Company-Wise Interview Questions


1	Two Sum	Easy	56.6%	100.0%
2	Add Two Numbers	Medium	47.3%	75.0%
3	Longest Substring Without Repeating Characters	Medium	37.9%	75.0%
4	Median of Two Sorted Arrays	Hard	45.2%	75.0%
7	Reverse Integer	Medium	31.1%	75.0%
14	Longest Common Prefix	Easy	46.5%	75.0%
15	3Sum	Medium	38.0%	75.0%
20	Valid Parentheses	Easy	43.2%	75.0%
42	Trapping Rain Water	Hard	66.2%	75.0%
49	Group Anagrams	Medium	71.7%	75.0%
70	Climbing Stairs	Easy	53.8%	75.0%
88	Merge Sorted Array	Easy	53.9%	75.0%
169	Majority Element	Easy	66.0%	75.0%
5	Longest Palindromic Substring	Medium	36.8%	62.5%
9	Palindrome Number	Easy	59.9%	62.5%
11	Container With Most Water	Medium	59.0%	62.5%
12	Integer to Roman	Medium	69.8%	62.5%
13	Roman to Integer	Easy	65.8%	62.5%
27	Remove Element	Easy	60.9%	62.5%
31	Next Permutation	Medium	44.2%	62.5%
41	First Missing Positive	Hard	41.9%	62.5%
48	Rotate Image	Medium	78.9%	62.5%
54	Spiral Matrix	Medium	55.4%	62.5%
55	Jump Game	Medium	40.1%	62.5%
56	Merge Intervals	Medium	50.5%	62.5%
76	Minimum Window Substring	Hard	46.4%	62.5%
121	Best Time to Buy and Sell Stock	Easy	56.0%	62.5%
128	Longest Consecutive Sequence	Medium	47.0%	62.5%
146	LRU Cache	Medium	46.3%	62.5%
195	Tenth Line	Easy	35.5%	62.5%
200	Number of Islands	Medium	63.3%	62.5%
206	Reverse Linked List	Easy	79.9%	62.5%
237	Delete Node in a Linked List	Medium	83.2%	62.5%
238	Product of Array Except Self	Medium	68.3%	62.5%
258	Add Digits	Easy	68.4%	62.5%
283	Move Zeroes	Easy	63.2%	62.5%
292	Nim Game	Easy	58.8%	62.5%
322	Coin Change	Medium	47.5%	62.5%
703	Kth Largest Element in a Stream	Easy	60.4%	62.5%
793	Preimage Size of Factorial Zeroes Function	Hard	46.3%	62.5%
795	Number of Subarrays with Bounded Maximum	Medium	54.4%	62.5%
908	Smallest Range I	Easy	72.9%	62.5%
910	Smallest Range II	Medium	37.6%	62.5%
1190	Reverse Substrings Between Each Pair of Parentheses	Medium	71.9%	62.5%
1916	Count Ways to Build Rooms in an Ant Colony	Hard	49.6%	62.5%
1768	Merge Strings Alternately	Easy	82.1%	62.5%
2055	Plates Between Candles	Medium	47.1%	62.5%
2143	Choose Numbers From Two Arrays in Range	Hard	52.6%	62.5%
2328	Number of Increasing Paths in a Grid	Hard	57.5%	62.5%
2406	Divide Intervals Into Minimum Number of Groups	Medium	63.6%	62.5%
2429	Minimize XOR	Medium	62.4%	62.5%
2422	Merge Operations to Turn Array Into a Palindrome	Medium	68.9%	62.5%
2667	Create Hello World Function	Easy	82.0%	62.5%
2892	Minimizing Array After Replacing Pairs With Their Product	Medium	40.5%	62.5%
2962	Count Subarrays Where Max Element Appears at Least K Times	Medium	62.4%	62.5%
3173	Bitwise OR of Adjacent Elements	Easy	94.7%	62.5%
761	Special Binary String	Hard	65.4%	62.5%
8	String to Integer (atoi)	Medium	20.1%	50.0%
17	Letter Combinations of a Phone Number	Medium	64.9%	50.0%
21	Merge Two Sorted Lists	Easy	67.5%	50.0%
22	Generate Parentheses	Medium	77.9%	50.0%
23	Merge k Sorted Lists	Hard	58.2%	50.0%
25	Reverse Nodes in k-Group	Hard	64.6%	50.0%
26	Remove Duplicates from Sorted Array	Easy	61.6%	50.0%
33	Search in Rotated Sorted Array	Medium	43.7%	50.0%
34	Find First and Last Position of Element in Sorted Array	Medium	47.8%	50.0%
36	Valid Sudoku	Medium	63.7%	50.0%
40	Combination Sum II	Medium	58.5%	50.0%
45	Jump Game II	Medium	42.1%	50.0%
46	Permutations	Medium	81.3%	50.0%
50	Pow(x, n)	Medium	37.9%	50.0%
66	Plus One	Easy	48.3%	50.0%
69	Sqrt(x)	Easy	41.0%	50.0%
73	Set Matrix Zeroes	Medium	61.9%	50.0%
78	Subsets	Medium	81.7%	50.0%
80	Remove Duplicates from Sorted Array II	Medium	63.8%	50.0%
84	Largest Rectangle in Histogram	Hard	48.7%	50.0%
100	Same Tree	Easy	66.1%	50.0%
103	Binary Tree Zigzag Level Order Traversal	Medium	62.7%	50.0%
105	Construct Binary Tree from Preorder and Inorder Traversal	Medium	67.9%	50.0%
125	Valid Palindrome	Easy	52.1%	50.0%
130	Surrounded Regions	Medium	44.2%	50.0%
136	Single Number	Easy	76.9%	50.0%
152	Maximum Product Subarray	Medium	35.6%	50.0%
162	Find Peak Element	Medium	46.7%	50.0%
173	Binary Search Tree Iterator	Medium	75.8%	50.0%
179	Largest Number	Medium	42.1%	50.0%
198	House Robber	Medium	52.7%	50.0%
207	Course Schedule	Medium	50.3%	50.0%
215	Kth Largest Element in an Array	Medium	68.6%	50.0%
217	Contains Duplicate	Easy	63.8%	50.0%
227	Basic Calculator II	Medium	46.4%	50.0%
236	Lowest Common Ancestor of a Binary Tree	Medium	68.1%	50.0%
239	Sliding Window Maximum	Hard	48.1%	50.0%
268	Missing Number	Easy	71.1%	50.0%
279	Perfect Squares	Medium	56.1%	50.0%
347	Top K Frequent Elements	Medium	65.2%	50.0%
349	Intersection of Two Arrays	Easy	77.1%	50.0%
368	Largest Divisible Subset	Medium	49.2%	50.0%
387	First Unique Character in a String	Easy	64.5%	50.0%
417	Pacific Atlantic Water Flow	Medium	60.2%	50.0%
540	Single Element in a Sorted Array	Medium	59.2%	50.0%
560	Subarray Sum Equals K	Medium	46.3%	50.0%
658	Find K Closest Elements	Medium	49.2%	50.0%
713	Subarray Product Less Than K	Medium	53.5%	50.0%
767	Reorganize String	Medium	56.6%	50.0%
704	Binary Search	Easy	60.2%	50.0%
875	Koko Eating Bananas	Medium	49.4%	50.0%
528	Random Pick with Weight	Medium	48.7%	50.0%
904	Fruit Into Baskets	Medium	49.9%	50.0%
994	Rotting Oranges	Medium	57.6%	50.0%
1268	Search Suggestions System	Medium	65.1%	50.0%
1757	Recyclable and Low Fat Products	Easy	88.9%	50.0%
2895	Minimum Processing Time	Medium	69.9%	50.0%
692	Top K Frequent Words	Medium	59.8%	50.0%
3636	Threshold Majority Queries	Hard	20.9%	50.0%
468	Validate IP Address	Medium	28.1%	50.0%
1636	Sort Array by Increasing Frequency	Easy	80.5%	50.0%
3736	Minimum Moves to Equal Array Elements III	Easy	79.7%	50.0%
6	Zigzag Conversion	Medium	52.9%	37.5%
16	3Sum Closest	Medium	47.6%	37.5%
18	4Sum	Medium	39.3%	37.5%
28	Find the Index of the First Occurrence in a String	Easy	45.8%	37.5%
29	Divide Two Integers	Medium	19.0%	37.5%
35	Search Insert Position	Easy	50.1%	37.5%
37	Sudoku Solver	Hard	65.3%	37.5%
44	Wildcard Matching	Hard	30.9%	37.5%
51	N-Queens	Hard	74.3%	37.5%
58	Length of Last Word	Easy	57.6%	37.5%
62	Unique Paths	Medium	66.3%	37.5%
67	Add Binary	Easy	56.4%	37.5%
72	Edit Distance	Medium	59.7%	37.5%
74	Search a 2D Matrix	Medium	53.1%	37.5%
75	Sort Colors	Medium	68.6%	37.5%
79	Word Search	Medium	46.3%	37.5%
83	Remove Duplicates from Sorted List	Easy	55.7%	37.5%
91	Decode Ways	Medium	37.2%	37.5%
92	Reverse Linked List II	Medium	50.5%	37.5%
93	Restore IP Addresses	Medium	54.6%	37.5%
98	Validate Binary Search Tree	Medium	35.0%	37.5%
101	Symmetric Tree	Easy	60.2%	37.5%
102	Binary Tree Level Order Traversal	Medium	71.6%	37.5%
118	Pascal's Triangle	Easy	78.3%	37.5%
122	Best Time to Buy and Sell Stock II	Medium	70.3%	37.5%
127	Word Ladder	Hard	44.2%	37.5%
134	Gas Station	Medium	47.1%	37.5%
135	Candy	Hard	47.5%	37.5%
138	Copy List with Random Pointer	Medium	61.8%	37.5%
141	Linked List Cycle	Easy	53.4%	37.5%
151	Reverse Words in a String	Medium	54.4%	37.5%
155	Min Stack	Medium	57.3%	37.5%
167	Two Sum II - Input Array Is Sorted	Medium	64.1%	37.5%
189	Rotate Array	Medium	44.0%	37.5%
197	Rising Temperature	Easy	50.8%	37.5%
201	Bitwise AND of Numbers Range	Medium	48.4%	37.5%
202	Happy Number	Easy	58.8%	37.5%
225	Implement Stack using Queues	Easy	68.7%	37.5%
229	Majority Element II	Medium	55.4%	37.5%
231	Power of Two	Easy	49.6%	37.5%
234	Palindrome Linked List	Easy	56.9%	37.5%
242	Valid Anagram	Easy	67.4%	37.5%
253	Meeting Rooms II	Medium	52.4%	37.5%
273	Integer to English Words	Hard	34.7%	37.5%
290	Word Pattern	Easy	43.5%	37.5%
297	Serialize and Deserialize Binary Tree	Hard	59.9%	37.5%
300	Longest Increasing Subsequence	Medium	58.7%	37.5%
380	Insert Delete GetRandom O(1)	Medium	55.2%	37.5%
402	Remove K Digits	Medium	35.9%	37.5%
405	Convert a Number to Hexadecimal	Easy	52.4%	37.5%
424	Longest Repeating Character Replacement	Medium	58.4%	37.5%
443	String Compression	Medium	59.1%	37.5%
451	Sort Characters By Frequency	Medium	74.8%	37.5%
455	Assign Cookies	Easy	54.5%	37.5%
547	Number of Provinces	Medium	69.6%	37.5%
556	Next Greater Element III	Medium	35.0%	37.5%
567	Permutation in String	Medium	48.0%	37.5%
584	Find Customer Referee	Easy	72.2%	37.5%
661	Image Smoother	Easy	68.8%	37.5%
680	Valid Palindrome II	Easy	43.7%	37.5%
697	Degree of an Array	Easy	57.9%	37.5%
735	Asteroid Collision	Medium	46.4%	37.5%
739	Daily Temperatures	Medium	67.9%	37.5%
700	Search in a Binary Search Tree	Easy	82.3%	37.5%
864	Shortest Path to Get All Keys	Hard	54.2%	37.5%
872	Leaf-Similar Trees	Easy	70.2%	37.5%
948	Bag of Tokens	Medium	59.4%	37.5%
968	Binary Tree Cameras	Hard	47.5%	37.5%
973	K Closest Points to Origin	Medium	68.5%	37.5%
977	Squares of a Sorted Array	Easy	73.4%	37.5%
1287	Element Appearing More Than 25% In Sorted Array	Easy	61.1%	37.5%
1143	Longest Common Subsequence	Medium	58.6%	37.5%
1148	Article Views I	Easy	76.9%	37.5%
1155	Number of Dice Rolls With Target Sum	Medium	62.0%	37.5%
1207	Unique Number of Occurrences	Easy	78.5%	37.5%
1235	Maximum Profit in Job Scheduling	Hard	54.5%	37.5%
1239	Maximum Length of a Concatenated String with Unique Characters	Medium	54.4%	37.5%
1249	Minimum Remove to Make Valid Parentheses	Medium	71.1%	37.5%
1378	Replace Employee ID With The Unique Identifier	Easy	83.5%	37.5%
1581	Customer Who Visited but Did Not Make Any Transactions	Easy	67.6%	37.5%
1637	Widest Vertical Area Between Two Points Containing No Points	Easy	87.1%	37.5%
1661	Average Time of Process per Machine	Easy	67.3%	37.5%
1683	Invalid Tweets	Easy	85.3%	37.5%
1863	Sum of All Subset XOR Totals	Easy	90.1%	37.5%
2092	Find All People With Secret	Hard	45.3%	37.5%
2125	Number of Laser Beams in a Bank	Medium	87.0%	37.5%
2235	Add Two Integers	Easy	87.7%	37.5%
2385	Amount of Time for Binary Tree to Be Infected	Medium	64.8%	37.5%
2610	Convert an Array Into a 2D Array With Conditions	Medium	86.4%	37.5%
2704	To Be Or Not To Be	Easy	63.1%	37.5%
2877	Create a DataFrame from List	Easy	81.2%	37.5%
2134	Minimum Swaps to Group All 1's Together II	Medium	65.6%	37.5%
2506	Count Pairs Of Similar Strings	Easy	73.1%	37.5%
307	Range Sum Query - Mutable	Medium	42.2%	37.5%
329	Longest Increasing Path in a Matrix	Hard	56.0%	37.5%
1293	Shortest Path in a Grid with Obstacles Elimination	Hard	45.9%	37.5%
3528	Unit Conversion I	Medium	54.9%	37.5%
219	Contains Duplicate II	Easy	50.1%	37.5%
19	Remove Nth Node From End of List	Medium	50.3%	25.0%
24	Swap Nodes in Pairs	Medium	68.3%	25.0%
30	Substring with Concatenation of All Words	Hard	33.6%	25.0%
32	Longest Valid Parentheses	Hard	37.4%	25.0%
38	Count and Say	Medium	61.7%	25.0%
47	Permutations II	Medium	62.5%	25.0%
53	Maximum Subarray	Medium	52.7%	25.0%
57	Insert Interval	Medium	44.3%	25.0%
60	Permutation Sequence	Hard	51.3%	25.0%
85	Maximal Rectangle	Hard	55.3%	25.0%
86	Partition List	Medium	60.0%	25.0%
104	Maximum Depth of Binary Tree	Easy	77.7%	25.0%
110	Balanced Binary Tree	Easy	56.5%	25.0%
112	Path Sum	Easy	53.9%	25.0%
123	Best Time to Buy and Sell Stock III	Hard	52.6%	25.0%
131	Palindrome Partitioning	Medium	73.2%	25.0%
133	Clone Graph	Medium	63.9%	25.0%
139	Word Break	Medium	48.8%	25.0%
143	Reorder List	Medium	63.9%	25.0%
148	Sort List	Medium	63.2%	25.0%
153	Find Minimum in Rotated Sorted Array	Medium	53.4%	25.0%
175	Combine Two Tables	Easy	78.7%	25.0%
176	Second Highest Salary	Medium	45.5%	25.0%
181	Employees Earning More Than Their Managers	Easy	72.3%	25.0%
191	Number of 1 Bits	Easy	75.7%	25.0%
204	Count Primes	Medium	35.5%	25.0%
208	Implement Trie (Prefix Tree)	Medium	68.8%	25.0%
209	Minimum Size Subarray Sum	Medium	50.3%	25.0%
213	House Robber II	Medium	44.3%	25.0%
214	Shortest Palindrome	Hard	41.4%	25.0%
221	Maximal Square	Medium	49.6%	25.0%
240	Search a 2D Matrix II	Medium	56.3%	25.0%
274	H-Index	Medium	40.9%	25.0%
278	First Bad Version	Easy	46.5%	25.0%
287	Find the Duplicate Number	Medium	63.6%	25.0%
301	Remove Invalid Parentheses	Hard	49.6%	25.0%
310	Minimum Height Trees	Medium	42.3%	25.0%
367	Valid Perfect Square	Easy	44.5%	25.0%
374	Guess Number Higher or Lower	Easy	56.6%	25.0%
383	Ransom Note	Easy	65.2%	25.0%
394	Decode String	Medium	61.9%	25.0%
438	Find All Anagrams in a String	Medium	52.9%	25.0%
442	Find All Duplicates in an Array	Medium	76.7%	25.0%
448	Find All Numbers Disappeared in an Array	Easy	63.1%	25.0%
463	Island Perimeter	Easy	74.0%	25.0%
493	Reverse Pairs	Hard	33.2%	25.0%
1721	Swapping Nodes in a Linked List	Medium	69.0%	25.0%
535	Encode and Decode TinyURL	Medium	86.5%	25.0%
542	01 Matrix	Medium	52.7%	25.0%
543	Diameter of Binary Tree	Easy	64.6%	25.0%
581	Shortest Unsorted Continuous Subarray	Medium	37.8%	25.0%
605	Can Place Flowers	Easy	29.0%	25.0%
606	Construct String from Binary Tree	Medium	70.4%	25.0%
628	Maximum Product of Three Numbers	Easy	45.6%	25.0%
696	Count Binary Substrings	Easy	66.3%	25.0%
698	Partition to K Equal Sum Subsets	Medium	38.3%	25.0%
724	Find Pivot Index	Easy	61.5%	25.0%
791	Custom Sort String	Medium	72.2%	25.0%
796	Rotate String	Easy	64.7%	25.0%
705	Design HashSet	Easy	67.5%	25.0%
802	Find Eventual Safe States	Medium	69.8%	25.0%
836	Rectangle Overlap	Easy	46.1%	25.0%
852	Peak Index in a Mountain Array	Medium	67.1%	25.0%
867	Transpose Matrix	Easy	75.2%	25.0%
876	Middle of the Linked List	Easy	81.2%	25.0%
896	Monotonic Array	Easy	62.1%	25.0%
901	Online Stock Span	Medium	68.3%	25.0%
925	Long Pressed Name	Easy	32.7%	25.0%
930	Binary Subarrays With Sum	Medium	67.5%	25.0%
938	Range Sum of BST	Easy	87.5%	25.0%
974	Subarray Sums Divisible by K	Medium	55.8%	25.0%
987	Vertical Order Traversal of a Binary Tree	Hard	52.7%	25.0%
992	Subarrays with K Different Integers	Hard	67.0%	25.0%
993	Cousins in Binary Tree	Easy	58.8%	25.0%
1047	Remove All Adjacent Duplicates In String	Easy	72.3%	25.0%
1048	Longest String Chain	Medium	62.6%	25.0%
1068	Product Sales Analysis I	Easy	85.3%	25.0%
2215	Find the Difference of Two Arrays	Easy	81.1%	25.0%
1312	Minimum Insertion Steps to Make a String Palindrome	Hard	73.3%	25.0%
1347	Minimum Number of Steps to Make Two Strings Anagram	Medium	82.4%	25.0%
1389	Create Target Array in the Given Order	Easy	86.4%	25.0%
1431	Kids With the Greatest Number of Candies	Easy	88.1%	25.0%
1420	Build Array Where You Can Find The Maximum Exactly K Comparisons	Hard	66.2%	25.0%
1423	Maximum Points You Can Obtain from Cards	Medium	56.8%	25.0%
1457	Pseudo-Palindromic Paths in a Binary Tree	Medium	68.4%	25.0%
1480	Running Sum of 1d Array	Easy	86.9%	25.0%
1496	Path Crossing	Easy	62.5%	25.0%
1579	Remove Max Number of Edges to Keep Graph Fully Traversable	Hard	70.3%	25.0%
1582	Special Positions in a Binary Matrix	Easy	68.8%	25.0%
1609	Even Odd Tree	Medium	66.8%	25.0%
1657	Determine if Two Strings Are Close	Medium	54.2%	25.0%
1672	Richest Customer Wealth	Easy	88.6%	25.0%
1716	Calculate Money in Leetcode Bank	Easy	82.3%	25.0%
1704	Determine if String Halves Are Alike	Easy	78.7%	25.0%
1752	Check if Array Is Sorted and Rotated	Easy	55.5%	25.0%
1920	Build Array from Permutation	Easy	91.1%	25.0%
2035	Partition Array Into Two Arrays to Minimize Sum Difference	Hard	22.6%	25.0%
2413	Smallest Even Multiple	Easy	88.2%	25.0%
2444	Count Subarrays With Fixed Bounds	Hard	69.3%	25.0%
2487	Remove Nodes From Linked List	Medium	74.7%	25.0%
2482	Difference Between Ones and Zeros in Row and Column	Medium	84.4%	25.0%
2715	Timeout Cancellation	Easy	89.5%	25.0%
2727	Is Object Empty	Easy	81.6%	25.0%
2870	Minimum Number of Operations to Make Array Empty	Medium	62.0%	25.0%
2996	Smallest Missing Integer Greater Than Sequential Prefix Sum	Easy	34.7%	25.0%
3000	Maximum Area of Longest Diagonal Rectangle	Easy	45.8%	25.0%
2976	Minimum Cost to Convert String I	Medium	57.4%	25.0%
1688	Count of Matches in Tournament	Easy	86.2%	25.0%
224	Basic Calculator	Hard	46.3%	25.0%
1335	Minimum Difficulty of a Job Schedule	Hard	59.7%	25.0%
303	Range Sum Query - Immutable	Easy	70.4%	25.0%
638	Shopping Offers	Medium	52.1%	25.0%
171	Excel Sheet Column Number	Easy	66.7%	25.0%
525	Contiguous Array	Medium	50.1%	25.0%
3046	Split the Array	Easy	60.5%	25.0%
695	Max Area of Island	Medium	73.6%	25.0%
2918	Minimum Equal Sum of Two Arrays After Replacing Zeros	Medium	50.2%	25.0%
771	Jewels and Stones	Easy	89.4%	25.0%
355	Design Twitter	Medium	43.7%	25.0%
2536	Increment Submatrices by One	Medium	73.8%	25.0%
1004	Max Consecutive Ones III	Medium	66.9%	25.0%
621	Task Scheduler	Medium	62.3%	25.0%
222	Count Complete Tree Nodes	Easy	71.4%	25.0%
669	Trim a Binary Search Tree	Medium	66.5%	25.0%
416	Partition Equal Subset Sum	Medium	49.0%	25.0%
2275	Largest Combination With Bitwise AND Greater Than Zero	Medium	80.8%	25.0%
545	Boundary of Binary Tree	Medium	47.6%	25.0%
160	Intersection of Two Linked Lists	Easy	62.5%	25.0%
721	Accounts Merge	Medium	60.5%	25.0%
63	Unique Paths II	Medium	43.8%	25.0%
339	Nested List Weight Sum	Medium	85.8%	25.0%
1507	Reformat Date	Easy	67.8%	25.0%
1963	Minimum Number of Swaps to Make the String Balanced	Medium	78.1%	25.0%
1823	Find the Winner of the Circular Game	Medium	82.1%	25.0%
2291	Maximum Profit From Trading Stocks	Medium	47.3%	25.0%
59	Spiral Matrix II	Medium	74.2%	25.0%

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