ricky9090 / LeetCodePractice

LeetCode练习

LeetCode Practice

我的LeetCode练习

项目结构

.
|--src
   |--main
   |  |--java  //题目答案，包名对应题目编号。50道题分为一个Section
   |--test
      |--java  //单元测试

使用Intellij IDEA时设置src/main/java为源码目录，src/test/java为测试源码目录。

题目列表

#	Title	Solution	Difficulty
1	Two Sum	Solution	Easy
2	Add Two Numbers	Solution	Medium
4	Median of Two Sorted Arrays	Solution	Hard
6	ZigZag Conversion	Solution	Medium
7	Reverse Integer	Solution	Easy
9	Palindrome Number	Solution	Easy
11	Container With Most Water	Solution	Medium
12	Integer to Roman	Solution	Medium
13	Roman to Integer	Solution	Easy
14	Longest Common Prefix	Solution	Easy
17	Letter Combinations of a Phone Number	Solution	Medium
19	Remove Nth Node From End of List	Solution	Medium
20	Valid Parentheses	Solution	Easy
21	Merge Two Sorted Lists	Solution	Easy
22	Generate Parentheses	Solution	Medium
24	Swap Nodes in Pairs	Solution	Medium
26	Remove Duplicates from Sorted Array	Solution	Easy
27	Remove Element	Solution	Easy
35	Search Insert Position	Solution	Easy
36	Valid Sudoku	Solution	Medium
39	Combination Sum	Solution	Medium
40	Combination Sum II	Solution	Medium
46	Permutations	Solution	Medium
47	Permutations II	Solution	Medium
48	Rotate Image	Solution	Medium
53	Maximum Subarray	Solution	Easy
54	Spiral Matrix	Solution	Medium
58	Length of Last Word	Solution	Easy
59	Spiral Matrix II	Solution	Medium
62	Unique Paths	Solution	Medium
63	Unique Paths II	Solution	Medium
64	Minimum Path Sum	Solution	Medium
66	Plus One	Solution	Easy
67	Add Binary	Solution	Easy
69	Sqrt(x)	Solution	Easy
70	Climbing Stairs	Solution	Easy
73	Set Matrix Zeroes	Solution	Medium
77	Combinations	Solution	Medium
78	Subsets	Solution	Medium
83	Remove Duplicates from Sorted List	Solution	Easy
88	Merge Sorted Array	Solution	Easy
94	Binary Tree Inorder Traversal	Solution	Medium
96	Unique Binary Search Trees	Solution	Medium
100	Same Tree	Solution	Easy
101	Symmetric Tree	Solution	Easy
102	Binary Tree Level Order Traversal	Solution	Medium
103	Binary Tree Zigzag Level Order Traversal	Solution	Medium
104	Maximum Depth of Binary Tree	Solution	Easy
105	Construct Binary Tree from Preorder and Inorder Traversal	Solution	Medium
106	Construct Binary Tree from Inorder and Postorder Traversal	Solution	Medium
107	Binary Tree Level Order Traversal II	Solution	Easy
108	Convert Sorted Array to Binary Search Tree	Solution	Easy
110	Balanced Binary Tree	Solution	Easy
111	Minimum Depth of Binary Tree	Solution	Easy
112	Path Sum	Solution	Easy
113	Path Sum II	Solution	Medium
114	Flatten Binary Tree to Linked List	Solution	Medium
118	Pascal's Triangle	Solution	Easy
119	Pascal's Triangle II	Solution	Easy
121	Best Time to Buy and Sell Stock	Solution	Easy
122	Best Time to Buy and Sell Stock II	Solution	Easy
129	Sum Root to Leaf Numbers	Solution	Medium
136	Single Number	Solution	Easy
137	Single Number II	Solution	Medium
141	Linked List Cycle	Solution	Easy
144	Binary Tree Preorder Traversal	Solution	Medium
155	Min Stack	Solution	Easy
169	Majority Element	Solution	Easy
172	Factorial Trailing Zeroes	Solution	Easy
189	Rotate Array	Solution	Easy
191	Number of 1 Bits	Solution	Easy
198	House Robber	Solution	Easy
203	Remove Linked List Elements	Solution	Easy
205	Isomorphic Strings	Solution	Easy
206	Reverse Linked List	Solution	Easy
216	Combination Sum III	Solution	Medium
217	Contains Duplicate	Solution	Easy
226	Invert Binary Tree	Solution	Easy
231	Power of Two	Solution	Easy
237	Delete Node in a Linked List	Solution	Easy
258	Add Digits	Solution	Easy
283	Move Zeroes	Solution	Easy
292	Nim Game	Solution	Easy
303	Range Sum Query - Immutable	Solution	Easy
326	Power of Three	Solution	Easy
344	Reverse String	Solution	Easy
347	Top K Frequent Elements	Solution	Medium
371	Sum of Two Integers	Solution	Easy
374	Guess Number Higher or Lower	Solution	Easy
389	Find the Difference	Solution	Easy
412	Fizz Buzz	Solution	Easy
429	N-ary Tree Level Order Traversal	Solution	Medium
448	Find All Numbers Disappeared in an Array	Solution	Easy
461	Hamming Distance	Solution	Easy
463	Island Perimeter	Solution	Easy
509	Fibonacci Number	Solution	Easy
538	Convert BST to Greater Tree	Solution	Easy
617	Merge Two Binary Trees	Solution	Easy
637	Average of Levels in Binary Tree	Solution	Easy
657	Robot Return to Origin	Solution	Easy
700	Search in a Binary Search Tree	Solution	Easy
704	Binary Search	Solution	Easy
709	To Lower Case	Solution	Easy
771	Jewels and Stones	Solution	Easy
783	Minimum Distance Between BST Nodes	Solution	Easy
867	Transpose Matrix	Solution	Easy
876	Middle of the Linked List	Solution	Easy
961	N-Repeated Element in Size 2N Array	Solution	Easy
965	Univalued Binary Tree	Solution	Easy
1108	Defanging an IP Address	Solution	Easy