LeetCode题解目录

源码地址：https://github.com/liuchuo/LeetCode-practice

LeetCode上Tag为深度优先搜索(Depth-frist
Search)的题目整理

LeetCode199.
Binary Tree Right Side View

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103. Binary Tree Zigzag Level Order Traversal

LeetCode上Tag为广度优先搜索BFS(Breadth-first
Search)的题目整理

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3. Longest Substring Without Repeating Characters

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122. Best Time to Buy and Sell Stock II

LeetCode上Tag为贪心算法(Greedy)的题目整理

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55. Jump Game

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134. Gas Station

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330. Patching Array

LeetCode上Tag为动态规划(Dynamic
Programming)的题目整理

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91. Decode Ways

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279. Perfect Squares

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304. Range Sum Query 2D – Immutable

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300. Longest Increasing Subsequence

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213. House Robber II

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96. Unique Binary Search Trees

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53. Maximum Subarray

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64. Minimum Path Sum

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63. Unique Paths II

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347. Top K Frequent Elements

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144. Binary Tree Preorder Traversal

LeetCode319.
Bulb Switcher

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8. String to Integer (atoi)

LeetCode165.
Compare Version Numbers

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168. Excel Sheet Column Title

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155. Min Stack

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34. Search for a Range

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35. Search Insert Position

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278. First Bad Version

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7. Reverse Integer

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125. Valid Palindrome

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6. ZigZag Conversion

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303. Range Sum Query – Immutable

LeetCode343.
Integer Break

LeetCode345.
Reverse Vowels of a String

LeetCode344.
Reverse String

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237. Delete Node in a Linked List

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28. Implement strStr()

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67. Add Binary

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234. Palindrome Linked List

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206. Reverse Linked List

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225. Implement Stack using Queues

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42. Power of Four

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231. Power of Two

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14. Longest Common Prefix

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203. Remove Linked List Elements

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203. Remove Linked List Elements

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38. Count and Say

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290. Word Pattern

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58. Length of Last Word

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19. Remove Nth Node From End of List

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190. Reverse Bits

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20. Valid Parentheses

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299. Bulls and Cows

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326. Power of Three

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205. Isomorphic Strings

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223. Rectangle Area

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219. Contains Duplicate II

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88. Merge Sorted Array

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160. Intersection of Two Linked Lists

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36. Valid Sudoku

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112. Path Sum

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107. Binary Tree Level Order Traversal II

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102. Binary Tree Level Order Traversal

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101. Symmetric Tree

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9. Palindrome Number

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62. Unique Paths

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119. Pascal’s Triangle II

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189. Rotate Array

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204. Count Primes

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238. Product of Array Except Self

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121. Best Time to Buy and Sell Stock

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122. Best Time to Buy and Sell Stock II

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1. Two Sum

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2. Add Two Numbers

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338. Counting Bits

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142. Linked List Cycle II

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80. Remove Duplicates from Sorted Array II

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48. Rotate Image

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75. Sort Colors

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162. Find Peak Element

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268. Missing Number

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137. Single Number II

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141. Linked List Cycle

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260. Single Number III

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136. Single Number

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172. Factorial Trailing Zeroes

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118. Pascal’s Triangle

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104. Maximum Depth of Binary Tree

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111. Minimum Depth of Binary Tree

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232. Implement Queue using Stacks

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110. Balanced Binary Tree

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198. House Robber

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235. Lowest Common Ancestor of a Binary Search Tree

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13. Roman to Integer

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26. Remove Duplicates from Sorted Array

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66. Plus One

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24. Swap Nodes in Pairs

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21. Merge Two Sorted Lists

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27. Remove Element

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202. Happy Number

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263. Ugly Number

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70. Climbing Stairs

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83. Remove Duplicates from Sorted List

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191. Number of 1 Bits

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217. Contains Duplicate

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169. Majority Element

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171. Excel Sheet Column Number

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242. Valid Anagram

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100. Same Tree

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226. Invert Binary Tree

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292. Nim Game