LeetCode Daily Challenge

一个记录 leetcode 每日一题的仓库

汇总（按题目序号排列）

• 1. Two Sum(easy)
• 2. Add Two Numbers(medium)
• 3. Longest Substring Without Repeating Characters(medium)
• 5. Longest Palindromic Substring(medium)
• 6. Zigzag Conversion(medium)
• 9. Palindrome Number(easy)
• 11. Container With Most Water(medium)
• 17. Letter Combinations of a Phone Number(medium)
• 20. Valid Parentheses(easy)
• 29. Divide Two Integers(medium)
• 31. Next Permutation(medium)
• 32. Longest Valid Parentheses(hard)
• 46. Permutations(medium)
• 47. Permutations II(medium)
• 51. N-Queens(hard)
• 52. N-Queens II(hard)
• 59. Spiral Matrix II(medium)
• 61. Rotate List(medium)
• 63. Unique Paths II(medium)
• 74. Search a 2D Matrix(medium)
• 81. Search in Rotated Sorted Array II(medium)
• 88. Merge Sorted Array(easy)
• 99. Recover Binary Search Tree(medium)
• 117. Populating Next Right Pointers in Each Node II(medium)
• 119. Pascal's Triangle II(easy)
• 120. Triangle(medium)
• 128. Longest Consecutive Sequence(medium)
• 135. Candy(hard)
• 138. Copy List with Random Pointer(medium)
• 152. Maximum Product Subarray(medium)
• 160. Intersection of Two Linked Lists(easy)
• 165. Compare Version Numbers(medium)
• 166. Fraction to Recurring Decimal(medium)
• 167. Two Sum II - Input Array Is Sorted(medium)
• 173. Binary Search Tree Iterator(medium)
• 191. Number of 1 Bits(easy)
• 215. Kth Largest Element in an Array(medium)
• 216. Combination Sum III(medium)
• 225. Implement Stack using Queues(easy)
• 230. Kth Smallest Element in a BST(medium)
• 268. Missing Number(easy)
• 284. Peeking Iterator(medium)
• 287. Find the Duplicate Number(medium)
• 289. Game of Life(medium)
• 304. Range Sum Query 2D - Immutable(medium)
• 318. Maximum Product of Word Lengths(medium)
• 322. Coin Change(medium)
• 329. Longest Increasing Path in a Matrix(hard)
• 330. Patching Array(hard)
• 341. Flatten Nested List Iterator(medium)
• 344. Reverse String(easy)
• 347. Top K Frequent Elements(medium)
• 354. Russian Doll Envelopes(hard)
• 376. Wiggle Subsequence(medium)
• 399. Evaluate Division(medium)
• 406. Queue Reconstruction by Height(medium)
• 410. Split Array Largest Sum(hard)
• 456. 132 Pattern(medium)
• 462. Minimum Moves to Equal Array Elements II(medium)
• 474. Ones and Zeroes(medium)
• 535. Encode and Decode TinyURL(medium)
• 538. Convert BST to Greater Tree(medium)
• 581. Shortest Unsorted Continuous Subarray(medium)
• 583. Delete Operation for Two Strings(medium)
• 611. Valid Triangle Number(medium)
• 633. Sum of Square Numbers(medium)
• 647. Palindromic Substrings(medium)
• 665. Non-decreasing Array(medium)
• 669. Trim a Binary Search Tree(medium)
• 680. Valid Palindrome II(easy)
• 682. Baseball Game(easy)
• 700. Search in a Binary Search Tree(easy)
• 703. Kth Largest Element in a Stream(easy)
• 704. Binary Search(easy)
• 705. Design HashSet(easy)
• 706. Design HashMap(easy)
• 726. Number of Atoms(hard)
• 769. Max Chunks To Make Sorted(medium)
• 785. Is Graph Bipartite?(medium)
• 812. Largest Triangle Area(easy)
• 820. Short Encoding of Words(medium)
• 826. Most Profit Assigning Work(medium)
• 844. Backspace String Compare(easy)
• 867. Transpose Matrix(easy)
• 897. Increasing Order Search Tree(easy)
• 905. Sort Array By Parity(easy)
• 912. Sort an Array(medium)
• 923. 3Sum With Multiplicity(medium)
• 966. Vowel Spellchecker(medium)
• 968. Binary Tree Cameras(hard)
• 976. Largest Perimeter Triangle(easy)
• 1029. Two City Scheduling(medium)
• 1039. Minimum Score Triangulation of Polygon(medium)
• 1046. Last Stone Weight(easy)
• 1048. Longest String Chain(medium)
• 1052. Grumpy Bookstore Owner(medium)
• 1091. Shortest Path in Binary Matrix(medium)
• 1110. Delete Nodes And Return Forest(medium)
• 1190. Reverse Substrings Between Each Pair of Parentheses(medium)
• 1192. Critical Connections in a Network(hard)
• 1202. Smallest String With Swaps(medium)
• 1209. Remove All Adjacent Duplicates in String II(medium)
• 1260. Shift 2D Grid(easy)
• 1268. Search Suggestions System(medium)
• 1302. Deepest Leaves Sum(medium)
• 1304. Find N Unique Integers Sum up to Zero(easy)
• 1317. Convert Integer to the Sum of Two No-Zero Integers(easy)
• 1332. Remove Palindromic Subsequences(easy)
• 1337. The K Weakest Rows in a Matrix(easy)
• 1342. Number of Steps to Reduce a Number to Zero(easy)
• 1352. Product of the Last K Numbers(medium)
• 1379. Find a Corresponding Node of a Binary Tree in a Clone of That Tree(medium)
• 1380. Lucky Numbers in a Matrix(easy)
• 1396. Design Underground System(medium)
• 1423. Maximum Points You Can Obtain from Cards(medium)
• 1461. Check If a String Contains All Binary Codes of Size K(medium)
• 1465. Maximum Area of a Piece of Cake After Horizontal and Vertical Cuts(medium)
• 1475. Final Prices With a Special Discount in a Shop(easy)
• 1482. Minimum Number of Days to Make m Bouquets(medium)
• 1518. Water Bottles(easy)
• 1530. Number of Good Leaf Nodes Pairs(medium)
• 1552. Magnetic Force Between Two Balls(medium)
• 1584. Min Cost to Connect All Points(medium)
• 1598. Crawler Log Folder(easy)
• 1631. Path With Minimum Effort(medium)
• 1636. Sort Array by Increasing Frequency(easy)
• 1641. Count Sorted Vowel Strings(medium)
• 1642. Furthest Building You Can Reach(medium)
• 1653. Minimum Deletions to Make String Balanced(medium)
• 1658. Minimum Operations to Reduce X to Zero(medium)
• 1679. Max Number of K-Sum Pairs(medium)
• 1689. Partitioning Into Minimum Number Of Deci-Binary Numbers(medium)
• 1695. Maximum Erasure Value(medium)
• 1710. Maximum Units on a Truck(easy)
• 1717. Maximum Score From Removing Substrings(medium)
• 1721. Swapping Nodes in a Linked List(medium)
• 1733. Minimum Number of People to Teach(medium)
• 1912. Design Movie Rental System(hard)
• 1935. Maximum Number of Words You Can Type(easy)
• 2096. Step-By-Step Directions From a Binary Tree Node to Another(medium)
• 2191. Sort the Jumbled Numbers(medium)
• 2196. Create Binary Tree From Descriptions(medium)
• 2197. Replace Non-Coprime Numbers in Array(hard)
• 2221. Find Triangular Sum of an Array(medium)
• 2327. Number of People Aware of a Secret(medium)
• 2353. Design a Food Rating System(medium)
• 2415. Reverse Odd Levels of Binary Tree(medium)
• 2418. Sort the People(easy)
• 2471. Minimum Number of Operations to Sort a Binary Tree by Level(medium)
• 2749. Minimum Operations to Make the Integer Zero(medium)
• 2751. Robot Collisions(hard)
• 2785. Sort Vowels in a String(medium)
• 2872. Maximum Number of K-Divisible Components(hard)
• 3005. Count Elements With Maximum Frequency(easy)
• 3025. Find the Number of Ways to Place People I(medium)
• 3027. Find the Number of Ways to Place People II(hard)
• 3227. Vowels Game in a String(medium)
• 3264. Final Array State After K Multiplication Operations I(easy)
• 3408. Design Task Manager(medium)
• 3484. Design Spreadsheet(medium)
• 3495. Minimum Operations to Make Array Elements Zero(hard)
• 3508. Implement Router(medium)
• 3516. Find Closest Person(easy)
• 3541. Find Most Frequent Vowel and Consonant(easy)