[Leetcode] Top interview problems on Leetcode

最近發現 Leetcode 改版了，原來在 Problems 的 Top interview questions 的篩選分類已經不見，只剩下 Explore 裡面的 Top interview questions。但是菜雞我刷到一半啊啊啊！！！只好自己備份一下原來的 Top interview questions 清單了 🫠

Top interview problems on Leetcode

題號	題目名稱	難度
1	Two Sum	Easy
2	Add Two Numbers	Medium
3	Longest Substring Without Repeating Characters	Medium
4	Median of Two Sorted Arrays	Hard
5	Longest Palindromic Substring	Medium
7	Reverse Integer	Medium
8	String to Integer (atoi)	Medium
10	Regular Expression Matching	Hard
11	Container With Most Water	Medium
13	Roman to Integer	Easy
14	Longest Common Prefix	Easy
15	3Sum	Medium
17	Letter Combinations of a Phone Number	Medium
19	Remove Nth Node From End of List	Medium
20	Valid Parentheses	Easy
21	Merge Two Sorted Lists	Easy
22	Generate Parentheses	Medium
23	Merge k Sorted Lists	Hard
26	Remove Duplicates from Sorted Array	Easy
28	Find the Index of the First Occurrence in a String	Easy
29	Divide Two Integers	Medium
33	Search in Rotated Sorted Array	Medium
34	Find First and Last Position of Element in Sorted Array	Medium
36	Valid Sudoku	Medium
38	Count and Say	Medium
41	First Missing Positive	Hard
42	Trapping Rain Water	Hard
44	Wildcard Matching	Hard
46	Permutations	Medium
48	Rotate Image	Medium
49	Group Anagrams	Medium
50	Pow(x, n)	Medium
53	Maximum Subarray	Medium
54	Spiral Matrix	Medium
55	Jump Game	Medium
56	Merge Intervals	Medium
62	Unique Paths	Medium
66	Plus One	Easy
69	Sqrt(x)	Easy
70	Climbing Stairs	Easy
73	Set Matrix Zeroes	Medium
75	Sort Colors	Medium
76	Minimum Window Substring	Hard
78	Subsets	Medium
79	Word Search	Medium
84	Largest Rectangle in Histogram	Hard
88	Merge Sorted Array	Easy
91	Decode Ways	Medium
94	Binary Tree Inorder Traversal	Medium
98	Validate Binary Search Tree	Medium
101	Symmetric Tree	Easy
102	Binary Tree Level Order Traversal	Medium
103	Binary Tree Zigzag Level Order Traversal	Medium
104	Maximum Depth of Binary Tree	Easy
105	Construct Binary Tree from Preorder and Inorder Traversal	Medium
108	Convert Sorted Array to Binary Search Tree	Easy
116	Populating Next Right Pointers in Each Node	Medium
118	Pascal's Triangle	Easy
121	Best Time to Buy and Sell Stock	Easy
122	Best Time to Buy and Sell Stock II	Medium
124	Binary Tree Maximum Path Sum	Hard
125	Valid Palindrome	Easy
127	Word Ladder	Hard
128	Longest Consecutive Sequence	Medium
130	Surrounded Regions	Medium
131	Palindrome Partitioning	Medium
134	Gas Station	Medium
136	Single Number	Easy
138	Copy List with Random Pointer	Medium
139	Word Break	Medium
140	Word Break II	Hard
141	Linked List Cycle	Easy
146	LRU Cache	Medium
148	Sort List	Medium
149	Max Points on a Line	Hard
150	Evaluate Reverse Polish Notation	Medium
152	Maximum Product Subarray	Medium
155	Min Stack	Medium
160	Intersection of Two Linked Lists	Easy
162	Find Peak Element	Medium
163	Missing Ranges	Medium
166	Fraction to Recurring Decimal	Medium
169	Majority Element	Easy
171	Excel Sheet Column Number	Easy
172	Factorial Trailing Zeroes	Medium
179	Largest Number	Medium
189	Rotate Array	Medium
190	Reverse Bits	Easy
191	Number of 1 Bits	Easy
198	House Robber	Medium
200	Number of Islands	Medium
202	Happy Number	Easy
204	Count Primes	Medium
206	Reverse Linked List	Easy
207	Course Schedule	Medium
208	Implement Trie (Prefix Tree)	Medium
210	Course Schedule II	Medium
212	Word Search II	Hard
215	Kth Largest Element in an Array	Medium
217	Contains Duplicate	Easy
218	The Skyline Problem	Hard
227	Basic Calculator II	Medium
230	Kth Smallest Element in a BST	Medium
234	Palindrome Linked List	Easy
236	Lowest Common Ancestor of a Binary Tree	Medium
237	Delete Node in a Linked List	Medium
238	Product of Array Except Self	Medium
239	Sliding Window Maximum	Hard
240	Search a 2D Matrix II	Medium
242	Valid Anagram	Easy
251	Flatten 2D Vector	Medium
253	Meeting Rooms II	Medium
268	Missing Number	Easy
269	Alien Dictionary	Hard
277	Find the Celebrity	Medium
285	Inorder Successor in BST	Medium
308	Range Sum Query 2D - Mutable	Hard
340	Longest Substring with At Most K Distinct Characters	Hard
348	Design Tic-Tac-Toe	Medium