【LeetCode】: 邁向光明之路 - C++

精選題型

• 1. Two Sum
• 2. Add Two Numbers
• 3. Longest Substring Without Repeating Characters
• 53. Maximum Subarray
• 226. Invert Binary Tree
• 268. Missing Number
• 542. 01 Matrix

Easy

• 1. Two Sum
  • Array Hash Table
• 9. Palindrome Number
  • Math
• 13. Roman to Integer
  • Hash Table Math String
• 14. Longest Common Prefix
  • String
• 20. Valid Parentheses
  • Sorting Stack
• 21. Merge Two Sorted Lists
  • Linked List Recursion
• 35. Search Insert Position
  • Array Binary Search
• 53. Maximum Subarray
  • Array Divide and Conquer
• 57. Insert Interval
  • Array
• 67. Add Binary
  • Math String Bit Manipulation
• 70. Climbing Stairs
  • Math Dynamic Programming Memoization
• 100. Same Tree
  • Tree Depth-First Search
• 101. Symmetric Tree
  • Tree Depth-First Search
• 104. Maximum Depth of Binary Tree
  • Tree Depth-First Search
• 108. Convert Sorted Array to Binary Search Tree
  • Array Divide and Conquer Tree
• 110. Balanced Binary Tree
  • Tree Depth-First Search Binary Tree
• 118. Pascal's Triangle
  • Array Dynamic Programming
• 121. Best Time to Buy and Sell Stock
  • Array Dynamic Programming
• 125. Valid Palindrome
  • Two Pointers String
• 136. Single Number
  • Array Bit Manipulation
• 141. Linked List Cycle
  • Hash Table Linked List Two Pointers
• 160. Intersection of Two Linked Lists
  • Hash Table Linked List Two Pointers
• 169. Majority Element
  • Array Hash Table Divide and Conquer
• 190. Reverse Bits
  • Divide and Conquer Bit Manipulation
• 191. Number of 1 Bits
  • Divide and Conquer Bit Manipulation
• 206. Reverse Linked List
  • Linked List Recursion
• 217. Contains Duplicate
  • Array Hash Table Sorting
• 226. Invert Binary Tree
  • Tree Depth-First Search
• 232. Implement Queue using Stacks
  • Stack Design Queue
• 234. Palindrome Linked List
  • Linked List Two Pointers Stack
• 242. Valid Anagram
  • Hash Table String Sorting
• 268. Missing Number
  • Array Hash Table Math
• 278. First Bad Version
  • Binary Search Interactive
• 283. Move Zeroes
  • Array Two Pointers
• 338. Counting Bits
  • Dynamic Programming Bit Manipulation
• 383. Ransom Note
  • Hash Table String Counting
• 409. Longest Palindrome
  • Hash Table String Greedy
• 543. Diameter of Binary Tree
  • Tree Depth-First Search Binary Tree
• 572. Subtree of Another Tree
  • Tree Depth-First Search String Matching
• 704. Binary Search
  • Array Binary Search
• 705. Design HashSet
  • Array Hash Table
• 733. Flood Fill
  • Array Depth-First Search
• 844. Backspace String Compare
  • Two Pointers String Stack
• 876. Middle of the Linked List
  • Linked List Two Pointers
• 977. Squares of a Sorted Array
  • Array Two Pointers Sorting
• 1071. Greatest Common Divisor of Strings
  • Math String
• 1290. Convert Binary Number in a Linked List to Integer
  • Linked List Math

Medium

• 3. Longest Substring Without Repeating Characters
  • Hash Table String Sliding Window
• 22. Generate Parentheses
  • String Dynamic Programming Backtracking
• 39. Combination Sum
  • Array Backtracking
• 46. Permutations
  • Array Backtracking
• 48. Rotate Image
  • Array Math Matrix
• 49. Group Anagrams
  • Array Hash Table String
• 54. Spiral Matrix
  • Array Matrix Simulation
• 55. Jump Game
  • Array Dynamic Programming Greedy
• 62. Unique Paths
  • Math Dynamic Programming Combinatorics
• 75. Sort Colors
  • Array Two Pointers Sorting
• 98. Validate Binary Search Tree
  • Tree Depth-First Search
• 102. Binary Tree Level Order Traversal
  • Tree Breadth-First Search Binary Tree
• 103. Binary Tree Zigzag Level Order Traversal
  • Tree Breadth-First Search Binary Tree
• 105. Construct Binary Tree from Preorder and Inorder Traversal
  • Array Hash Table Divide and Conquer
• 133. Clone Graph
  • Hash Table Depth-First Search
• 134. Gas Station
  • Array Greedy
• 148. Sort List
  • Linked List Two Pointers
• 150. Evaluate Reverse Polish Notation
  • Array Math Stack
• 152. Maximum Product Subarray
  • Array Dynamic Programming
• 155. Min Stack
  • Stack Design
• 189. Rotate Array
  • Array Math Two Pointers
• 198. House Robber
  • Array Dynamic Programming
• 199. Binary Tree Right Side View
  • Tree Depth-First Search
• 200. Number of Islands
  • Array Depth-First Search
• 230. Kth Smallest Element in a BST
  • Tree Depth-First Search
• 235. Lowest Common Ancestor of a Binary Search Tree
  • Tree Depth-First Search
• 236. Lowest Common Ancestor of a Binary Tree
  • Tree Depth-First Search Binary Tree
• 238. Product of Array Except Self
  • Array Prefix Sum
• 287. Find the Duplicate Number
  • Array Two Pointers Binary Search
• 322. Coin Change
  • Depth-First Search Graph Eulerian Circuit
• 328. Odd Even Linked List
  • Linked List
• 438. Find All Anagrams in a String
  • Hash Table String Sliding Window
• 528. Random Pick with Weight
  • Math Binary Search Prefix Sum
• 973. K Closest Points to Origin
  • Array Math Divide and Conquer