Thanks to visit codestin.com
Credit goes to prepverse.github.io

For updates follow @AkashSingh3031 on LinkedIn and GitHub
Sponsorship is now available!

LeetVerse

Index

Initializing search

Home
LeetCode Articles
LeetCode Solution
About

LeetVerse

LeetCode Solutions in C++, Java, and Python.

Let's Code ! Back to PrepVerse

LeetVerse

Home
Home
LeetCode Articles
LeetCode Articles
- Articles
  Articles
  - 2023
- Labels
  Labels
  - Array
  - Hash Table
LeetCode Solution
LeetCode Solution
- Preface
- Problems
  Problems
  - Solution
    Solution
    
    1. Two Sum
    
    2. Add Two Numbers
    
    3. Longest Substring Without Repeating Characters
    
    4. Median of Two Sorted Arrays
    
    5. Longest Palindromic Substring
    
    6. Zigzag Conversion
    
    7. Reverse Integer
    
    8. String to Integer (atoi)
    
    9. Palindrome Number
    
    10. Regular Expression Matching
    
    11. Container With Most Water
    
    12. Integer to Roman
    
    13. Roman to Integer
    
    14. Longest Common Prefix
    
    15. 3Sum
    
    16. 3Sum Closest
    
    17. Letter Combinations of a Phone Number
    
    18. 4Sum
    
    19. Remove Nth Node From End of List
    
    20. Valid Parentheses
    
    21. Merge Two Sorted Lists
    
    22. Generate Parentheses
    
    23. Merge k Sorted Lists
    
    24. Swap Nodes in Pairs
    
    25. Reverse Nodes in k-Group
    
    26. Remove Duplicates from Sorted Array
    
    27. Remove Element
    
    28. Find the Index of the First Occurrence in a String
    
    29. Divide Two Integers
    
    30. Substring with Concatenation of All Words
    
    31. Next Permutation
    
    32. Longest Valid Parentheses
    
    33. Search in Rotated Sorted Array
    
    34. Find First and Last Position of Element in Sorted Array
    
    35. Search Insert Position
    
    36. Valid Sudoku
    
    37. Sudoku Solver
    
    38. Count and Say
    
    39. Combination Sum
    
    40. Combination Sum II
    
    41. First Missing Positive
    
    42. Trapping Rain Water
    
    43. Multiply Strings
    
    44. Wildcard Matching
    
    45. Jump Game II
    
    46. Permutations
    
    47. Permutations II
    
    48. Rotate Image
    
    49. Group Anagrams
    
    50. Pow(x, n)
    
    51. N-Queens
    
    52. N-Queens II
    
    53. Maximum Subarray
    
    54. Spiral Matrix
    
    55. Jump Game
    
    56. Merge Intervals
    
    57. Insert Interval
    
    58. Length of Last Word
    
    59. Spiral Matrix II
    
    60. Permutation Sequence
    
    61. Rotate List
    
    62. Unique Paths
    
    63. Unique Paths II
    
    64. Minimum Path Sum
    
    65. Valid Number
    
    66. Plus One
    
    67. Add Binary
    
    68. Text Justification
    
    69. Sqrt(x)
    
    70. Climbing Stairs
    
    71. Simplify Path
    
    72. Edit Distance
    
    73. Set Matrix Zeroes
    
    74. Search a 2D Matrix
    
    75. Sort Colors
    
    76. Minimum Window Substring
    
    77. Combinations
    
    78. Subsets
    
    79. Word Search
    
    80. Remove Duplicates from Sorted Array II
    
    81. Search in Rotated Sorted Array II
    
    82. Remove Duplicates from Sorted List II
    
    83. Remove Duplicates from Sorted List
    
    84. Largest Rectangle in Histogram
    
    85. Maximal Rectangle
    
    86. Partition List
    
    87. Scramble String
    
    88. Merge Sorted Array
    
    89. Gray Code
    
    90. Subsets II
    
    91. Decode Ways
    
    92. Reverse Linked List II
    
    93. Restore IP Addresses
    
    94. Binary Tree Inorder Traversal
    
    95. Unique Binary Search Trees II
    
    96. Unique Binary Search Trees
    
    97. Interleaving String
    
    98. Validate Binary Search Tree
    
    99. Recover Binary Search Tree
    
    100. Same Tree
    
    101. Symmetric Tree
    
    102. Binary Tree Level Order Traversal
    
    103. Binary Tree Zigzag Level Order Traversal
    
    104. Maximum Depth of Binary Tree
    
    105. Construct Binary Tree from Preorder and Inorder Traversal
    
    106. Construct Binary Tree from Inorder and Postorder Traversal
    
    107. Binary Tree Level Order Traversal II
    
    108. Convert Sorted Array to Binary Search Tree
    
    109. Convert Sorted List to Binary Search Tree
    
    110. Balanced Binary Tree
    
    111. Minimum Depth of Binary Tree
    
    112. Path Sum
    
    113. Path Sum II
    
    114. Flatten Binary Tree to Linked List
    
    115. Distinct Subsequences
    
    116. Populating Next Right Pointers in Each Node
    
    117. Populating Next Right Pointers in Each Node II
    
    118. Pascal's Triangle
    
    119. Pascal's Triangle II
    
    120. Triangle
    
    121. Best Time to Buy and Sell Stock
    
    122. Best Time to Buy and Sell Stock II
    
    123. Best Time to Buy and Sell Stock III
    
    124. Binary Tree Maximum Path Sum
    
    125. Valid Palindrome
    
    126. Word Ladder II
    
    127. Word Ladder
    
    128. Longest Consecutive Sequence
    
    129. Sum Root to Leaf Numbers
    
    130. Surrounded Regions
    
    131. Palindrome Partitioning
    
    132. Palindrome Partitioning II
    
    133. Clone Graph
    
    134. Gas Station
    
    135. Candy
    
    136. Single Number
    
    137. Single Number II
    
    138. Copy List with Random Pointer
    
    139. Word Break
    
    140. Word Break II
    
    141. Linked List Cycle
    
    142. Linked List Cycle II
    
    143. Reorder List
    
    144. Binary Tree Preorder Traversal
    
    145. Binary Tree Postorder Traversal
    
    146. LRU Cache
    
    147. Insertion Sort List
    
    148. Sort List
    
    149. Max Points on a Line
    
    150. Evaluate Reverse Polish Notation
    
    151. Reverse Words in a String
    
    152. Maximum Product Subarray
    
    153. Find Minimum in Rotated Sorted Array
    
    154. Find Minimum in Rotated Sorted Array II
    
    155. Min Stack
    
    156. Binary Tree Upside Down
    
    157. Read N Characters Given Read4
    
    158. Read N Characters Given read4 II - Call Multiple Times
    
    159. Longest Substring with At Most Two Distinct Characters
    
    160. Intersection of Two Linked Lists
    
    161. One Edit Distance
    
    162. Find Peak Element
    
    163. Missing Ranges
    
    164. Maximum Gap
    
    165. Compare Version Numbers
    
    166. Fraction to Recurring Decimal
    
    167. Two Sum II - Input Array Is Sorted
    
    168. Excel Sheet Column Title
    
    169. Majority Element
    
    170. Two Sum III - Data structure design
    
    171. Excel Sheet Column Number
    
    172. Factorial Trailing Zeroes
    
    173. Binary Search Tree Iterator
    
    174. Dungeon Game
    
    175. Combine Two Tables
    
    176. Second Highest Salary
    
    177. Nth Highest Salary
    
    178. Rank Scores
    
    179. Largest Number
    
    180. Consecutive Numbers
    
    181. Employees Earning More Than Their Managers
    
    182. Duplicate Emails
    
    183. Customers Who Never Order
    
    184. Department Highest Salary
    
    185. Department Top Three Salaries
    
    186. Reverse Words in a String II
    
    187. Repeated DNA Sequences
    
    188. Best Time to Buy and Sell Stock IV
    
    189. Rotate Array
    
    190. Reverse Bits
    
    191. Number of 1 Bits
    
    192. Word Frequency
    
    193. Valid Phone Numbers
    
    194. Transpose File
    
    195. Tenth Line
    
    196. Delete Duplicate Emails
    
    197. Rising Temperature
    
    198. House Robber
    
    199. Binary Tree Right Side View
    
    200. Number of Islands
    
    201. Bitwise AND of Numbers Range
    
    202. Happy Number
    
    203. Remove Linked List Elements
    
    204. Count Primes
    
    205. Isomorphic Strings
    
    206. Reverse Linked List
    
    207. Course Schedule
    
    208. Implement Trie (Prefix Tree)
    
    209. Minimum Size Subarray Sum
    
    210. Course Schedule II
    
    211. Design Add and Search Words Data Structure
    
    212. Word Search II
    
    213. House Robber II
    
    214. Shortest Palindrome
    
    215. Kth Largest Element in an Array
    
    216. Combination Sum III
    
    217. Contains Duplicate
    
    218. The Skyline Problem
    
    219. Contains Duplicate II
    
    220. Contains Duplicate III
    
    221. Maximal Square
    
    222. Count Complete Tree Nodes
    
    223. Rectangle Area
    
    224. Basic Calculator
    
    225. Implement Stack using Queues
    
    226. Invert Binary Tree
    
    227. Basic Calculator II
    
    228. Summary Ranges
    
    229. Majority Element II
    
    230. Kth Smallest Element in a BST
    
    231. Power of Two
    
    232. Implement Queue using Stacks
    
    233. Number of Digit One
    
    234. Palindrome Linked List
    
    235. Lowest Common Ancestor of a Binary Search Tree
    
    236. Lowest Common Ancestor of a Binary Tree
    
    237. Delete Node in a Linked List
    
    238. Product of Array Except Self
    
    239. Sliding Window Maximum
    
    240. Search a 2D Matrix II
    
    241. Different Ways to Add Parentheses
    
    242. Valid Anagram
    
    243. Shortest Word Distance
    
    244. Shortest Word Distance II
    
    245. Shortest Word Distance III
    
    246. Strobogrammatic Number
    
    247. Strobogrammatic Number II
    
    248. Strobogrammatic Number III
    
    249. Group Shifted Strings
    
    250. Count Univalue Subtrees
    
    251. Flatten 2D Vector
    
    252. Meeting Rooms
    
    253. Meeting Rooms II
    
    254. Factor Combinations
    
    255. Verify Preorder Sequence in Binary Search Tree
    
    256. Paint House
    
    257. Binary Tree Paths
    
    258. Add Digits
    
    259. 3Sum Smaller
    
    260. Single Number III
    
    261. Graph Valid Tree
    
    262. Trips and Users
    
    263. Ugly Number
    
    264. Ugly Number II
    
    265. Paint House II
    
    266. Palindrome Permutation
    
    267. Palindrome Permutation II
    
    268. Missing Number
    
    269. Alien Dictionary
    
    270. Closest Binary Search Tree Value
    
    271. Encode and Decode Strings
    
    272. Closest Binary Search Tree Value II
    
    273. Integer to English Words
    
    274. H-Index
    
    275. H-Index II
    
    276. Paint Fence
    
    277. Find the Celebrity
    
    278. First Bad Version
    
    279. Perfect Squares
    
    280. Wiggle Sort
    
    281. Zigzag Iterator
    
    282. Expression Add Operators
    
    283. Move Zeroes
    
    284. Peeking Iterator
    
    285. Inorder Successor in BST
    
    286. Walls and Gates
    
    287. Find the Duplicate Number
    
    288. Unique Word Abbreviation
    
    289. Game of Life
    
    290. Word Pattern
    
    291. Word Pattern II
    
    292. Nim Game
    
    293. Flip Game
    
    294. Flip Game II
    
    295. Find Median from Data Stream
    
    296. Best Meeting Point
    
    297. Serialize and Deserialize Binary Tree
    
    298. Binary Tree Longest Consecutive Sequence
    
    299. Bulls and Cows
    
    300. Longest Increasing Subsequence
    
    301. Remove Invalid Parentheses
    
    302. Smallest Rectangle Enclosing Black Pixels
    
    303. Range Sum Query - Immutable
    
    304. Range Sum Query 2D - Immutable
    
    305. Number of Islands II
    
    306. Additive Number
    
    307. Range Sum Query - Mutable
    
    308. Range Sum Query 2D - Mutable
    
    309. Best Time to Buy and Sell Stock with Cooldown
    
    310. Minimum Height Trees
    
    311. Sparse Matrix Multiplication
    
    312. Burst Balloons
    
    313. Super Ugly Number
    
    314. Binary Tree Vertical Order Traversal
    
    315. Count of Smaller Numbers After Self
    
    316. Remove Duplicate Letters
    
    317. Shortest Distance from All Buildings
    
    318. Maximum Product of Word Lengths
    
    319. Bulb Switcher
    
    320. Generalized Abbreviation
    
    321. Create Maximum Number
    
    322. Coin Change
    
    323. Number of Connected Components in an Undirected Graph
    
    324. Wiggle Sort II
    
    325. Maximum Size Subarray Sum Equals k
    
    326. Power of Three
    
    327. Count of Range Sum
    
    328. Odd Even Linked List
    
    329. Longest Increasing Path in a Matrix
    
    330. Patching Array
    
    331. Verify Preorder Serialization of a Binary Tree
    
    332. Reconstruct Itinerary
    
    333. Largest BST Subtree
    
    334. Increasing Triplet Subsequence
    
    335. Self Crossing
    
    336. Palindrome Pairs
    
    337. House Robber III
    
    338. Counting Bits
    
    339. Nested List Weight Sum
    
    340. Longest Substring with At Most K Distinct Characters
    
    341. Flatten Nested List Iterator
    
    342. Power of Four
    
    343. Integer Break
    
    344. Reverse String
    
    345. Reverse Vowels of a String
    
    346. Moving Average from Data Stream
    
    347. Top K Frequent Elements
    
    348. Design Tic-Tac-Toe
    
    349. Intersection of Two Arrays
    
    350. Intersection of Two Arrays II
    
    351. Android Unlock Patterns
    
    352. Data Stream as Disjoint Intervals
    
    353. Design Snake Game
    
    354. Russian Doll Envelopes
    
    355. Design Twitter
    
    356. Line Reflection
    
    357. Count Numbers with Unique Digits
    
    358. Rearrange String k Distance Apart
    
    359. Logger Rate Limiter
    
    360. Sort Transformed Array
    
    361. Bomb Enemy
    
    362. Design Hit Counter
    
    363. Max Sum of Rectangle No Larger Than K
    
    364. Nested List Weight Sum II
    
    365. Water and Jug Problem
    
    366. Find Leaves of Binary Tree
    
    367. Valid Perfect Square
    
    368. Largest Divisible Subset
    
    369. Plus One Linked List
    
    370. Range Addition
    
    371. Sum of Two Integers
    
    372. Super Pow
    
    373. Find K Pairs with Smallest Sums
    
    374. Guess Number Higher or Lower
    
    375. Guess Number Higher or Lower II
    
    376. Wiggle Subsequence
    
    377. Combination Sum IV
    
    378. Kth Smallest Element in a Sorted Matrix
    
    379. Design Phone Directory
    
    380. Insert Delete GetRandom O(1)
    
    381. Insert Delete GetRandom O(1) - Duplicates allowed
    
    382. Linked List Random Node
    
    383. Ransom Note
    
    384. Shuffle an Array
    
    385. Mini Parser
    
    386. Lexicographical Numbers
    
    387. First Unique Character in a String
    
    388. Longest Absolute File Path
    
    389. Find the Difference
    
    390. Elimination Game
    
    391. Perfect Rectangle
    
    392. Is Subsequence
    
    393. UTF-8 Validation
    
    394. Decode String
    
    395. Longest Substring with At Least K Repeating Characters
    
    396. Rotate Function
    
    397. Integer Replacement
    
    398. Random Pick Index
    
    399. Evaluate Division
    
    400. Nth Digit
    
    401. Binary Watch
    
    402. Remove K Digits
    
    403. Frog Jump
    
    404. Sum of Left Leaves
    
    405. Convert a Number to Hexadecimal
    
    406. Queue Reconstruction by Height
    
    407. Trapping Rain Water II
    
    408. Valid Word Abbreviation
    
    409. Longest Palindrome
    
    410. Split Array Largest Sum
    
    411. Minimum Unique Word Abbreviation
    
    412. Fizz Buzz
    
    413. Arithmetic Slices
    
    414. Third Maximum Number
    
    415. Add Strings
    
    416. Partition Equal Subset Sum
    
    417. Pacific Atlantic Water Flow
    
    418. Sentence Screen Fitting
    
    419. Battleships in a Board
    
    420. Strong Password Checker
    
    421. Maximum XOR of Two Numbers in an Array
    
    422. Valid Word Square
    
    423. Reconstruct Original Digits from English
    
    424. Longest Repeating Character Replacement
    
    425. Word Squares
    
    426. Convert Binary Search Tree to Sorted Doubly Linked List
    
    427. Construct Quad Tree
    
    428. Serialize and Deserialize N-ary Tree
    
    429. N-ary Tree Level Order Traversal
    
    430. Flatten a Multilevel Doubly Linked List
    
    431. Encode N-ary Tree to Binary Tree
    
    432. All O`one Data Structure
    
    433. Minimum Genetic Mutation
    
    434. Number of Segments in a String
    
    435. Non-overlapping Intervals
    
    436. Find Right Interval
    
    437. Path Sum III
    
    438. Find All Anagrams in a String
    
    439. Ternary Expression Parser
    
    440. K-th Smallest in Lexicographical Order
    
    441. Arranging Coins
    
    442. Find All Duplicates in an Array
    
    443. String Compression
    
    444. Sequence Reconstruction
    
    445. Add Two Numbers II
    
    446. Arithmetic Slices II - Subsequence
    
    447. Number of Boomerangs
    
    448. Find All Numbers Disappeared in an Array
    
    449. Serialize and Deserialize BST
    
    450. Delete Node in a BST
    
    451. Sort Characters By Frequency
    
    452. Minimum Number of Arrows to Burst Balloons
    
    453. Minimum Moves to Equal Array Elements
    
    454. 4Sum II
    
    455. Assign Cookies
    
    456. 132 Pattern
    
    457. Circular Array Loop
    
    458. Poor Pigs
    
    459. Repeated Substring Pattern
    
    460. LFU Cache
    
    461. Hamming Distance
    
    462. Minimum Moves to Equal Array Elements II
    
    463. Island Perimeter
    
    464. Can I Win
    
    465. Optimal Account Balancing
    
    466. Count The Repetitions
    
    467. Unique Substrings in Wraparound String
    
    468. Validate IP Address
    
    469. Convex Polygon
    
    470. Implement Rand10() Using Rand7()
    
    471. Encode String with Shortest Length
    
    472. Concatenated Words
    
    473. Matchsticks to Square
    
    474. Ones and Zeroes
    
    475. Heaters
    
    476. Number Complement
    
    477. Total Hamming Distance
    
    478. Generate Random Point in a Circle
    
    479. Largest Palindrome Product
    
    480. Sliding Window Median
    
    481. Magical String
    
    482. License Key Formatting
    
    483. Smallest Good Base
    
    484. Find Permutation
    
    485. Max Consecutive Ones
    
    486. Predict the Winner
    
    487. Max Consecutive Ones II
    
    488. Zuma Game
    
    489. Robot Room Cleaner
    
    490. The Maze
    
    491. Non-decreasing Subsequences
    
    492. Construct the Rectangle
    
    493. Reverse Pairs
    
    494. Target Sum
    
    495. Teemo Attacking
    
    496. Next Greater Element I
    
    497. Random Point in Non-overlapping Rectangles
    
    498. Diagonal Traverse
    
    499. The Maze III
    
    500. Keyboard Row
    
    501. Find Mode in Binary Search Tree
    
    502. IPO
    
    503. Next Greater Element II
    
    504. Base 7
    
    505. The Maze II
    
    506. Relative Ranks
    
    507. Perfect Number
    
    508. Most Frequent Subtree Sum
    
    509. Fibonacci Number
    
    510. Inorder Successor in BST II
    
    511. Game Play Analysis I
    
    512. Game Play Analysis II
    
    513. Find Bottom Left Tree Value
    
    514. Freedom Trail
    
    515. Find Largest Value in Each Tree Row
    
    516. Longest Palindromic Subsequence
    
    517. Super Washing Machines
    
    518. Coin Change II
    
    519. Random Flip Matrix
    
    520. Detect Capital
    
    521. Longest Uncommon Subsequence I
    
    522. Longest Uncommon Subsequence II
    
    523. Continuous Subarray Sum
    
    524. Longest Word in Dictionary through Deleting
    
    525. Contiguous Array
    
    526. Beautiful Arrangement
    
    527. Word Abbreviation
    
    528. Random Pick with Weight
    
    529. Minesweeper
    
    530. Minimum Absolute Difference in BST
    
    531. Lonely Pixel I
    
    532. K-diff Pairs in an Array
    
    533. Lonely Pixel II
    
    534. Game Play Analysis III
    
    535. Encode and Decode TinyURL
    
    536. Construct Binary Tree from String
    
    537. Complex Number Multiplication
    
    538. Convert BST to Greater Tree
    
    539. Minimum Time Difference
    
    540. Single Element in a Sorted Array
    
    541. Reverse String II
    
    542. 01 Matrix
    
    543. Diameter of Binary Tree
    
    544. Output Contest Matches
    
    545. Boundary of Binary Tree
    
    546. Remove Boxes
    
    547. Number of Provinces
    
    548. Split Array with Equal Sum
    
    549. Binary Tree Longest Consecutive Sequence II
    
    550. Game Play Analysis IV
    
    551. Student Attendance Record I
    
    552. Student Attendance Record II
    
    553. Optimal Division
    
    554. Brick Wall
    
    555. Split Concatenated Strings
    
    556. Next Greater Element III
    
    557. Reverse Words in a String III
    
    558. Logical OR of Two Binary Grids Represented as Quad-Trees
    
    559. Maximum Depth of N-ary Tree
    
    560. Subarray Sum Equals K
    
    561. Array Partition
    
    562. Longest Line of Consecutive One in Matrix
    
    563. Binary Tree Tilt
    
    564. Find the Closest Palindrome
    
    565. Array Nesting
    
    566. Reshape the Matrix
    
    567. Permutation in String
    
    568. Maximum Vacation Days
    
    569. Median Employee Salary
    
    570. Managers with at Least 5 Direct Reports
    
    571. Find Median Given Frequency of Numbers
    
    572. Subtree of Another Tree
    
    573. Squirrel Simulation
    
    574. Winning Candidate
    
    575. Distribute Candies
    
    576. Out of Boundary Paths
    
    577. Employee Bonus
    
    578. Get Highest Answer Rate Question
    
    579. Find Cumulative Salary of an Employee
    
    580. Count Student Number in Departments
    
    581. Shortest Unsorted Continuous Subarray
    
    582. Kill Process
    
    583. Delete Operation for Two Strings
    
    584. Find Customer Referee
    
    585. Investments in 2016
    
    586. Customer Placing the Largest Number of Orders
    
    587. Erect the Fence
    
    588. Design In-Memory File System
    
    589. N-ary Tree Preorder Traversal
    
    590. N-ary Tree Postorder Traversal
    
    591. Tag Validator
    
    592. Fraction Addition and Subtraction
    
    593. Valid Square
    
    594. Longest Harmonious Subsequence
    
    595. Big Countries
    
    596. Classes More Than 5 Students
    
    597. Friend Requests I: Overall Acceptance Rate
    
    598. Range Addition II
    
    599. Minimum Index Sum of Two Lists
    
    600. Non-negative Integers without Consecutive Ones
    
    601. Human Traffic of Stadium
    
    602. Friend Requests II: Who Has the Most Friends
    
    603. Consecutive Available Seats
    
    604. Design Compressed String Iterator
    
    605. Can Place Flowers
    
    606. Construct String from Binary Tree
    
    607. Sales Person
    
    608. Tree Node
    
    609. Find Duplicate File in System
    
    610. Triangle Judgement
    
    611. Valid Triangle Number
    
    612. Shortest Distance in a Plane
    
    613. Shortest Distance in a Line
    
    614. Second Degree Follower
    
    615. Average Salary: Departments VS Company
    
    616. Add Bold Tag in String
    
    617. Merge Two Binary Trees
    
    618. Students Report By Geography
    
    619. Biggest Single Number
    
    620. Not Boring Movies
    
    621. Task Scheduler
    
    622. Design Circular Queue
    
    623. Add One Row to Tree
    
    624. Maximum Distance in Arrays
    
    625. Minimum Factorization
    
    626. Exchange Seats
    
    627. Swap Salary
    
    628. Maximum Product of Three Numbers
    
    629. K Inverse Pairs Array
    
    630. Course Schedule III
    
    631. Design Excel Sum Formula
    
    632. Smallest Range Covering Elements from K Lists
    
    633. Sum of Square Numbers
    
    634. Find the Derangement of An Array
    
    635. Design Log Storage System
    
    636. Exclusive Time of Functions
    
    637. Average of Levels in Binary Tree
    
    638. Shopping Offers
    
    639. Decode Ways II
    
    640. Solve the Equation
    
    641. Design Circular Deque
    
    642. Design Search Autocomplete System
    
    643. Maximum Average Subarray I
    
    644. Maximum Average Subarray II
    
    645. Set Mismatch
    
    646. Maximum Length of Pair Chain
    
    647. Palindromic Substrings
    
    648. Replace Words
    
    649. Dota2 Senate
    
    650. 2 Keys Keyboard
    
    651. 4 Keys Keyboard
    
    652. Find Duplicate Subtrees
    
    653. Two Sum IV - Input is a BST
    
    654. Maximum Binary Tree
    
    655. Print Binary Tree
    
    656. Coin Path
    
    657. Robot Return to Origin
    
    658. Find K Closest Elements
    
    659. Split Array into Consecutive Subsequences
    
    660. Remove 9
    
    661. Image Smoother
    
    662. Maximum Width of Binary Tree
    
    663. Equal Tree Partition
    
    664. Strange Printer
    
    665. Non-decreasing Array
    
    666. Path Sum IV
    
    667. Beautiful Arrangement II
    
    668. Kth Smallest Number in Multiplication Table
    
    669. Trim a Binary Search Tree
    
    670. Maximum Swap
    
    671. Second Minimum Node In a Binary Tree
    
    672. Bulb Switcher II
    
    673. Number of Longest Increasing Subsequence
    
    674. Longest Continuous Increasing Subsequence
    
    675. Cut Off Trees for Golf Event
    
    676. Implement Magic Dictionary
    
    677. Map Sum Pairs
    
    678. Valid Parenthesis String
    
    679. 24 Game
    
    680. Valid Palindrome II
    
    681. Next Closest Time
    
    682. Baseball Game
    
    683. K Empty Slots
    
    684. Redundant Connection
    
    685. Redundant Connection II
    
    686. Repeated String Match
    
    687. Longest Univalue Path
    
    688. Knight Probability in Chessboard
    
    689. Maximum Sum of 3 Non-Overlapping Subarrays
    
    690. Employee Importance
    
    691. Stickers to Spell Word
    
    692. Top K Frequent Words
    
    693. Binary Number with Alternating Bits
    
    694. Number of Distinct Islands
    
    695. Max Area of Island
    
    696. Count Binary Substrings
    
    697. Degree of an Array
    
    698. Partition to K Equal Sum Subsets
    
    699. Falling Squares
    
    700. Search in a Binary Search Tree
    
    701. Insert into a Binary Search Tree
    
    702. Search in a Sorted Array of Unknown Size
    
    703. Kth Largest Element in a Stream
    
    704. Binary Search
    
    705. Design HashSet
    
    706. Design HashMap
    
    707. Design Linked List
    
    708. Insert into a Sorted Circular Linked List
    
    709. To Lower Case
    
    710. Random Pick with Blacklist
    
    711. Number of Distinct Islands II
    
    712. Minimum ASCII Delete Sum for Two Strings
    
    713. Subarray Product Less Than K
    
    714. Best Time to Buy and Sell Stock with Transaction Fee
    
    715. Range Module
    
    716. Max Stack
    
    717. 1-bit and 2-bit Characters
    
    718. Maximum Length of Repeated Subarray
    
    719. Find K-th Smallest Pair Distance
    
    720. Longest Word in Dictionary
    
    721. Accounts Merge
    
    722. Remove Comments
    
    723. Candy Crush
    
    724. Find Pivot Index
    
    725. Split Linked List in Parts
    
    726. Number of Atoms
    
    727. Minimum Window Subsequence
    
    728. Self Dividing Numbers
    
    729. My Calendar I
    
    730. Count Different Palindromic Subsequences
    
    731. My Calendar II
    
    732. My Calendar III
    
    733. Flood Fill
    
    734. Sentence Similarity
    
    735. Asteroid Collision
    
    736. Parse Lisp Expression
    
    737. Sentence Similarity II
    
    738. Monotone Increasing Digits
    
    739. Daily Temperatures
    
    740. Delete and Earn
    
    741. Cherry Pickup
    
    742. Closest Leaf in a Binary Tree
    
    743. Network Delay Time
    
    744. Find Smallest Letter Greater Than Target
    
    745. Prefix and Suffix Search
    
    746. Min Cost Climbing Stairs
    
    747. Largest Number At Least Twice of Others
    
    748. Shortest Completing Word
    
    749. Contain Virus
    
    750. Number Of Corner Rectangles
    
    751. IP to CIDR
    
    752. Open the Lock
    
    753. Cracking the Safe
    
    754. Reach a Number
    
    755. Pour Water
    
    756. Pyramid Transition Matrix
    
    757. Set Intersection Size At Least Two
    
    758. Bold Words in String
    
    759. Employee Free Time
    
    760. Find Anagram Mappings
    
    761. Special Binary String
    
    762. Prime Number of Set Bits in Binary Representation
    
    763. Partition Labels
    
    764. Largest Plus Sign
    
    765. Couples Holding Hands
    
    766. Toeplitz Matrix
    
    767. Reorganize String
    
    768. Max Chunks To Make Sorted II
    
    769. Max Chunks To Make Sorted
    
    770. Basic Calculator IV
    
    771. Jewels and Stones
    
    772. Basic Calculator III
    
    773. Sliding Puzzle
    
    774. Minimize Max Distance to Gas Station
    
    775. Global and Local Inversions
    
    776. Split BST
    
    777. Swap Adjacent in LR String
    
    778. Swim in Rising Water
    
    779. K-th Symbol in Grammar
    
    780. Reaching Points
    
    781. Rabbits in Forest
    
    782. Transform to Chessboard
    
    783. Minimum Distance Between BST Nodes
    
    784. Letter Case Permutation
    
    785. Is Graph Bipartite?
    
    786. K-th Smallest Prime Fraction
    
    787. Cheapest Flights Within K Stops
    
    788. Rotated Digits
    
    789. Escape The Ghosts
    
    790. Domino and Tromino Tiling
    
    791. Custom Sort String
    
    792. Number of Matching Subsequences
    
    793. Preimage Size of Factorial Zeroes Function
    
    794. Valid Tic-Tac-Toe State
    
    795. Number of Subarrays with Bounded Maximum
    
    796. Rotate String
    
    797. All Paths From Source to Target
    
    798. Smallest Rotation with Highest Score
    
    799. Champagne Tower
    
    800. Similar RGB Color
    
    801. Minimum Swaps To Make Sequences Increasing
    
    802. Find Eventual Safe States
    
    803. Bricks Falling When Hit
    
    804. Unique Morse Code Words
    
    805. Split Array With Same Average
    
    806. Number of Lines To Write String
    
    807. Max Increase to Keep City Skyline
    
    808. Soup Servings
    
    809. Expressive Words
    
    810. Chalkboard XOR Game
    
    811. Subdomain Visit Count
    
    812. Largest Triangle Area
    
    813. Largest Sum of Averages
    
    814. Binary Tree Pruning
    
    815. Bus Routes
    
    816. Ambiguous Coordinates
    
    817. Linked List Components
    
    818. Race Car
    
    819. Most Common Word
    
    820. Short Encoding of Words
    
    821. Shortest Distance to a Character
    
    822. Card Flipping Game
    
    823. Binary Trees With Factors
    
    824. Goat Latin
    
    825. Friends Of Appropriate Ages
    
    826. Most Profit Assigning Work
    
    827. Making A Large Island
    
    828. Count Unique Characters of All Substrings of a Given String
    
    829. Consecutive Numbers Sum
    
    830. Positions of Large Groups
    
    831. Masking Personal Information
    
    832. Flipping an Image
    
    833. Find And Replace in String
    
    834. Sum of Distances in Tree
    
    835. Image Overlap
    
    836. Rectangle Overlap
    
    837. New 21 Game
    
    838. Push Dominoes
    
    839. Similar String Groups
    
    840. Magic Squares In Grid
    
    841. Keys and Rooms
    
    842. Split Array into Fibonacci Sequence
    
    843. Guess the Word
    
    844. Backspace String Compare
    
    845. Longest Mountain in Array
    
    846. Hand of Straights
    
    847. Shortest Path Visiting All Nodes
    
    848. Shifting Letters
    
    849. Maximize Distance to Closest Person
    
    850. Rectangle Area II
    
    851. Loud and Rich
    
    852. Peak Index in a Mountain Array
    
    853. Car Fleet
    
    854. K-Similar Strings
    
    855. Exam Room
    
    856. Score of Parentheses
    
    857. Minimum Cost to Hire K Workers
    
    858. Mirror Reflection
    
    859. Buddy Strings
    
    860. Lemonade Change
    
    861. Score After Flipping Matrix
    
    862. Shortest Subarray with Sum at Least K
    
    863. All Nodes Distance K in Binary Tree
    
    864. Shortest Path to Get All Keys
    
    865. Smallest Subtree with all the Deepest Nodes
    
    866. Prime Palindrome
    
    867. Transpose Matrix
    
    868. Binary Gap
    
    869. Reordered Power of 2
    
    870. Advantage Shuffle
    
    871. Minimum Number of Refueling Stops
    
    872. Leaf-Similar Trees
    
    873. Length of Longest Fibonacci Subsequence
    
    874. Walking Robot Simulation
    
    875. Koko Eating Bananas
    
    876. Middle of the Linked List
    
    877. Stone Game
    
    878. Nth Magical Number
    
    879. Profitable Schemes
    
    880. Decoded String at Index
    
    881. Boats to Save People
    
    882. Reachable Nodes In Subdivided Graph
    
    883. Projection Area of 3D Shapes
    
    884. Uncommon Words from Two Sentences
    
    885. Spiral Matrix III
    
    886. Possible Bipartition
    
    887. Super Egg Drop
    
    888. Fair Candy Swap
    
    889. Construct Binary Tree from Preorder and Postorder Traversal
    
    890. Find and Replace Pattern
    
    891. Sum of Subsequence Widths
    
    892. Surface Area of 3D Shapes
    
    893. Groups of Special-Equivalent Strings
    
    894. All Possible Full Binary Trees
    
    895. Maximum Frequency Stack
    
    896. Monotonic Array
    
    897. Increasing Order Search Tree
    
    898. Bitwise ORs of Subarrays
    
    899. Orderly Queue
    
    900. RLE Iterator
    
    901. Online Stock Span
    
    902. Numbers At Most N Given Digit Set
    
    903. Valid Permutations for DI Sequence
    
    904. Fruit Into Baskets
    
    905. Sort Array By Parity
    
    906. Super Palindromes
    
    907. Sum of Subarray Minimums
    
    908. Smallest Range I
    
    909. Snakes and Ladders
    
    910. Smallest Range II
    
    911. Online Election
    
    912. Sort an Array
    
    913. Cat and Mouse
    
    914. X of a Kind in a Deck of Cards
    
    915. Partition Array into Disjoint Intervals
    
    916. Word Subsets
    
    917. Reverse Only Letters
    
    918. Maximum Sum Circular Subarray
    
    919. Complete Binary Tree Inserter
    
    920. Number of Music Playlists
    
    921. Minimum Add to Make Parentheses Valid
    
    922. Sort Array By Parity II
    
    923. 3Sum With Multiplicity
    
    924. Minimize Malware Spread
    
    925. Long Pressed Name
    
    926. Flip String to Monotone Increasing
    
    927. Three Equal Parts
    
    928. Minimize Malware Spread II
    
    929. Unique Email Addresses
    
    930. Binary Subarrays With Sum
    
    931. Minimum Falling Path Sum
    
    932. Beautiful Array
    
    933. Number of Recent Calls
    
    934. Shortest Bridge
    
    935. Knight Dialer
    
    936. Stamping The Sequence
    
    937. Reorder Data in Log Files
    
    938. Range Sum of BST
    
    939. Minimum Area Rectangle
    
    940. Distinct Subsequences II
    
    941. Valid Mountain Array
    
    942. DI String Match
    
    943. Find the Shortest Superstring
    
    944. Delete Columns to Make Sorted
    
    945. Minimum Increment to Make Array Unique
    
    946. Validate Stack Sequences
    
    947. Most Stones Removed with Same Row or Column
    
    948. Bag of Tokens
    
    949. Largest Time for Given Digits
    
    950. Reveal Cards In Increasing Order
    
    951. Flip Equivalent Binary Trees
    
    952. Largest Component Size by Common Factor
    
    953. Verifying an Alien Dictionary
    
    954. Array of Doubled Pairs
    
    955. Delete Columns to Make Sorted II
    
    956. Tallest Billboard
    
    957. Prison Cells After N Days
    
    958. Check Completeness of a Binary Tree
    
    959. Regions Cut By Slashes
    
    960. Delete Columns to Make Sorted III
    
    961. N-Repeated Element in Size 2N Array
    
    962. Maximum Width Ramp
    
    963. Minimum Area Rectangle II
    
    964. Least Operators to Express Number
    
    965. Univalued Binary Tree
    
    966. Vowel Spellchecker
    
    967. Numbers With Same Consecutive Differences
    
    968. Binary Tree Cameras
    
    969. Pancake Sorting
    
    970. Powerful Integers
    
    971. Flip Binary Tree To Match Preorder Traversal
    
    972. Equal Rational Numbers
    
    973. K Closest Points to Origin
    
    974. Subarray Sums Divisible by K
    
    975. Odd Even Jump
    
    976. Largest Perimeter Triangle
    
    977. Squares of a Sorted Array
    
    978. Longest Turbulent Subarray
    
    979. Distribute Coins in Binary Tree
    
    980. Unique Paths III
    
    981. Time Based Key-Value Store
    
    982. Triples with Bitwise AND Equal To Zero
    
    983. Minimum Cost For Tickets
    
    984. String Without AAA or BBB
    
    985. Sum of Even Numbers After Queries
    
    986. Interval List Intersections
    
    987. Vertical Order Traversal of a Binary Tree
    
    988. Smallest String Starting From Leaf
    
    989. Add to Array-Form of Integer
    
    990. Satisfiability of Equality Equations
    
    991. Broken Calculator
    
    992. Subarrays with K Different Integers
    
    993. Cousins in Binary Tree
    
    994. Rotting Oranges
    
    995. Minimum Number of K Consecutive Bit Flips
    
    996. Number of Squareful Arrays
    
    997. Find the Town Judge
    
    998. Maximum Binary Tree II
    
    999. Available Captures for Rook
    
    1000. Minimum Cost to Merge Stones
    
    1001. Grid Illumination
    
    1002. Find Common Characters
    
    1003. Check If Word Is Valid After Substitutions
    
    1004. Max Consecutive Ones III
    
    1005. Maximize Sum Of Array After K Negations
    
    1006. Clumsy Factorial
    
    1007. Minimum Domino Rotations For Equal Row
    
    1008. Construct Binary Search Tree from Preorder Traversal
    
    1009. Complement of Base 10 Integer
    
    1010. Pairs of Songs With Total Durations Divisible by 60
    
    1011. Capacity To Ship Packages Within D Days
    
    1012. Numbers With Repeated Digits
    
    1013. Partition Array Into Three Parts With Equal Sum
    
    1014. Best Sightseeing Pair
    
    1015. Smallest Integer Divisible by K
    
    1016. Binary String With Substrings Representing 1 To N
    
    1017. Convert to Base -2
    
    1018. Binary Prefix Divisible By 5
    
    1019. Next Greater Node In Linked List
    
    1020. Number of Enclaves
    
    1021. Remove Outermost Parentheses
    
    1022. Sum of Root To Leaf Binary Numbers
    
    1023. Camelcase Matching
    
    1024. Video Stitching
    
    1025. Divisor Game
    
    1026. Maximum Difference Between Node and Ancestor
    
    1027. Longest Arithmetic Subsequence
    
    1028. Recover a Tree From Preorder Traversal
    
    1029. Two City Scheduling
    
    1030. Matrix Cells in Distance Order
    
    1031. Maximum Sum of Two Non-Overlapping Subarrays
    
    1032. Stream of Characters
    
    1033. Moving Stones Until Consecutive
    
    1034. Coloring A Border
    
    1035. Uncrossed Lines
    
    1036. Escape a Large Maze
    
    1037. Valid Boomerang
    
    1038. Binary Search Tree to Greater Sum Tree
    
    1039. Minimum Score Triangulation of Polygon
    
    1040. Moving Stones Until Consecutive II
    
    1041. Robot Bounded In Circle
    
    1042. Flower Planting With No Adjacent
    
    1043. Partition Array for Maximum Sum
    
    1044. Longest Duplicate Substring
    
    1045. Customers Who Bought All Products
    
    1046. Last Stone Weight
    
    1047. Remove All Adjacent Duplicates In String
    
    1048. Longest String Chain
    
    1049. Last Stone Weight II
    
    1050. Actors and Directors Who Cooperated At Least Three Times
    
    1051. Height Checker
    
    1052. Grumpy Bookstore Owner
    
    1053. Previous Permutation With One Swap
    
    1054. Distant Barcodes
    
    1055. Shortest Way to Form String
    
    1056. Confusing Number
    
    1057. Campus Bikes
    
    1058. Minimize Rounding Error to Meet Target
    
    1059. All Paths from Source Lead to Destination
    
    1060. Missing Element in Sorted Array
    
    1061. Lexicographically Smallest Equivalent String
    
    1062. Longest Repeating Substring
    
    1063. Number of Valid Subarrays
    
    1064. Fixed Point
    
    1065. Index Pairs of a String
    
    1066. Campus Bikes II
    
    1067. Digit Count in Range
    
    1068. Product Sales Analysis I
    
    1069. Product Sales Analysis II
    
    1070. Product Sales Analysis III
    
    1071. Greatest Common Divisor of Strings
    
    1072. Flip Columns For Maximum Number of Equal Rows
    
    1073. Adding Two Negabinary Numbers
    
    1074. Number of Submatrices That Sum to Target
    
    1075. Project Employees I
    
    1076. Project Employees II
    
    1077. Project Employees III
    
    1078. Occurrences After Bigram
    
    1079. Letter Tile Possibilities
    
    1080. Insufficient Nodes in Root to Leaf Paths
    
    1081. Smallest Subsequence of Distinct Characters
    
    1082. Sales Analysis I
    
    1083. Sales Analysis II
    
    1084. Sales Analysis III
    
    1085. Sum of Digits in the Minimum Number
    
    1086. High Five
    
    1087. Brace Expansion
    
    1088. Confusing Number II
    
    1089. Duplicate Zeros
    
    1090. Largest Values From Labels
    
    1091. Shortest Path in Binary Matrix
    
    1092. Shortest Common Supersequence
    
    1093. Statistics from a Large Sample
    
    1094. Car Pooling
    
    1095. Find in Mountain Array
    
    1096. Brace Expansion II
    
    1097. Game Play Analysis V
    
    1098. Unpopular Books
    
    1099. Two Sum Less Than K
    
    1100. Find K-Length Substrings With No Repeated Characters
    
    1101. The Earliest Moment When Everyone Become Friends
    
    1102. Path With Maximum Minimum Value
    
    1103. Distribute Candies to People
    
    1104. Path In Zigzag Labelled Binary Tree
    
    1105. Filling Bookcase Shelves
    
    1106. Parsing A Boolean Expression
    
    1107. New Users Daily Count
    
    1108. Defanging an IP Address
    
    1109. Corporate Flight Bookings
    
    1110. Delete Nodes And Return Forest
    
    1111. Maximum Nesting Depth of Two Valid Parentheses Strings
    
    1112. Highest Grade For Each Student
    
    1113. Reported Posts
    
    1114. Print in Order
    
    1115. Print FooBar Alternately
    
    1116. Print Zero Even Odd
    
    1117. Building H2O
    
    1118. Number of Days in a Month
    
    1119. Remove Vowels from a String
    
    1120. Maximum Average Subtree
    
    1121. Divide Array Into Increasing Sequences
    
    1122. Relative Sort Array
    
    1123. Lowest Common Ancestor of Deepest Leaves
    
    1124. Longest Well-Performing Interval
    
    1125. Smallest Sufficient Team
    
    1126. Active Businesses
    
    1127. User Purchase Platform
    
    1128. Number of Equivalent Domino Pairs
    
    1129. Shortest Path with Alternating Colors
    
    1130. Minimum Cost Tree From Leaf Values
    
    1131. Maximum of Absolute Value Expression
    
    1132. Reported Posts II
    
    1133. Largest Unique Number
    
    1134. Armstrong Number
    
    1135. Connecting Cities With Minimum Cost
    
    1136. Parallel Courses
    
    1137. N-th Tribonacci Number
    
    1138. Alphabet Board Path
    
    1139. Largest 1-Bordered Square
    
    1140. Stone Game II
    
    1141. User Activity for the Past 30 Days I
    
    1142. User Activity for the Past 30 Days II
    
    1143. Longest Common Subsequence
    
    1144. Decrease Elements To Make Array Zigzag
    
    1145. Binary Tree Coloring Game
    
    1146. Snapshot Array
    
    1147. Longest Chunked Palindrome Decomposition
    
    1148. Article Views I
    
    1149. Article Views II
    
    1150. Check If a Number Is Majority Element in a Sorted Array
    
    1151. Minimum Swaps to Group All 1's Together
    
    1152. Analyze User Website Visit Pattern
    
    1153. String Transforms Into Another String
    
    1154. Day of the Year
    
    1155. Number of Dice Rolls With Target Sum
    
    1156. Swap For Longest Repeated Character Substring
    
    1157. Online Majority Element In Subarray
    
    1158. Market Analysis I
    
    1159. Market Analysis II
    
    1160. Find Words That Can Be Formed by Characters
    
    1161. Maximum Level Sum of a Binary Tree
    
    1162. As Far from Land as Possible
    
    1163. Last Substring in Lexicographical Order
    
    1164. Product Price at a Given Date
    
    1165. Single-Row Keyboard
    
    1166. Design File System
    
    1167. Minimum Cost to Connect Sticks
    
    1168. Optimize Water Distribution in a Village
    
    1169. Invalid Transactions
    
    1170. Compare Strings by Frequency of the Smallest Character
    
    1171. Remove Zero Sum Consecutive Nodes from Linked List
    
    1172. Dinner Plate Stacks
    
    1173. Immediate Food Delivery I
    
    1174. Immediate Food Delivery II
    
    1175. Prime Arrangements
    
    1176. Diet Plan Performance
    
    1177. Can Make Palindrome from Substring
    
    1178. Number of Valid Words for Each Puzzle
    
    1179. Reformat Department Table
    
    1180. Count Substrings with Only One Distinct Letter
    
    1181. Before and After Puzzle
    
    1182. Shortest Distance to Target Color
    
    1183. Maximum Number of Ones
    
    1184. Distance Between Bus Stops
    
    1185. Day of the Week
    
    1186. Maximum Subarray Sum with One Deletion
    
    1187. Make Array Strictly Increasing
    
    1188. Design Bounded Blocking Queue
    
    1189. Maximum Number of Balloons
    
    1190. Reverse Substrings Between Each Pair of Parentheses
    
    1191. K-Concatenation Maximum Sum
    
    1192. Critical Connections in a Network
    
    1193. Monthly Transactions I
    
    1194. Tournament Winners
    
    1195. Fizz Buzz Multithreaded
    
    1196. How Many Apples Can You Put into the Basket
    
    1197. Minimum Knight Moves
    
    1198. Find Smallest Common Element in All Rows
    
    1199. Minimum Time to Build Blocks
    
    1200. Minimum Absolute Difference
    
    1201. Ugly Number III
    
    1202. Smallest String With Swaps
    
    1203. Sort Items by Groups Respecting Dependencies
    
    1204. Last Person to Fit in the Bus
    
    1205. Monthly Transactions II
    
    1206. Design Skiplist
    
    1207. Unique Number of Occurrences
    
    1208. Get Equal Substrings Within Budget
    
    1209. Remove All Adjacent Duplicates in String II
    
    1210. Minimum Moves to Reach Target with Rotations
    
    1211. Queries Quality and Percentage
    
    1212. Team Scores in Football Tournament
    
    1213. Intersection of Three Sorted Arrays
    
    1214. Two Sum BSTs
    
    1215. Stepping Numbers
    
    1216. Valid Palindrome III
    
    1217. Minimum Cost to Move Chips to The Same Position
    
    1218. Longest Arithmetic Subsequence of Given Difference
    
    1219. Path with Maximum Gold
    
    1220. Count Vowels Permutation
    
    1221. Split a String in Balanced Strings
    
    1222. Queens That Can Attack the King
    
    1223. Dice Roll Simulation
    
    1224. Maximum Equal Frequency
    
    1225. Report Contiguous Dates
    
    1226. The Dining Philosophers
    
    1227. Airplane Seat Assignment Probability
    
    1228. Missing Number In Arithmetic Progression
    
    1229. Meeting Scheduler
    
    1230. Toss Strange Coins
    
    1231. Divide Chocolate
    
    1232. Check If It Is a Straight Line
    
    1233. Remove Sub-Folders from the Filesystem
    
    1234. Replace the Substring for Balanced String
    
    1235. Maximum Profit in Job Scheduling
    
    1236. Web Crawler
    
    1237. Find Positive Integer Solution for a Given Equation
    
    1238. Circular Permutation in Binary Representation
    
    1239. Maximum Length of a Concatenated String with Unique Characters
    
    1240. Tiling a Rectangle with the Fewest Squares
    
    1241. Number of Comments per Post
    
    1242. Web Crawler Multithreaded
    
    1243. Array Transformation
    
    1244. Design A Leaderboard
    
    1245. Tree Diameter
    
    1246. Palindrome Removal
    
    1247. Minimum Swaps to Make Strings Equal
    
    1248. Count Number of Nice Subarrays
    
    1249. Minimum Remove to Make Valid Parentheses
    
    1250. Check If It Is a Good Array
    
    1251. Average Selling Price
    
    1252. Cells with Odd Values in a Matrix
    
    1253. Reconstruct a 2-Row Binary Matrix
    
    1254. Number of Closed Islands
    
    1255. Maximum Score Words Formed by Letters
    
    1256. Encode Number
    
    1257. Smallest Common Region
    
    1258. Synonymous Sentences
    
    1259. Handshakes That Don't Cross
    
    1260. Shift 2D Grid
    
    1261. Find Elements in a Contaminated Binary Tree
    
    1262. Greatest Sum Divisible by Three
    
    1263. Minimum Moves to Move a Box to Their Target Location
    
    1264. Page Recommendations
    
    1265. Print Immutable Linked List in Reverse
    
    1266. Minimum Time Visiting All Points
    
    1267. Count Servers that Communicate
    
    1268. Search Suggestions System
    
    1269. Number of Ways to Stay in the Same Place After Some Steps
    
    1270. All People Report to the Given Manager
    
    1271. Hexspeak
    
    1272. Remove Interval
    
    1273. Delete Tree Nodes
    
    1274. Number of Ships in a Rectangle
    
    1275. Find Winner on a Tic Tac Toe Game
    
    1276. Number of Burgers with No Waste of Ingredients
    
    1277. Count Square Submatrices with All Ones
    
    1278. Palindrome Partitioning III
    
    1279. Traffic Light Controlled Intersection
    
    1280. Students and Examinations
    
    1281. Subtract the Product and Sum of Digits of an Integer
    
    1282. Group the People Given the Group Size They Belong To
    
    1283. Find the Smallest Divisor Given a Threshold
    
    1284. Minimum Number of Flips to Convert Binary Matrix to Zero Matrix
    
    1285. Find the Start and End Number of Continuous Ranges
    
    1286. Iterator for Combination
    
    1287. Element Appearing More Than 25% In Sorted Array
    
    1288. Remove Covered Intervals
    
    1289. Minimum Falling Path Sum II
    
    1290. Convert Binary Number in a Linked List to Integer
    
    1291. Sequential Digits
    
    1292. Maximum Side Length of a Square with Sum Less than or Equal to Threshold
    
    1293. Shortest Path in a Grid with Obstacles Elimination
    
    1294. Weather Type in Each Country
    
    1295. Find Numbers with Even Number of Digits
    
    1296. Divide Array in Sets of K Consecutive Numbers
    
    1297. Maximum Number of Occurrences of a Substring
    
    1298. Maximum Candies You Can Get from Boxes
    
    1299. Replace Elements with Greatest Element on Right Side
    
    1300. Sum of Mutated Array Closest to Target
    
    1301. Number of Paths with Max Score
    
    1302. Deepest Leaves Sum
    
    1303. Find the Team Size
    
    1304. Find N Unique Integers Sum up to Zero
    
    1305. All Elements in Two Binary Search Trees
    
    1306. Jump Game III
    
    1307. Verbal Arithmetic Puzzle
    
    1308. Running Total for Different Genders
    
    1309. Decrypt String from Alphabet to Integer Mapping
    
    1310. XOR Queries of a Subarray
    
    1311. Get Watched Videos by Your Friends
    
    1312. Minimum Insertion Steps to Make a String Palindrome
    
    1313. Decompress Run-Length Encoded List
    
    1314. Matrix Block Sum
    
    1315. Sum of Nodes with Even-Valued Grandparent
    
    1316. Distinct Echo Substrings
    
    1317. Convert Integer to the Sum of Two No-Zero Integers
    
    1318. Minimum Flips to Make a OR b Equal to c
    
    1319. Number of Operations to Make Network Connected
    
    1320. Minimum Distance to Type a Word Using Two Fingers
    
    1321. Restaurant Growth
    
    1322. Ads Performance
    
    1323. Maximum 69 Number
    
    1324. Print Words Vertically
    
    1325. Delete Leaves With a Given Value
    
    1326. Minimum Number of Taps to Open to Water a Garden
    
    1327. List the Products Ordered in a Period
    
    1328. Break a Palindrome
    
    1329. Sort the Matrix Diagonally
    
    1330. Reverse Subarray To Maximize Array Value
    
    1331. Rank Transform of an Array
    
    1332. Remove Palindromic Subsequences
    
    1333. Filter Restaurants by Vegan-Friendly, Price and Distance
    
    1334. Find the City With the Smallest Number of Neighbors at a Threshold Distance
    
    1335. Minimum Difficulty of a Job Schedule
    
    1336. Number of Transactions per Visit
    
    1337. The K Weakest Rows in a Matrix
    
    1338. Reduce Array Size to The Half
    
    1339. Maximum Product of Splitted Binary Tree
    
    1340. Jump Game V
    
    1341. Movie Rating
    
    1342. Number of Steps to Reduce a Number to Zero
    
    1343. Number of Sub-arrays of Size K and Average Greater than or Equal to Threshold
    
    1344. Angle Between Hands of a Clock
    
    1345. Jump Game IV
    
    1346. Check If N and Its Double Exist
    
    1347. Minimum Number of Steps to Make Two Strings Anagram
    
    1348. Tweet Counts Per Frequency
    
    1349. Maximum Students Taking Exam
    
    1350. Students With Invalid Departments
    
    1351. Count Negative Numbers in a Sorted Matrix
    
    1352. Product of the Last K Numbers
    
    1353. Maximum Number of Events That Can Be Attended
    
    1354. Construct Target Array With Multiple Sums
    
    1355. Activity Participants
    
    1356. Sort Integers by The Number of 1 Bits
    
    1357. Apply Discount Every n Orders
    
    1358. Number of Substrings Containing All Three Characters
    
    1359. Count All Valid Pickup and Delivery Options
    
    1360. Number of Days Between Two Dates
    
    1361. Validate Binary Tree Nodes
    
    1362. Closest Divisors
    
    1363. Largest Multiple of Three
    
    1364. Number of Trusted Contacts of a Customer
    
    1365. How Many Numbers Are Smaller Than the Current Number
    
    1366. Rank Teams by Votes
    
    1367. Linked List in Binary Tree
    
    1368. Minimum Cost to Make at Least One Valid Path in a Grid
    
    1369. Get the Second Most Recent Activity
    
    1370. Increasing Decreasing String
    
    1371. Find the Longest Substring Containing Vowels in Even Counts
    
    1372. Longest ZigZag Path in a Binary Tree
    
    1373. Maximum Sum BST in Binary Tree
    
    1374. Generate a String With Characters That Have Odd Counts
    
    1375. Number of Times Binary String Is Prefix-Aligned
    
    1376. Time Needed to Inform All Employees
    
    1377. Frog Position After T Seconds
    
    1378. Replace Employee ID With The Unique Identifier
    
    1379. Find a Corresponding Node of a Binary Tree in a Clone of That Tree
    
    1380. Lucky Numbers in a Matrix
    
    1381. Design a Stack With Increment Operation
    
    1382. Balance a Binary Search Tree
    
    1383. Maximum Performance of a Team
    
    1384. Total Sales Amount by Year
    
    1385. Find the Distance Value Between Two Arrays
    
    1386. Cinema Seat Allocation
    
    1387. Sort Integers by The Power Value
    
    1388. Pizza With 3n Slices
    
    1389. Create Target Array in the Given Order
    
    1390. Four Divisors
    
    1391. Check if There is a Valid Path in a Grid
    
    1392. Longest Happy Prefix
    
    1393. Capital Gain/Loss
    
    1394. Find Lucky Integer in an Array
    
    1395. Count Number of Teams
    
    1396. Design Underground System
    
    1397. Find All Good Strings
    
    1398. Customers Who Bought Products A and B but Not C
    
    1399. Count Largest Group
    
    1400. Construct K Palindrome Strings
    
    1401. Circle and Rectangle Overlapping
    
    1402. Reducing Dishes
    
    1403. Minimum Subsequence in Non-Increasing Order
    
    1404. Number of Steps to Reduce a Number in Binary Representation to One
    
    1405. Longest Happy String
    
    1406. Stone Game III
    
    1407. Top Travellers
    
    1408. String Matching in an Array
    
    1409. Queries on a Permutation With Key
    
    1410. HTML Entity Parser
    
    1411. Number of Ways to Paint N × 3 Grid
    
    1412. Find the Quiet Students in All Exams
    
    1413. Minimum Value to Get Positive Step by Step Sum
    
    1414. Find the Minimum Number of Fibonacci Numbers Whose Sum Is K
    
    1415. The k-th Lexicographical String of All Happy Strings of Length n
    
    1416. Restore The Array
    
    1417. Reformat The String
    
    1418. Display Table of Food Orders in a Restaurant
    
    1419. Minimum Number of Frogs Croaking
    
    1420. Build Array Where You Can Find The Maximum Exactly K Comparisons
    
    1421. NPV Queries
    
    1422. Maximum Score After Splitting a String
    
    1423. Maximum Points You Can Obtain from Cards
    
    1424. Diagonal Traverse II
    
    1425. Constrained Subsequence Sum
    
    1426. Counting Elements
    
    1427. Perform String Shifts
    
    1428. Leftmost Column with at Least a One
    
    1429. First Unique Number
    
    1430. Check If a String Is a Valid Sequence from Root to Leaves Path in a Binary Tree
    
    1431. Kids With the Greatest Number of Candies
    
    1432. Max Difference You Can Get From Changing an Integer
    
    1433. Check If a String Can Break Another String
    
    1434. Number of Ways to Wear Different Hats to Each Other
    
    1435. Create a Session Bar Chart
    
    1436. Destination City
    
    1437. Check If All 1's Are at Least Length K Places Away
    
    1438. Longest Continuous Subarray With Absolute Diff Less Than or Equal to Limit
    
    1439. Find the Kth Smallest Sum of a Matrix With Sorted Rows
    
    1440. Evaluate Boolean Expression
    
    1441. Build an Array With Stack Operations
    
    1442. Count Triplets That Can Form Two Arrays of Equal XOR
    
    1443. Minimum Time to Collect All Apples in a Tree
    
    1444. Number of Ways of Cutting a Pizza
    
    1445. Apples & Oranges
    
    1446. Consecutive Characters
    
    1447. Simplified Fractions
    
    1448. Count Good Nodes in Binary Tree
    
    1449. Form Largest Integer With Digits That Add up to Target
    
    1450. Number of Students Doing Homework at a Given Time
    
    1451. Rearrange Words in a Sentence
    
    1452. People Whose List of Favorite Companies Is Not a Subset of Another List
    
    1453. Maximum Number of Darts Inside of a Circular Dartboard
    
    1454. Active Users
    
    1455. Check If a Word Occurs As a Prefix of Any Word in a Sentence
    
    1456. Maximum Number of Vowels in a Substring of Given Length
    
    1457. Pseudo-Palindromic Paths in a Binary Tree
    
    1458. Max Dot Product of Two Subsequences
    
    1459. Rectangles Area
    
    1460. Make Two Arrays Equal by Reversing Subarrays
    
    1461. Check If a String Contains All Binary Codes of Size K
    
    1462. Course Schedule IV
    
    1463. Cherry Pickup II
    
    1464. Maximum Product of Two Elements in an Array
    
    1465. Maximum Area of a Piece of Cake After Horizontal and Vertical Cuts
    
    1466. Reorder Routes to Make All Paths Lead to the City Zero
    
    1467. Probability of a Two Boxes Having The Same Number of Distinct Balls
    
    1468. Calculate Salaries
    
    1469. Find All The Lonely Nodes
    
    1470. Shuffle the Array
    
    1471. The k Strongest Values in an Array
    
    1472. Design Browser History
    
    1473. Paint House III
    
    1474. Delete N Nodes After M Nodes of a Linked List
    
    1475. Final Prices With a Special Discount in a Shop
    
    1476. Subrectangle Queries
    
    1477. Find Two Non-overlapping Sub-arrays Each With Target Sum
    
    1478. Allocate Mailboxes
    
    1479. Sales by Day of the Week
    
    1480. Running Sum of 1d Array
    
    1481. Least Number of Unique Integers after K Removals
    
    1482. Minimum Number of Days to Make m Bouquets
    
    1483. Kth Ancestor of a Tree Node
    
    1484. Group Sold Products By The Date
    
    1485. Clone Binary Tree With Random Pointer
    
    1486. XOR Operation in an Array
    
    1487. Making File Names Unique
    
    1488. Avoid Flood in The City
    
    1489. Find Critical and Pseudo-Critical Edges in Minimum Spanning Tree
    
    1490. Clone N-ary Tree
    
    1491. Average Salary Excluding the Minimum and Maximum Salary
    
    1492. The kth Factor of n
    
    1493. Longest Subarray of 1's After Deleting One Element
    
    1494. Parallel Courses II
    
    1495. Friendly Movies Streamed Last Month
    
    1496. Path Crossing
    
    1497. Check If Array Pairs Are Divisible by k
    
    1498. Number of Subsequences That Satisfy the Given Sum Condition
    
    1499. Max Value of Equation
    
    1500. Design a File Sharing System
    
    1501. Countries You Can Safely Invest In
    
    1502. Can Make Arithmetic Progression From Sequence
    
    1503. Last Moment Before All Ants Fall Out of a Plank
    
    1504. Count Submatrices With All Ones
    
    1505. Minimum Possible Integer After at Most K Adjacent Swaps On Digits
    
    1506. Find Root of N-Ary Tree
    
    1507. Reformat Date
    
    1508. Range Sum of Sorted Subarray Sums
    
    1509. Minimum Difference Between Largest and Smallest Value in Three Moves
    
    1510. Stone Game IV
    
    1511. Customer Order Frequency
    
    1512. Number of Good Pairs
    
    1513. Number of Substrings With Only 1s
    
    1514. Path with Maximum Probability
    
    1515. Best Position for a Service Centre
    
    1516. Move Sub-Tree of N-Ary Tree
    
    1517. Find Users With Valid E-Mails
    
    1518. Water Bottles
    
    1519. Number of Nodes in the Sub-Tree With the Same Label
    
    1520. Maximum Number of Non-Overlapping Substrings
    
    1521. Find a Value of a Mysterious Function Closest to Target
    
    1522. Diameter of N-Ary Tree
    
    1523. Count Odd Numbers in an Interval Range
    
    1524. Number of Sub-arrays With Odd Sum
    
    1525. Number of Good Ways to Split a String
    
    1526. Minimum Number of Increments on Subarrays to Form a Target Array
    
    1527. Patients With a Condition
    
    1528. Shuffle String
    
    1529. Minimum Suffix Flips
    
    1530. Number of Good Leaf Nodes Pairs
    
    1531. String Compression II
    
    1532. The Most Recent Three Orders
    
    1533. Find the Index of the Large Integer
    
    1534. Count Good Triplets
    
    1535. Find the Winner of an Array Game
    
    1536. Minimum Swaps to Arrange a Binary Grid
    
    1537. Get the Maximum Score
    
    1538. Guess the Majority in a Hidden Array
    
    1539. Kth Missing Positive Number
    
    1540. Can Convert String in K Moves
    
    1541. Minimum Insertions to Balance a Parentheses String
    
    1542. Find Longest Awesome Substring
    
    1543. Fix Product Name Format
    
    1544. Make The String Great
    
    1545. Find Kth Bit in Nth Binary String
    
    1546. Maximum Number of Non-Overlapping Subarrays With Sum Equals Target
    
    1547. Minimum Cost to Cut a Stick
    
    1548. The Most Similar Path in a Graph
    
    1549. The Most Recent Orders for Each Product
    
    1550. Three Consecutive Odds
    
    1551. Minimum Operations to Make Array Equal
    
    1552. Magnetic Force Between Two Balls
    
    1553. Minimum Number of Days to Eat N Oranges
    
    1554. Strings Differ by One Character
    
    1555. Bank Account Summary
    
    1556. Thousand Separator
    
    1557. Minimum Number of Vertices to Reach All Nodes
    
    1558. Minimum Numbers of Function Calls to Make Target Array
    
    1559. Detect Cycles in 2D Grid
    
    1560. Most Visited Sector in a Circular Track
    
    1561. Maximum Number of Coins You Can Get
    
    1562. Find Latest Group of Size M
    
    1563. Stone Game V
    
    1564. Put Boxes Into the Warehouse I
    
    1565. Unique Orders and Customers Per Month
    
    1566. Detect Pattern of Length M Repeated K or More Times
    
    1567. Maximum Length of Subarray With Positive Product
    
    1568. Minimum Number of Days to Disconnect Island
    
    1569. Number of Ways to Reorder Array to Get Same BST
    
    1570. Dot Product of Two Sparse Vectors
    
    1571. Warehouse Manager
    
    1572. Matrix Diagonal Sum
    
    1573. Number of Ways to Split a String
    
    1574. Shortest Subarray to be Removed to Make Array Sorted
    
    1575. Count All Possible Routes
    
    1576. Replace All ?'s to Avoid Consecutive Repeating Characters
    
    1577. Number of Ways Where Square of Number Is Equal to Product of Two Numbers
    
    1578. Minimum Time to Make Rope Colorful
    
    1579. Remove Max Number of Edges to Keep Graph Fully Traversable
    
    1580. Put Boxes Into the Warehouse II
    
    1581. Customer Who Visited but Did Not Make Any Transactions
    
    1582. Special Positions in a Binary Matrix
    
    1583. Count Unhappy Friends
    
    1584. Min Cost to Connect All Points
    
    1585. Check If String Is Transformable With Substring Sort Operations
    
    1586. Binary Search Tree Iterator II
    
    1587. Bank Account Summary II
    
    1588. Sum of All Odd Length Subarrays
    
    1589. Maximum Sum Obtained of Any Permutation
    
    1590. Make Sum Divisible by P
    
    1591. Strange Printer II
    
    1592. Rearrange Spaces Between Words
    
    1593. Split a String Into the Max Number of Unique Substrings
    
    1594. Maximum Non Negative Product in a Matrix
    
    1595. Minimum Cost to Connect Two Groups of Points
    
    1596. The Most Frequently Ordered Products for Each Customer
    
    1597. Build Binary Expression Tree From Infix Expression
    
    1598. Crawler Log Folder
    
    1599. Maximum Profit of Operating a Centennial Wheel
    
    1600. Throne Inheritance
    
    1601. Maximum Number of Achievable Transfer Requests
    
    1602. Find Nearest Right Node in Binary Tree
    
    1603. Design Parking System
    
    1604. Alert Using Same Key-Card Three or More Times in a One Hour Period
    
    1605. Find Valid Matrix Given Row and Column Sums
    
    1606. Find Servers That Handled Most Number of Requests
    
    1607. Sellers With No Sales
    
    1608. Special Array With X Elements Greater Than or Equal X
    
    1609. Even Odd Tree
    
    1610. Maximum Number of Visible Points
    
    1611. Minimum One Bit Operations to Make Integers Zero
    
    1612. Check If Two Expression Trees are Equivalent
    
    1613. Find the Missing IDs
    
    1614. Maximum Nesting Depth of the Parentheses
    
    1615. Maximal Network Rank
    
    1616. Split Two Strings to Make Palindrome
    
    1617. Count Subtrees With Max Distance Between Cities
    
    1618. Maximum Font to Fit a Sentence in a Screen
    
    1619. Mean of Array After Removing Some Elements
    
    1620. Coordinate With Maximum Network Quality
    
    1621. Number of Sets of K Non-Overlapping Line Segments
    
    1622. Fancy Sequence
    
    1623. All Valid Triplets That Can Represent a Country
    
    1624. Largest Substring Between Two Equal Characters
    
    1625. Lexicographically Smallest String After Applying Operations
    
    1626. Best Team With No Conflicts
    
    1627. Graph Connectivity With Threshold
    
    1628. Design an Expression Tree With Evaluate Function
    
    1629. Slowest Key
    
    1630. Arithmetic Subarrays
    
    1631. Path With Minimum Effort
    
    1632. Rank Transform of a Matrix
    
    1633. Percentage of Users Attended a Contest
    
    1634. Add Two Polynomials Represented as Linked Lists
    
    1635. Hopper Company Queries I
    
    1636. Sort Array by Increasing Frequency
    
    1637. Widest Vertical Area Between Two Points Containing No Points
    
    1638. Count Substrings That Differ by One Character
    
    1639. Number of Ways to Form a Target String Given a Dictionary
    
    1640. Check Array Formation Through Concatenation
    
    1641. Count Sorted Vowel Strings
    
    1642. Furthest Building You Can Reach
    
    1643. Kth Smallest Instructions
    
    1644. Lowest Common Ancestor of a Binary Tree II
    
    1645. Hopper Company Queries II
    
    1646. Get Maximum in Generated Array
    
    1647. Minimum Deletions to Make Character Frequencies Unique
    
    1648. Sell Diminishing-Valued Colored Balls
    
    1649. Create Sorted Array through Instructions
    
    1650. Lowest Common Ancestor of a Binary Tree III
    
    1651. Hopper Company Queries III
    
    1652. Defuse the Bomb
    
    1653. Minimum Deletions to Make String Balanced
    
    1654. Minimum Jumps to Reach Home
    
    1655. Distribute Repeating Integers
    
    1656. Design an Ordered Stream
    
    1657. Determine if Two Strings Are Close
    
    1658. Minimum Operations to Reduce X to Zero
    
    1659. Maximize Grid Happiness
    
    1660. Correct a Binary Tree
    
    1661. Average Time of Process per Machine
    
    1662. Check If Two String Arrays are Equivalent
    
    1663. Smallest String With A Given Numeric Value
    
    1664. Ways to Make a Fair Array
    
    1665. Minimum Initial Energy to Finish Tasks
    
    1666. Change the Root of a Binary Tree
    
    1667. Fix Names in a Table
    
    1668. Maximum Repeating Substring
    
    1669. Merge In Between Linked Lists
    
    1670. Design Front Middle Back Queue
    
    1671. Minimum Number of Removals to Make Mountain Array
    
    1672. Richest Customer Wealth
    
    1673. Find the Most Competitive Subsequence
    
    1674. Minimum Moves to Make Array Complementary
    
    1675. Minimize Deviation in Array
    
    1676. Lowest Common Ancestor of a Binary Tree IV
    
    1677. Product's Worth Over Invoices
    
    1678. Goal Parser Interpretation
    
    1679. Max Number of K-Sum Pairs
    
    1680. Concatenation of Consecutive Binary Numbers
    
    1681. Minimum Incompatibility
    
    1682. Longest Palindromic Subsequence II
    
    1683. Invalid Tweets
    
    1684. Count the Number of Consistent Strings
    
    1685. Sum of Absolute Differences in a Sorted Array
    
    1686. Stone Game VI
    
    1687. Delivering Boxes from Storage to Ports
    
    1688. Count of Matches in Tournament
    
    1689. Partitioning Into Minimum Number Of Deci-Binary Numbers
    
    1690. Stone Game VII
    
    1691. Maximum Height by Stacking Cuboids
    
    1692. Count Ways to Distribute Candies
    
    1693. Daily Leads and Partners
    
    1694. Reformat Phone Number
    
    1695. Maximum Erasure Value
    
    1696. Jump Game VI
    
    1697. Checking Existence of Edge Length Limited Paths
    
    1698. Number of Distinct Substrings in a String
    
    1699. Number of Calls Between Two Persons
    
    1700. Number of Students Unable to Eat Lunch
    
    1701. Average Waiting Time
    
    1702. Maximum Binary String After Change
    
    1703. Minimum Adjacent Swaps for K Consecutive Ones
    
    1704. Determine if String Halves Are Alike
    
    1705. Maximum Number of Eaten Apples
    
    1706. Where Will the Ball Fall
    
    1707. Maximum XOR With an Element From Array
    
    1708. Largest Subarray Length K
    
    1709. Biggest Window Between Visits
    
    1710. Maximum Units on a Truck
    
    1711. Count Good Meals
    
    1712. Ways to Split Array Into Three Subarrays
    
    1713. Minimum Operations to Make a Subsequence
    
    1714. Sum Of Special Evenly-Spaced Elements In Array
    
    1715. Count Apples and Oranges
    
    1716. Calculate Money in Leetcode Bank
    
    1717. Maximum Score From Removing Substrings
    
    1718. Construct the Lexicographically Largest Valid Sequence
    
    1719. Number Of Ways To Reconstruct A Tree
    
    1720. Decode XORed Array
    
    1721. Swapping Nodes in a Linked List
    
    1722. Minimize Hamming Distance After Swap Operations
    
    1723. Find Minimum Time to Finish All Jobs
    
    1724. Checking Existence of Edge Length Limited Paths II
    
    1725. Number Of Rectangles That Can Form The Largest Square
    
    1726. Tuple with Same Product
    
    1727. Largest Submatrix With Rearrangements
    
    1728. Cat and Mouse II
    
    1729. Find Followers Count
    
    1730. Shortest Path to Get Food
    
    1731. The Number of Employees Which Report to Each Employee
    
    1732. Find the Highest Altitude
    
    1733. Minimum Number of People to Teach
    
    1734. Decode XORed Permutation
    
    1735. Count Ways to Make Array With Product
    
    1736. Latest Time by Replacing Hidden Digits
    
    1737. Change Minimum Characters to Satisfy One of Three Conditions
    
    1738. Find Kth Largest XOR Coordinate Value
    
    1739. Building Boxes
    
    1740. Find Distance in a Binary Tree
    
    1741. Find Total Time Spent by Each Employee
    
    1742. Maximum Number of Balls in a Box
    
    1743. Restore the Array From Adjacent Pairs
    
    1744. Can You Eat Your Favorite Candy on Your Favorite Day?
    
    1745. Palindrome Partitioning IV
    
    1746. Maximum Subarray Sum After One Operation
    
    1747. Leetflex Banned Accounts
    
    1748. Sum of Unique Elements
    
    1749. Maximum Absolute Sum of Any Subarray
    
    1750. Minimum Length of String After Deleting Similar Ends
    
    1751. Maximum Number of Events That Can Be Attended II
    
    1752. Check if Array Is Sorted and Rotated
    
    1753. Maximum Score From Removing Stones
    
    1754. Largest Merge Of Two Strings
    
    1755. Closest Subsequence Sum
    
    1756. Design Most Recently Used Queue
    
    1757. Recyclable and Low Fat Products
    
    1758. Minimum Changes To Make Alternating Binary String
    
    1759. Count Number of Homogenous Substrings
    
    1760. Minimum Limit of Balls in a Bag
    
    1761. Minimum Degree of a Connected Trio in a Graph
    
    1762. Buildings With an Ocean View
    
    1763. Longest Nice Substring
    
    1764. Form Array by Concatenating Subarrays of Another Array
    
    1765. Map of Highest Peak
    
    1766. Tree of Coprimes
    
    1767. Find the Subtasks That Did Not Execute
    
    1768. Merge Strings Alternately
    
    1769. Minimum Number of Operations to Move All Balls to Each Box
    
    1770. Maximum Score from Performing Multiplication Operations
    
    1771. Maximize Palindrome Length From Subsequences
    
    1772. Sort Features by Popularity
    
    1773. Count Items Matching a Rule
    
    1774. Closest Dessert Cost
    
    1775. Equal Sum Arrays With Minimum Number of Operations
    
    1776. Car Fleet II
    
    1777. Product's Price for Each Store
    
    1778. Shortest Path in a Hidden Grid
    
    1779. Find Nearest Point That Has the Same X or Y Coordinate
    
    1780. Check if Number is a Sum of Powers of Three
    
    1781. Sum of Beauty of All Substrings
    
    1782. Count Pairs Of Nodes
    
    1783. Grand Slam Titles
    
    1784. Check if Binary String Has at Most One Segment of Ones
    
    1785. Minimum Elements to Add to Form a Given Sum
    
    1786. Number of Restricted Paths From First to Last Node
    
    1787. Make the XOR of All Segments Equal to Zero
    
    1788. Maximize the Beauty of the Garden
    
    1789. Primary Department for Each Employee
    
    1790. Check if One String Swap Can Make Strings Equal
    
    1791. Find Center of Star Graph
    
    1792. Maximum Average Pass Ratio
    
    1793. Maximum Score of a Good Subarray
    
    1794. Count Pairs of Equal Substrings With Minimum Difference
    
    1795. Rearrange Products Table
    
    1796. Second Largest Digit in a String
    
    1797. Design Authentication Manager
    
    1798. Maximum Number of Consecutive Values You Can Make
    
    1799. Maximize Score After N Operations
    
    1800. Maximum Ascending Subarray Sum
    
    1801. Number of Orders in the Backlog
    
    1802. Maximum Value at a Given Index in a Bounded Array
    
    1803. Count Pairs With XOR in a Range
    
    1804. Implement Trie II (Prefix Tree)
    
    1805. Number of Different Integers in a String
    
    1806. Minimum Number of Operations to Reinitialize a Permutation
    
    1807. Evaluate the Bracket Pairs of a String
    
    1808. Maximize Number of Nice Divisors
    
    1809. Ad-Free Sessions
    
    1810. Minimum Path Cost in a Hidden Grid
    
    1811. Find Interview Candidates
    
    1812. Determine Color of a Chessboard Square
    
    1813. Sentence Similarity III
    
    1814. Count Nice Pairs in an Array
    
    1815. Maximum Number of Groups Getting Fresh Donuts
    
    1816. Truncate Sentence
    
    1817. Finding the Users Active Minutes
    
    1818. Minimum Absolute Sum Difference
    
    1819. Number of Different Subsequences GCDs
    
    1820. Maximum Number of Accepted Invitations
    
    1821. Find Customers With Positive Revenue this Year
    
    1822. Sign of the Product of an Array
    
    1823. Find the Winner of the Circular Game
    
    1824. Minimum Sideway Jumps
    
    1825. Finding MK Average
    
    1826. Faulty Sensor
    
    1827. Minimum Operations to Make the Array Increasing
    
    1828. Queries on Number of Points Inside a Circle
    
    1829. Maximum XOR for Each Query
    
    1830. Minimum Number of Operations to Make String Sorted
    
    1831. Maximum Transaction Each Day
    
    1832. Check if the Sentence Is Pangram
    
    1833. Maximum Ice Cream Bars
    
    1834. Single-Threaded CPU
    
    1835. Find XOR Sum of All Pairs Bitwise AND
    
    1836. Remove Duplicates From an Unsorted Linked List
    
    1837. Sum of Digits in Base K
    
    1838. Frequency of the Most Frequent Element
    
    1839. Longest Substring Of All Vowels in Order
    
    1840. Maximum Building Height
    
    1841. League Statistics
    
    1842. Next Palindrome Using Same Digits
    
    1843. Suspicious Bank Accounts
    
    1844. Replace All Digits with Characters
    
    1845. Seat Reservation Manager
    
    1846. Maximum Element After Decreasing and Rearranging
    
    1847. Closest Room
    
    1848. Minimum Distance to the Target Element
    
    1849. Splitting a String Into Descending Consecutive Values
    
    1850. Minimum Adjacent Swaps to Reach the Kth Smallest Number
    
    1851. Minimum Interval to Include Each Query
    
    1852. Distinct Numbers in Each Subarray
    
    1853. Convert Date Format
    
    1854. Maximum Population Year
    
    1855. Maximum Distance Between a Pair of Values
    
    1856. Maximum Subarray Min-Product
    
    1857. Largest Color Value in a Directed Graph
    
    1858. Longest Word With All Prefixes
    
    1859. Sorting the Sentence
    
    1860. Incremental Memory Leak
    
    1861. Rotating the Box
    
    1862. Sum of Floored Pairs
    
    1863. Sum of All Subset XOR Totals
    
    1864. Minimum Number of Swaps to Make the Binary String Alternating
    
    1865. Finding Pairs With a Certain Sum
    
    1866. Number of Ways to Rearrange Sticks With K Sticks Visible
    
    1867. Orders With Maximum Quantity Above Average
    
    1868. Product of Two Run-Length Encoded Arrays
    
    1869. Longer Contiguous Segments of Ones than Zeros
    
    1870. Minimum Speed to Arrive on Time
    
    1871. Jump Game VII
    
    1872. Stone Game VIII
    
    1873. Calculate Special Bonus
    
    1874. Minimize Product Sum of Two Arrays
    
    1875. Group Employees of the Same Salary
    
    1876. Substrings of Size Three with Distinct Characters
    
    1877. Minimize Maximum Pair Sum in Array
    
    1878. Get Biggest Three Rhombus Sums in a Grid
    
    1879. Minimum XOR Sum of Two Arrays
    
    1880. Check if Word Equals Summation of Two Words
    
    1881. Maximum Value after Insertion
    
    1882. Process Tasks Using Servers
    
    1883. Minimum Skips to Arrive at Meeting On Time
    
    1884. Egg Drop With 2 Eggs and N Floors
    
    1885. Count Pairs in Two Arrays
    
    1886. Determine Whether Matrix Can Be Obtained By Rotation
    
    1887. Reduction Operations to Make the Array Elements Equal
    
    1888. Minimum Number of Flips to Make the Binary String Alternating
    
    1889. Minimum Space Wasted From Packaging
    
    1890. The Latest Login in 2020
    
    1891. Cutting Ribbons
    
    1892. Page Recommendations II
    
    1893. Check if All the Integers in a Range Are Covered
    
    1894. Find the Student that Will Replace the Chalk
    
    1895. Largest Magic Square
    
    1896. Minimum Cost to Change the Final Value of Expression
    
    1897. Redistribute Characters to Make All Strings Equal
    
    1898. Maximum Number of Removable Characters
    
    1899. Merge Triplets to Form Target Triplet
    
    1900. The Earliest and Latest Rounds Where Players Compete
    
    1901. Find a Peak Element II
    
    1902. Depth of BST Given Insertion Order
    
    1903. Largest Odd Number in String
    
    1904. The Number of Full Rounds You Have Played
    
    1905. Count Sub Islands
    
    1906. Minimum Absolute Difference Queries
    
    1907. Count Salary Categories
    
    1908. Game of Nim
    
    1909. Remove One Element to Make the Array Strictly Increasing
    
    1910. Remove All Occurrences of a Substring
    
    1911. Maximum Alternating Subsequence Sum
    
    1912. Design Movie Rental System
    
    1913. Maximum Product Difference Between Two Pairs
    
    1914. Cyclically Rotating a Grid
    
    1915. Number of Wonderful Substrings
    
    1916. Count Ways to Build Rooms in an Ant Colony
    
    1917. Leetcodify Friends Recommendations
    
    1918. Kth Smallest Subarray Sum
    
    1919. Leetcodify Similar Friends
    
    1920. Build Array from Permutation
    
    1921. Eliminate Maximum Number of Monsters
    
    1922. Count Good Numbers
    
    1923. Longest Common Subpath
    
    1924. Erect the Fence II
    
    1925. Count Square Sum Triples
    
    1926. Nearest Exit from Entrance in Maze
    
    1927. Sum Game
    
    1928. Minimum Cost to Reach Destination in Time
    
    1929. Concatenation of Array
    
    1930. Unique Length-3 Palindromic Subsequences
    
    1931. Painting a Grid With Three Different Colors
    
    1932. Merge BSTs to Create Single BST
    
    1933. Check if String Is Decomposable Into Value-Equal Substrings
    
    1934. Confirmation Rate
    
    1935. Maximum Number of Words You Can Type
    
    1936. Add Minimum Number of Rungs
    
    1937. Maximum Number of Points with Cost
    
    1938. Maximum Genetic Difference Query
    
    1939. Users That Actively Request Confirmation Messages
    
    1940. Longest Common Subsequence Between Sorted Arrays
    
    1941. Check if All Characters Have Equal Number of Occurrences
    
    1942. The Number of the Smallest Unoccupied Chair
    
    1943. Describe the Painting
    
    1944. Number of Visible People in a Queue
    
    1945. Sum of Digits of String After Convert
    
    1946. Largest Number After Mutating Substring
    
    1947. Maximum Compatibility Score Sum
    
    1948. Delete Duplicate Folders in System
    
    1949. Strong Friendship
    
    1950. Maximum of Minimum Values in All Subarrays
    
    1951. All the Pairs With the Maximum Number of Common Followers
    
    1952. Three Divisors
    
    1953. Maximum Number of Weeks for Which You Can Work
    
    1954. Minimum Garden Perimeter to Collect Enough Apples
    
    1955. Count Number of Special Subsequences
    
    1956. Minimum Time For K Virus Variants to Spread
    
    1957. Delete Characters to Make Fancy String
    
    1958. Check if Move is Legal
    
    1959. Minimum Total Space Wasted With K Resizing Operations
    
    1960. Maximum Product of the Length of Two Palindromic Substrings
    
    1961. Check If String Is a Prefix of Array
    
    1962. Remove Stones to Minimize the Total
    
    1963. Minimum Number of Swaps to Make the String Balanced
    
    1964. Find the Longest Valid Obstacle Course at Each Position
    
    1965. Employees With Missing Information
    
    1966. Binary Searchable Numbers in an Unsorted Array
    
    1967. Number of Strings That Appear as Substrings in Word
    
    1968. Array With Elements Not Equal to Average of Neighbors
    
    1969. Minimum Non-Zero Product of the Array Elements
    
    1970. Last Day Where You Can Still Cross
    
    1971. Find if Path Exists in Graph
    
    1972. First and Last Call On the Same Day
    
    1973. Count Nodes Equal to Sum of Descendants
    
    1974. Minimum Time to Type Word Using Special Typewriter
    
    1975. Maximum Matrix Sum
    
    1976. Number of Ways to Arrive at Destination
    
    1977. Number of Ways to Separate Numbers
    
    1978. Employees Whose Manager Left the Company
    
    1979. Find Greatest Common Divisor of Array
    
    1980. Find Unique Binary String
    
    1981. Minimize the Difference Between Target and Chosen Elements
    
    1982. Find Array Given Subset Sums
    
    1983. Widest Pair of Indices With Equal Range Sum
    
    1984. Minimum Difference Between Highest and Lowest of K Scores
    
    1985. Find the Kth Largest Integer in the Array
    
    1986. Minimum Number of Work Sessions to Finish the Tasks
    
    1987. Number of Unique Good Subsequences
    
    1988. Find Cutoff Score for Each School
    
    1989. Maximum Number of People That Can Be Caught in Tag
    
    1990. Count the Number of Experiments
    
    1991. Find the Middle Index in Array
    
    1992. Find All Groups of Farmland
    
    1993. Operations on Tree
    
    1994. The Number of Good Subsets
    
    1995. Count Special Quadruplets
    
    1996. The Number of Weak Characters in the Game
    
    1997. First Day Where You Have Been in All the Rooms
    
    1998. GCD Sort of an Array
    
    1999. Smallest Greater Multiple Made of Two Digits
    
    2000. Reverse Prefix of Word
    
    2001. Number of Pairs of Interchangeable Rectangles
    
    2002. Maximum Product of the Length of Two Palindromic Subsequences
    
    2003. Smallest Missing Genetic Value in Each Subtree
    
    2004. The Number of Seniors and Juniors to Join the Company
    
    2005. Subtree Removal Game with Fibonacci Tree
    
    2006. Count Number of Pairs With Absolute Difference K
    
    2007. Find Original Array From Doubled Array
    
    2008. Maximum Earnings From Taxi
    
    2009. Minimum Number of Operations to Make Array Continuous
    
    2010. The Number of Seniors and Juniors to Join the Company II
    
    2011. Final Value of Variable After Performing Operations
    
    2012. Sum of Beauty in the Array
    
    2013. Detect Squares
    
    2014. Longest Subsequence Repeated k Times
    
    2015. Average Height of Buildings in Each Segment
    
    2016. Maximum Difference Between Increasing Elements
    
    2017. Grid Game
    
    2018. Check if Word Can Be Placed In Crossword
    
    2019. The Score of Students Solving Math Expression
    
    2020. Number of Accounts That Did Not Stream
    
    2021. Brightest Position on Street
    
    2022. Convert 1D Array Into 2D Array
    
    2023. Number of Pairs of Strings With Concatenation Equal to Target
    
    2024. Maximize the Confusion of an Exam
    
    2025. Maximum Number of Ways to Partition an Array
    
    2026. Low-Quality Problems
    
    2027. Minimum Moves to Convert String
    
    2028. Find Missing Observations
    
    2029. Stone Game IX
    
    2030. Smallest K-Length Subsequence With Occurrences of a Letter
    
    2031. Count Subarrays With More Ones Than Zeros
    
    2032. Two Out of Three
    
    2033. Minimum Operations to Make a Uni-Value Grid
    
    2034. Stock Price Fluctuation
    
    2035. Partition Array Into Two Arrays to Minimize Sum Difference
    
    2036. Maximum Alternating Subarray Sum
    
    2037. Minimum Number of Moves to Seat Everyone
    
    2038. Remove Colored Pieces if Both Neighbors are the Same Color
    
    2039. The Time When the Network Becomes Idle
    
    2040. Kth Smallest Product of Two Sorted Arrays
    
    2041. Accepted Candidates From the Interviews
    
    2042. Check if Numbers Are Ascending in a Sentence
    
    2043. Simple Bank System
    
    2044. Count Number of Maximum Bitwise-OR Subsets
    
    2045. Second Minimum Time to Reach Destination
    
    2046. Sort Linked List Already Sorted Using Absolute Values
    
    2047. Number of Valid Words in a Sentence
    
    2048. Next Greater Numerically Balanced Number
    
    2049. Count Nodes With the Highest Score
    
    2050. Parallel Courses III
    
    2051. The Category of Each Member in the Store
    
    2052. Minimum Cost to Separate Sentence Into Rows
    
    2053. Kth Distinct String in an Array
    
    2054. Two Best Non-Overlapping Events
    
    2055. Plates Between Candles
    
    2056. Number of Valid Move Combinations On Chessboard
    
    2057. Smallest Index With Equal Value
    
    2058. Find the Minimum and Maximum Number of Nodes Between Critical Points
    
    2059. Minimum Operations to Convert Number
    
    2060. Check if an Original String Exists Given Two Encoded Strings
    
    2061. Number of Spaces Cleaning Robot Cleaned
    
    2062. Count Vowel Substrings of a String
    
    2063. Vowels of All Substrings
    
    2064. Minimized Maximum of Products Distributed to Any Store
    
    2065. Maximum Path Quality of a Graph
    
    2066. Account Balance
    
    2067. Number of Equal Count Substrings
    
    2068. Check Whether Two Strings are Almost Equivalent
    
    2069. Walking Robot Simulation II
    
    2070. Most Beautiful Item for Each Query
    
    2071. Maximum Number of Tasks You Can Assign
    
    2072. The Winner University
    
    2073. Time Needed to Buy Tickets
    
    2074. Reverse Nodes in Even Length Groups
    
    2075. Decode the Slanted Ciphertext
    
    2076. Process Restricted Friend Requests
    
    2077. Paths in Maze That Lead to Same Room
    
    2078. Two Furthest Houses With Different Colors
    
    2079. Watering Plants
    
    2080. Range Frequency Queries
    
    2081. Sum of k-Mirror Numbers
    
    2082. The Number of Rich Customers
    
    2083. Substrings That Begin and End With the Same Letter
    
    2084. Drop Type 1 Orders for Customers With Type 0 Orders
    
    2085. Count Common Words With One Occurrence
    
    2086. Minimum Number of Food Buckets to Feed the Hamsters
    
    2087. Minimum Cost Homecoming of a Robot in a Grid
    
    2088. Count Fertile Pyramids in a Land
    
    2089. Find Target Indices After Sorting Array
    
    2090. K Radius Subarray Averages
    
    2091. Removing Minimum and Maximum From Array
    
    2092. Find All People With Secret
    
    2093. Minimum Cost to Reach City With Discounts
    
    2094. Finding 3-Digit Even Numbers
    
    2095. Delete the Middle Node of a Linked List
    
    2096. Step-By-Step Directions From a Binary Tree Node to Another
    
    2097. Valid Arrangement of Pairs
    
    2098. Subsequence of Size K With the Largest Even Sum
    
    2099. Find Subsequence of Length K With the Largest Sum
    
    2100. Find Good Days to Rob the Bank
    
    2101. Detonate the Maximum Bombs
    
    2102. Sequentially Ordinal Rank Tracker
    
    2103. Rings and Rods
    
    2104. Sum of Subarray Ranges
    
    2105. Watering Plants II
    
    2106. Maximum Fruits Harvested After at Most K Steps
    
    2107. Number of Unique Flavors After Sharing K Candies
    
    2108. Find First Palindromic String in the Array
    
    2109. Adding Spaces to a String
    
    2110. Number of Smooth Descent Periods of a Stock
    
    2111. Minimum Operations to Make the Array K-Increasing
    
    2112. The Airport With the Most Traffic
    
    2113. Elements in Array After Removing and Replacing Elements
    
    2114. Maximum Number of Words Found in Sentences
    
    2115. Find All Possible Recipes from Given Supplies
    
    2116. Check if a Parentheses String Can Be Valid
    
    2117. Abbreviating the Product of a Range
    
    2118. Build the Equation
    
    2119. A Number After a Double Reversal
    
    2120. Execution of All Suffix Instructions Staying in a Grid
    
    2121. Intervals Between Identical Elements
    
    2122. Recover the Original Array
    
    2123. Minimum Operations to Remove Adjacent Ones in Matrix
    
    2124. Check if All A's Appears Before All B's
    
    2125. Number of Laser Beams in a Bank
    
    2126. Destroying Asteroids
    
    2127. Maximum Employees to Be Invited to a Meeting
    
    2128. Remove All Ones With Row and Column Flips
    
    2129. Capitalize the Title
    
    2130. Maximum Twin Sum of a Linked List
    
    2131. Longest Palindrome by Concatenating Two Letter Words
    
    2132. Stamping the Grid
    
    2133. Check if Every Row and Column Contains All Numbers
    
    2134. Minimum Swaps to Group All 1's Together II
    
    2135. Count Words Obtained After Adding a Letter
    
    2136. Earliest Possible Day of Full Bloom
    
    2137. Pour Water Between Buckets to Make Water Levels Equal
    
    2138. Divide a String Into Groups of Size k
    
    2139. Minimum Moves to Reach Target Score
    
    2140. Solving Questions With Brainpower
    
    2141. Maximum Running Time of N Computers
    
    2142. The Number of Passengers in Each Bus I
    
    2143. Choose Numbers From Two Arrays in Range
    
    2144. Minimum Cost of Buying Candies With Discount
    
    2145. Count the Hidden Sequences
    
    2146. K Highest Ranked Items Within a Price Range
    
    2147. Number of Ways to Divide a Long Corridor
    
    2148. Count Elements With Strictly Smaller and Greater Elements
    
    2149. Rearrange Array Elements by Sign
    
    2150. Find All Lonely Numbers in the Array
    
    2151. Maximum Good People Based on Statements
    
    2152. Minimum Number of Lines to Cover Points
    
    2153. The Number of Passengers in Each Bus II
    
    2154. Keep Multiplying Found Values by Two
    
    2155. All Divisions With the Highest Score of a Binary Array
    
    2156. Find Substring With Given Hash Value
    
    2157. Groups of Strings
    
    2158. Amount of New Area Painted Each Day
    
    2159. Order Two Columns Independently
    
    2160. Minimum Sum of Four Digit Number After Splitting Digits
    
    2161. Partition Array According to Given Pivot
    
    2162. Minimum Cost to Set Cooking Time
    
    2163. Minimum Difference in Sums After Removal of Elements
    
    2164. Sort Even and Odd Indices Independently
    
    2165. Smallest Value of the Rearranged Number
    
    2166. Design Bitset
    
    2167. Minimum Time to Remove All Cars Containing Illegal Goods
    
    2168. Unique Substrings With Equal Digit Frequency
    
    2169. Count Operations to Obtain Zero
    
    2170. Minimum Operations to Make the Array Alternating
    
    2171. Removing Minimum Number of Magic Beans
    
    2172. Maximum AND Sum of Array
    
    2173. Longest Winning Streak
    
    2174. Remove All Ones With Row and Column Flips II
    
    2175. The Change in Global Rankings
    
    2176. Count Equal and Divisible Pairs in an Array
    
    2177. Find Three Consecutive Integers That Sum to a Given Number
    
    2178. Maximum Split of Positive Even Integers
    
    2179. Count Good Triplets in an Array
    
    2180. Count Integers With Even Digit Sum
    
    2181. Merge Nodes in Between Zeros
    
    2182. Construct String With Repeat Limit
    
    2183. Count Array Pairs Divisible by K
    
    2184. Number of Ways to Build Sturdy Brick Wall
    
    2185. Counting Words With a Given Prefix
    
    2186. Minimum Number of Steps to Make Two Strings Anagram II
    
    2187. Minimum Time to Complete Trips
    
    2188. Minimum Time to Finish the Race
    
    2189. Number of Ways to Build House of Cards
    
    2190. Most Frequent Number Following Key In an Array
    
    2191. Sort the Jumbled Numbers
    
    2192. All Ancestors of a Node in a Directed Acyclic Graph
    
    2193. Minimum Number of Moves to Make Palindrome
    
    2194. Cells in a Range on an Excel Sheet
    
    2195. Append K Integers With Minimal Sum
    
    2196. Create Binary Tree From Descriptions
    
    2197. Replace Non-Coprime Numbers in Array
    
    2198. Number of Single Divisor Triplets
    
    2199. Finding the Topic of Each Post
    
    2200. Find All K-Distant Indices in an Array
    
    2201. Count Artifacts That Can Be Extracted
    
    2202. Maximize the Topmost Element After K Moves
    
    2203. Minimum Weighted Subgraph With the Required Paths
    
    2204. Distance to a Cycle in Undirected Graph
    
    2205. The Number of Users That Are Eligible for Discount
    
    2206. Divide Array Into Equal Pairs
    
    2207. Maximize Number of Subsequences in a String
    
    2208. Minimum Operations to Halve Array Sum
    
    2209. Minimum White Tiles After Covering With Carpets
    
    2210. Count Hills and Valleys in an Array
    
    2211. Count Collisions on a Road
    
    2212. Maximum Points in an Archery Competition
    
    2213. Longest Substring of One Repeating Character
    
    2214. Minimum Health to Beat Game
    
    2215. Find the Difference of Two Arrays
    
    2216. Minimum Deletions to Make Array Beautiful
    
    2217. Find Palindrome With Fixed Length
    
    2218. Maximum Value of K Coins From Piles
    
    2219. Maximum Sum Score of Array
    
    2220. Minimum Bit Flips to Convert Number
    
    2221. Find Triangular Sum of an Array
    
    2222. Number of Ways to Select Buildings
    
    2223. Sum of Scores of Built Strings
    
    2224. Minimum Number of Operations to Convert Time
    
    2225. Find Players With Zero or One Losses
    
    2226. Maximum Candies Allocated to K Children
    
    2227. Encrypt and Decrypt Strings
    
    2228. Users With Two Purchases Within Seven Days
    
    2229. Check if an Array Is Consecutive
    
    2230. The Users That Are Eligible for Discount
    
    2231. Largest Number After Digit Swaps by Parity
    
    2232. Minimize Result by Adding Parentheses to Expression
    
    2233. Maximum Product After K Increments
    
    2234. Maximum Total Beauty of the Gardens
    
    2235. Add Two Integers
    
    2236. Root Equals Sum of Children
    
    2237. Count Positions on Street With Required Brightness
    
    2238. Number of Times a Driver Was a Passenger
    
    2239. Find Closest Number to Zero
    
    2240. Number of Ways to Buy Pens and Pencils
    
    2241. Design an ATM Machine
    
    2242. Maximum Score of a Node Sequence
    
    2243. Calculate Digit Sum of a String
    
    2244. Minimum Rounds to Complete All Tasks
    
    2245. Maximum Trailing Zeros in a Cornered Path
    
    2246. Longest Path With Different Adjacent Characters
    
    2247. Maximum Cost of Trip With K Highways
    
    2248. Intersection of Multiple Arrays
    
    2249. Count Lattice Points Inside a Circle
    
    2250. Count Number of Rectangles Containing Each Point
    
    2251. Number of Flowers in Full Bloom
    
    2252. Dynamic Pivoting of a Table
    
    2253. Dynamic Unpivoting of a Table
    
    2254. Design Video Sharing Platform
    
    2255. Count Prefixes of a Given String
    
    2256. Minimum Average Difference
    
    2257. Count Unguarded Cells in the Grid
    
    2258. Escape the Spreading Fire
    
    2259. Remove Digit From Number to Maximize Result
    
    2260. Minimum Consecutive Cards to Pick Up
    
    2261. K Divisible Elements Subarrays
    
    2262. Total Appeal of A String
    
    2263. Make Array Non-decreasing or Non-increasing
    
    2264. Largest 3-Same-Digit Number in String
    
    2265. Count Nodes Equal to Average of Subtree
    
    2266. Count Number of Texts
    
    2267. Check if There Is a Valid Parentheses String Path
    
    2268. Minimum Number of Keypresses
    
    2269. Find the K-Beauty of a Number
    
    2270. Number of Ways to Split Array
    
    2271. Maximum White Tiles Covered by a Carpet
    
    2272. Substring With Largest Variance
    
    2273. Find Resultant Array After Removing Anagrams
    
    2274. Maximum Consecutive Floors Without Special Floors
    
    2275. Largest Combination With Bitwise AND Greater Than Zero
    
    2276. Count Integers in Intervals
    
    2277. Closest Node to Path in Tree
    
    2278. Percentage of Letter in String
    
    2279. Maximum Bags With Full Capacity of Rocks
    
    2280. Minimum Lines to Represent a Line Chart
    
    2281. Sum of Total Strength of Wizards
    
    2282. Number of People That Can Be Seen in a Grid
    
    2283. Check if Number Has Equal Digit Count and Digit Value
    
    2284. Sender With Largest Word Count
    
    2285. Maximum Total Importance of Roads
    
    2286. Booking Concert Tickets in Groups
    
    2287. Rearrange Characters to Make Target String
    
    2288. Apply Discount to Prices
    
    2289. Steps to Make Array Non-decreasing
    
    2290. Minimum Obstacle Removal to Reach Corner
    
    2291. Maximum Profit From Trading Stocks
    
    2292. Products With Three or More Orders in Two Consecutive Years
    
    2293. Min Max Game
    
    2294. Partition Array Such That Maximum Difference Is K
    
    2295. Replace Elements in an Array
    
    2296. Design a Text Editor
    
    2297. Jump Game VIII
    
    2298. Tasks Count in the Weekend
    
    2299. Strong Password Checker II
    
    2300. Successful Pairs of Spells and Potions
    
    2301. Match Substring After Replacement
    
    2302. Count Subarrays With Score Less Than K
    
    2303. Calculate Amount Paid in Taxes
    
    2304. Minimum Path Cost in a Grid
    
    2305. Fair Distribution of Cookies
    
    2306. Naming a Company
    
    2307. Check for Contradictions in Equations
    
    2308. Arrange Table by Gender
    
    2309. Greatest English Letter in Upper and Lower Case
    
    2310. Sum of Numbers With Units Digit K
    
    2311. Longest Binary Subsequence Less Than or Equal to K
    
    2312. Selling Pieces of Wood
    
    2313. Minimum Flips in Binary Tree to Get Result
    
    2314. The First Day of the Maximum Recorded Degree in Each City
    
    2315. Count Asterisks
    
    2316. Count Unreachable Pairs of Nodes in an Undirected Graph
    
    2317. Maximum XOR After Operations
    
    2318. Number of Distinct Roll Sequences
    
    2319. Check if Matrix Is X-Matrix
    
    2320. Count Number of Ways to Place Houses
    
    2321. Maximum Score Of Spliced Array
    
    2322. Minimum Score After Removals on a Tree
    
    2323. Find Minimum Time to Finish All Jobs II
    
    2324. Product Sales Analysis IV
    
    2325. Decode the Message
    
    2326. Spiral Matrix IV
    
    2327. Number of People Aware of a Secret
    
    2328. Number of Increasing Paths in a Grid
    
    2329. Product Sales Analysis V
    
    2330. Valid Palindrome IV
    
    2331. Evaluate Boolean Binary Tree
    
    2332. The Latest Time to Catch a Bus
    
    2333. Minimum Sum of Squared Difference
    
    2334. Subarray With Elements Greater Than Varying Threshold
    
    2335. Minimum Amount of Time to Fill Cups
    
    2336. Smallest Number in Infinite Set
    
    2337. Move Pieces to Obtain a String
    
    2338. Count the Number of Ideal Arrays
    
    2339. All the Matches of the League
    
    2340. Minimum Adjacent Swaps to Make a Valid Array
    
    2341. Maximum Number of Pairs in Array
    
    2342. Max Sum of a Pair With Equal Sum of Digits
    
    2343. Query Kth Smallest Trimmed Number
    
    2344. Minimum Deletions to Make Array Divisible
    
    2345. Finding the Number of Visible Mountains
    
    2346. Compute the Rank as a Percentage
    
    2347. Best Poker Hand
    
    2348. Number of Zero-Filled Subarrays
    
    2349. Design a Number Container System
    
    2350. Shortest Impossible Sequence of Rolls
    
    2351. First Letter to Appear Twice
    
    2352. Equal Row and Column Pairs
    
    2353. Design a Food Rating System
    
    2354. Number of Excellent Pairs
    
    2355. Maximum Number of Books You Can Take
    
    2356. Number of Unique Subjects Taught by Each Teacher
    
    2357. Make Array Zero by Subtracting Equal Amounts
    
    2358. Maximum Number of Groups Entering a Competition
    
    2359. Find Closest Node to Given Two Nodes
    
    2360. Longest Cycle in a Graph
    
    2361. Minimum Costs Using the Train Line
    
    2362. Generate the Invoice
    
    2363. Merge Similar Items
    
    2364. Count Number of Bad Pairs
    
    2365. Task Scheduler II
    
    2366. Minimum Replacements to Sort the Array
    
    2367. Number of Arithmetic Triplets
    
    2368. Reachable Nodes With Restrictions
    
    2369. Check if There is a Valid Partition For The Array
    
    2370. Longest Ideal Subsequence
    
    2371. Minimize Maximum Value in a Grid
    
    2372. Calculate the Influence of Each Salesperson
    
    2373. Largest Local Values in a Matrix
    
    2374. Node With Highest Edge Score
    
    2375. Construct Smallest Number From DI String
    
    2376. Count Special Integers
    
    2377. Sort the Olympic Table
    
    2378. Choose Edges to Maximize Score in a Tree
    
    2379. Minimum Recolors to Get K Consecutive Black Blocks
    
    2380. Time Needed to Rearrange a Binary String
    
    2381. Shifting Letters II
    
    2382. Maximum Segment Sum After Removals
    
    2383. Minimum Hours of Training to Win a Competition
    
    2384. Largest Palindromic Number
    
    2385. Amount of Time for Binary Tree to Be Infected
    
    2386. Find the K-Sum of an Array
    
    2387. Median of a Row Wise Sorted Matrix
    
    2388. Change Null Values in a Table to the Previous Value
    
    2389. Longest Subsequence With Limited Sum
    
    2390. Removing Stars From a String
    
    2391. Minimum Amount of Time to Collect Garbage
    
    2392. Build a Matrix With Conditions
    
    2393. Count Strictly Increasing Subarrays
    
    2394. Employees With Deductions
    
    2395. Find Subarrays With Equal Sum
    
    2396. Strictly Palindromic Number
    
    2397. Maximum Rows Covered by Columns
    
    2398. Maximum Number of Robots Within Budget
    
    2399. Check Distances Between Same Letters
    
    2400. Number of Ways to Reach a Position After Exactly k Steps
    
    2401. Longest Nice Subarray
    
    2402. Meeting Rooms III
    
    2403. Minimum Time to Kill All Monsters
    
    2404. Most Frequent Even Element
    
    2405. Optimal Partition of String
    
    2406. Divide Intervals Into Minimum Number of Groups
    
    2407. Longest Increasing Subsequence II
    
    2408. Design SQL
    
    2409. Count Days Spent Together
    
    2410. Maximum Matching of Players With Trainers
    
    2411. Smallest Subarrays With Maximum Bitwise OR
    
    2412. Minimum Money Required Before Transactions
    
    2413. Smallest Even Multiple
    
    2414. Length of the Longest Alphabetical Continuous Substring
    
    2415. Reverse Odd Levels of Binary Tree
    
    2416. Sum of Prefix Scores of Strings
    
    2417. Closest Fair Integer
    
    2418. Sort the People
    
    2419. Longest Subarray With Maximum Bitwise AND
    
    2420. Find All Good Indices
    
    2421. Number of Good Paths
    
    2422. Merge Operations to Turn Array Into a Palindrome
    
    2423. Remove Letter To Equalize Frequency
    
    2424. Longest Uploaded Prefix
    
    2425. Bitwise XOR of All Pairings
    
    2426. Number of Pairs Satisfying Inequality
    
    2427. Number of Common Factors
    
    2428. Maximum Sum of an Hourglass
    
    2429. Minimize XOR
    
    2430. Maximum Deletions on a String
    
    2431. Maximize Total Tastiness of Purchased Fruits
    
    2432. The Employee That Worked on the Longest Task
    
    2433. Find The Original Array of Prefix Xor
    
    2434. Using a Robot to Print the Lexicographically Smallest String
    
    2435. Paths in Matrix Whose Sum Is Divisible by K
    
    2436. Minimum Split Into Subarrays With GCD Greater Than One
    
    2437. Number of Valid Clock Times
    
    2438. Range Product Queries of Powers
    
    2439. Minimize Maximum of Array
    
    2440. Create Components With Same Value
    
    2441. Largest Positive Integer That Exists With Its Negative
    
    2442. Count Number of Distinct Integers After Reverse Operations
    
    2443. Sum of Number and Its Reverse
    
    2444. Count Subarrays With Fixed Bounds
    
    2445. Number of Nodes With Value One
    
    2446. Determine if Two Events Have Conflict
    
    2447. Number of Subarrays With GCD Equal to K
    
    2448. Minimum Cost to Make Array Equal
    
    2449. Minimum Number of Operations to Make Arrays Similar
    
    2450. Number of Distinct Binary Strings After Applying Operations
    
    2451. Odd String Difference
    
    2452. Words Within Two Edits of Dictionary
    
    2453. Destroy Sequential Targets
    
    2454. Next Greater Element IV
    
    2455. Average Value of Even Numbers That Are Divisible by Three
    
    2456. Most Popular Video Creator
    
    2457. Minimum Addition to Make Integer Beautiful
    
    2458. Height of Binary Tree After Subtree Removal Queries
    
    2459. Sort Array by Moving Items to Empty Space
    
    2460. Apply Operations to an Array
    
    2461. Maximum Sum of Distinct Subarrays With Length K
    
    2462. Total Cost to Hire K Workers
    
    2463. Minimum Total Distance Traveled
    
    2464. Minimum Subarrays in a Valid Split
    
    2465. Number of Distinct Averages
    
    2466. Count Ways To Build Good Strings
    
    2467. Most Profitable Path in a Tree
    
    2468. Split Message Based on Limit
    
    2469. Convert the Temperature
    
    2470. Number of Subarrays With LCM Equal to K
    
    2471. Minimum Number of Operations to Sort a Binary Tree by Level
    
    2472. Maximum Number of Non-overlapping Palindrome Substrings
    
    2473. Minimum Cost to Buy Apples
    
    2474. Customers With Strictly Increasing Purchases
    
    2475. Number of Unequal Triplets in Array
    
    2476. Closest Nodes Queries in a Binary Search Tree
    
    2477. Minimum Fuel Cost to Report to the Capital
    
    2478. Number of Beautiful Partitions
    
    2479. Maximum XOR of Two Non-Overlapping Subtrees
    
    2480. Form a Chemical Bond
    
    2481. Minimum Cuts to Divide a Circle
    
    2482. Difference Between Ones and Zeros in Row and Column
    
    2483. Minimum Penalty for a Shop
    
    2484. Count Palindromic Subsequences
    
    2485. Find the Pivot Integer
    
    2486. Append Characters to String to Make Subsequence
    
    2487. Remove Nodes From Linked List
    
    2488. Count Subarrays With Median K
    
    2489. Number of Substrings With Fixed Ratio
    
    2490. Circular Sentence
    
    2491. Divide Players Into Teams of Equal Skill
    
    2492. Minimum Score of a Path Between Two Cities
    
    2493. Divide Nodes Into the Maximum Number of Groups
    
    2494. Merge Overlapping Events in the Same Hall
    
    2495. Number of Subarrays Having Even Product
    
    2496. Maximum Value of a String in an Array
    
    2497. Maximum Star Sum of a Graph
    
    2498. Frog Jump II
    
    2499. Minimum Total Cost to Make Arrays Unequal
    
    2500. Delete Greatest Value in Each Row
    
    2501. Longest Square Streak in an Array
    
    2502. Design Memory Allocator
    
    2503. Maximum Number of Points From Grid Queries
    
    2504. Concatenate the Name and the Profession
    
    2505. Bitwise OR of All Subsequence Sums
    
    2506. Count Pairs Of Similar Strings
    
    2507. Smallest Value After Replacing With Sum of Prime Factors
    
    2508. Add Edges to Make Degrees of All Nodes Even
    
    2509. Cycle Length Queries in a Tree
    
    2510. Check if There is a Path With Equal Number of 0's And 1's
    
    2511. Maximum Enemy Forts That Can Be Captured
    
    2512. Reward Top K Students
    
    2513. Minimize the Maximum of Two Arrays
    
    2514. Count Anagrams
    
    2515. Shortest Distance to Target String in a Circular Array
    
    2516. Take K of Each Character From Left and Right
    
    2517. Maximum Tastiness of Candy Basket
    
    2518. Number of Great Partitions
    
    2519. Count the Number of K-Big Indices
    
    2520. Count the Digits That Divide a Number
    
    2521. Distinct Prime Factors of Product of Array
    
    2522. Partition String Into Substrings With Values at Most K
    
    2523. Closest Prime Numbers in Range
    
    2524. Maximum Frequency Score of a Subarray
    
    2525. Categorize Box According to Criteria
    
    2526. Find Consecutive Integers from a Data Stream
    
    2527. Find Xor-Beauty of Array
    
    2528. Maximize the Minimum Powered City
    
    2529. Maximum Count of Positive Integer and Negative Integer
    
    2530. Maximal Score After Applying K Operations
    
    2531. Make Number of Distinct Characters Equal
    
    2532. Time to Cross a Bridge
    
    2533. Number of Good Binary Strings
    
    2534. Time Taken to Cross the Door
    
    2535. Difference Between Element Sum and Digit Sum of an Array
    
    2536. Increment Submatrices by One
    
    2537. Count the Number of Good Subarrays
    
    2538. Difference Between Maximum and Minimum Price Sum
    
    2539. Count the Number of Good Subsequences
    
    2540. Minimum Common Value
    
    2541. Minimum Operations to Make Array Equal II
    
    2542. Maximum Subsequence Score
    
    2543. Check if Point Is Reachable
    
    2544. Alternating Digit Sum
    
    2545. Sort the Students by Their Kth Score
    
    2546. Apply Bitwise Operations to Make Strings Equal
    
    2547. Minimum Cost to Split an Array
    
    2548. Maximum Price to Fill a Bag
    
    2549. Count Distinct Numbers on Board
    
    2550. Count Collisions of Monkeys on a Polygon
    
    2551. Put Marbles in Bags
    
    2552. Count Increasing Quadruplets
    
    2553. Separate the Digits in an Array
    
    2554. Maximum Number of Integers to Choose From a Range I
    
    2555. Maximize Win From Two Segments
    
    2556. Disconnect Path in a Binary Matrix by at Most One Flip
    
    2557. Maximum Number of Integers to Choose From a Range II
    
    2558. Take Gifts From the Richest Pile
    
    2559. Count Vowel Strings in Ranges
    
    2560. House Robber IV
    
    2561. Rearranging Fruits
    
    2562. Find the Array Concatenation Value
    
    2563. Count the Number of Fair Pairs
    
    2564. Substring XOR Queries
    
    2565. Subsequence With the Minimum Score
    
    2566. Maximum Difference by Remapping a Digit
    
    2567. Minimum Score by Changing Two Elements
    
    2568. Minimum Impossible OR
    
    2569. Handling Sum Queries After Update
    
    2570. Merge Two 2D Arrays by Summing Values
    
    2571. Minimum Operations to Reduce an Integer to 0
    
    2572. Count the Number of Square-Free Subsets
    
    2573. Find the String with LCP
    
    2574. Left and Right Sum Differences
    
    2575. Find the Divisibility Array of a String
    
    2576. Find the Maximum Number of Marked Indices
    
    2577. Minimum Time to Visit a Cell In a Grid
    
    2578. Split With Minimum Sum
    
    2579. Count Total Number of Colored Cells
    
    2580. Count Ways to Group Overlapping Ranges
    
    2581. Count Number of Possible Root Nodes
    
    2582. Pass the Pillow
    
    2583. Kth Largest Sum in a Binary Tree
    
    2584. Split the Array to Make Coprime Products
    
    2585. Number of Ways to Earn Points
    
    2586. Count the Number of Vowel Strings in Range
    
    2587. Rearrange Array to Maximize Prefix Score
    
    2588. Count the Number of Beautiful Subarrays
    
    2589. Minimum Time to Complete All Tasks
    
    2590. Design a Todo List
    
    2591. Distribute Money to Maximum Children
    
    2592. Maximize Greatness of an Array
    
    2593. Find Score of an Array After Marking All Elements
    
    2594. Minimum Time to Repair Cars
    
    2595. Number of Even and Odd Bits
    
    2596. Check Knight Tour Configuration
    
    2597. The Number of Beautiful Subsets
    
    2598. Smallest Missing Non-negative Integer After Operations
    
    2599. Make the Prefix Sum Non-negative
    
    2600. K Items With the Maximum Sum
    
    2601. Prime Subtraction Operation
    
    2602. Minimum Operations to Make All Array Elements Equal
    
    2603. Collect Coins in a Tree
    
    2604. Minimum Time to Eat All Grains
    
    2605. Form Smallest Number From Two Digit Arrays
    
    2606. Find the Substring With Maximum Cost
    
    2607. Make K-Subarray Sums Equal
    
    2608. Shortest Cycle in a Graph
    
    2609. Find the Longest Balanced Substring of a Binary String
    
    2610. Convert an Array Into a 2D Array With Conditions
    
    2611. Mice and Cheese
    
    2612. Minimum Reverse Operations
    
    2613. Beautiful Pairs
    
    2614. Prime In Diagonal
    
    2615. Sum of Distances
    
    2616. Minimize the Maximum Difference of Pairs
    
    2617. Minimum Number of Visited Cells in a Grid
    
    2618. Check if Object Instance of Class
    
    2619. Array Prototype Last
    
    2620. Counter
    
    2621. Sleep
    
    2622. Cache With Time Limit
    
    2623. Memoize
    
    2624. Snail Traversal
    
    2625. Flatten Deeply Nested Array
    
    2626. Array Reduce Transformation
    
    2627. Debounce
    
    2628. JSON Deep Equal
    
    2629. Function Composition
    
    2630. Memoize II
    
    2631. Group By
    
    2632. Curry
    
    2633. Convert Object to JSON String
    
    2634. Filter Elements from Array
    
    2635. Apply Transform Over Each Element in Array
    
    2636. Promise Pool
    
    2637. Promise Time Limit
    
    2638. Count the Number of K-Free Subsets
    
    2639. Find the Width of Columns of a Grid
    
    2640. Find the Score of All Prefixes of an Array
    
    2641. Cousins in Binary Tree II
    
    2642. Design Graph With Shortest Path Calculator
    
    2643. Row With Maximum Ones
    
    2644. Find the Maximum Divisibility Score
    
    2645. Minimum Additions to Make Valid String
    
    2646. Minimize the Total Price of the Trips
    
    2647. Color the Triangle Red
    
    2648. Generate Fibonacci Sequence
    
    2649. Nested Array Generator
    
    2650. Design Cancellable Function
    
    2651. Calculate Delayed Arrival Time
    
    2652. Sum Multiples
    
    2653. Sliding Subarray Beauty
    
    2654. Minimum Number of Operations to Make All Array Elements Equal to 1
    
    2655. Find Maximal Uncovered Ranges
    
    2656. Maximum Sum With Exactly K Elements
    
    2657. Find the Prefix Common Array of Two Arrays
    
    2658. Maximum Number of Fish in a Grid
    
    2659. Make Array Empty
    
    2660. Determine the Winner of a Bowling Game
    
    2661. First Completely Painted Row or Column
    
    2662. Minimum Cost of a Path With Special Roads
    
    2663. Lexicographically Smallest Beautiful String
    
    2664. The Knight’s Tour
    
    2665. Counter II
    
    2666. Allow One Function Call
    
    2667. Create Hello World Function
    
    2668. Find Latest Salaries
    
    2669. Count Artist Occurrences On Spotify Ranking List
    
    2670. Find the Distinct Difference Array
    
    2671. Frequency Tracker
    
    2672. Number of Adjacent Elements With the Same Color
    
    2673. Make Costs of Paths Equal in a Binary Tree
    
    2674. Split a Circular Linked List
    
    2675. Array of Objects to Matrix
    
    2676. Throttle
    
    2677. Chunk Array
    
    2678. Number of Senior Citizens
    
    2679. Sum in a Matrix
    
    2680. Maximum OR
    
    2681. Power of Heroes
    
    2682. Find the Losers of the Circular Game
    
    2683. Neighboring Bitwise XOR
    
    2684. Maximum Number of Moves in a Grid
    
    2685. Count the Number of Complete Components
    
    2686. Immediate Food Delivery III
    
    2687. Bikes Last Time Used
    
    2688. Find Active Users
    
    2689. Extract Kth Character From The Rope Tree
    
    2690. Infinite Method Object
    
    2691. Immutability Helper
    
    2692. Make Object Immutable
    
    2693. Call Function with Custom Context
    
    2694. Event Emitter
    
    2695. Array Wrapper
    
    2696. Minimum String Length After Removing Substrings
    
    2697. Lexicographically Smallest Palindrome
    
    2698. Find the Punishment Number of an Integer
    
    2699. Modify Graph Edge Weights
    
    2700. Differences Between Two Objects
    
    2701. Consecutive Transactions with Increasing Amounts
    
    2702. Minimum Operations to Make Numbers Non-positive
    
    2703. Return Length of Arguments Passed
    
    2704. To Be Or Not To Be
    
    2705. Compact Object
    
    2706. Buy Two Chocolates
    
    2707. Extra Characters in a String
    
    2708. Maximum Strength of a Group
    
    2709. Greatest Common Divisor Traversal
    
    2710. Remove Trailing Zeros From a String
    
    2711. Difference of Number of Distinct Values on Diagonals
    
    2712. Minimum Cost to Make All Characters Equal
    
    2713. Maximum Strictly Increasing Cells in a Matrix
    
    2714. Find Shortest Path with K Hops
    
    2715. Timeout Cancellation
    
    2716. Minimize String Length
    
    2717. Semi-Ordered Permutation
    
    2718. Sum of Matrix After Queries
    
    2719. Count of Integers
    
    2720. Popularity Percentage
    
    2721. Execute Asynchronous Functions in Parallel
    
    2722. Join Two Arrays by ID
    
    2723. Add Two Promises
    
    2724. Sort By
    
    2725. Interval Cancellation
    
    2726. Calculator with Method Chaining
    
    2727. Is Object Empty
    
    2728. Count Houses in a Circular Street
    
    2729. Check if The Number is Fascinating
    
    2730. Find the Longest Semi-Repetitive Substring
    
    2731. Movement of Robots
    
    2732. Find a Good Subset of the Matrix
    
    2733. Neither Minimum nor Maximum
    
    2734. Lexicographically Smallest String After Substring Operation
    
    2735. Collecting Chocolates
    
    2736. Maximum Sum Queries
    
    2737. Find the Closest Marked Node
    
    2738. Count Occurrences in Text
    
    2739. Total Distance Traveled
    
    2740. Find the Value of the Partition
    
    2741. Special Permutations
    
    2742. Painting the Walls
    
    2743. Count Substrings Without Repeating Character
    
    2744. Find Maximum Number of String Pairs
    
    2745. Construct the Longest New String
    
    2746. Decremental String Concatenation
    
    2747. Count Zero Request Servers
    
    2748. Number of Beautiful Pairs
    
    2749. Minimum Operations to Make the Integer Zero
    
    2750. Ways to Split Array Into Good Subarrays
    
    2751. Robot Collisions
    
    2752. Customers with Maximum Number of Transactions on Consecutive Days
    
    2753. Count Houses in a Circular Street II
    
    2754. Bind Function to Context
    
    2755. Deep Merge of Two Objects
    
    2756. Query Batching
    
    2757. Generate Circular Array Values
    
    2758. Next Day
    
    2759. Convert JSON String to Object
    
    2760. Longest Even Odd Subarray With Threshold
    
    2761. Prime Pairs With Target Sum
    
    2762. Continuous Subarrays
    
    2763. Sum of Imbalance Numbers of All Subarrays
    
    2764. is Array a Preorder of Some ‌Binary Tree
    
    2765. Longest Alternating Subarray
    
    2766. Relocate Marbles
    
    2767. Partition String Into Minimum Beautiful Substrings
    
    2768. Number of Black Blocks
    
    2769. Find the Maximum Achievable Number
    
    2770. Maximum Number of Jumps to Reach the Last Index
    
    2771. Longest Non-decreasing Subarray From Two Arrays
    
    2772. Apply Operations to Make All Array Elements Equal to Zero
    
    2773. Height of Special Binary Tree
    
    2774. Array Upper Bound
    
    2775. Undefined to Null
    
    2776. Convert Callback Based Function to Promise Based Function
    
    2777. Date Range Generator
    
    2778. Sum of Squares of Special Elements
    
    2779. Maximum Beauty of an Array After Applying Operation
    
    2780. Minimum Index of a Valid Split
    
    2781. Length of the Longest Valid Substring
    
    2782. Number of Unique Categories
    
    2783. Flight Occupancy and Waitlist Analysis
    
    2784. Check if Array is Good
    
    2785. Sort Vowels in a String
    
    2786. Visit Array Positions to Maximize Score
    
    2787. Ways to Express an Integer as Sum of Powers
    
    2788. Split Strings by Separator
    
    2789. Largest Element in an Array after Merge Operations
    
    2790. Maximum Number of Groups With Increasing Length
    
    2791. Count Paths That Can Form a Palindrome in a Tree
    
    2792. Count Nodes That Are Great Enough
    
    2793. Status of Flight Tickets
    
    2794. Create Object from Two Arrays
    
    2795. Parallel Execution of Promises for Individual Results Retrieval
    
    2796. Repeat String
    
    2797. Partial Function with Placeholders
    
    2798. Number of Employees Who Met the Target
    
    2799. Count Complete Subarrays in an Array
    
    2800. Shortest String That Contains Three Strings
    
    2801. Count Stepping Numbers in Range
    
    2802. Find The K-th Lucky Number
    
    2803. Factorial Generator
    
    2804. Array Prototype ForEach
    
    2805. Custom Interval
    
    2806. Account Balance After Rounded Purchase
    
    2807. Insert Greatest Common Divisors in Linked List
    
    2808. Minimum Seconds to Equalize a Circular Array
    
    2809. Minimum Time to Make Array Sum At Most x
    
    2810. Faulty Keyboard
    
    2811. Check if it is Possible to Split Array
    
    2812. Find the Safest Path in a Grid
    
    2813. Maximum Elegance of a K-Length Subsequence
    
    2814. Minimum Time Takes to Reach Destination Without Drowning
    
    2815. Max Pair Sum in an Array
    
    2816. Double a Number Represented as a Linked List
    
    2817. Minimum Absolute Difference Between Elements With Constraint
    
    2818. Apply Operations to Maximize Score
    
    2819. Minimum Relative Loss After Buying Chocolates
    
    2820. Election Results
    
    2821. Delay the Resolution of Each Promise
    
    2822. Inversion of Object
    
    2823. Deep Object Filter
    
    2824. Count Pairs Whose Sum is Less than Target
    
    2825. Make String a Subsequence Using Cyclic Increments
    
    2826. Sorting Three Groups
    
    2827. Number of Beautiful Integers in the Range
    
    2828. Check if a String Is an Acronym of Words
    
    2829. Determine the Minimum Sum of a k-avoiding Array
    
    2830. Maximize the Profit as the Salesman
    
    2831. Find the Longest Equal Subarray
    
    2832. Maximal Range That Each Element Is Maximum in It
    
    2833. Furthest Point From Origin
    
    2834. Find the Minimum Possible Sum of a Beautiful Array
    
    2835. Minimum Operations to Form Subsequence With Target Sum
    
    2836. Maximize Value of Function in a Ball Passing Game
    
    2837. Total Traveled Distance
    
    2838. Maximum Coins Heroes Can Collect
    
    2839. Check if Strings Can be Made Equal With Operations I
    
    2840. Check if Strings Can be Made Equal With Operations II
    
    2841. Maximum Sum of Almost Unique Subarray
    
    2842. Count K-Subsequences of a String With Maximum Beauty
    
    2843. Count Symmetric Integers
    
    2844. Minimum Operations to Make a Special Number
    
    2845. Count of Interesting Subarrays
    
    2846. Minimum Edge Weight Equilibrium Queries in a Tree
    
    2847. Smallest Number With Given Digit Product
    
    2848. Points That Intersect With Cars
    
    2849. Determine if a Cell Is Reachable at a Given Time
    
    2850. Minimum Moves to Spread Stones Over Grid
    
    2851. String Transformation
    
    2852. Sum of Remoteness of All Cells
    
    2853. Highest Salaries Difference
    
    2854. Rolling Average Steps
    
    2855. Minimum Right Shifts to Sort the Array
    
    2856. Minimum Array Length After Pair Removals
    
    2857. Count Pairs of Points With Distance k
    
    2858. Minimum Edge Reversals So Every Node Is Reachable
    
    2859. Sum of Values at Indices With K Set Bits
    
    2860. Happy Students
    
    2861. Maximum Number of Alloys
    
    2862. Maximum Element-Sum of a Complete Subset of Indices
    
    2863. Maximum Length of Semi-Decreasing Subarrays
    
    2864. Maximum Odd Binary Number
    
    2865. Beautiful Towers I
    
    2866. Beautiful Towers II
    
    2867. Count Valid Paths in a Tree
    
    2868. The Wording Game
    
    2869. Minimum Operations to Collect Elements
    
    2870. Minimum Number of Operations to Make Array Empty
    
    2871. Split Array Into Maximum Number of Subarrays
    
    2872. Maximum Number of K-Divisible Components
    
    2873. Maximum Value of an Ordered Triplet I
    
    2874. Maximum Value of an Ordered Triplet II
    
    2875. Minimum Size Subarray in Infinite Array
    
    2876. Count Visited Nodes in a Directed Graph
    
    2877. Create a DataFrame from List
    
    2878. Get the Size of a DataFrame
    
    2879. Display the First Three Rows
    
    2880. Select Data
    
    2881. Create a New Column
    
    2882. Drop Duplicate Rows
    
    2883. Drop Missing Data
    
    2884. Modify Columns
    
    2885. Rename Columns
    
    2886. Change Data Type
    
    2887. Fill Missing Data
    
    2888. Reshape Data: Concatenate
    
    2889. Reshape Data: Pivot
    
    2890. Reshape Data: Melt
    
    2891. Method Chaining
    
    2892. Minimizing Array After Replacing Pairs With Their Product
    
    2893. Calculate Orders Within Each Interval
    
    2894. Divisible and Non-divisible Sums Difference
    
    2895. Minimum Processing Time
    
    2896. Apply Operations to Make Two Strings Equal
    
    2897. Apply Operations on Array to Maximize Sum of Squares
    
    2898. Maximum Linear Stock Score
    
    2899. Last Visited Integers
    
    2900. Longest Unequal Adjacent Groups Subsequence I
    
    2901. Longest Unequal Adjacent Groups Subsequence II
    
    2902. Count of Sub-Multisets With Bounded Sum
    
    2903. Find Indices With Index and Value Difference I
    
    2904. Shortest and Lexicographically Smallest Beautiful String
    
    2905. Find Indices With Index and Value Difference II
    
    2906. Construct Product Matrix
    
    2907. Maximum Profitable Triplets With Increasing Prices I
About
About
- About
- Contributing & Support