summary_en.md

• 0000-0099

  • 0001.Two Sum
  • 0002.Add Two Numbers
  • 0003.Longest Substring Without Repeating Characters
  • 0004.Median of Two Sorted Arrays
  • 0005.Longest Palindromic Substring
  • 0006.Zigzag Conversion
  • 0007.Reverse Integer
  • 0008.String to Integer (atoi)
  • 0009.Palindrome Number
  • 0010.Regular Expression Matching
  • 0011.Container With Most Water
  • 0012.Integer to Roman
  • 0013.Roman to Integer
  • 0014.Longest Common Prefix
  • 0015.3Sum
  • 0016.3Sum Closest
  • 0017.Letter Combinations of a Phone Number
  • 0018.4Sum
  • 0019.Remove Nth Node From End of List
  • 0020.Valid Parentheses
  • 0021.Merge Two Sorted Lists
  • 0022.Generate Parentheses
  • 0023.Merge k Sorted Lists
  • 0024.Swap Nodes in Pairs
  • 0025.Reverse Nodes in k-Group
  • 0026.Remove Duplicates from Sorted Array
  • 0027.Remove Element
  • 0028.Find the Index of the First Occurrence in a String
  • 0029.Divide Two Integers
  • 0030.Substring with Concatenation of All Words
  • 0031.Next Permutation
  • 0032.Longest Valid Parentheses
  • 0033.Search in Rotated Sorted Array
  • 0034.Find First and Last Position of Element in Sorted Array
  • 0035.Search Insert Position
  • 0036.Valid Sudoku
  • 0037.Sudoku Solver
  • 0038.Count and Say
  • 0039.Combination Sum
  • 0040.Combination Sum II
  • 0041.First Missing Positive
  • 0042.Trapping Rain Water
  • 0043.Multiply Strings
  • 0044.Wildcard Matching
  • 0045.Jump Game II
  • 0046.Permutations
  • 0047.Permutations II
  • 0048.Rotate Image
  • 0049.Group Anagrams
  • 0050.Pow(x, n)
  • 0051.N-Queens
  • 0052.N-Queens II
  • 0053.Maximum Subarray
  • 0054.Spiral Matrix
  • 0055.Jump Game
  • 0056.Merge Intervals
  • 0057.Insert Interval
  • 0058.Length of Last Word
  • 0059.Spiral Matrix II
  • 0060.Permutation Sequence
  • 0061.Rotate List
  • 0062.Unique Paths
  • 0063.Unique Paths II
  • 0064.Minimum Path Sum
  • 0065.Valid Number
  • 0066.Plus One
  • 0067.Add Binary
  • 0068.Text Justification
  • 0069.Sqrt(x)
  • 0070.Climbing Stairs
  • 0071.Simplify Path
  • 0072.Edit Distance
  • 0073.Set Matrix Zeroes
  • 0074.Search a 2D Matrix
  • 0075.Sort Colors
  • 0076.Minimum Window Substring
  • 0077.Combinations
  • 0078.Subsets
  • 0079.Word Search
  • 0080.Remove Duplicates from Sorted Array II
  • 0081.Search in Rotated Sorted Array II
  • 0082.Remove Duplicates from Sorted List II
  • 0083.Remove Duplicates from Sorted List
  • 0084.Largest Rectangle in Histogram
  • 0085.Maximal Rectangle
  • 0086.Partition List
  • 0087.Scramble String
  • 0088.Merge Sorted Array
  • 0089.Gray Code
  • 0090.Subsets II
  • 0091.Decode Ways
  • 0092.Reverse Linked List II
  • 0093.Restore IP Addresses
  • 0094.Binary Tree Inorder Traversal
  • 0095.Unique Binary Search Trees II
  • 0096.Unique Binary Search Trees
  • 0097.Interleaving String
  • 0098.Validate Binary Search Tree
  • 0099.Recover Binary Search Tree

• 0100-0199

  • 0100.Same Tree
  • 0101.Symmetric Tree
  • 0102.Binary Tree Level Order Traversal
  • 0103.Binary Tree Zigzag Level Order Traversal
  • 0104.Maximum Depth of Binary Tree
  • 0105.Construct Binary Tree from Preorder and Inorder Traversal
  • 0106.Construct Binary Tree from Inorder and Postorder Traversal
  • 0107.Binary Tree Level Order Traversal II
  • 0108.Convert Sorted Array to Binary Search Tree
  • 0109.Convert Sorted List to Binary Search Tree
  • 0110.Balanced Binary Tree
  • 0111.Minimum Depth of Binary Tree
  • 0112.Path Sum
  • 0113.Path Sum II
  • 0114.Flatten Binary Tree to Linked List
  • 0115.Distinct Subsequences
  • 0116.Populating Next Right Pointers in Each Node
  • 0117.Populating Next Right Pointers in Each Node II
  • 0118.Pascal's Triangle
  • 0119.Pascal's Triangle II
  • 0120.Triangle
  • 0121.Best Time to Buy and Sell Stock
  • 0122.Best Time to Buy and Sell Stock II
  • 0123.Best Time to Buy and Sell Stock III
  • 0124.Binary Tree Maximum Path Sum
  • 0125.Valid Palindrome
  • 0126.Word Ladder II
  • 0127.Word Ladder
  • 0128.Longest Consecutive Sequence
  • 0129.Sum Root to Leaf Numbers
  • 0130.Surrounded Regions
  • 0131.Palindrome Partitioning
  • 0132.Palindrome Partitioning II
  • 0133.Clone Graph
  • 0134.Gas Station
  • 0135.Candy
  • 0136.Single Number
  • 0137.Single Number II
  • 0138.Copy List with Random Pointer
  • 0139.Word Break
  • 0140.Word Break II
  • 0141.Linked List Cycle
  • 0142.Linked List Cycle II
  • 0143.Reorder List
  • 0144.Binary Tree Preorder Traversal
  • 0145.Binary Tree Postorder Traversal
  • 0146.LRU Cache
  • 0147.Insertion Sort List
  • 0148.Sort List
  • 0149.Max Points on a Line
  • 0150.Evaluate Reverse Polish Notation
  • 0151.Reverse Words in a String
  • 0152.Maximum Product Subarray
  • 0153.Find Minimum in Rotated Sorted Array
  • 0154.Find Minimum in Rotated Sorted Array II
  • 0155.Min Stack
  • 0156.Binary Tree Upside Down
  • 0157.Read N Characters Given Read4
  • 0158.Read N Characters Given read4 II - Call Multiple Times
  • 0159.Longest Substring with At Most Two Distinct Characters
  • 0160.Intersection of Two Linked Lists
  • 0161.One Edit Distance
  • 0162.Find Peak Element
  • 0163.Missing Ranges
  • 0164.Maximum Gap
  • 0165.Compare Version Numbers
  • 0166.Fraction to Recurring Decimal
  • 0167.Two Sum II - Input Array Is Sorted
  • 0168.Excel Sheet Column Title
  • 0169.Majority Element
  • 0170.Two Sum III - Data structure design
  • 0171.Excel Sheet Column Number
  • 0172.Factorial Trailing Zeroes
  • 0173.Binary Search Tree Iterator
  • 0174.Dungeon Game
  • 0175.Combine Two Tables
  • 0176.Second Highest Salary
  • 0177.Nth Highest Salary
  • 0178.Rank Scores
  • 0179.Largest Number
  • 0180.Consecutive Numbers
  • 0181.Employees Earning More Than Their Managers
  • 0182.Duplicate Emails
  • 0183.Customers Who Never Order
  • 0184.Department Highest Salary
  • 0185.Department Top Three Salaries
  • 0186.Reverse Words in a String II
  • 0187.Repeated DNA Sequences
  • 0188.Best Time to Buy and Sell Stock IV
  • 0189.Rotate Array
  • 0190.Reverse Bits
  • 0191.Number of 1 Bits
  • 0192.Word Frequency
  • 0193.Valid Phone Numbers
  • 0194.Transpose File
  • 0195.Tenth Line
  • 0196.Delete Duplicate Emails
  • 0197.Rising Temperature
  • 0198.House Robber
  • 0199.Binary Tree Right Side View

• 0200-0299

  • 0200.Number of Islands
  • 0201.Bitwise AND of Numbers Range
  • 0202.Happy Number
  • 0203.Remove Linked List Elements
  • 0204.Count Primes
  • 0205.Isomorphic Strings
  • 0206.Reverse Linked List
  • 0207.Course Schedule
  • 0208.Implement Trie (Prefix Tree)
  • 0209.Minimum Size Subarray Sum
  • 0210.Course Schedule II
  • 0211.Design Add and Search Words Data Structure
  • 0212.Word Search II
  • 0213.House Robber II
  • 0214.Shortest Palindrome
  • 0215.Kth Largest Element in an Array
  • 0216.Combination Sum III
  • 0217.Contains Duplicate
  • 0218.The Skyline Problem
  • 0219.Contains Duplicate II
  • 0220.Contains Duplicate III
  • 0221.Maximal Square
  • 0222.Count Complete Tree Nodes
  • 0223.Rectangle Area
  • 0224.Basic Calculator
  • 0225.Implement Stack using Queues
  • 0226.Invert Binary Tree
  • 0227.Basic Calculator II
  • 0228.Summary Ranges
  • 0229.Majority Element II
  • 0230.Kth Smallest Element in a BST
  • 0231.Power of Two
  • 0232.Implement Queue using Stacks
  • 0233.Number of Digit One
  • 0234.Palindrome Linked List
  • 0235.Lowest Common Ancestor of a Binary Search Tree
  • 0236.Lowest Common Ancestor of a Binary Tree
  • 0237.Delete Node in a Linked List
  • 0238.Product of Array Except Self
  • 0239.Sliding Window Maximum
  • 0240.Search a 2D Matrix II
  • 0241.Different Ways to Add Parentheses
  • 0242.Valid Anagram
  • 0243.Shortest Word Distance
  • 0244.Shortest Word Distance II
  • 0245.Shortest Word Distance III
  • 0246.Strobogrammatic Number
  • 0247.Strobogrammatic Number II
  • 0248.Strobogrammatic Number III
  • 0249.Group Shifted Strings
  • 0250.Count Univalue Subtrees
  • 0251.Flatten 2D Vector
  • 0252.Meeting Rooms
  • 0253.Meeting Rooms II
  • 0254.Factor Combinations
  • 0255.Verify Preorder Sequence in Binary Search Tree
  • 0256.Paint House
  • 0257.Binary Tree Paths
  • 0258.Add Digits
  • 0259.3Sum Smaller
  • 0260.Single Number III
  • 0261.Graph Valid Tree
  • 0262.Trips and Users
  • 0263.Ugly Number
  • 0264.Ugly Number II
  • 0265.Paint House II
  • 0266.Palindrome Permutation
  • 0267.Palindrome Permutation II
  • 0268.Missing Number
  • 0269.Alien Dictionary
  • 0270.Closest Binary Search Tree Value
  • 0271.Encode and Decode Strings
  • 0272.Closest Binary Search Tree Value II
  • 0273.Integer to English Words
  • 0274.H-Index
  • 0275.H-Index II
  • 0276.Paint Fence
  • 0277.Find the Celebrity
  • 0278.First Bad Version
  • 0279.Perfect Squares
  • 0280.Wiggle Sort
  • 0281.Zigzag Iterator
  • 0282.Expression Add Operators
  • 0283.Move Zeroes
  • 0284.Peeking Iterator
  • 0285.Inorder Successor in BST
  • 0286.Walls and Gates
  • 0287.Find the Duplicate Number
  • 0288.Unique Word Abbreviation
  • 0289.Game of Life
  • 0290.Word Pattern
  • 0291.Word Pattern II
  • 0292.Nim Game
  • 0293.Flip Game
  • 0294.Flip Game II
  • 0295.Find Median from Data Stream
  • 0296.Best Meeting Point
  • 0297.Serialize and Deserialize Binary Tree
  • 0298.Binary Tree Longest Consecutive Sequence
  • 0299.Bulls and Cows

• 0300-0399

  • 0300.Longest Increasing Subsequence
  • 0301.Remove Invalid Parentheses
  • 0302.Smallest Rectangle Enclosing Black Pixels
  • 0303.Range Sum Query - Immutable
  • 0304.Range Sum Query 2D - Immutable
  • 0305.Number of Islands II
  • 0306.Additive Number
  • 0307.Range Sum Query - Mutable
  • 0308.Range Sum Query 2D - Mutable
  • 0309.Best Time to Buy and Sell Stock with Cooldown
  • 0310.Minimum Height Trees
  • 0311.Sparse Matrix Multiplication
  • 0312.Burst Balloons
  • 0313.Super Ugly Number
  • 0314.Binary Tree Vertical Order Traversal
  • 0315.Count of Smaller Numbers After Self
  • 0316.Remove Duplicate Letters
  • 0317.Shortest Distance from All Buildings
  • 0318.Maximum Product of Word Lengths
  • 0319.Bulb Switcher
  • 0320.Generalized Abbreviation
  • 0321.Create Maximum Number
  • 0322.Coin Change
  • 0323.Number of Connected Components in an Undirected Graph
  • 0324.Wiggle Sort II
  • 0325.Maximum Size Subarray Sum Equals k
  • 0326.Power of Three
  • 0327.Count of Range Sum
  • 0328.Odd Even Linked List
  • 0329.Longest Increasing Path in a Matrix
  • 0330.Patching Array
  • 0331.Verify Preorder Serialization of a Binary Tree
  • 0332.Reconstruct Itinerary
  • 0333.Largest BST Subtree
  • 0334.Increasing Triplet Subsequence
  • 0335.Self Crossing
  • 0336.Palindrome Pairs
  • 0337.House Robber III
  • 0338.Counting Bits
  • 0339.Nested List Weight Sum
  • 0340.Longest Substring with At Most K Distinct Characters
  • 0341.Flatten Nested List Iterator
  • 0342.Power of Four
  • 0343.Integer Break
  • 0344.Reverse String
  • 0345.Reverse Vowels of a String
  • 0346.Moving Average from Data Stream
  • 0347.Top K Frequent Elements
  • 0348.Design Tic-Tac-Toe
  • 0349.Intersection of Two Arrays
  • 0350.Intersection of Two Arrays II
  • 0351.Android Unlock Patterns
  • 0352.Data Stream as Disjoint Intervals
  • 0353.Design Snake Game
  • 0354.Russian Doll Envelopes
  • 0355.Design Twitter
  • 0356.Line Reflection
  • 0357.Count Numbers with Unique Digits
  • 0358.Rearrange String k Distance Apart
  • 0359.Logger Rate Limiter
  • 0360.Sort Transformed Array
  • 0361.Bomb Enemy
  • 0362.Design Hit Counter
  • 0363.Max Sum of Rectangle No Larger Than K
  • 0364.Nested List Weight Sum II
  • 0365.Water and Jug Problem
  • 0366.Find Leaves of Binary Tree
  • 0367.Valid Perfect Square
  • 0368.Largest Divisible Subset
  • 0369.Plus One Linked List
  • 0370.Range Addition
  • 0371.Sum of Two Integers
  • 0372.Super Pow
  • 0373.Find K Pairs with Smallest Sums
  • 0374.Guess Number Higher or Lower
  • 0375.Guess Number Higher or Lower II
  • 0376.Wiggle Subsequence
  • 0377.Combination Sum IV
  • 0378.Kth Smallest Element in a Sorted Matrix
  • 0379.Design Phone Directory
  • 0380.Insert Delete GetRandom O(1)
  • 0381.Insert Delete GetRandom O(1) - Duplicates allowed
  • 0382.Linked List Random Node
  • 0383.Ransom Note
  • 0384.Shuffle an Array
  • 0385.Mini Parser
  • 0386.Lexicographical Numbers
  • 0387.First Unique Character in a String
  • 0388.Longest Absolute File Path
  • 0389.Find the Difference
  • 0390.Elimination Game
  • 0391.Perfect Rectangle
  • 0392.Is Subsequence
  • 0393.UTF-8 Validation
  • 0394.Decode String
  • 0395.Longest Substring with At Least K Repeating Characters
  • 0396.Rotate Function
  • 0397.Integer Replacement
  • 0398.Random Pick Index
  • 0399.Evaluate Division

• 0400-0499

  • 0400.Nth Digit
  • 0401.Binary Watch
  • 0402.Remove K Digits
  • 0403.Frog Jump
  • 0404.Sum of Left Leaves
  • 0405.Convert a Number to Hexadecimal
  • 0406.Queue Reconstruction by Height
  • 0407.Trapping Rain Water II
  • 0408.Valid Word Abbreviation
  • 0409.Longest Palindrome
  • 0410.Split Array Largest Sum
  • 0411.Minimum Unique Word Abbreviation
  • 0412.Fizz Buzz
  • 0413.Arithmetic Slices
  • 0414.Third Maximum Number
  • 0415.Add Strings
  • 0416.Partition Equal Subset Sum
  • 0417.Pacific Atlantic Water Flow
  • 0418.Sentence Screen Fitting
  • 0419.Battleships in a Board
  • 0420.Strong Password Checker
  • 0421.Maximum XOR of Two Numbers in an Array
  • 0422.Valid Word Square
  • 0423.Reconstruct Original Digits from English
  • 0424.Longest Repeating Character Replacement
  • 0425.Word Squares
  • 0426.Convert Binary Search Tree to Sorted Doubly Linked List
  • 0427.Construct Quad Tree
  • 0428.Serialize and Deserialize N-ary Tree
  • 0429.N-ary Tree Level Order Traversal
  • 0430.Flatten a Multilevel Doubly Linked List
  • 0431.Encode N-ary Tree to Binary Tree
  • 0432.All O one Data Structure
  • 0433.Minimum Genetic Mutation
  • 0434.Number of Segments in a String
  • 0435.Non-overlapping Intervals
  • 0436.Find Right Interval
  • 0437.Path Sum III
  • 0438.Find All Anagrams in a String
  • 0439.Ternary Expression Parser
  • 0440.K-th Smallest in Lexicographical Order
  • 0441.Arranging Coins
  • 0442.Find All Duplicates in an Array
  • 0443.String Compression
  • 0444.Sequence Reconstruction
  • 0445.Add Two Numbers II
  • 0446.Arithmetic Slices II - Subsequence
  • 0447.Number of Boomerangs
  • 0448.Find All Numbers Disappeared in an Array
  • 0449.Serialize and Deserialize BST
  • 0450.Delete Node in a BST
  • 0451.Sort Characters By Frequency
  • 0452.Minimum Number of Arrows to Burst Balloons
  • 0453.Minimum Moves to Equal Array Elements
  • 0454.4Sum II
  • 0455.Assign Cookies
  • 0456.132 Pattern
  • 0457.Circular Array Loop
  • 0458.Poor Pigs
  • 0459.Repeated Substring Pattern
  • 0460.LFU Cache
  • 0461.Hamming Distance
  • 0462.Minimum Moves to Equal Array Elements II
  • 0463.Island Perimeter
  • 0464.Can I Win
  • 0465.Optimal Account Balancing
  • 0466.Count The Repetitions
  • 0467.Unique Substrings in Wraparound String
  • 0468.Validate IP Address
  • 0469.Convex Polygon
  • 0470.Implement Rand10() Using Rand7()
  • 0471.Encode String with Shortest Length
  • 0472.Concatenated Words
  • 0473.Matchsticks to Square
  • 0474.Ones and Zeroes
  • 0475.Heaters
  • 0476.Number Complement
  • 0477.Total Hamming Distance
  • 0478.Generate Random Point in a Circle
  • 0479.Largest Palindrome Product
  • 0480.Sliding Window Median
  • 0481.Magical String
  • 0482.License Key Formatting
  • 0483.Smallest Good Base
  • 0484.Find Permutation
  • 0485.Max Consecutive Ones
  • 0486.Predict the Winner
  • 0487.Max Consecutive Ones II
  • 0488.Zuma Game
  • 0489.Robot Room Cleaner
  • 0490.The Maze
  • 0491.Increasing Subsequences
  • 0492.Construct the Rectangle
  • 0493.Reverse Pairs
  • 0494.Target Sum
  • 0495.Teemo Attacking
  • 0496.Next Greater Element I
  • 0497.Random Point in Non-overlapping Rectangles
  • 0498.Diagonal Traverse
  • 0499.The Maze III

• 0500-0599

  • 0500.Keyboard Row
  • 0501.Find Mode in Binary Search Tree
  • 0502.IPO
  • 0503.Next Greater Element II
  • 0504.Base 7
  • 0505.The Maze II
  • 0506.Relative Ranks
  • 0507.Perfect Number
  • 0508.Most Frequent Subtree Sum
  • 0509.Fibonacci Number
  • 0510.Inorder Successor in BST II
  • 0511.Game Play Analysis I
  • 0512.Game Play Analysis II
  • 0513.Find Bottom Left Tree Value
  • 0514.Freedom Trail
  • 0515.Find Largest Value in Each Tree Row
  • 0516.Longest Palindromic Subsequence
  • 0517.Super Washing Machines
  • 0518.Coin Change II
  • 0519.Random Flip Matrix
  • 0520.Detect Capital
  • 0521.Longest Uncommon Subsequence I
  • 0522.Longest Uncommon Subsequence II
  • 0523.Continuous Subarray Sum
  • 0524.Longest Word in Dictionary through Deleting
  • 0525.Contiguous Array
  • 0526.Beautiful Arrangement
  • 0527.Word Abbreviation
  • 0528.Random Pick with Weight
  • 0529.Minesweeper
  • 0530.Minimum Absolute Difference in BST
  • 0531.Lonely Pixel I
  • 0532.K-diff Pairs in an Array
  • 0533.Lonely Pixel II
  • 0534.Game Play Analysis III
  • 0535.Encode and Decode TinyURL
  • 0536.Construct Binary Tree from String
  • 0537.Complex Number Multiplication
  • 0538.Convert BST to Greater Tree
  • 0539.Minimum Time Difference
  • 0540.Single Element in a Sorted Array
  • 0541.Reverse String II
  • 0542.01 Matrix
  • 0543.Diameter of Binary Tree
  • 0544.Output Contest Matches
  • 0545.Boundary of Binary Tree
  • 0546.Remove Boxes
  • 0547.Number of Provinces
  • 0548.Split Array with Equal Sum
  • 0549.Binary Tree Longest Consecutive Sequence II
  • 0550.Game Play Analysis IV
  • 0551.Student Attendance Record I
  • 0552.Student Attendance Record II
  • 0553.Optimal Division
  • 0554.Brick Wall
  • 0555.Split Concatenated Strings
  • 0556.Next Greater Element III
  • 0557.Reverse Words in a String III
  • 0558.Logical OR of Two Binary Grids Represented as Quad-Trees
  • 0559.Maximum Depth of N-ary Tree
  • 0560.Subarray Sum Equals K
  • 0561.Array Partition
  • 0562.Longest Line of Consecutive One in Matrix
  • 0563.Binary Tree Tilt
  • 0564.Find the Closest Palindrome
  • 0565.Array Nesting
  • 0566.Reshape the Matrix
  • 0567.Permutation in String
  • 0568.Maximum Vacation Days
  • 0569.Median Employee Salary
  • 0570.Managers with at Least 5 Direct Reports
  • 0571.Find Median Given Frequency of Numbers
  • 0572.Subtree of Another Tree
  • 0573.Squirrel Simulation
  • 0574.Winning Candidate
  • 0575.Distribute Candies
  • 0576.Out of Boundary Paths
  • 0577.Employee Bonus
  • 0578.Get Highest Answer Rate Question
  • 0579.Find Cumulative Salary of an Employee
  • 0580.Count Student Number in Departments
  • 0581.Shortest Unsorted Continuous Subarray
  • 0582.Kill Process
  • 0583.Delete Operation for Two Strings
  • 0584.Find Customer Referee
  • 0585.Investments in 2016
  • 0586.Customer Placing the Largest Number of Orders
  • 0587.Erect the Fence
  • 0588.Design In-Memory File System
  • 0589.N-ary Tree Preorder Traversal
  • 0590.N-ary Tree Postorder Traversal
  • 0591.Tag Validator
  • 0592.Fraction Addition and Subtraction
  • 0593.Valid Square
  • 0594.Longest Harmonious Subsequence
  • 0595.Big Countries
  • 0596.Classes More Than 5 Students
  • 0597.Friend Requests I Overall Acceptance Rate
  • 0598.Range Addition II
  • 0599.Minimum Index Sum of Two Lists

• 0600-0699

  • 0600.Non-negative Integers without Consecutive Ones
  • 0601.Human Traffic of Stadium
  • 0602.Friend Requests II Who Has the Most Friends
  • 0603.Consecutive Available Seats
  • 0604.Design Compressed String Iterator
  • 0605.Can Place Flowers
  • 0606.Construct String from Binary Tree
  • 0607.Sales Person
  • 0608.Tree Node
  • 0609.Find Duplicate File in System
  • 0610.Triangle Judgement
  • 0611.Valid Triangle Number
  • 0612.Shortest Distance in a Plane
  • 0613.Shortest Distance in a Line
  • 0614.Second Degree Follower
  • 0615.Average Salary Departments VS Company
  • 0616.Add Bold Tag in String
  • 0617.Merge Two Binary Trees
  • 0618.Students Report By Geography
  • 0619.Biggest Single Number
  • 0620.Not Boring Movies
  • 0621.Task Scheduler
  • 0622.Design Circular Queue
  • 0623.Add One Row to Tree
  • 0624.Maximum Distance in Arrays
  • 0625.Minimum Factorization
  • 0626.Exchange Seats
  • 0627.Swap Salary
  • 0628.Maximum Product of Three Numbers
  • 0629.K Inverse Pairs Array
  • 0630.Course Schedule III
  • 0631.Design Excel Sum Formula
  • 0632.Smallest Range Covering Elements from K Lists
  • 0633.Sum of Square Numbers
  • 0634.Find the Derangement of An Array
  • 0635.Design Log Storage System
  • 0636.Exclusive Time of Functions
  • 0637.Average of Levels in Binary Tree
  • 0638.Shopping Offers
  • 0639.Decode Ways II
  • 0640.Solve the Equation
  • 0641.Design Circular Deque
  • 0642.Design Search Autocomplete System
  • 0643.Maximum Average Subarray I
  • 0644.Maximum Average Subarray II
  • 0645.Set Mismatch
  • 0646.Maximum Length of Pair Chain
  • 0647.Palindromic Substrings
  • 0648.Replace Words
  • 0649.Dota2 Senate
  • 0650.2 Keys Keyboard
  • 0651.4 Keys Keyboard
  • 0652.Find Duplicate Subtrees
  • 0653.Two Sum IV - Input is a BST
  • 0654.Maximum Binary Tree
  • 0655.Print Binary Tree
  • 0656.Coin Path
  • 0657.Robot Return to Origin
  • 0658.Find K Closest Elements
  • 0659.Split Array into Consecutive Subsequences
  • 0660.Remove 9
  • 0661.Image Smoother
  • 0662.Maximum Width of Binary Tree
  • 0663.Equal Tree Partition
  • 0664.Strange Printer
  • 0665.Non-decreasing Array
  • 0666.Path Sum IV
  • 0667.Beautiful Arrangement II
  • 0668.Kth Smallest Number in Multiplication Table
  • 0669.Trim a Binary Search Tree
  • 0670.Maximum Swap
  • 0671.Second Minimum Node In a Binary Tree
  • 0672.Bulb Switcher II
  • 0673.Number of Longest Increasing Subsequence
  • 0674.Longest Continuous Increasing Subsequence
  • 0675.Cut Off Trees for Golf Event
  • 0676.Implement Magic Dictionary
  • 0677.Map Sum Pairs
  • 0678.Valid Parenthesis String
  • 0679.24 Game
  • 0680.Valid Palindrome II
  • 0681.Next Closest Time
  • 0682.Baseball Game
  • 0683.K Empty Slots
  • 0684.Redundant Connection
  • 0685.Redundant Connection II
  • 0686.Repeated String Match
  • 0687.Longest Univalue Path
  • 0688.Knight Probability in Chessboard
  • 0689.Maximum Sum of 3 Non-Overlapping Subarrays
  • 0690.Employee Importance
  • 0691.Stickers to Spell Word
  • 0692.Top K Frequent Words
  • 0693.Binary Number with Alternating Bits
  • 0694.Number of Distinct Islands
  • 0695.Max Area of Island
  • 0696.Count Binary Substrings
  • 0697.Degree of an Array
  • 0698.Partition to K Equal Sum Subsets
  • 0699.Falling Squares

• 0700-0799

  • 0700.Search in a Binary Search Tree
  • 0701.Insert into a Binary Search Tree
  • 0702.Search in a Sorted Array of Unknown Size
  • 0703.Kth Largest Element in a Stream
  • 0704.Binary Search
  • 0705.Design HashSet
  • 0706.Design HashMap
  • 0707.Design Linked List
  • 0708.Insert into a Sorted Circular Linked List
  • 0709.To Lower Case
  • 0710.Random Pick with Blacklist
  • 0711.Number of Distinct Islands II
  • 0712.Minimum ASCII Delete Sum for Two Strings
  • 0713.Subarray Product Less Than K
  • 0714.Best Time to Buy and Sell Stock with Transaction Fee
  • 0715.Range Module
  • 0716.Max Stack
  • 0717.1-bit and 2-bit Characters
  • 0718.Maximum Length of Repeated Subarray
  • 0719.Find K-th Smallest Pair Distance
  • 0720.Longest Word in Dictionary
  • 0721.Accounts Merge
  • 0722.Remove Comments
  • 0723.Candy Crush
  • 0724.Find Pivot Index
  • 0725.Split Linked List in Parts
  • 0726.Number of Atoms
  • 0727.Minimum Window Subsequence
  • 0728.Self Dividing Numbers
  • 0729.My Calendar I
  • 0730.Count Different Palindromic Subsequences
  • 0731.My Calendar II
  • 0732.My Calendar III
  • 0733.Flood Fill
  • 0734.Sentence Similarity
  • 0735.Asteroid Collision
  • 0736.Parse Lisp Expression
  • 0737.Sentence Similarity II
  • 0738.Monotone Increasing Digits
  • 0739.Daily Temperatures
  • 0740.Delete and Earn
  • 0741.Cherry Pickup
  • 0742.Closest Leaf in a Binary Tree
  • 0743.Network Delay Time
  • 0744.Find Smallest Letter Greater Than Target
  • 0745.Prefix and Suffix Search
  • 0746.Min Cost Climbing Stairs
  • 0747.Largest Number At Least Twice of Others
  • 0748.Shortest Completing Word
  • 0749.Contain Virus
  • 0750.Number Of Corner Rectangles
  • 0751.IP to CIDR
  • 0752.Open the Lock
  • 0753.Cracking the Safe
  • 0754.Reach a Number
  • 0755.Pour Water
  • 0756.Pyramid Transition Matrix
  • 0757.Set Intersection Size At Least Two
  • 0758.Bold Words in String
  • 0759.Employee Free Time
  • 0760.Find Anagram Mappings
  • 0761.Special Binary String
  • 0762.Prime Number of Set Bits in Binary Representation
  • 0763.Partition Labels
  • 0764.Largest Plus Sign
  • 0765.Couples Holding Hands
  • 0766.Toeplitz Matrix
  • 0767.Reorganize String
  • 0768.Max Chunks To Make Sorted II
  • 0769.Max Chunks To Make Sorted
  • 0770.Basic Calculator IV
  • 0771.Jewels and Stones
  • 0772.Basic Calculator III
  • 0773.Sliding Puzzle
  • 0774.Minimize Max Distance to Gas Station
  • 0775.Global and Local Inversions
  • 0776.Split BST
  • 0777.Swap Adjacent in LR String
  • 0778.Swim in Rising Water
  • 0779.K-th Symbol in Grammar
  • 0780.Reaching Points
  • 0781.Rabbits in Forest
  • 0782.Transform to Chessboard
  • 0783.Minimum Distance Between BST Nodes
  • 0784.Letter Case Permutation
  • 0785.Is Graph Bipartite
  • 0786.K-th Smallest Prime Fraction
  • 0787.Cheapest Flights Within K Stops
  • 0788.Rotated Digits
  • 0789.Escape The Ghosts
  • 0790.Domino and Tromino Tiling
  • 0791.Custom Sort String
  • 0792.Number of Matching Subsequences
  • 0793.Preimage Size of Factorial Zeroes Function
  • 0794.Valid Tic-Tac-Toe State
  • 0795.Number of Subarrays with Bounded Maximum
  • 0796.Rotate String
  • 0797.All Paths From Source to Target
  • 0798.Smallest Rotation with Highest Score
  • 0799.Champagne Tower

• 0800-0899

  • 0800.Similar RGB Color
  • 0801.Minimum Swaps To Make Sequences Increasing
  • 0802.Find Eventual Safe States
  • 0803.Bricks Falling When Hit
  • 0804.Unique Morse Code Words
  • 0805.Split Array With Same Average
  • 0806.Number of Lines To Write String
  • 0807.Max Increase to Keep City Skyline
  • 0808.Soup Servings
  • 0809.Expressive Words
  • 0810.Chalkboard XOR Game
  • 0811.Subdomain Visit Count
  • 0812.Largest Triangle Area
  • 0813.Largest Sum of Averages
  • 0814.Binary Tree Pruning
  • 0815.Bus Routes
  • 0816.Ambiguous Coordinates
  • 0817.Linked List Components
  • 0818.Race Car
  • 0819.Most Common Word
  • 0820.Short Encoding of Words
  • 0821.Shortest Distance to a Character
  • 0822.Card Flipping Game
  • 0823.Binary Trees With Factors
  • 0824.Goat Latin
  • 0825.Friends Of Appropriate Ages
  • 0826.Most Profit Assigning Work
  • 0827.Making A Large Island
  • 0828.Count Unique Characters of All Substrings of a Given String
  • 0829.Consecutive Numbers Sum
  • 0830.Positions of Large Groups
  • 0831.Masking Personal Information
  • 0832.Flipping an Image
  • 0833.Find And Replace in String
  • 0834.Sum of Distances in Tree
  • 0835.Image Overlap
  • 0836.Rectangle Overlap
  • 0837.New 21 Game
  • 0838.Push Dominoes
  • 0839.Similar String Groups
  • 0840.Magic Squares In Grid
  • 0841.Keys and Rooms
  • 0842.Split Array into Fibonacci Sequence
  • 0843.Guess the Word
  • 0844.Backspace String Compare
  • 0845.Longest Mountain in Array
  • 0846.Hand of Straights
  • 0847.Shortest Path Visiting All Nodes
  • 0848.Shifting Letters
  • 0849.Maximize Distance to Closest Person
  • 0850.Rectangle Area II
  • 0851.Loud and Rich
  • 0852.Peak Index in a Mountain Array
  • 0853.Car Fleet
  • 0854.K-Similar Strings
  • 0855.Exam Room
  • 0856.Score of Parentheses
  • 0857.Minimum Cost to Hire K Workers
  • 0858.Mirror Reflection
  • 0859.Buddy Strings
  • 0860.Lemonade Change
  • 0861.Score After Flipping Matrix
  • 0862.Shortest Subarray with Sum at Least K
  • 0863.All Nodes Distance K in Binary Tree
  • 0864.Shortest Path to Get All Keys
  • 0865.Smallest Subtree with all the Deepest Nodes
  • 0866.Prime Palindrome
  • 0867.Transpose Matrix
  • 0868.Binary Gap
  • 0869.Reordered Power of 2
  • 0870.Advantage Shuffle
  • 0871.Minimum Number of Refueling Stops
  • 0872.Leaf-Similar Trees
  • 0873.Length of Longest Fibonacci Subsequence
  • 0874.Walking Robot Simulation
  • 0875.Koko Eating Bananas
  • 0876.Middle of the Linked List
  • 0877.Stone Game
  • 0878.Nth Magical Number
  • 0879.Profitable Schemes
  • 0880.Decoded String at Index
  • 0881.Boats to Save People
  • 0882.Reachable Nodes In Subdivided Graph
  • 0883.Projection Area of 3D Shapes
  • 0884.Uncommon Words from Two Sentences
  • 0885.Spiral Matrix III
  • 0886.Possible Bipartition
  • 0887.Super Egg Drop
  • 0888.Fair Candy Swap
  • 0889.Construct Binary Tree from Preorder and Postorder Traversal
  • 0890.Find and Replace Pattern
  • 0891.Sum of Subsequence Widths
  • 0892.Surface Area of 3D Shapes
  • 0893.Groups of Special-Equivalent Strings
  • 0894.All Possible Full Binary Trees
  • 0895.Maximum Frequency Stack
  • 0896.Monotonic Array
  • 0897.Increasing Order Search Tree
  • 0898.Bitwise ORs of Subarrays
  • 0899.Orderly Queue

• 0900-0999

  • 0900.RLE Iterator
  • 0901.Online Stock Span
  • 0902.Numbers At Most N Given Digit Set
  • 0903.Valid Permutations for DI Sequence
  • 0904.Fruit Into Baskets
  • 0905.Sort Array By Parity
  • 0906.Super Palindromes
  • 0907.Sum of Subarray Minimums
  • 0908.Smallest Range I
  • 0909.Snakes and Ladders
  • 0910.Smallest Range II
  • 0911.Online Election
  • 0912.Sort an Array
  • 0913.Cat and Mouse
  • 0914.X of a Kind in a Deck of Cards
  • 0915.Partition Array into Disjoint Intervals
  • 0916.Word Subsets
  • 0917.Reverse Only Letters
  • 0918.Maximum Sum Circular Subarray
  • 0919.Complete Binary Tree Inserter
  • 0920.Number of Music Playlists
  • 0921.Minimum Add to Make Parentheses Valid
  • 0922.Sort Array By Parity II
  • 0923.3Sum With Multiplicity
  • 0924.Minimize Malware Spread
  • 0925.Long Pressed Name
  • 0926.Flip String to Monotone Increasing
  • 0927.Three Equal Parts
  • 0928.Minimize Malware Spread II
  • 0929.Unique Email Addresses
  • 0930.Binary Subarrays With Sum
  • 0931.Minimum Falling Path Sum
  • 0932.Beautiful Array
  • 0933.Number of Recent Calls
  • 0934.Shortest Bridge
  • 0935.Knight Dialer
  • 0936.Stamping The Sequence
  • 0937.Reorder Data in Log Files
  • 0938.Range Sum of BST
  • 0939.Minimum Area Rectangle
  • 0940.Distinct Subsequences II
  • 0941.Valid Mountain Array
  • 0942.DI String Match
  • 0943.Find the Shortest Superstring
  • 0944.Delete Columns to Make Sorted
  • 0945.Minimum Increment to Make Array Unique
  • 0946.Validate Stack Sequences
  • 0947.Most Stones Removed with Same Row or Column
  • 0948.Bag of Tokens
  • 0949.Largest Time for Given Digits
  • 0950.Reveal Cards In Increasing Order
  • 0951.Flip Equivalent Binary Trees
  • 0952.Largest Component Size by Common Factor
  • 0953.Verifying an Alien Dictionary
  • 0954.Array of Doubled Pairs
  • 0955.Delete Columns to Make Sorted II
  • 0956.Tallest Billboard
  • 0957.Prison Cells After N Days
  • 0958.Check Completeness of a Binary Tree
  • 0959.Regions Cut By Slashes
  • 0960.Delete Columns to Make Sorted III
  • 0961.N-Repeated Element in Size 2N Array
  • 0962.Maximum Width Ramp
  • 0963.Minimum Area Rectangle II
  • 0964.Least Operators to Express Number
  • 0965.Univalued Binary Tree
  • 0966.Vowel Spellchecker
  • 0967.Numbers With Same Consecutive Differences
  • 0968.Binary Tree Cameras
  • 0969.Pancake Sorting
  • 0970.Powerful Integers
  • 0971.Flip Binary Tree To Match Preorder Traversal
  • 0972.Equal Rational Numbers
  • 0973.K Closest Points to Origin
  • 0974.Subarray Sums Divisible by K
  • 0975.Odd Even Jump
  • 0976.Largest Perimeter Triangle
  • 0977.Squares of a Sorted Array
  • 0978.Longest Turbulent Subarray
  • 0979.Distribute Coins in Binary Tree
  • 0980.Unique Paths III
  • 0981.Time Based Key-Value Store
  • 0982.Triples with Bitwise AND Equal To Zero
  • 0983.Minimum Cost For Tickets
  • 0984.String Without AAA or BBB
  • 0985.Sum of Even Numbers After Queries
  • 0986.Interval List Intersections
  • 0987.Vertical Order Traversal of a Binary Tree
  • 0988.Smallest String Starting From Leaf
  • 0989.Add to Array-Form of Integer
  • 0990.Satisfiability of Equality Equations
  • 0991.Broken Calculator
  • 0992.Subarrays with K Different Integers
  • 0993.Cousins in Binary Tree
  • 0994.Rotting Oranges
  • 0995.Minimum Number of K Consecutive Bit Flips
  • 0996.Number of Squareful Arrays
  • 0997.Find the Town Judge
  • 0998.Maximum Binary Tree II
  • 0999.Available Captures for Rook

• 1000-1099

  • 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

• 1100-1199

  • 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

• 1200-1299

  • 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

• 1300-1399

  • 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 GainLoss
  • 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

• 1400-1499

  • 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

• 1500-1599

  • 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

• 1600-1699

  • 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

• 1700-1799

  • 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

• 1800-1899

  • 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

• 1900-1999

  • 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

• 2000-2099

  • 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 Buckets Required to Collect Rainwater from Houses
  • 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

• 2100-2199

  • 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

• 2200-2299

  • 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

• 2300-2399

  • 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

• 2400-2499

  • 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