leetcode-java

LeetCode solutions written in Java.

持续更新中...

参考 Blankj/awesome-java-leetcode，源代码都在 src 目录中，相关解题思路和分析都在 note 目录中。

Easy

以下是 LeetCode 官方精选的经典面试问题列表： Top Interview Questions Easy Collection

Array

#	Title
26	Remove Duplicates from Sorted Array
122	Best Time to Buy and Sell Stock II
189	Rotate Array
217	Contains Duplicate
136	Single Number
350	Intersection of Two Arrays II
66	Plus One
283	Move Zeroes
1	Two Sum
36	Valid Sudoku
48	Rotate Image

Strings

#	Title
344	Reverse String
7	Reverse Integer
387	First Unique Character in a String
242	Valid Anagram
125	Valid Palindrome
8	String to Integer (atoi)
28	Implement strStr()
38	count-and-say
14	Longest Common Prefix

Linked List

#	Title
237	Delete Node in a Linked List
19	Remove Nth Node From End of List
206	Reverse Linked List
21	Merge Two Sorted Lists
234	Palindrome Linked List
141	Linked List Cycle

Trees

#	Title
104	Maximum Depth of Binary Tree
98	Validate Binary Search Tree
101	Symmetric Tree
102	Binary Tree Level Order Traversal
108	Convert Sorted Array to Binary Search Tree

Sorting and Searching

#	Title
88	Merge Sorted Array
278	First Bad Version

Dynamic Programming

#	Title
70	Climbing Stairs
121	Best Time to Buy and Sell Stock
53	Maximum Subarray
198	House Robber

Design

#	Title
384	Shuffle an Array
155	Min Stack

Math

#	Title
412	Fizz Buzz
204	Count Primes
326	Power of Three
13	Roman to Integer

Others

#	Title
191	Number of 1 Bits
461	Hamming Distance
190	Reverse Bits
118	Pascal's Triangle
20	Valid Parentheses
268	Missing Number