leetcode算法题目

题目由java和python实现，按照类型分为：array，list，string，hashtable，math，tree：

1.array

题号	题目内容	题目难度
733	Flood Fill	Easy
240	Search 2D	Easy
57	Insert Interval	Middle
42	Trapping Rain Water	Hard
84	Largest Rectangle in Histogram	Hard
*152	Maximum Product Subarray	Middle
85	Maximal Rectangle	Hard
322	Coin Change	Middle
621	Task Scheduler	Middle
221	Maximal Square	Middle
279	Perfect Squares	Middle
62	Unique Paths	Middle
11	Container With Most Water	Middle
287	Find the Duplicate Number	Middle
*128	Longest Consecutive Sequence	Middle
*215	Kth Largest Element in an Array	Middle
*55	Jump Game	Middle
300	Longest Increasing Subsequence	Middle
*64	Minimum Path Sum	Middle
56	Merge Intervals	Middle
72	Edit Distance	Middle
39	Combination Sum	Middle
200	Number of Islands	Middle
560	Subarray Sum Equals K	Middle
406	Queue Reconstruction by Height	Middle
416	Partition Equal Subset Sum	Middle
4	Median of Two Sorted Arrays	Middle
121	Best Time to Buy and Sell Stock	Easy
581	Shortest Unsorted Continuous Subarray	Easy
70	Climbing Stairs	Easy
437	Path Sum III	Middle
*198	House Robber	Easy
2	Add Two Numbers	Easy
15	Three Sum	Easy
448	Find All Numbers Disappeared in an Array	Middle
283	Move Zeroes	Easy
169	Majority Element	Easy
494	Target Sum	Easy
349	Intersection of Two Arrays	Easy
350	Intersection of Two Arrays II	Easy
136	Single Number	Easy
7	Reverse Integer	Easy
347	Top K Frequent Elements	Easy
35	Search Insert Position	Easy
*268	Missing Number	Easy
*521	Longest Uncommon Subsequence I	Easy
217	Contains Duplicate	Easy
728	Self Dividing Numbers	Easy
122	Best Time Buy	Easy
1217	Play With Chips	Easy
26	Remove Duplicates from Sorted Array	Easy
53	Maximum Subarray	Easy

题号	题目内容	题目难度
114	Flatten Binary Tree to Linked List	Middle
23	Merge k Sorted Lists	Middle
*142	Linked List Cycle II	Middle
160	Intersection of Two Linked Lists	Easy
234	Palindrome Linked List	Easy
155	Min Stack	Easy
148	Sort List	Easy
21	Merge Two Sorted Lists	Easy
206	Reverse Linked List	Easy
141	Linked List Cycle	Easy
19	Remove Nth Node From End of List	Easy

题号	题目内容	题目难度
32	Longest Valid Parentheses	Hard
*22	Generate Parentheses	Middle
49	Group Anagrams	Middle
139	Word Break	Middle
*5	Longest Palindromic Substring	Easy
394	Decode String	Middle
3	Longest Substring Without Repeating Characters	Easy
917	Reverse Only Letters	Easy
520	Detect Capital	Easy
541	Reverse String II	Easy
66	Plus one	Easy
647	Palindromic Substrings	Easy
438	Find All Anagrams in a String	Easy
67	Add Binary	Easy

题号	题目内容	题目难度
1	Two Sum	Easy
3	Pairs Of Parentheses	Middle
48	Rotate Image	Middle
461	Hamming Distance	Easy
771	Jewels and Stones	Easy
167	Two Sum II - Input array is sorted	Easy

题号	题目内容	题目难度
258	Add Digits	Easy
1154	Day Of Year	Easy

题号	题目内容	题目难度
94	Binary Tree Inorder Traversal	Easy
144	Binary Tree PreOrder Traversal	Middle
145	Binary Tree Post Order Traversal	Middle
236	Lowest Common Ancestor of a Binary Tree	Middle
*337	House Robber III	Middle
102	Binary Tree Level Order Traversal	Middle
94	Binary Tree Inorder Traversal	Middle
538	Convert BST to Greater Tree	Easy
572	Subtree of Another Tree	Easy
543	Diameter of Binary Tree	Easy
101	Symmetric Tree	Easy
226	Invert Binary Tree	Easy
104	Maximum Depth of Binary Tree	Easy
617	Merge Two Binary Trees	Easy
*606	Construct String from Binary Tree	Easy