LeetCode刷题

Top 100 liked Questions

Easy

1. Two sum
2. Valid Parentheses
3. Merge Two Sorted Lists
4. Maximum Subarray
5. Climbing Stairs
6. Symmetric Tree
7. Maximum Depth of Binary Tree
8. Best Time to Buy and Sell Stock
9. Single Number
10. Linked List Cycle
11. Min Stack
12. Intersection of Two Linked Lists
13. Majority Element
14. House Robber
15. Reverse Linked List
16. Invert Binary Tree
17. Palindrome Linked List
18. Move Zeroes
19. Path Sum III
20. Find All Numbers Disappeared in an Array
21. Convert BST to Greater Tree
22. Diameter of Binary Tree
23. Shortest Unsorted Continuous Subarray
24. Merge Two Binary Trees

Medium

1. Add Two Numbers
2. Longest Substring Without Repeating Characters
3. Longest Palindromic Substring
4. Container With Most Water
5. 3Sum
6. Letter Combinations of a Phone Number
7. Remove Nth Node From End of List
8. Generate Parentheses
9. Next Permutation
10. Search in Rotated Sorted Array
11. Find First and Last Position of Element in Sorted Array
12. Combination Sum
13. Permutations
14. Rotate Image
15. Group Anagrams
16. Jump Game
17. Merge Intervals
18. Merge Intervals
19. Minimum Path Sum
20. Sort Colors
21. Subsets
22. Word Search
23. Binary Tree Inorder Traversal
24. Unique Binary Search Trees
25. Validate Binary Search Tree
26. Binary Tree Level Order Traversal
27. Construct Binary Tree from Preorder and Inorder Traversal
28. Flatten Binary Tree to Linked List
29. Word Break
30. Linked List Cycle II
31. LRU Cache
32. Sort List
33. Maximum Product Subarray
34. Number of Islands
35. Course Schedule
36. Implement Trie (Prefix Tree)
37. Kth Largest Element in an Array
38. Maximal Square
39. Lowest Common Ancestor of a Binary Tree
40. Product of Array Except Self
41. Search a 2D Matrix II
42. Meeting Rooms II
43. Perfect Squares
44. Find the Duplicate Number
45. Longest Increasing Subsequence
46. Best Time to Buy and Sell Stock with Cooldown
47. Coin Change
48. House Robber III
49. Counting Bits
50. Top K Frequent Elements
51. Decode String
52. Evaluate Division
53. Queue Reconstruction by Height
54. Partition Equal Subset Sum
55. Find All Anagrams in a String
56. Target Sum
57. Subarray Sum Equals K
58. Task Scheduler
59. Palindromic Substrings
60. Daily Temperatures

Hard

1. Median of Two Sorted Arrays
2. Regular Expression Matching
3. Merge k Sorted Lists
4. Longest Valid Parentheses
5. Trapping Rain Water
6. Edit Distance
7. Minimum Window Substring
8. Largest Rectangle in Histogram
9. Maximal Rectangle
10. Binary Tree Maximum Path Sum
11. Longest Consecutive Sequence
12. Sliding Window Maximum
13. Find Median from Data Stream
14. Serialize and Deserialize Binary Tree
15. Remove Invalid Parentheses
16. Burst Balloons