LeetCode Top Interview Questions

LeetCode Top Interview Questions

https://leetcode.com/problemset/top-interview-questions/

#	No.	Title	Acceptance	Difficulty
1	1	Two Sum	38.80%	Easy
2	2	Add Two Numbers	29.10%	Medium
3	3	Longest Substring Without Repeating Characters	25.00%	Medium
4	4	Median of Two Sorted Arrays	23.80%	Hard
5	5	Longest Palindromic Substring	25.60%	Medium
6	7	Reverse Integer	24.40%	Easy
7	8	String to Integer (atoi)	14.10%	Medium
8	10	Regular Expression Matching	24.40%	Hard
9	11	Container With Most Water	38.50%	Medium
10	13	Roman to Integer	49.40%	Easy
11	14	Longest Common Prefix	31.90%	Easy
12	15	3Sum	22.00%	Medium
13	17	Letter Combinations of a Phone Number	38.00%	Medium
14	19	Remove Nth Node From End of List	33.70%	Medium
15	20	Valid Parentheses	34.60%	Easy
16	21	Merge Two Sorted Lists	43.00%	Easy
17	22	Generate Parentheses	50.00%	Medium
18	23	Merge k Sorted Lists	30.00%	Hard
19	26	Remove Duplicates from Sorted Array	37.70%	Easy
20	28	Implement strStr()	29.90%	Easy
21	29	Divide Two Integers	15.70%	Medium
22	33	Search in Rotated Sorted Array	32.10%	Medium
23	34	Find First and Last Position of Element in Sorted Array	32.00%	Medium
24	36	Valid Sudoku	39.30%	Medium
25	38	Count and Say	37.80%	Easy
26	41	First Missing Positive	26.70%	Hard
27	42	Trapping Rain Water	39.00%	Hard
28	44	Wildcard Matching	21.50%	Hard
29	46	Permutations	49.80%	Medium
30	48	Rotate Image	43.90%	Medium
31	49	Group Anagrams	41.10%	Medium
32	50	Pow(x, n)	26.50%	Medium
33	53	Maximum Subarray	41.20%	Easy
34	54	Spiral Matrix	28.10%	Medium
35	55	Jump Game	30.20%	Medium
36	56	Merge Intervals	33.00%	Medium
37	62	Unique Paths	44.30%	Medium
38	66	Plus One	40.00%	Easy
39	69	Sqrt(x)	29.50%	Easy
40	70	Climbing Stairs	42.00%	Easy
41	73	Set Matrix Zeroes	37.50%	Medium
42	75	Sort Colors	39.90%	Medium
43	76	Minimum Window Substring	28.00%	Hard
44	78	Subsets	47.50%	Medium
45	79	Word Search	28.90%	Medium
46	84	Largest Rectangle in Histogram	28.60%	Hard
47	88	Merge Sorted Array	33.20%	Easy
48	91	Decode Ways	20.90%	Medium
49	94	Binary Tree Inorder Traversal	52.00%	Medium
50	98	Validate Binary Search Tree	24.40%	Medium
51	101	Symmetric Tree	41.40%	Easy
52	102	Binary Tree Level Order Traversal	44.50%	Medium
53	103	Binary Tree Zigzag Level Order Traversal	38.30%	Medium
54	104	Maximum Depth of Binary Tree	56.70%	Easy
55	105	Construct Binary Tree from Preorder and Inorder Traversal	36.40%	Medium
56	108	Convert Sorted Array to Binary Search Tree	46.40%	Easy
57	116	Populating Next Right Pointers in Each Node	36.60%	Medium
58	118	Pascal's Triangle	41.90%	Easy
59	121	Best Time to Buy and Sell Stock	44.20%	Easy
60	122	Best Time to Buy and Sell Stock II	49.00%	Easy
61	124	Binary Tree Maximum Path Sum	27.90%	Hard
62	125	Valid Palindrome	28.40%	Easy
63	127	Word Ladder	21.00%	Medium
64	128	Longest Consecutive Sequence	39.30%	Hard
65	130	Surrounded Regions	20.70%	Medium
66	131	Palindrome Partitioning	37.30%	Medium
67	134	Gas Station	31.20%	Medium
68	136	Single Number	56.90%	Easy
69	138	Copy List with Random Pointer	25.70%	Medium
70	139	Word Break	32.50%	Medium
71	140	Word Break II	25.30%	Hard
72	141	Linked List Cycle	34.70%	Easy
73	146	LRU Cache	21.20%	Hard
74	148	Sort List	31.60%	Medium
75	149	Max Points on a Line	15.20%	Hard
76	150	Evaluate Reverse Polish Notation	29.70%	Medium
77	152	Maximum Product Subarray	27.40%	Medium
78	155	Min Stack	33.00%	Easy
79	160	Intersection of Two Linked Lists	30.80%	Easy
80	162	Find Peak Element	39.70%	Medium
81	163	Missing Ranges	22.90%	Medium
82	166	Fraction to Recurring Decimal	18.50%	Medium
83	169	Majority Element	49.40%	Easy
84	171	Excel Sheet Column Number	49.70%	Easy
85	172	Factorial Trailing Zeroes	37.00%	Easy
86	179	Largest Number	24.20%	Medium
87	189	Rotate Array	26.80%	Easy
88	190	Reverse Bits	29.30%	Easy
89	191	Number of 1 Bits	40.80%	Easy
90	198	House Robber	40.40%	Easy
91	200	Number of Islands	37.90%	Medium
92	202	Happy Number	42.70%	Easy
93	204	Count Primes	27.10%	Easy
94	206	Reverse Linked List	49.20%	Easy
95	207	Course Schedule	34.80%	Medium
96	208	Implement Trie (Prefix Tree)	33.30%	Medium
97	210	Course Schedule II	31.60%	Medium
98	212	Word Search II	25.80%	Hard
99	215	Kth Largest Element in an Array	42.60%	Medium
100	217	Contains Duplicate	48.70%	Easy
101	218	The Skyline Problem	29.80%	Hard
102	227	Basic Calculator II	31.00%	Medium
103	230	Kth Smallest Element in a BST	47.20%	Medium
104	234	Palindrome Linked List	34.20%	Easy
105	236	Lowest Common Ancestor of a Binary Tree	31.60%	Medium
106	237	Delete Node in a Linked List	49.00%	Easy
107	238	Product of Array Except Self	51.50%	Medium
108	239	Sliding Window Maximum	35.20%	Hard
109	240	Search a 2D Matrix II	39.40%	Medium
110	242	Valid Anagram	48.80%	Easy
111	251	Flatten 2D Vector	42.00%	Medium
112	253	Meeting Rooms II	40.10%	Medium
113	268	Missing Number	46.00%	Easy
114	269	Alien Dictionary	27.50%	Hard
115	277	Find the Celebrity	35.30%	Medium
116	279	Perfect Squares	38.70%	Medium
117	283	Move Zeroes	52.30%	Easy
118	285	Inorder Successor in BST	34.10%	Medium
119	287	Find the Duplicate Number	45.90%	Medium
120	289	Game of Life	39.30%	Medium
121	295	Find Median from Data Stream	31.40%	Hard
122	297	Serialize and Deserialize Binary Tree	36.50%	Hard
123	300	Longest Increasing Subsequence	39.20%	Medium
124	308	Range Sum Query 2D - Mutable	27.90%	Hard
125	315	Count of Smaller Numbers After Self	35.50%	Hard
126	322	Coin Change	27.20%	Medium
127	324	Wiggle Sort II	26.60%	Medium
128	326	Power of Three	41.00%	Easy
129	328	Odd Even Linked List	46.30%	Medium
130	329	Longest Increasing Path in a Matrix	37.70%	Hard
131	334	Increasing Triplet Subsequence	39.50%	Medium
132	340	Longest Substring with At Most K Distinct Characters	38.50%	Hard
133	341	Flatten Nested List Iterator	44.30%	Medium
134	344	Reverse String	61.30%	Easy
135	347	Top K Frequent Elements	50.80%	Medium
136	348	Design Tic-Tac-Toe	46.80%	Medium
137	350	Intersection of Two Arrays II	44.70%	Easy
138	371	Sum of Two Integers	50.80%	Easy
139	378	Kth Smallest Element in a Sorted Matrix	46.20%	Medium
140	380	Insert Delete GetRandom O(1)	40.50%	Medium
141	384	Shuffle an Array	47.90%	Medium
142	387	First Unique Character in a String	47.60%	Easy
143	395	Longest Substring with At Least K Repeating Characters	36.20%	Medium
144	412	Fizz Buzz	58.10%	Easy
145	454	4Sum II	48.20%	Mediu