree	66.9%	Hard
	1644	Lowest Common Ancestor of a Binary Tree II	63.7%	Medium
	304	Range Sum Query 2D - Immutable	54.5%	Medium
	1060	Missing Element in Sorted Array	56.6%	Medium
	380	Insert Delete GetRandom O(1)	54.4%	Medium
	647	Palindromic Substrings	70.1%	Medium
	116	Populating Next Right Pointers in Each Node	62.6%	Medium
	139	Word Break	46.7%	Medium
	1209	Remove All Adjacent Duplicates in String II	57.6%	Medium
	1043	Partition Array for Maximum Sum	76.5%	Medium
	78	Subsets	77.4%	Medium
	1206	Design Skiplist	61.0%	Hard
	2365	Task Scheduler II	51.6%	Medium
	515	Find Largest Value in Each Tree Row	65.7%	Medium
	43	Multiply Strings	40.3%	Medium
	1424	Diagonal Traverse II	56.8%	Medium
	468	Validate IP Address	27.0%	Medium
	1331	Rank Transform of an Array	62.0%	Easy
	489	Robot Room Cleaner	76.7%	Hard
	536	Construct Binary Tree from String	56.8%	Medium
	695	Max Area of Island	71.9%	Medium
	17	Letter Combinations of a Phone Number	60.3%	Medium
	266	Palindrome Permutation	67.2%	Easy
	8	String to Integer (atoi)	17.2%	Medium
	267	Palindrome Permutation II	41.3%	Medium
	34	Find First and Last Position of Element in Sorted Array	44.2%	Medium
	727	Minimum Window Subsequence	43.4%	Hard
	958	Check Completeness of a Binary Tree	56.8%	Medium
	490	The Maze	57.8%	Medium
	1439	Find the Kth Smallest Sum of a Matrix With Sorted Rows	61.5%	Hard
	1245	Tree Diameter	61.1%	Medium
	247	Strobogrammatic Number II	52.2%	Medium
	419	Battleships in a Board	75.3%	Medium
	3009	Maximum Number of Intersections on the Chart	46.8%	Hard
	1944	Number of Visible People in a Queue	69.3%	Hard
	269	Alien Dictionary	35.7%	Hard
	341	Flatten Nested List Iterator	64.4%	Medium
	1778	Shortest Path in a Hidden Grid	39.1%	Medium
	545	Boundary of Binary Tree	45.3%	Medium
	1740	Find Distance in a Binary Tree	70.9%	Medium
	1123	Lowest Common Ancestor of Deepest Leaves	72.1%	Medium
	19	Remove Nth Node From End of List	45.2%	Medium
	865	Smallest Subtree with all the Deepest Nodes	70.5%	Medium
	329	Longest Increasing Path in a Matrix	53.5%	Hard
	824	Goat Latin	68.1%	Easy
	124	Binary Tree Maximum Path Sum	40.0%	Hard
	219	Contains Duplicate II	45.0%	Easy
	295	Find Median from Data Stream	51.9%	Hard
	224	Basic Calculator	43.4%	Hard
	556	Next Greater Element III	34.0%	Medium
	212	Word Search II	36.3%	Hard
	381	Insert Delete GetRandom O(1) - Duplicates allowed	35.4%	Hard
	1382	Balance a Binary Search Tree	81.4%	Medium
	2468	Split Message Based on Limit	43.8%	Hard
	2265	Count Nodes Equal to Average of Subtree	86.4%	Medium
	84	Largest Rectangle in Histogram	44.3%	Hard
	934	Shortest Bridge	57.7%	Medium
	2210	Count Hills and Valleys in an Array	60.0%	Easy
	977	Squares of a Sorted Array	72.8%	Easy
	1161	Maximum Level Sum of a Binary Tree	67.1%	Medium
	1352	Product of the Last K Numbers	51.1%	Medium
	1358	Number of Substrings Containing All Three Characters	66.5%	Medium
	393	UTF-8 Validation	45.1%	Medium
	676	Implement Magic Dictionary	57.3%	Medium
	384	Shuffle an Array	58.3%	Medium
	687	Longest Univalue Path	41.4%	Medium
	540	Single Element in a Sorted Array	59.0%	Medium
	1028	Recover a Tree From Preorder Traversal	74.2%	Hard
	1315	Sum of Nodes with Even-Valued Grandparent	85.5%	Medium
	303	Range Sum Query - Immutable	63.2%	Easy
	1522	Diameter of N-Ary Tree	74.3%	Medium
	325	Maximum Size Subarray Sum Equals k	49.5%	Medium
	2597	The Number of Beautiful Subsets	34.0%	Medium
	103	Binary Tree Zigzag Level Order Traversal	58.9%	Medium
	296	Best Meeting Point	60.9%	Hard
	2281	Sum of Total Strength of Wizards	27.7%	Hard
	63	Unique Paths II	41.5%	Medium
	904	Fruit Into Baskets	44.2%	Medium
	73	Set Matrix Zeroes	55.4%	Medium
	919	Complete Binary Tree Inserter	65.4%	Medium
	114	Flatten Binary Tree to Linked List	64.8%	Medium
	1963	Minimum Number of Swaps to Make the String Balanced	71.4%	Medium
	905	Sort Array By Parity	76.2%	Easy
	435	Non-overlapping Intervals	53.1%	Medium
	772	Basic Calculator III	50.5%	Hard
	1373	Maximum Sum BST in Binary Tree	40.8%	Hard
	424	Longest Repeating Character Replacement	53.7%	Medium
	875	Koko Eating Bananas	48.9%	Medium
	79	Word Search	42.7%	Medium
	2109	Adding Spaces to a String	58.3%	Medium
	127	Word Ladder	39.1%	Hard
	2611	Mice and Cheese	44.8%	Medium
	968	Binary Tree Cameras	46.6%	Hard
	297	Serialize and Deserialize Binary Tree	56.7%	Hard
	273	Integer to English Words	30.6%	Hard
	494	Target Sum	46.7%	Medium
	20	Valid Parentheses	40.5%	Easy
	1287	Element Appearing More Than 25% In Sorted Array	61.1%	Easy
	767	Reorganize String	54.5%	Medium
	333	Largest BST Subtree	43.7%	Medium
	430	Flatten a Multilevel Doubly Linked List	60.0%	Medium
	388	Longest Absolute File Path	47.2%	Medium
	68	Text Justification	43.2%	Hard
	688	Knight Probability in Chessboard	56.2%	Medium
	310	Minimum Height Trees	38.9%	Medium
	113	Path Sum II	58.4%	Medium
	715	Range Module	44.2%	Hard
	2461	Maximum Sum of Distinct Subarrays With Length K	33.8%	Medium
	234	Palindrome Linked List	53.1%	Easy
	10	Regular Expression Matching	28.1%	Hard
	111	Minimum Depth of Binary Tree	47.8%	Easy
	896	Monotonic Array	61.1%	Easy
	14	Longest Common Prefix	42.7%	Easy
	1008	Construct Binary Search Tree from Preorder Traversal	81.9%	Medium
	2667	Create Hello World Function	81.2%	Easy
	2956	Find Common Elements Between Two Arrays	82.5%	Easy
	735	Asteroid Collision	44.5%	Medium
	1197	Minimum Knight Moves	40.4%	Medium
	698	Partition to K Equal Sum Subsets	38.4%	Medium
	21	Merge Two Sorted Lists	64.2%	Easy
	39	Combination Sum	71.3%	Medium
	525	Contiguous Array	48.9%	Medium
	713	Subarray Product Less Than K	51.3%	Medium
	1481	Least Number of Unique Integers after K Removals	62.8%	Medium
	74	Search a 2D Matrix	50.0%	Medium
	287	Find the Duplicate Number	60.7%	Medium
	1669	Merge In Between Linked Lists	81.4%	Medium
	1980	Find Unique Binary String	74.6%	Medium
	239	Sliding Window Maximum	46.5%	Hard
	29	Divide Two Integers	17.4%	Medium
	286	Walls and Gates	61.3%	Medium
	33	Search in Rotated Sorted Array	40.7%	Medium
	332	Reconstruct Itinerary	43.2%	Hard
	49	Group Anagrams	68.4%	Medium
	3	Longest Substring Without Repeating Characters	34.7%	Medium
	983	Minimum Cost For Tickets	65.3%	Medium
	1901	Find a Peak Element II	51.0%	Medium
	739	Daily Temperatures	66.0%	Medium
	367	Valid Perfect Square	43.6%	Easy
	1438	Longest Continuous Subarray With Absolute Diff Less Than or Equal to Limit	49.2%	Medium
	674	Longest Continuous Increasing Subsequence	50.2%	Easy
	16	3Sum Closest	45.8%	Medium
	271	Encode and Decode Strings	46.3%	Medium
	261	Graph Valid Tree	48.0%	Medium
	1094	Car Pooling	56.1%	Medium
	443	String Compression	54.3%	Medium
	62	Unique Paths	64.2%	Medium
	54	Spiral Matrix	49.3%	Medium
	41	First Missing Positive	39.4%	Hard
	210	Course Schedule II	50.3%	Medium
	622	Design Circular Queue	51.4%	Medium
	126	Word Ladder II	27.3%	Hard
	605	Can Place Flowers	29.2%	Easy
	57	Insert Interval	41.4%	Medium
	1	Two Sum	52.3%	Easy
	1926	Nearest Exit from Entrance in Maze	46.6%	Medium
	763	Partition Labels	79.8%	Medium
	1268	Search Suggestions System	65.2%	Medium
	260	Single Number III	68.4%	Medium
	209	Minimum Size Subarray Sum	47.0%	Medium
	32	Longest Valid Parentheses	34.1%	Hard
	121	Best Time to Buy and Sell Stock	53.6%	Easy
	662	Maximum Width of Binary Tree	42.9%	Medium
	72	Edit Distance	56.3%	Medium
	637	Average of Levels in Binary Tree	72.4%	Easy
	238	Product of Array Except Self	66.1%	Medium
	451	Sort Characters By Frequency	72.5%	Medium
	918	Maximum Sum Circular Subarray	44.7%	Medium
	617	Merge Two Binary Trees	78.9%	Easy
	80	Remove Duplicates from Sorted Array II	58.0%	Medium
	289	Game of Life	69.0%	Medium
	18	4Sum	36.2%	Medium
	643	Maximum Average Subarray I	43.3%	Easy
	235	Lowest Common Ancestor of a Binary Search Tree	64.6%	Medium
	40	Combination Sum II	54.4%	Medium
	438	Find All Anagrams in a String	50.9%	Medium
	167	Two Sum II - Input Array Is Sorted	61.2%	Medium
	437	Path Sum III	46.4%	Medium
	1662	Check If Two String Arrays are Equivalent	85.3%	Easy
	118	Pascal's Triangle	74.1%	Easy
	47	Permutations II	59.1%	Medium
	66	Plus One	45.2%	Easy
	394	Decode String	59.1%	Medium
	42	Trapping Rain Water	61.8%	Hard
	229	Majority Element II	51.4%	Medium
	51	N-Queens	68.0%	Hard
	48	Rotate Image	74.2%	Medium
	2235	Add Two Integers	87.6%	Easy
	572	Subtree of Another Tree	47.8%	Easy
	416	Partition Equal Subset Sum	46.2%	Medium
	102	Binary Tree Level Order Traversal	67.1%	Medium
	92	Reverse Linked List II	47.6%	Medium
	25	Reverse Nodes in k-Group	58.5%	Hard
	26	Remove Duplicates from Sorted Array	55.4%	Easy
	383	Ransom Note	61.2%	Easy
	98	Validate Binary Search Tree	32.9%	Medium
	724	Find Pivot Index	57.4%	Easy
	110	Balanced Binary Tree	51.9%	Easy
	190	Reverse Bits	58.3%	Easy
	2	Add Two Numbers	42.7%	Medium
	128	Longest Consecutive Sequence	47.3%	Medium
	278	First Bad Version	44.3%	Easy
	203	Remove Linked List Elements	48.6%	Easy
	112	Path Sum	50.3%	Easy
	4	Median of Two Sorted Arrays	39.8%	Hard
	6	Zigzag Conversion	47.8%	Medium
	64	Minimum Path Sum	63.8%	Medium
	5	Longest Palindromic Substring	33.8%	Medium
	1071	Greatest Common Divisor of Strings	51.4%	Easy
	70	Climbing Stairs	52.9%	Easy
	300	Longest Increasing Subsequence	55.2%	Medium
	101	Symmetric Tree	56.4%	Easy
	678	Valid Parenthesis String	37.9%	Medium
	22	Generate Parentheses	74.4%	Medium
	1143	Longest Common Subsequence	57.8%	Medium
	160	Intersection of Two Linked Lists	57.3%	Easy
	155	Min Stack	54.1%	Medium
	36	Valid Sudoku	59.6%	Medium
	169	Majority Element	64.8%	Easy
	94	Binary Tree Inorder Traversal	76.0%	Easy
	1757	Recyclable and Low Fat Products	89.2%	Easy
	153	Find Minimum in Rotated Sorted Array	50.3%	Medium
	151	Reverse Words in a String	41.9%	Medium
	136	Single Number	72.8%	Easy
	55	Jump Game	38.5%	Medium
	7	Reverse Integer	28.5%	Medium
	53	Maximum Subarray	50.7%	Medium
	584	Find Customer Referee	69.7%	Easy
	27	Remove Element	56.6%	Easy
	58	Length of Last Word	51.3%	Easy
	9	Palindrome Number	56.2%	Easy

LinkedIn

#	Title	Acceptance	Difficulty
53	Maximum Subarray	46.40%	Easy
297	Serialize and Deserialize Binary Tree	47.10%	Hard
380	Insert Delete GetRandom O(1)	47.40%	Medium
127	Word Ladder	29.20%	Medium
364	Nested List Weight Sum II	62.60%	Medium
150	Evaluate Reverse Polish Notation	36.10%	Medium
102	Binary Tree Level Order Traversal	54.20%	Medium
698	Partition to K Equal Sum Subsets	45.00%	Medium
101	Symmetric Tree	46.60%	Easy
339	Nested List Weight Sum	73.60%	Easy
716	Max Stack	42.50%	Easy
149	Max Points on a Line	16.90%	Hard
244	Shortest Word Distance II	52.20%	Medium
605	Can Place Flowers	31.60%	Easy
272	Closest Binary Search Tree Value II	50.30%	Hard
254	Factor Combinations	46.60%	Medium
244	Shortest Word Distance II	48.20%	Medium
364	Nested List Weight Sum II	58.40%	Medium
170	Two Sum III - Data structure design	31.00%	Easy
339	Nested List Weight Sum	69.00%	Easy
272	Closest Binary Search Tree Value II	45.80%	Hard
156	Binary Tree Upside Down	51.60%	Medium
256	Paint House	49.40%	Easy
243	Shortest Word Distance	57.90%	Easy
149	Max Points on a Line	16.00%	Hard
265	Paint House II	42.00%	Hard
65	Valid Number	14.20%	Hard
716	Max Stack	40.40%	Easy
254	Factor Combinations	44.70%	Medium
380	Insert Delete GetRandom O(1)	43.30%	Medium
68	Text Justification	23.90%	Hard
366	Find Leaves of Binary Tree	66.50%	Medium
605	Can Place Flowers	31.10%	Easy

Microsoft

	#	Title	Acceptance	Difficulty	Frequency
	402	Remove K Digits	33.5%	Medium
	27	Remove Element	56.6%	Easy
	169	Majority Element	64.8%	Easy
	141	Linked List Cycle	50.3%	Easy
	205	Isomorphic Strings	45.1%	Easy
	8	String to Integer (atoi)	17.2%	Medium
	26	Remove Duplicates from Sorted Array	55.4%	Easy
	151	Reverse Words in a String	41.9%	Medium
	98	Validate Binary Search Tree	32.9%	Medium
	268	Missing Number	66.7%	Easy
	153	Find Minimum in Rotated Sorted Array	50.3%	Medium
	1757	Recyclable and Low Fat Products	89.2%	Easy
	74	Search a 2D Matrix	50.0%	Medium
	102	Binary Tree Level Order Traversal	67.1%	Medium
	242	Valid Anagram	64.4%	Easy
	11	Container With Most Water	55.1%	Medium
	78	Subsets	77.4%	Medium
	199	Binary Tree Right Side View	63.0%	Medium
	160	Intersection of Two Linked Lists	57.3%	Easy
	1929	Concatenation of Array	89.8%	Easy
	73	Set Matrix Zeroes	55.4%	Medium
	17	Letter Combinations of a Phone Number	60.3%	Medium
	605	Can Place Flowers	29.2%	Easy
	162	Find Peak Element	45.9%	Medium
	746	Min Cost Climbing Stairs	65.6%	Easy
	20	Valid Parentheses	40.5%	Easy
	570	Managers with at Least 5 Direct Reports	50.7%	Medium
	209	Minimum Size Subarray Sum	47.0%	Medium
	108	Convert Sorted Array to Binary Search Tree	71.6%	Easy
	1071	Greatest Common Divisor of Strings	51.4%	Easy
	739	Daily Temperatures	66.0%	Medium
	875	Koko Eating Bananas	48.9%	Medium
	66	Plus One	45.2%	Easy
	55	Jump Game	38.5%	Medium
	128	Longest Consecutive Sequence	47.3%	Medium
	217	Contains Duplicate	61.6%	Easy
	103	Binary Tree Zigzag Level Order Traversal	58.9%	Medium
	450	Delete Node in a BST	51.2%	Medium
	13	Roman to Integer	61.1%	Easy
	412	Fizz Buzz	72.0%	Easy
	71	Simplify Path	42.2%	Medium
	143	Reorder List	58.5%	Medium
	9	Palindrome Number	56.2%	Easy
	213	House Robber II	41.9%	Medium
	380	Insert Delete GetRandom O(1)	54.4%	Medium
	367	Valid Perfect Square	43.6%	Easy
	135	Candy	43.3%	Hard
	1768	Merge Strings Alternately	79.7%	Easy
	48	Rotate Image	74.2%	Medium
	91	Decode Ways	34.8%	Medium
	28	Find the Index of the First Occurrence in a String	42.2%	Easy
	994	Rotting Oranges	54.0%	Medium
	1143	Longest Common Subsequence	57.8%	Medium
	33	Search in Rotated Sorted Array	40.7%	Medium
	701	Insert into a Binary Search Tree	73.8%	Medium
	127	Word Ladder	39.1%	Hard
	22	Generate Parentheses	74.4%	Medium
	678	Valid Parenthesis String	37.9%	Medium
	42	Trapping Rain Water	61.8%	Hard
	300	Longest Increasing Subsequence	55.2%	Medium
	152	Maximum Product Subarray	35.0%	Medium
	47	Permutations II	59.1%	Medium
	236	Lowest Common Ancestor of a Binary Tree	62.0%	Medium
	118	Pascal's Triangle	74.1%	Easy
	240	Search a 2D Matrix II	52.6%	Medium
	328	Odd Even Linked List	61.4%	Medium
	64	Minimum Path Sum	63.8%	Medium
	12	Integer to Roman	64.6%	Medium
	704	Binary Search	57.4%	Easy
	2877	Create a DataFrame from List	81.0%	Easy
	124	Binary Tree Maximum Path Sum	40.0%	Hard
	438	Find All Anagrams in a String	50.9%	Medium
	112	Path Sum	50.3%	Easy
	232	Implement Queue using Stacks	66.2%	Easy
	227	Basic Calculator II	43.5%	Medium
	215	Kth Largest Element in an Array	66.8%	Medium
	96	Unique Binary Search Trees	61.0%	Medium
	115	Distinct Subsequences	46.8%	Hard
	987	Vertical Order Traversal of a Binary Tree	47.4%	Hard
	211	Design Add and Search Words Data Structure	45.1%	Medium
	1492	The kth Factor of n	67.1%	Medium
	15	3Sum	34.4%	Medium
	204	Count Primes	33.6%	Medium
	785	Is Graph Bipartite?	55.6%	Medium
	316	Remove Duplicate Letters	49.6%	Medium
	86	Partition List	56.2%	Medium
	84	Largest Rectangle in Histogram	44.3%	Hard
	90	Subsets II	57.2%	Medium
	21	Merge Two Sorted Lists	64.2%	Easy
	628	Maximum Product of Three Numbers	45.3%	Easy
	347	Top K Frequent Elements	62.7%	Medium
	208	Implement Trie (Prefix Tree)	65.0%	Medium
	907	Sum of Subarray Minimums	37.4%	Medium
	767	Reorganize String	54.5%	Medium
	25	Reverse Nodes in k-Group	58.5%	Hard
	62	Unique Paths	64.2%	Medium
	24	Swap Nodes in Pairs	64.3%	Medium
	509	Fibonacci Number	70.9%	Easy
	1650	Lowest Common Ancestor of a Binary Tree III	79.4%	Medium
	75	Sort Colors	62.1%	Medium
	43	Multiply Strings	40.3%	Medium
	1762	Buildings With an Ocean View	79.6%	Medium
	435	Non-overlapping Intervals	53.1%	Medium
	368	Largest Divisible Subset	45.2%	Medium
	206	Reverse Linked List	76.4%	Easy
	1472	Design Browser History	77.5%	Medium
	322	Coin Change	43.8%	Medium
	1838	Frequency of the Most Frequent Element	45.1%	Medium
	122	Best Time to Buy and Sell Stock II	66.3%	Medium
	97	Interleaving String	39.9%	Medium
	36	Valid Sudoku	59.6%	Medium
	155	Min Stack	54.1%	Medium
	207	Course Schedule	46.7%	Medium
	79	Word Search	42.7%	Medium
	126	Word Ladder II	27.3%	Hard
	210	Course Schedule II	50.3%	Medium
	2667	Create Hello World Function	81.2%	Easy
	621	Task Scheduler	59.9%	Medium
	445	Add Two Numbers II	61.1%	Medium
	109	Convert Sorted List to Binary Search Tree	61.8%	Medium
	1438	Longest Continuous Subarray With Absolute Diff Less Than or Equal to Limit	49.2%	Medium
	116	Populating Next Right Pointers in Each Node	62.6%	Medium
	652	Find Duplicate Subtrees	59.4%	Medium
	581	Shortest Unsorted Continuous Subarray	36.8%	Medium
	70	Climbing Stairs	52.9%	Easy
	349	Intersection of Two Arrays	74.4%	Easy
	1209	Remove All Adjacent Duplicates in String II	57.6%	Medium
	1642	Furthest Building You Can Reach	49.7%	Medium
	19	Remove Nth Node From End of List	45.2%	Medium
	121	Best Time to Buy and Sell Stock	53.6%	Easy
	314	Binary Tree Vertical Order Traversal	54.2%	Medium
	5	Longest Palindromic Substring	33.8%	Medium
	134	Gas Station	45.5%	Medium
	57	Insert Interval	41.4%	Medium
	269	Alien Dictionary	35.7%	Hard
	147	Insertion Sort List	53.4%	Medium
	198	House Robber	51.0%	Medium
	2	Add Two Numbers	42.7%	Medium
	2706	Buy Two Chocolates	69.6%	Easy
	23	Merge k Sorted Lists	52.6%	Hard
	695	Max Area of Island	71.9%	Medium
	443	String Compression	54.3%	Medium
	340	Longest Substring with At Most K Distinct Characters	48.8%	Medium
	49	Group Anagrams	68.4%	Medium
	168	Excel Sheet Column Title	40.6%	Easy
	4	Median of Two Sorted Arrays	39.8%	Hard
	836	Rectangle Overlap	44.7%	Easy
	1197	Minimum Knight Moves	40.4%	Medium
	442	Find All Duplicates in an Array	75.7%	Medium
	859	Buddy Strings	33.1%	Easy
	212	Word Search II	36.3%	Hard
	378	Kth Smallest Element in a Sorted Matrix	62.4%	Medium
	990	Satisfiability of Equality Equations	50.4%	Medium
	39	Combination Sum	71.3%	Medium
	53	Maximum Subarray	50.7%	Medium
	460	LFU Cache	44.1%	Hard
	93	Restore IP Addresses	49.7%	Medium
	1	Two Sum	52.3%	Easy
	41	First Missing Positive	39.4%	Hard
	68	Text Justification	43.2%	Hard
	238	Product of Array Except Self	66.1%	Medium
	295	Find Median from Data Stream	51.9%	Hard
	2239	Find Closest Number to Zero	44.8%	Easy
	54	Spiral Matrix	49.3%	Medium
	88	Merge Sorted Array	49.5%	Easy
	31	Next Permutation	39.8%	Medium
	273	Integer to English Words	30.6%	Hard
	2007	Find Original Array From Doubled Array	40.5%	Medium
	138	Copy List with Random Pointer	55.9%	Medium
	348	Design Tic-Tac-Toe	57.9%	Medium
	545	Boundary of Binary Tree	45.3%	Medium
	772	Basic Calculator III	50.5%	Hard
	3040	Maximum Number of Operations With the Same Score II	31.7%	Medium
	426	Convert Binary Search Tree to Sorted Doubly Linked List	64.8%	Medium
	239	Sliding Window Maximum	46.5%	Hard
	2817	Minimum Absolute Difference Between Elements With Constraint	32.9%	Medium
	3	Longest Substring Without Repeating Characters	34.7%	Medium
	2246	Longest Path With Different Adjacent Characters	54.7%	Hard
	828	Count Unique Characters of All Substrings of a Given String	52.3%	Hard
	140	Word Break II	47.9%	Hard
	139	Word Break	46.7%	Medium
	2262	Total Appeal of A String	55.5%	Hard
	525	Contiguous Array	48.9%	Medium
	2477	Minimum Fuel Cost to Report to the Capital	64.8%	Medium
	2028	Find Missing Observations	46.3%	Medium
	2850	Minimum Moves to Spread Stones Over Grid	43.2%	Medium
	297	Serialize and Deserialize Binary Tree	56.7%	Hard
	722	Remove Comments	38.5%	Medium
	253	Meeting Rooms II	51.2%	Medium
	706	Design HashMap	65.7%	Easy
	2998	Minimum Number of Operations to Make X and Y Equal	43.5%	Medium
	200	Number of Islands	58.8%	Medium
	56	Merge Intervals	47.2%	Medium
	3013	Divide an Array Into Subarrays With Minimum Cost II	31.1%	Hard
	277	Find the Celebrity	47.2%	Medium
	179	Largest Number	36.1%	Medium
	1666	Change the Root of a Binary Tree	73.5%	Medium
	465	Optimal Account Balancing	49.6%	Hard
	285	Inorder Successor in BST	49.6%	Medium
	2384	Largest Palindromic Number	33.9%	Medium
	146	LRU Cache	42.4%	Medium

Uber

#	Title	Acceptance	Difficulty
757	Set Intersection Size At Least Two	41.30%	Hard
267	Palindrome Permutation II	36.80%	Medium
529	Minesweeper	60.10%	Medium
773	Sliding Puzzle	60.10%	Hard
936	Stamping The Sequence	46.40%	Hard
427	Construct Quad Tree	61.90%	Medium
655	Print Binary Tree	55.30%	Medium
305	Number of Islands II	39.90%	Hard
1281	Subtract the Product and Sum of Digits of an Integer	85.50%	Easy
1136	Parallel Courses	61.00%	Hard
332	Reconstruct Itinerary	37.20%	Medium
986	Interval List Intersections	67.70%	Medium
465	Optimal Account Balancing	47.50%	Hard
291	Word Pattern II	43.80%	Hard
1368	Minimum Cost to Make at Least One Valid Path in a Grid	55.60%	Hard
741	Cherry Pickup	34.50%	Hard
527	Word Abbreviation	55.40%	Hard
341	Flatten Nested List Iterator	53.60%	Medium
68	Text Justification	28.50%	Hard
34	Find First and Last Position of Element in Sorted Array	36.70%	Medium
772	Basic Calculator III	42.30%	Hard
56	Merge Intervals	39.90%	Medium
1278	Palindrome Partitioning III	60.10%	Hard
126	Word Ladder II	22.90%	Hard
1400	Construct K Palindrome Strings	61.90%	Medium
128	Longest Consecutive Sequence	45.60%	Hard
361	Bomb Enemy	46.30%	Medium
239	Sliding Window Maximum	44.00%	Hard
752	Open the Lock	52.20%	Medium
49	Group Anagrams	58.10%	Medium
642	Design Search Autocomplete System	45.40%	Hard
85	Maximal Rectangle	38.60%	Hard
1227	Airplane Seat Assignment Probability	61.70%	Medium
1135	Connecting Cities With Minimum Cost	58.50%	Medium
130	Surrounded Regions	28.70%	Medium
780	Reaching Points	29.90%	Hard
1188	Design Bounded Blocking Queue	71.70%	Medium
146	LRU Cache	34.40%	Medium
297	Serialize and Deserialize Binary Tree	48.60%	Hard
679	24 Game	46.90%	Hard
716	Max Stack	42.70%	Easy
445	Add Two Numbers II	55.20%	Medium
855	Exam Room	43.40%	Medium
279	Perfect Squares	48.10%	Medium
315	Count of Smaller Numbers After Self	42.20%	Hard
36	Valid Sudoku	49.60%	Medium
353	Design Snake Game	34.80%	Medium
863	All Nodes Distance K in Binary Tree	56.70%	Medium
221	Maximal Square	38.10%	Medium
871	Minimum Number of Refueling Stops	31.80%	Hard
200	Number of Islands	47.70%	Medium
380	Insert Delete GetRandom O(1)	48.10%	Medium
3	Longest Substring Without Repeating Characters	30.80%	Medium
23	Merge k Sorted Lists	41.30%	Hard
53	Maximum Subarray	47.10%	Easy
2	Add Two Numbers	34.50%	Medium
399	Evaluate Division	53.50%	Medium
273	Integer to English Words	27.60%	Hard
969	Pancake Sorting	68.30%	Medium
1229	Meeting Scheduler	53.60%	Medium
992	Subarrays with K Different Integers	49.80%	Hard
238	Product of Array Except Self	60.80%	Medium
359	Logger Rate Limiter	71.40%	Easy
1	Two Sum	46.00%	Easy
628	Maximum Product of Three Numbers	47.00%	Easy
621	Task Scheduler	50.90%	Medium
428	Serialize and Deserialize N-ary Tree	60.40%	Hard
227	Basic Calculator II	37.50%	Medium
149	Max Points on a Line	17.10%	Hard
438	Find All Anagrams in a String	44.10%	Medium
311	Sparse Matrix Multiplication	62.90%	Medium
979	Distribute Coins in Binary Tree	69.20%	Medium
694	Number of Distinct Islands	56.70%	Medium
262	Trips and Users	34.30%	Hard
269	Alien Dictionary	33.40%	Hard
395	Longest Substring with At Least K Repeating Characters	41.80%	Medium
17	Letter Combinations of a Phone Number	47.80%	Medium
729	My Calendar I	52.60%	Medium
1038	Binary Search Tree to Greater Sum Tree	81.40%	Medium
581	Shortest Unsorted Continuous Subarray	31.30%	Medium
72	Edit Distance	45.80%	Hard
977	Squares of a Sorted Array	72.10%	Easy
166	Fraction to Recurring Decimal	22.00%	Medium
282	Expression Add Operators	36.10%	Hard
140	Word Break II	33.60%	Hard
57	Insert Interval	34.50%	Medium
4	Median of Two Sorted Arrays	30.30%	Hard
124	Binary Tree Maximum Path Sum	34.90%	Hard
50	Pow(x, n)	30.60%	Medium
39	Combination Sum	58.00%	Medium
426	Convert Binary Search Tree to Sorted Doubly Linked List	60.00%	Medium
253	Meeting Rooms II	46.20%	Medium
289	Game of Life	55.80%	Medium
981	Time Based Key-Value Store	53.60%	Medium
337	House Robber III	51.00%	Medium
334	Increasing Triplet Subsequence	39.90%	Medium
692	Top K Frequent Words	52.50%	Medium
46	Permutations	65.00%	Medium
42	Trapping Rain Water	50.00%	Hard
210	Course Schedule II	41.60%	Medium
131	Palindrome Partitioning	49.00%	Medium
134	Gas Station	40.40%	Medium
451	Sort Characters By Frequency	63.70%	Medium
528	Random Pick with Weight	44.30%	Medium
20	Valid Parentheses	39.30%	Easy
121	Best Time to Buy and Sell Stock	51.10%	Easy
70	Climbing Stairs	48.20%	Easy
31	Next Permutation	33.00%	Medium
852	Peak Index in a Mountain Array	71.80%	Easy
767	Reorganize String	49.40%	Medium
75	Sort Colors	48.30%	Medium
211	Design Add and Search Words Data Structure	39.00%	Medium
22	Generate Parentheses	64.00%	Medium
208	Implement Trie (Prefix Tree)	50.70%	Medium
173	Binary Search Tree Iterator	58.00%	Medium
32	Longest Valid Parentheses	28.80%	Hard
1143	Longest Common Subsequence	58.50%	Medium
84	Largest Rectangle in Histogram	35.90%	Hard
295	Find Median from Data Stream	45.60%	Hard
16	3Sum Closest	46.10%	Medium
215	Kth Largest Element in an Array	56.70%	Medium
6	ZigZag Conversion	37.10%	Medium
13	Roman to Integer	56.20%	Easy
10	Regular Expression Matching	27.00%	Hard
41	First Missing Positive	33.00%	Hard
118	Pascal's Triangle	53.70%	Easy
76	Minimum Window Substring	35.30%	Hard
152	Maximum Product Subarray	32.40%	Medium
127	Word Ladder	30.50%	Medium
54	Spiral Matrix	34.70%	Medium
74	Search a 2D Matrix	37.10%	Medium
207	Course Schedule	43.70%	Medium
62	Unique Paths	55.00%	Medium
99	Recover Binary Search Tree	41.60%	Hard
48	Rotate Image	58.30%	Medium
15	3Sum	27.40%	Medium
69	Sqrt(x)	34.50%	Easy
5	Longest Palindromic Substring	29.80%	Medium
973	K Closest Points to Origin	64.20%	Medium
300	Longest Increasing Subsequence	42.90%	Medium
21	Merge Two Sorted Lists	54.60%	Easy
139	Word Break	40.90%	Medium
234	Palindrome Linked List	39.80%	Easy
560	Subarray Sum Equals K	43.80%	Medium
242	Valid Anagram	57.60%	Easy
228	Summary Ranges	41.60%	Easy
322	Coin Change	36.40%	Medium
198	House Robber	42.50%	Easy
122	Best Time to Buy and Sell Stock II	57.80%	Easy
1480	Running Sum of 1d Array	89.70%	Easy
133	Clone Graph	37.30%	Medium
104	Maximum Depth of Binary Tree	66.80%	Easy
26	Remove Duplicates from Sorted Array	45.90%	Easy
7	Reverse Integer	25.80%	Easy

Note: Refer individual folder for more details.