分类
分治法/二叉树
100 Same Tree
101 Symmetric Tree
104 Maximum Depth of Binary Tree
226 Invert Binary Tree
437 Path Sum III *
538 Convert BST to Greater Tree
543 Diameter of Binary Tree
动态规划
53 Maximum Subarray
70 Climbing Stairs
121 Best Time to Buy and Sell Stock *
141 Linked List Cycle
198 House Robber
归纳法
66 Plus One
字符串处理
38 Count and Say
58 Length of Last Word
14 Longest Common Prefix
28 Implement strStr()
344 Reverse String
快慢指针
26 Remove Duplicates from Sorted Array
27 Remove Element
链表
21 Merge Two Sorted Lists
160 Intersection of Two Linked Lists
206 Reverse Linked List
234 Palindrome Linked List
hash表
1 Two Sum
栈
155 Min Stack
数组
169 Majority Element
35 Search Insert Position
283 Move Zeroes
448 Find All Numbers Disappeared in an Array
数
7 Reverse Integer
9 Palindrome Number
136 Single Number
204 Count Primes
461 Hamming Distance
其他
20 Valid Parentheses