算法解题报告

主要记录我每天做的题目，包括leetcode， 剑指offer等在线编程平台，以前做过的等时间够再一起分享。

Leetcode Challenge (beat 100% yeah!)

Hot 100

• 5. Longest Palindromic Substring
• 11. Container With Most Water
• 15. 3Sum
• 17. Letter Combinations of a Phone Number
• 19. Remove Nth Node From End of List
• 7. Reverse Integer
• 8. String to Integer (atoi)
• 14. Longest Common Prefix
• 20. Valid Parentheses
• 21. Merge Two Sorted Lists
• 22. Generate Parentheses
• 26. Remove Duplicates from Sorted Array
• 28. Find the Index of the First Occurrence in a String
• 33. Search in Rotated Sorted Array
• 34. Find First and Last Position of Element in Sorted Array
• 剑指 Offer 29. 顺时针打印矩阵
• 102. 二叉树的层序遍历

30Day

• Two Sum
• Subsets II
• 12. Integer to Roman
• Path Sum II
• N-ary Tree Level Order Traversal
• 15. 3Sum
• 18. 4Sum
• Stone Game
• Add Strings
• 55. Jump Game
• Flip String to Monotone Increasing
• Range Addition II
• Find Minimum in Rotated Sorted Array
• Array of Doubled Pairs
• Two Sum IV - Input is a BST
• Complex Number Multiplication
• Sum of Square Numbers
• Verify Preorder Serialization of a Binary Tree
• Array Nesting
• Reverse Linked List
• Intersection of Two Arrays II
• Max Consecutive Ones
• 442. Find All Duplicates in an Array
• 208. Implement Trie (Prefix Tree)
• 543. Diameter of Binary Tree
• 374. Guess Number Higher or Lower
• 1008. Construct Binary Search Tree from Preorder Traversal
• 279. Perfect Squares
• 993. Cousins in Binary Tree
• 43. Multiply Strings
• 496. Next Greater Element I
• 380. Insert Delete GetRandom O(1)
• 451. Sort Characters By Frequency
• 222. Count Complete Tree Nodes
• 226. Invert Binary Tree
• 994. Rotting Oranges
• 130. Surrounded Regions
• 129. Sum Root to Leaf Numbers
• 96. Unique Binary Search Trees
• 228. Summary Ranges
• 122. Best Time to Buy and Sell Stock II
• 1413. Minimum Value to Get Positive Step by Step Sum
• 203. Remove Linked List Elements
• 739. Daily Temperatures
• 368. Largest Divisible Subset
• 668. Kth Smallest Number in Multiplication Table
• 62. Unique Paths
• 448. Find All Numbers Disappeared in an Array
• 461. Hamming Distance
• 450. Delete Node in a BST
• 952. Largest Component Size by Common Factor
• 986. Interval List Intersections
• 53. Maximum Subarray
• 35. Search Insert Position
• 797. All Paths From Source to Target
• 1290. Convert Binary Number in a Linked List to Integer
• 721. Accounts Merge
• 85. Maximal Rectangle
• 198. House Robber
• 328. Odd Even Linked List
• 152. Maximum Product Subarray
• 337. House Robber III
• 1217. Minimum Cost to Move Chips to The Same Position
• 143. Reorder List
• 210. Course Schedule II
• 56. Merge Intervals
• 476. Number Complement
• 876. Middle of the Linked List
• 116. Populating Next Right Pointers in Each Node
• 1015. Smallest Integer Divisible by K
• 312. Burst Balloons
• 1010. Pairs of Songs With Total Durations Divisible by 60
• 1094. Car Pooling
• 605. Can Place Flowers
• 134. Gas Station
• 211. Design Add and Search Words Data Structure
• 567. Permutation in String
• 81. Search in Rotated Sorted Array II
• 104. Maximum Depth of Binary Tree
• 136. Single Number
• 39. Combination Sum
• 402. Remove K Digits
• 171. Excel Sheet Column Number
• 413. Arithmetic Slices
• 71. Simplify Path
• 946. Validate Stack Sequences
• 659. Split Array into Consecutive Subsequences
• 342. Power of Four
• 234. Palindrome Linked List
• 326. Power of Three
• 383. Ransom Note
• 215. Kth Largest Element in an Array
• 869. Reordered Power of 2
• 108. Convert Sorted Array to Binary Search Tree
• 417. Pacific Atlantic Water Flow
• 1448. Count Good Nodes in Binary Tree
• 637. Average of Levels in Binary Tree
• 967. Numbers With Same Consecutive Differences
• 1582. Special Positions in a Binary Matrix
• 429. N-ary Tree Level Order Traversal
• 814. Binary Tree Pruning
• 1592. Rearrange Spaces Between Words
• 94. Binary Tree Inorder Traversal
• 1996. The Number of Weak Characters in the Game
• 121. Best Time to Buy and Sell Stock
• 3. Longest Substring Without Repeating Characters
• 237. Delete Node in a Linked List
• 1441. 用栈操作构建数组
• 886. 可能的二分法
• 904. Fruit Into Baskets
• 901. 股票价格跨度
• 645. Set Mismatch
• 1662. Check If Two String Arrays are Equivalent
• 835. Image Overlap
• 49. Group Anagrams
• 766. Toeplitz Matrix
• 433. Minimum Genetic Mutation
• 2131. Longest Palindrome by Concatenating Two Letter Words
• 1323. Maximum 69 Number
• 1544. Make The String Great
• 901. Online Stock Span
• 1047. Remove All Adjacent Duplicates In String
• 26. Remove Duplicates from Sorted Array
• 151. Reverse Words in a String
• 947. Most Stones Removed with Same Row or Column
• 222. Count Complete Tree Nodes
• 374. Guess Number Higher or Lower
• 792. 匹配子序列的单词数
• 263. Ugly Number
• 1926. Nearest Exit from Entrance in Maze
• 279. Perfect Squares
• 1742. 盒子中小球的最大数量
• 670. Maximum Swap
• 907. Sum of Subarray Minimums
• 1752. 检查数组是否经排序和轮转得到
• 2225. Find Players With Zero or One Losses
• 380. Insert Delete GetRandom O(1)
• 1073. Adding Two Negabinary Numbers
• 1207. Unique Number of Occurrences
• 1704. Determine if String Halves Are Alike
• 1657. Determine if Two Strings Are Close
• 451. Sort Characters By Frequency
• 2256. Minimum Average Difference
• 876. Middle of the Linked List
• 328. Odd Even Linked List
• 938. Range Sum of BST
• 872. Leaf-Similar Trees
• 46. Permutations
• 1026. Maximum Difference Between Node and Ancestor
• 1339. Maximum Product of Splitted Binary Tree
• 124. Binary Tree Maximum Path Sum
• 931. Minimum Falling Path Sum
• 198. House Robber
• 232. Implement Queue using Stacks
• 150. Evaluate Reverse Polish Notation
• 739. Daily Temperatures
• 55. Jump Game
• 2279. Maximum Bags With Full Capacity of Rocks
• 520. Detect Capital
• 944. Delete Columns to Make Sorted
• 2244. Minimum Rounds to Complete All Tasks
• 452. Minimum Number of Arrows to Burst Balloons
• 1833. Maximum Ice Cream Bars
• 144. Binary Tree Preorder Traversal
• 100. Same Tree
• 1443. Minimum Time to Collect All Apples in a Tree
• 1493. Longest Subarray of 1's After Deleting One Element
• 209. Minimum Size Subarray Sum
• 2024. Maximize the Confusion of an Exam
• 863. All Nodes Distance K in Binary Tree
• 802. Find Eventual Safe States
• 1218. Longest Arithmetic Subsequence of Given Difference
• 435. Non-overlapping Intervals
• 735. Asteroid Collision
• 852. Peak Index in a Mountain Array
• 486. Predict the Winner
• 712. Minimum ASCII Delete Sum for Two Strings
• 77. Combinations
• 92. Reverse Linked List II
• 2433. Find The Original Array of Prefix Xor
• 2265. Count Nodes Equal to Average of Subtree
• 191. Number of 1 Bits
• 1160. Find Words That Can Be Formed by Characters
• 2264. Largest 3-Same-Digit Number in String
• 1688. Count of Matches in Tournament
• 1716. Calculate Money in Leetcode Bank
• 1903. Largest Odd Number in String
• 1464. Maximum Product of Two Elements in an Array
• 1582. Special Positions in a Binary Matrix
• 2482. Difference Between Ones and Zeros in Row and Column
• 1436. Destination City
• 242. Valid Anagram
• 1913. Maximum Product Difference Between Two Pairs
• 661. Image Smoother
• 2706. Buy Two Chocolates
• 1637. Widest Vertical Area Between Two Points Containing No Points
• 1422. Maximum Score After Splitting a String
• 1496. Path Crossing
• 1758. Minimum Changes To Make Alternating Binary String
• 91. Decode Ways
• 1155. Number of Dice Rolls With Target Sum
• 1578. Minimum Time to Make Rope Colorful
• 1531. String Compression II
• 1335. Minimum Difficulty of a Job Schedule
• 1897. Redistribute Characters to Make All Strings Equal
• 1624. Largest Substring Between Two Equal Characters
• 2610. Convert an Array Into a 2D Array With Conditions
• 2125. Number of Laser Beams in a Bank
• 2870. Minimum Number of Operations to Make Array Empty
• 300. Longest Increasing Subsequence
• 938. Range Sum of BST
• 872. Leaf-Similar Trees
• 2385. Amount of Time for Binary Tree to Be Infected
• 1026. Maximum Difference Between Node and Ancestor
• 2225. Find Players With Zero or One Losses
• 380. Insert Delete GetRandom O(1)
• 1207. Unique Number of Occurrences
• 70. Climbing Stairs
• 931. Minimum Falling Path Sum
• 645. Set Mismatch
• 1239. Maximum Length of a Concatenated String with Unique Characters
• 1457. Pseudo-Palindromic Paths in a Binary Tree
• 1143. Longest Common Subsequence
• 576. Out of Boundary Paths
• 232. Implement Queue using Stacks
• 2966. Divide Array Into Arrays With Max Difference
• 1291. Sequential Digits
• 1043. Partition Array for Maximum Sum
• 76. Minimum Window Substring
• 387. First Unique Character in a String
• 49. Group Anagrams
• 451. Sort Characters By Frequency
• 231. Power of Two
• 268. Missing Number
• 201. Bitwise AND of Numbers Range
• 513. Find Bottom Left Tree Value
• 1609. Even Odd Tree
• 2864. Maximum Odd Binary Number
• 948. Bag of Tokens
• 1750. Minimum Length of String After Deleting Similar Ends
• 3005. Count Elements With Maximum Frequency
• 2540. Minimum Common Value
• 791. Custom Sort String
• 2485. Find the Pivot Integer
• 930. Binary Subarrays With Sum
• 238. Product of Array Except Self
• 452. Minimum Number of Arrows to Burst Balloons
• 1669. Merge In Between Linked Lists
• 206. Reverse Linked List
• 1700. Number of Students Unable to Eat Lunch
• 2073. Time Needed to Buy Tickets
• 988. Smallest String Starting From Leaf
• 463. Island Perimeter
• 1137. N-th Tribonacci Number
• 2370. Longest Ideal Subsequence
• 834. Sum of Distances in Tree
• 2997. Minimum Number of Operations to Make Array XOR Equal to K
• 1915. Number of Wonderful Substrings
• 2816. Double a Number Represented as a Linked List
• 506. Relative Ranks
• 3075. Maximize Happiness of Selected Children
• 786. K-th Smallest Prime Fraction
• 857. Minimum Cost to Hire K Workers
• 2542. Maximum Subsequence Score
• 861. Score After Flipping Matrix
• 1219. Path with Maximum Gold
• 2331. Evaluate Boolean Binary Tree
• 1325. Delete Leaves With a Given Value
• 1863. Sum of All Subset XOR Totals
• 131. Palindrome Partitioning
• 2597. The Number of Beautiful Subsets
• 1255. Maximum Score Words Formed by Letters
• 1442. Count Triplets That Can Form Two Arrays of Equal XOR
• 260. Single Number III
• 2486. Append Characters to String to Make Subsequence
• 409. Longest Palindrome
• 1002. Find Common Characters
• 846. Hand of Straights
• 648. Replace Words
• 1122. Relative Sort Array
• 75. Sort Colors
• 633. Sum of Square Numbers
• 826. Most Profit Assigning Work
• 1509. Minimum Difference Between Largest and Smallest Value in Three Moves
• 2181. Merge Nodes in Between Zeros
• 3243. Shortest Distance After Road Addition Queries I
• https://leetcode.com/problems/course-schedule/description/
• 2109. Adding Spaces to a String
• 2825. Make String a Subsequence Using Cyclic Increments
• 2337. Move Pieces to Obtain a String
• 1792. Maximum Average Pass Ratio
• 1475. Final Prices With a Special Discount in a Shop
• 2415. Reverse Odd Levels of Binary Tree
• 2471. Minimum Number of Operations to Sort a Binary Tree by Level

使用swift解题

• Two Sum
• Reverse Integer
• Valid Parentheses
• Palindrome Number
• Merge Two Sorted Lists
• Single Number
• Find All Numbers Disappeared in an Array
• Maximum Subarray
• 461. Hamming Distance
• 617. Merge Two Binary Trees
• 538. Convert BST to Greater Tree
• 543. Diameter of Binary Tree
• 101. Symmetric Tree
• 572. Subtree of Another Tree
• 198. House Robber
• 4. Median of Two Sorted Arrays
• 338. Counting Bits
• 938. Range Sum of BST
• 771. Jewels and Stones
• 406. Queue Reconstruction by Height
• 647. Palindromic Substrings
• 347. Top K Frequent Elements
• 33. Search in Rotated Sorted Array
• 79. Word Search
• 212. Word Search II
• 208. Implement Trie (Prefix Tree)
• 739.Daily Temperatures
• 121. Best Time to Buy and Sell Stock
• 437. Path Sum III
• 155. Min Stack
• 234. Palindrome Linked List
• 581. Shortest Unsorted Continuous Subarray
• 78. Subsets
• 994. Rotting Oranges
• 1103. Distribute Candies to People
• 48. Rotate Image
• 215. Kth Largest Element in an Array
• 102. Binary Tree Level Order Traversal
• 983. Minimum Cost For Tickets
• https://leetcode.com/problems/coin-change/
• 337. House Robber III
• 1013. Partition Array Into Three Parts With Equal Sum
• 1071. Greatest Common Divisor of Strings
• 169. Majority Element
• 229. Majority Element II
• 300. 最长上升子序列
• 695. 岛屿的最大面积
• 394. Decode String
• 1160. Find Words That Can Be Formed by Characters
• 621. Task Scheduler
• 836. Rectangle Overlap
• 114. Flatten Binary Tree to Linked List
• 105. Construct Binary Tree from Preorder and Inorder Traversal
• 309. Best Time to Buy and Sell Stock with Cooldown
• 876. Middle of the Linked List
• 17. Letter Combinations of a Phone Number
• 1025. Divisor Game
• 200. Number of Islands
• 279. Perfect Squares
• 560. Subarray Sum Equals K
• 1162. As Far from Land as Possible
• 236. Lowest Common Ancestor of a Binary Tree
• 235. Lowest Common Ancestor of a Binary Search Tree
• 416. Partition Equal Subset Sum
• 698. Partition to K Equal Sum Subsets
• 240. Search a 2D Matrix II
• 74. Search a 2D Matrix
• 148. Sort List
• 139. Word Break
• 56. Merge Intervals
• 141. Linked List Cycle
• 142. Linked List Cycle II
• 85. Maximal Rectangle
• 221. Maximal Square
• 146. LRU Cache
• 5. Longest Palindromic Substring
• 525. Contiguous Array
• 98. Validate Binary Search Tree
• 128. Longest Consecutive Sequence
• 88. Merge Sorted Array
• 110. Balanced Binary Tree
• 111. Minimum Depth of Binary Tree
• 112. Path Sum
• 118. Pascal's Triangle
• 119. Pascal's Triangle II
• 125. Valid Palindrome
• 145. Binary Tree Postorder Traversal
• 167. Two Sum II - Input array is sorted
• 168. Excel Sheet Column Title
• 203. Remove Linked List Elements
• 219. Contains Duplicate II
• 849. Maximize Distance to Closest Person
• 560. Subarray Sum Equals K
• 78. Subsets
• 169. Majority Element
• 146. LRU 缓存

30-Day LeetCoding Challenge

Week 4

• Longest Common Subsequence
• Binary Tree Maximum Path Sum
• Ransom Note
• Number Complement
• First Unique Character in a String
• Majority Element
• Cousins in Binary Tree
• Check If It Is a Straight Line
• Valid Perfect Square
• Find the Town Judge
• Flood Fill
• Remove K Digits
• Implement Trie (Prefix Tree)
• Permutation in String
• Kth Smallest Element in a BST
• Sort Characters By Frequency
• First Bad Version
• 973. K Closest Points to Origin
• Lowest Common Ancestor of a Binary Tree
• Reduce Array Size to The Half
• Kth Smallest Element in a Sorted Matrix
• Maximum Length of Repeated Subarray
• Longest Increasing Subsequence
• Decode Ways II
• Find Median from Data Stream
• Isomorphic Strings
• Partition Array into Disjoint Intervals
• 563. Binary Tree Tilt

面试题(leetcode)

• 面试题57 - II. 和为s的连续正数序列
• 面试题59 - II. 队列的最大值
• 121. 买卖股票的最佳时机
• 面试题 01.06. 字符串压缩
• 409. 最长回文串
• 面试题40. 最小的k个数
• 面试题 17.16. 按摩师
• 892. Surface Area of 3D Shapes
• 999. 车的可用捕获量
• 914. 卡牌分组
• ShortEndingOfWords.swift
• 面试题62. 圆圈中最后剩下的数字
• 912. 排序数组
• 674. Longest Continuous Increasing Subsequence
• 673. Number of Longest Increasing Subsequence
• 55. Jump Game
• Maximum Sum Circular Subarray

leetcode day 30

• Happy Number
• Move Zeroes
• Best Time to Buy and Sell Stock II
• Group Anagrams
• Counting Elements
• Middle of the Linked List
• Backspace String Compare
• Last Stone Weight
• Contiguous Array
• Perform String Shifts
• Product of Array Except Self
• Valid Parenthesis String
• Minimum Path Sum
• 312. Burst Balloons
• Construct Binary Search Tree from Preorder Traversal
• Leftmost Column with at Least a One
• Bitwise AND of Numbers Range
• Jewels and Stones
• Single Element in a Sorted Array
• Odd Even Linked List
• Find All Anagrams in a String
• Find K Closest Elements
• Reshape the Matrix
• Find Peak Element

leetcode已解题列表：

• 1.Two Sum
• 2.Add Two Numbers
• 3.Longest Substring Without Repeating Characters
• 4.Median of Two Sorted Arrays
• 7.Reverse Integer
• 8.String to Integer (atoi)
• 9.Palindrome Number
• 11.Container With Most Water
• 14.Longest Common Prefix
• 15.3Sum
• 16.3Sum Closest
• 19.Remove Nth Node From End of List
• 20.Valid Parentheses
• 21.Merge Two Sorted Lists
• 22.Generate Parentheses
• 24.Swap Nodes in Pairs
• 26.Remove Duplicates from Sorted Array
• 27.Remove Element
• 28.Implement strStr()
• 29.Divide Two Integers
• 43.Multiply Strings
• 46.Permutations
• 49.Group Anagrams
• 50.Pow(x, n)
• 54.Spiral Matrix
• 58.Length of Last Word
• 60.Permutation Sequence
• 61.Rotate List
• 62.Unique Paths
• 63.Unique Paths II
• 64.Minimum Path Sum
• 66.Plus One
• 67.Add Binary
• 69.Sqrt(x)
• 71.Simplify Path
• 74.Search a 2D Matrix
• 75.Sort Colors
• 96.Unique Binary Search Trees
• 108.Convert Sorted Array to Binary Search Tree
• 141.Linked List Cycle
• 152.Maximum Product Subarray
• 153.Find Minimum in Rotated Sorted Array
• 154.Find Minimum in Rotated Sorted Array II
• 202.Happy Number
• 230.Kth Smallest Element in a BST
• 231.Power of Two
• 326.Power of Three
• 160. Intersection of Two Linked Lists

编程之美

• 24点

剑指Offer

• FindInPartiallySortedMatrix(二维数组的查找)
• [剑指 Offer 04. 二维数组中的查找](https://leetcode.cn/problems/er-wei-shu-zu-zhong-de-cha-zhao-lcof/)
• 剑指 Offer 03. 数组中重复的数字
• 剑指 Offer 05. 替换空格
• 剑指 Offer 06. 从尾到头打印链表
• 剑指 Offer 07. 重建二叉树
• 剑指 Offer 09. 用两个栈实现队列
• 225. Implement Stack using Queues

力扣

• 面试题 08.11. 硬币
• 322. 零钱兑换
• 98. 验证二叉搜索树