Codeflu - Leetcode

Leetcode

Leetcode

Two Sum

May 2022

Provided solution is tested and available in Java, Python and C++. If you have a different solution, please tell us in the comment box.

Leetcode

Add Two Numbers

May 2022

Provided solution is tested and available in Java, Python and C++. If you have a different solution, please tell us in the comment box.

Leetcode

Longest Substring Without Repeating Characters

May 2022

Provided solution is tested and available in Java, Python and C++. If you have a different solution, please tell us in the comment box.

Leetcode

Median of Two Sorted Arrays

May 2022

Provided solution is tested and available in Java, Python and C++. If you have a different solution, please tell us in the comment box.

Leetcode

Longest Palindromic Substring

May 2022

Provided solution is tested and available in Java, Python and C++. If you have a different solution, please tell us in the comment box.

Leetcode

Zigzag Conversion

May 2022

Provided solution is tested and available in Java, Python and C++. If you have a different solution, please tell us in the comment box.

Leetcode

Reverse Integer

May 2022

Provided solution is tested and available in Java, Python and C++. If you have a different solution, please tell us in the comment box.

Leetcode

String to Integer (atoi)

May 2022

Provided solution is tested and available in Java, Python and C++. If you have a different solution, please tell us in the comment box.

Leetcode

Palindrome Number

May 2022

Provided solution is tested and available in Java, Python and C++. If you have a different solution, please tell us in the comment box.

Leetcode

Regular Expression Matching

May 2022

Provided solution is tested and available in Java, Python and C++. If you have a different solution, please tell us in the comment box.

Elsewhere

Search

Name
Two Sum
Add Two Numbers
Longest Substring Without Repeating Characters
Median of Two Sorted Arrays
Longest Palindromic Substring
Zigzag Conversion
Reverse Integer
String to Integer (atoi)
Palindrome Number
Regular Expression Matching
Container With Most Water
Integer to Roman
Roman to Integer
Longest Common Prefix
3Sum
3Sum Closest
Letter Combinations of a Phone Number
4Sum
Remove Nth Node From End of List
Valid Parentheses
Merge Two Sorted Lists
Generate Parentheses
Merge k Sorted Lists
Swap Nodes in Pairs
Reverse Nodes in k-Group
Remove Duplicates from Sorted Array
Remove Element
Implement strStr()
Divide Two Integers
Substring with Concatenation of All Words
Next Permutation
Longest Valid Parentheses
Search in Rotated Sorted Array
Find First and Last Position of Element in Sorted Array
Search Insert Position
Valid Sudoku
Sudoku Solver
Count and Say
Combination Sum
Combination Sum II
First Missing Positive
Trapping Rain Water
Multiply Strings
Wildcard Matching
Jump Game II
Permutations
Permutations II
Rotate Image
Group Anagrams
Pow(x, n)
N-Queens
N-Queens II
Maximum Subarray
Spiral Matrix
Jump Game
Merge Intervals
Insert Interval
Length of Last Word
Spiral Matrix II
Permutation Sequence
Rotate List
Unique Paths
Unique Paths II
Minimum Path Sum
Valid Number
Plus One
Add Binary
Text Justification
Sqrt(x)
Climbing Stairs
Simplify Path
Edit Distance
Set Matrix Zeroes
Search a 2D Matrix
Sort Colors
Minimum Window Substring
Combinations
Subsets
Word Search
Remove Duplicates from Sorted Array II
Search in Rotated Sorted Array II
Remove Duplicates from Sorted List II
Remove Duplicates from Sorted List
Largest Rectangle in Histogram
Maximal Rectangle
Partition List
Scramble String
Merge Sorted Array
Gray Code
Subsets II
Decode Ways
Reverse Linked List II
Restore IP Addresses
Binary Tree Inorder Traversal
Unique Binary Search Trees II
Unique Binary Search Trees
Interleaving String
Validate Binary Search Tree
Recover Binary Search Tree
Same Tree
Symmetric Tree
Binary Tree Level Order Traversal
Binary Tree Zigzag Level Order Traversal
Maximum Depth of Binary Tree
Construct Binary Tree from Preorder and Inorder Traversal
Construct Binary Tree from Inorder and Postorder Traversal
Binary Tree Level Order Traversal II
Convert Sorted Array to Binary Search Tree
Convert Sorted List to Binary Search Tree
Balanced Binary Tree
Minimum Depth of Binary Tree
Path Sum
Path Sum II
Flatten Binary Tree to Linked List
Distinct Subsequences
Populating Next Right Pointers in Each Node
Populating Next Right Pointers in Each Node II
Pascal's Triangle
Pascal's Triangle II
Triangle
Best Time to Buy and Sell Stock
Best Time to Buy and Sell Stock II
Best Time to Buy and Sell Stock III
Binary Tree Maximum Path Sum
Valid Palindrome
Word Ladder II
Word Ladder
Longest Consecutive Sequence
Sum Root to Leaf Numbers
Surrounded Regions
Palindrome Partitioning
Palindrome Partitioning II
Clone Graph
Gas Station
Candy
Single Number
Single Number II
Copy List with Random Pointer
Word Break
Word Break II
Linked List Cycle
Linked List Cycle II
Reorder List
Binary Tree Preorder Traversal
Binary Tree Postorder Traversal
LRU Cache
Insertion Sort List
Sort List
Max Points on a Line
Evaluate Reverse Polish Notation
Reverse Words in a String
Maximum Product Subarray
Find Minimum in Rotated Sorted Array
Find Minimum in Rotated Sorted Array II
Min Stack
Binary Tree Upside Down
Read N Characters Given Read4
Read N Characters Given read4 II - Call Multiple Times
Longest Substring with At Most Two Distinct Characters
Intersection of Two Linked Lists
One Edit Distance
Find Peak Element
Missing Ranges
Maximum Gap
Compare Version Numbers
Fraction to Recurring Decimal
Two Sum II - Input Array Is Sorted
Excel Sheet Column Title
Majority Element
Two Sum III - Data structure design
Excel Sheet Column Number
Factorial Trailing Zeroes
Binary Search Tree Iterator
Dungeon Game
Largest Number
Reverse Words in a String II
Repeated DNA Sequences
Best Time to Buy and Sell Stock IV
Rotate Array
Reverse Bits
Number of 1 Bits
House Robber
Binary Tree Right Side View
Number of Islands
Bitwise AND of Numbers Range
Happy Number
Remove Linked List Elements
Count Primes
Isomorphic Strings
Reverse Linked List
Course Schedule
Implement Trie (Prefix Tree)
Minimum Size Subarray Sum
Course Schedule II
Design Add and Search Words Data Structure
Word Search II
House Robber II
Shortest Palindrome
Kth Largest Element in an Array
Combination Sum III
Contains Duplicate
The Skyline Problem
Contains Duplicate II
Contains Duplicate III
Maximal Square
Count Complete Tree Nodes
Rectangle Area
Basic Calculator
Implement Stack using Queues
Invert Binary Tree
Basic Calculator II
Summary Ranges
Majority Element II
Kth Smallest Element in a BST
Power of Two
Implement Queue using Stacks
Number of Digit One
Palindrome Linked List
Lowest Common Ancestor of a Binary Search Tree
Lowest Common Ancestor of a Binary Tree
Delete Node in a Linked List
Product of Array Except Self
Sliding Window Maximum
Search a 2D Matrix II
Different Ways to Add Parentheses
Valid Anagram
Shortest Word Distance
Shortest Word Distance II
Shortest Word Distance III
Strobogrammatic Number
Strobogrammatic Number II
Strobogrammatic Number III
Group Shifted Strings
Count Univalue Subtrees
Flatten 2D Vector
Meeting Rooms
Meeting Rooms II
Factor Combinations
Verify Preorder Sequence in Binary Search Tree
Paint House
Binary Tree Paths
Add Digits
3Sum Smaller
Single Number III
Graph Valid Tree
Ugly Number
Ugly Number II
Paint House II
Palindrome Permutation
Palindrome Permutation II
Missing Number
Alien Dictionary
Closest Binary Search Tree Value
Encode and Decode Strings
Closest Binary Search Tree Value II
Integer to English Words
H-Index
H-Index II
Paint Fence
Find the Celebrity
First Bad Version
Perfect Squares
Wiggle Sort
Zigzag Iterator
Expression Add Operators
Move Zeroes
Peeking Iterator
Inorder Successor in BST
Walls and Gates
Find the Duplicate Number
Unique Word Abbreviation
Game of Life
Word Pattern
Word Pattern II
Nim Game
Flip Game
Flip Game II
Find Median from Data Stream
Best Meeting Point
Serialize and Deserialize Binary Tree
Binary Tree Longest Consecutive Sequence
Bulls and Cows
Longest Increasing Subsequence
Remove Invalid Parentheses
Smallest Rectangle Enclosing Black Pixels
Range Sum Query - Immutable
Range Sum Query 2D - Immutable
Number of Islands II
Additive Number
Range Sum Query - Mutable
Range Sum Query 2D - Mutable
Best Time to Buy and Sell Stock with Cooldown
Minimum Height Trees
Sparse Matrix Multiplication
Burst Balloons
Super Ugly Number
Binary Tree Vertical Order Traversal
Count of Smaller Numbers After Self
Remove Duplicate Letters
Shortest Distance from All Buildings
Maximum Product of Word Lengths
Bulb Switcher
Generalized Abbreviation
Create Maximum Number
Coin Change
Number of Connected Components in an Undirected Graph
Wiggle Sort II
Maximum Size Subarray Sum Equals k
Power of Three
Count of Range Sum
Odd Even Linked List
Longest Increasing Path in a Matrix
Patching Array
Verify Preorder Serialization of a Binary Tree
Reconstruct Itinerary
Largest BST Subtree
Increasing Triplet Subsequence
Self Crossing
Palindrome Pairs
House Robber III
Counting Bits
Nested List Weight Sum
Longest Substring with At Most K Distinct Characters
Flatten Nested List Iterator
Power of Four
Integer Break
Reverse String
Reverse Vowels of a String
Moving Average from Data Stream
Top K Frequent Elements
Design Tic-Tac-Toe
Intersection of Two Arrays
Intersection of Two Arrays II
Android Unlock Patterns
Data Stream as Disjoint Intervals
Design Snake Game
Russian Doll Envelopes
Design Twitter
Line Reflection
Count Numbers with Unique Digits
Rearrange String k Distance Apart
Logger Rate Limiter
Sort Transformed Array
Bomb Enemy
Design Hit Counter
Max Sum of Rectangle No Larger Than K
Nested List Weight Sum II
Water and Jug Problem
Find Leaves of Binary Tree
Valid Perfect Square
Largest Divisible Subset
Plus One Linked List
Range Addition
Sum of Two Integers
Super Pow
Find K Pairs with Smallest Sums
Guess Number Higher or Lower
Guess Number Higher or Lower II
Wiggle Subsequence
Combination Sum IV
Kth Smallest Element in a Sorted Matrix
Design Phone Directory
Insert Delete GetRandom O(1)
Insert Delete GetRandom O(1) - Duplicates allowed
Linked List Random Node
Ransom Note
Shuffle an Array
Mini Parser
Lexicographical Numbers
First Unique Character in a String
Longest Absolute File Path
Find the Difference
Elimination Game
Perfect Rectangle
Is Subsequence
UTF-8 Validation
Decode String
Longest Substring with At Least K Repeating Characters
Rotate Function
Integer Replacement
Random Pick Index
Evaluate Division
Nth Digit
Binary Watch
Remove K Digits
Frog Jump
Sum of Left Leaves
Convert a Number to Hexadecimal
Queue Reconstruction by Height
Trapping Rain Water II
Valid Word Abbreviation
Longest Palindrome
Split Array Largest Sum
Minimum Unique Word Abbreviation
Fizz Buzz
Arithmetic Slices
Third Maximum Number
Add Strings
Partition Equal Subset Sum
Pacific Atlantic Water Flow
Sentence Screen Fitting
Battleships in a Board
Strong Password Checker
Maximum XOR of Two Numbers in an Array
Valid Word Square
Reconstruct Original Digits from English
Longest Repeating Character Replacement
Word Squares
Convert Binary Search Tree to Sorted Doubly Linked List
Construct Quad Tree
Serialize and Deserialize N-ary Tree
N-ary Tree Level Order Traversal
Flatten a Multilevel Doubly Linked List
Encode N-ary Tree to Binary Tree
All O`one Data Structure
Minimum Genetic Mutation
Number of Segments in a String
Non-overlapping Intervals
Find Right Interval
Path Sum III
Find All Anagrams in a String
Ternary Expression Parser
K-th Smallest in Lexicographical Order
Arranging Coins
Find All Duplicates in an Array
String Compression
Sequence Reconstruction
Add Two Numbers II
Arithmetic Slices II - Subsequence
Number of Boomerangs
Find All Numbers Disappeared in an Array
Serialize and Deserialize BST
Delete Node in a BST
Sort Characters By Frequency
Minimum Number of Arrows to Burst Balloons
Minimum Moves to Equal Array Elements
4Sum II
Assign Cookies
132 Pattern
Circular Array Loop
Poor Pigs
Repeated Substring Pattern
LFU Cache
Hamming Distance
Minimum Moves to Equal Array Elements II
Island Perimeter
Can I Win
Optimal Account Balancing
Count The Repetitions
Unique Substrings in Wraparound String
Validate IP Address
Convex Polygon
Implement Rand10() Using Rand7()
Encode String with Shortest Length
Concatenated Words
Matchsticks to Square
Ones and Zeroes
Heaters
Number Complement
Total Hamming Distance
Generate Random Point in a Circle
Largest Palindrome Product
Sliding Window Median
Magical String
License Key Formatting
Smallest Good Base
Find Permutation
Max Consecutive Ones
Predict the Winner
Max Consecutive Ones II
Zuma Game
Robot Room Cleaner
The Maze
Increasing Subsequences
Construct the Rectangle
Reverse Pairs
Target Sum
Teemo Attacking
Next Greater Element I
Random Point in Non-overlapping Rectangles
Diagonal Traverse
The Maze III
Keyboard Row
Find Mode in Binary Search Tree
IPO
Next Greater Element II
Base 7
The Maze II
Relative Ranks
Perfect Number
Most Frequent Subtree Sum
Fibonacci Number
Inorder Successor in BST II
Find Bottom Left Tree Value
Freedom Trail
Find Largest Value in Each Tree Row
Longest Palindromic Subsequence
Super Washing Machines
Coin Change 2
Random Flip Matrix
Detect Capital
Longest Uncommon Subsequence I
Longest Uncommon Subsequence II
Continuous Subarray Sum
Longest Word in Dictionary through Deleting
Contiguous Array
Beautiful Arrangement
Word Abbreviation
Random Pick with Weight
Minesweeper
Minimum Absolute Difference in BST
Lonely Pixel I
K-diff Pairs in an Array
Lonely Pixel II
Encode and Decode TinyURL
Construct Binary Tree from String
Complex Number Multiplication
Convert BST to Greater Tree
Minimum Time Difference
Single Element in a Sorted Array
Reverse String II
01 Matrix
Diameter of Binary Tree
Output Contest Matches
Boundary of Binary Tree
Remove Boxes
Number of Provinces
Split Array with Equal Sum
Binary Tree Longest Consecutive Sequence II
Student Attendance Record I
Student Attendance Record II
Optimal Division
Brick Wall
Split Concatenated Strings
Next Greater Element III
Reverse Words in a String III
Logical OR of Two Binary Grids Represented as Quad-Trees
Maximum Depth of N-ary Tree
Subarray Sum Equals K
Array Partition I
Longest Line of Consecutive One in Matrix
Binary Tree Tilt
Find the Closest Palindrome
Array Nesting
Reshape the Matrix
Permutation in String
Maximum Vacation Days
Subtree of Another Tree
Squirrel Simulation
Distribute Candies
Out of Boundary Paths
Shortest Unsorted Continuous Subarray
Kill Process
Delete Operation for Two Strings
Erect the Fence
Design In-Memory File System
N-ary Tree Preorder Traversal
N-ary Tree Postorder Traversal
Tag Validator
Fraction Addition and Subtraction
Valid Square
Longest Harmonious Subsequence
Range Addition II
Minimum Index Sum of Two Lists
Non-negative Integers without Consecutive Ones
Design Compressed String Iterator
Can Place Flowers
Construct String from Binary Tree
Find Duplicate File in System
Valid Triangle Number
Add Bold Tag in String
Merge Two Binary Trees
Task Scheduler
Design Circular Queue
Add One Row to Tree
Maximum Distance in Arrays
Minimum Factorization
Maximum Product of Three Numbers
K Inverse Pairs Array
Course Schedule III
Design Excel Sum Formula
Smallest Range Covering Elements from K Lists
Sum of Square Numbers
Find the Derangement of An Array
Design Log Storage System
Exclusive Time of Functions
Average of Levels in Binary Tree
Shopping Offers
Decode Ways II
Solve the Equation
Design Circular Deque
Design Search Autocomplete System
Maximum Average Subarray I
Maximum Average Subarray II
Set Mismatch
Maximum Length of Pair Chain
Palindromic Substrings
Replace Words
Dota2 Senate
2 Keys Keyboard
4 Keys Keyboard
Find Duplicate Subtrees
Two Sum IV - Input is a BST
Maximum Binary Tree
Print Binary Tree
Coin Path
Robot Return to Origin
Find K Closest Elements
Split Array into Consecutive Subsequences
Remove 9
Image Smoother
Maximum Width of Binary Tree
Equal Tree Partition
Strange Printer
Non-decreasing Array
Path Sum IV
Beautiful Arrangement II
Kth Smallest Number in Multiplication Table
Trim a Binary Search Tree
Maximum Swap
Second Minimum Node In a Binary Tree
Bulb Switcher II
Number of Longest Increasing Subsequence
Longest Continuous Increasing Subsequence
Cut Off Trees for Golf Event
Implement Magic Dictionary
Map Sum Pairs
Valid Parenthesis String
24 Game
Valid Palindrome II
Next Closest Time
K Empty Slots
Redundant Connection
Redundant Connection II
Repeated String Match
Longest Univalue Path
Knight Probability in Chessboard
Maximum Sum of 3 Non-Overlapping Subarrays
Employee Importance
Stickers to Spell Word
Top K Frequent Words
Number of Distinct Islands
Max Area of Island
Count Binary Substrings
Degree of an Array
Partition to K Equal Sum Subsets
Falling Squares
Search in a Binary Search Tree
Insert into a Binary Search Tree
Search in a Sorted Array of Unknown Size
Kth Largest Element in a Stream
Design HashSet
Design HashMap
Design Linked List
Insert into a Sorted Circular Linked List
To Lower Case
Random Pick with Blacklist
Number of Distinct Islands II
Minimum ASCII Delete Sum for Two Strings
Subarray Product Less Than K
Best Time to Buy and Sell Stock with Transaction Fee
Range Module
1-bit and 2-bit Characters
Maximum Length of Repeated Subarray
Find K-th Smallest Pair Distance
Longest Word in Dictionary
Accounts Merge
Remove Comments
Candy Crush
Find Pivot Index
Split Linked List in Parts
Number of Atoms
Minimum Window Subsequence
Self Dividing Numbers
My Calendar I
Count Different Palindromic Subsequences
My Calendar II
My Calendar III
Flood Fill
Sentence Similarity
Asteroid Collision
Parse Lisp Expression
Sentence Similarity II
Monotone Increasing Digits
Daily Temperatures
Delete and Earn
Cherry Pickup
Closest Leaf in a Binary Tree
Network Delay Time
Find Smallest Letter Greater Than Target
Prefix and Suffix Search
Min Cost Climbing Stairs
Largest Number At Least Twice of Others
Shortest Completing Word
Contain Virus
Number Of Corner Rectangles
IP to CIDR
Open the Lock
Cracking the Safe
Reach a Number
Pour Water
Pyramid Transition Matrix
Set Intersection Size At Least Two
Bold Words in String
Employee Free Time
Special Binary String
Prime Number of Set Bits in Binary Representation
Partition Labels
Largest Plus Sign
Couples Holding Hands
Toeplitz Matrix
Reorganize String
Max Chunks To Make Sorted II
Max Chunks To Make Sorted
Basic Calculator IV
Jewels and Stones
Basic Calculator III
Sliding Puzzle
Minimize Max Distance to Gas Station
Global and Local Inversions
Split BST
Swap Adjacent in LR String
Swim in Rising Water
K-th Symbol in Grammar
Reaching Points
Rabbits in Forest
Transform to Chessboard
Minimum Distance Between BST Nodes
Letter Case Permutation
Is Graph Bipartite?
K-th Smallest Prime Fraction
Cheapest Flights Within K Stops
Rotated Digits
Escape The Ghosts
Domino and Tromino Tiling
Custom Sort String
Number of Matching Subsequences
Preimage Size of Factorial Zeroes Function
Valid Tic-Tac-Toe State
Number of Subarrays with Bounded Maximum
Rotate String
All Paths From Source to Target
Smallest Rotation with Highest Score
Champagne Tower
Minimum Swaps To Make Sequences Increasing
Find Eventual Safe States
Bricks Falling When Hit
Unique Morse Code Words
Split Array With Same Average
Max Increase to Keep City Skyline
Soup Servings
Expressive Words
Chalkboard XOR Game
Subdomain Visit Count
Largest Triangle Area
Largest Sum of Averages
Binary Tree Pruning
Bus Routes
Ambiguous Coordinates
Linked List Components
Race Car
Most Common Word
Short Encoding of Words
Card Flipping Game
Binary Trees With Factors
Goat Latin
Friends Of Appropriate Ages
Most Profit Assigning Work
Making A Large Island
Count Unique Characters of All Substrings of a Given String
Consecutive Numbers Sum
Positions of Large Groups
Masking Personal Information
Flipping an Image
Find And Replace in String
Sum of Distances in Tree
Image Overlap
Rectangle Overlap
New 21 Game
Push Dominoes
Similar String Groups
Magic Squares In Grid
Keys and Rooms
Split Array into Fibonacci Sequence
Guess the Word
Backspace String Compare
Longest Mountain in Array
Hand of Straights
Shortest Path Visiting All Nodes
Shifting Letters
Maximize Distance to Closest Person
Rectangle Area II
Loud and Rich
Peak Index in a Mountain Array
Car Fleet
K-Similar Strings
Exam Room
Score of Parentheses
Minimum Cost to Hire K Workers
Mirror Reflection
Buddy Strings
Score After Flipping Matrix
Shortest Subarray with Sum at Least K
All Nodes Distance K in Binary Tree
Shortest Path to Get All Keys
Smallest Subtree with all the Deepest Nodes
Prime Palindrome
Transpose Matrix
Binary Gap
Reordered Power of 2
Advantage Shuffle
Minimum Number of Refueling Stops
Leaf-Similar Trees
Length of Longest Fibonacci Subsequence
Walking Robot Simulation
Koko Eating Bananas
Middle of the Linked List
Stone Game
Nth Magical Number
Profitable Schemes
Decoded String at Index
Boats to Save People
Reachable Nodes In Subdivided Graph
Projection Area of 3D Shapes
Uncommon Words from Two Sentences
Spiral Matrix III
Possible Bipartition
Super Egg Drop
Fair Candy Swap
Construct Binary Tree from Preorder and Postorder Traversal
Find and Replace Pattern
Sum of Subsequence Widths
Surface Area of 3D Shapes
Groups of Special-Equivalent Strings
All Possible Full Binary Trees
Maximum Frequency Stack
Monotonic Array
Increasing Order Search Tree
Bitwise ORs of Subarrays
Orderly Queue
RLE Iterator
Online Stock Span
Numbers At Most N Given Digit Set
Valid Permutations for DI Sequence
Fruit Into Baskets
Sort Array By Parity
Super Palindromes
Sum of Subarray Minimums
Smallest Range I
Snakes and Ladders
Smallest Range II
Online Election
Sort an Array
Cat and Mouse
X of a Kind in a Deck of Cards
Partition Array into Disjoint Intervals
Word Subsets
Reverse Only Letters
Maximum Sum Circular Subarray
Complete Binary Tree Inserter
Number of Music Playlists
Minimum Add to Make Parentheses Valid
Sort Array By Parity II
3Sum With Multiplicity
Minimize Malware Spread
Long Pressed Name
Flip String to Monotone Increasing
Three Equal Parts
Minimize Malware Spread II
Unique Email Addresses
Binary Subarrays With Sum
Minimum Falling Path Sum
Beautiful Array
Shortest Bridge
Knight Dialer
Stamping The Sequence
Reorder Data in Log Files
Range Sum of BST
Minimum Area Rectangle
Distinct Subsequences II
Valid Mountain Array
DI String Match
Find the Shortest Superstring
Delete Columns to Make Sorted
Minimum Increment to Make Array Unique
Validate Stack Sequences
Most Stones Removed with Same Row or Column
Bag of Tokens
Largest Time for Given Digits
Reveal Cards In Increasing Order
Flip Equivalent Binary Trees
Largest Component Size by Common Factor
Verifying an Alien Dictionary
Array of Doubled Pairs
Delete Columns to Make Sorted II
Tallest Billboard
Prison Cells After N Days
Check Completeness of a Binary Tree
Regions Cut By Slashes
Delete Columns to Make Sorted III
N-Repeated Element in Size 2N Array
Maximum Width Ramp
Minimum Area Rectangle II
Least Operators to Express Number
Vowel Spellchecker
Numbers With Same Consecutive Differences
Binary Tree Cameras
Pancake Sorting
Powerful Integers
Flip Binary Tree To Match Preorder Traversal
Equal Rational Numbers
K Closest Points to Origin
Subarray Sums Divisible by K
Odd Even Jump
Largest Perimeter Triangle
Squares of a Sorted Array
Longest Turbulent Subarray
Distribute Coins in Binary Tree
Unique Paths III
Time Based Key-Value Store
Triples with Bitwise AND Equal To Zero
Minimum Cost For Tickets
String Without AAA or BBB
Sum of Even Numbers After Queries
Interval List Intersections
Vertical Order Traversal of a Binary Tree
Smallest String Starting From Leaf
Add to Array-Form of Integer
Satisfiability of Equality Equations
Broken Calculator
Subarrays with K Different Integers
Cousins in Binary Tree
Rotting Oranges
Minimum Number of K Consecutive Bit Flips
Number of Squareful Arrays
Find the Town Judge
Maximum Binary Tree II
Available Captures for Rook
Minimum Cost to Merge Stones
Grid Illumination
Find Common Characters
Check If Word Is Valid After Substitutions
Max Consecutive Ones III
Maximize Sum Of Array After K Negations
Clumsy Factorial
Minimum Domino Rotations For Equal Row
Construct Binary Search Tree from Preorder Traversal
Complement of Base 10 Integer
Pairs of Songs With Total Durations Divisible by 60
Capacity To Ship Packages Within D Days
Numbers With Repeated Digits
Partition Array Into Three Parts With Equal Sum
Best Sightseeing Pair
Smallest Integer Divisible by K
Binary String With Substrings Representing 1 To N
Convert to Base -2
Binary Prefix Divisible By 5
Next Greater Node In Linked List
Number of Enclaves
Camelcase Matching
Video Stitching
Divisor Game
Maximum Difference Between Node and Ancestor
Longest Arithmetic Subsequence
Recover a Tree From Preorder Traversal
Two City Scheduling
Maximum Sum of Two Non-Overlapping Subarrays
Stream of Characters
Moving Stones Until Consecutive
Coloring A Border
Uncrossed Lines
Escape a Large Maze
Valid Boomerang
Binary Search Tree to Greater Sum Tree
Minimum Score Triangulation of Polygon
Moving Stones Until Consecutive II
Robot Bounded In Circle
Flower Planting With No Adjacent
Partition Array for Maximum Sum
Longest Duplicate Substring
Remove All Adjacent Duplicates In String
Longest String Chain
Last Stone Weight II
Height Checker
Grumpy Bookstore Owner
Previous Permutation With One Swap
Distant Barcodes
Shortest Way to Form String
Campus Bikes
Minimize Rounding Error to Meet Target
All Paths from Source Lead to Destination
Missing Element in Sorted Array
Lexicographically Smallest Equivalent String
Longest Repeating Substring
Number of Valid Subarrays
Campus Bikes II
Digit Count in Range
Greatest Common Divisor of Strings
Flip Columns For Maximum Number of Equal Rows
Adding Two Negabinary Numbers
Number of Submatrices That Sum to Target
Occurrences After Bigram
Insufficient Nodes in Root to Leaf Paths
Smallest Subsequence of Distinct Characters
Confusing Number II
Duplicate Zeros
Largest Values From Labels
Shortest Path in Binary Matrix
Shortest Common Supersequence
Statistics from a Large Sample
Car Pooling
Find in Mountain Array
Brace Expansion II
Two Sum Less Than K
Path With Maximum Minimum Value
Distribute Candies to People
Path In Zigzag Labelled Binary Tree
Parsing A Boolean Expression
Defanging an IP Address
Corporate Flight Bookings
Delete Nodes And Return Forest
Print in Order
Maximum Average Subtree
Divide Array Into Increasing Sequences
Relative Sort Array
Lowest Common Ancestor of Deepest Leaves
Longest Well-Performing Interval
Smallest Sufficient Team
Number of Equivalent Domino Pairs
Minimum Cost Tree From Leaf Values
Maximum of Absolute Value Expression
Parallel Courses
Alphabet Board Path
Stone Game II
Longest Common Subsequence
Decrease Elements To Make Array Zigzag
Binary Tree Coloring Game
Snapshot Array
Longest Chunked Palindrome Decomposition
Minimum Swaps to Group All 1's Together
String Transforms Into Another String
Day of the Year
Number of Dice Rolls With Target Sum
Swap For Longest Repeated Character Substring
Online Majority Element In Subarray
Find Words That Can Be Formed by Characters
Last Substring in Lexicographical Order
Minimum Cost to Connect Sticks
Optimize Water Distribution in a Village
Invalid Transactions
Compare Strings by Frequency of the Smallest Character
Remove Zero Sum Consecutive Nodes from Linked List
Dinner Plate Stacks
Prime Arrangements
Can Make Palindrome from Substring
Number of Valid Words for Each Puzzle
Maximum Number of Ones
Distance Between Bus Stops
Day of the Week
Make Array Strictly Increasing
Maximum Number of Balloons
Critical Connections in a Network
Minimum Knight Moves
Minimum Time to Build Blocks
Minimum Absolute Difference
Ugly Number III
Smallest String With Swaps
Sort Items by Groups Respecting Dependencies
Design Skiplist
Unique Number of Occurrences
Get Equal Substrings Within Budget
Remove All Adjacent Duplicates in String II
Minimum Moves to Reach Target with Rotations
Intersection of Three Sorted Arrays
Valid Palindrome III
Minimum Cost to Move Chips to The Same Position
Longest Arithmetic Subsequence of Given Difference
Count Vowels Permutation
Split a String in Balanced Strings
Queens That Can Attack the King
Dice Roll Simulation
Maximum Equal Frequency
Airplane Seat Assignment Probability
Divide Chocolate
Check If It Is a Straight Line
Remove Sub-Folders from the Filesystem
Replace the Substring for Balanced String
Maximum Profit in Job Scheduling
Web Crawler
Find Positive Integer Solution for a Given Equation
Circular Permutation in Binary Representation
Tiling a Rectangle with the Fewest Squares
Web Crawler Multithreaded
Design A Leaderboard
Tree Diameter
Palindrome Removal
Count Number of Nice Subarrays
Minimum Remove to Make Valid Parentheses
Check If It Is a Good Array
Cells with Odd Values in a Matrix
Reconstruct a 2-Row Binary Matrix
Number of Closed Islands
Maximum Score Words Formed by Letters
Smallest Common Region
Handshakes That Don't Cross
Shift 2D Grid
Find Elements in a Contaminated Binary Tree
Greatest Sum Divisible by Three
Minimum Moves to Move a Box to Their Target Location
Print Immutable Linked List in Reverse
Minimum Time Visiting All Points
Count Servers that Communicate
Number of Ways to Stay in the Same Place After Some Steps
Delete Tree Nodes
Number of Ships in a Rectangle
Find Winner on a Tic Tac Toe Game
Number of Burgers with No Waste of Ingredients
Count Square Submatrices with All Ones
Palindrome Partitioning III
Subtract the Product and Sum of Digits of an Integer
Minimum Number of Flips to Convert Binary Matrix to Zero Matrix
Element Appearing More Than 25% In Sorted Array
Convert Binary Number in a Linked List to Integer
Maximum Side Length of a Square with Sum Less than or Equal to Threshold
Shortest Path in a Grid with Obstacles Elimination
Find Numbers with Even Number of Digits
Divide Array in Sets of K Consecutive Numbers
Replace Elements with Greatest Element on Right Side
Sum of Mutated Array Closest to Target
Deepest Leaves Sum
Find N Unique Integers Sum up to Zero
All Elements in Two Binary Search Trees
Jump Game III
Verbal Arithmetic Puzzle
Decrypt String from Alphabet to Integer Mapping
XOR Queries of a Subarray
Get Watched Videos by Your Friends
Decompress Run-Length Encoded List
Sum of Nodes with Even-Valued Grandparent
Convert Integer to the Sum of Two No-Zero Integers
Number of Operations to Make Network Connected
Maximum 69 Number
Minimum Number of Taps to Open to Water a Garden
Sort the Matrix Diagonally
Reverse Subarray To Maximize Array Value
Rank Transform of an Array
Filter Restaurants by Vegan-Friendly, Price and Distance
Minimum Difficulty of a Job Schedule
The K Weakest Rows in a Matrix
Reduce Array Size to The Half
Maximum Product of Splitted Binary Tree
Angle Between Hands of a Clock
Tweet Counts Per Frequency
Maximum Students Taking Exam
Count Negative Numbers in a Sorted Matrix
Maximum Number of Events That Can Be Attended
Sort Integers by The Number of 1 Bits
Count All Valid Pickup and Delivery Options
Validate Binary Tree Nodes
Closest Divisors
Largest Multiple of Three
Find the Longest Substring Containing Vowels in Even Counts
Maximum Sum BST in Binary Tree
Time Needed to Inform All Employees
Frog Position After T Seconds
Four Divisors
Check if There is a Valid Path in a Grid
Design Underground System
Circle and Rectangle Overlapping
Longest Happy String
Stone Game III
Number of Ways to Paint N × 3 Grid
Restore The Array
Maximum Points You Can Obtain from Cards
Diagonal Traverse II
Constrained Subsequence Sum
Leftmost Column with at Least a One
Number of Ways to Wear Different Hats to Each Other
Destination City
Check If All 1's Are at Least Length K Places Away
Longest Continuous Subarray With Absolute Diff Less Than or Equal to Limit
Find the Kth Smallest Sum of a Matrix With Sorted Rows
Build an Array With Stack Operations
Count Triplets That Can Form Two Arrays of Equal XOR
Minimum Time to Collect All Apples in a Tree
Number of Ways of Cutting a Pizza
Count Good Nodes in Binary Tree
Form Largest Integer With Digits That Add up to Target
Number of Students Doing Homework at a Given Time
Rearrange Words in a Sentence
People Whose List of Favorite Companies Is Not a Subset of Another List
Check If a Word Occurs As a Prefix of Any Word in a Sentence
Maximum Number of Vowels in a Substring of Given Length
Pseudo-Palindromic Paths in a Binary Tree
Max Dot Product of Two Subsequences
Cherry Pickup II
Reorder Routes to Make All Paths Lead to the City Zero
Find All The Lonely Nodes
Design Browser History
Paint House III
Find Two Non-overlapping Sub-arrays Each With Target Sum
Allocate Mailboxes
Kth Ancestor of a Tree Node
Clone Binary Tree With Random Pointer
Clone N-ary Tree
Parallel Courses II
Path Crossing
Check If Array Pairs Are Divisible by k
Number of Subsequences That Satisfy the Given Sum Condition
Max Value of Equation
Can Make Arithmetic Progression From Sequence
Last Moment Before All Ants Fall Out of a Plank
Count Submatrices With All Ones
Minimum Possible Integer After at Most K Adjacent Swaps On Digits
Range Sum of Sorted Subarray Sums
Minimum Difference Between Largest and Smallest Value in Three Moves
Stone Game IV
Number of Good Pairs
Number of Substrings With Only 1s
Path with Maximum Probability
Water Bottles
Number of Nodes in the Sub-Tree With the Same Label
Maximum Number of Non-Overlapping Substrings
Find a Value of a Mysterious Function Closest to Target
Count Odd Numbers in an Interval Range
Number of Sub-arrays With Odd Sum
Number of Good Ways to Split a String
Minimum Number of Increments on Subarrays to Form a Target Array
Shuffle String
Minimum Suffix Flips
Number of Good Leaf Nodes Pairs
String Compression II
Get the Maximum Score
Kth Missing Positive Number
Find Longest Awesome Substring
Minimum Cost to Cut a Stick
The Most Similar Path in a Graph
Detect Cycles in 2D Grid
Stone Game V
Number of Ways to Reorder Array to Get Same BST
Dot Product of Two Sparse Vectors
Count Unhappy Friends
Rearrange Spaces Between Words
Split a String Into the Max Number of Unique Substrings
Maximum Non Negative Product in a Matrix
Build Binary Expression Tree From Infix Expression
Crawler Log Folder
Maximum Profit of Operating a Centennial Wheel
Throne Inheritance
Maximum Number of Achievable Transfer Requests
Design Parking System
Maximum Number of Visible Points
Lexicographically Smallest String After Applying Operations
Best Team With No Conflicts
Path With Minimum Effort
Count Sorted Vowel Strings
Determine if Two Strings Are Close
Ways to Make a Fair Array
Change the Root of a Binary Tree
Minimum Number of Removals to Make Mountain Array
Lowest Common Ancestor of a Binary Tree IV
Longest Palindromic Subsequence II
Stone Game VI
Delivering Boxes from Storage to Ports
Stone Game VII
Maximum Height by Stacking Cuboids
Count Ways to Distribute Candies
Checking Existence of Edge Length Limited Paths
Average Waiting Time
Minimum Adjacent Swaps for K Consecutive Ones
Where Will the Ball Fall
Ways to Split Array Into Three Subarrays
Checking Existence of Edge Length Limited Paths II
Largest Submatrix With Rearrangements
Cat and Mouse II
Change Minimum Characters to Satisfy One of Three Conditions
Find Kth Largest XOR Coordinate Value
Building Boxes
Find Distance in a Binary Tree
Restore the Array From Adjacent Pairs
Can You Eat Your Favorite Candy on Your Favorite Day?
Palindrome Partitioning IV
Maximum Number of Events That Can Be Attended II
Check if Array Is Sorted and Rotated
Maximum Score From Removing Stones
Closest Subsequence Sum
Merge Strings Alternately
Minimum Number of Operations to Move All Balls to Each Box
Maximum Score from Performing Multiplication Operations
Maximize Palindrome Length From Subsequences
Sort Features by Popularity
Count Items Matching a Rule
Closest Dessert Cost
Equal Sum Arrays With Minimum Number of Operations
Car Fleet II
Shortest Path in a Hidden Grid
Find Nearest Point That Has the Same X or Y Coordinate
Check if Number is a Sum of Powers of Three
Sum of Beauty of All Substrings
Count Pairs Of Nodes
Check if Binary String Has at Most One Segment of Ones
Minimum Elements to Add to Form a Given Sum
Number of Restricted Paths From First to Last Node
Number of Orders in the Backlog
Maximum Value at a Given Index in a Bounded Array
Count Pairs With XOR in a Range
Implement Trie II (Prefix Tree)
Minimum Number of Operations to Reinitialize a Permutation
Evaluate the Bracket Pairs of a String
Maximize Number of Nice Divisors
Minimum Path Cost in a Hidden Grid
Sentence Similarity III
Count Nice Pairs in an Array
Maximum Number of Groups Getting Fresh Donuts
Truncate Sentence
Finding the Users Active Minutes
Minimum Absolute Sum Difference
Number of Different Subsequences GCDs
Maximum Number of Accepted Invitations
Sign of the Product of an Array
Find the Winner of the Circular Game
Minimum Sideway Jumps
Finding MK Average
Faulty Sensor
Minimum Operations to Make the Array Increasing
Queries on Number of Points Inside a Circle
Maximum XOR for Each Query
Check if the Sentence Is Pangram
Maximum Ice Cream Bars
Single-Threaded CPU
Find XOR Sum of All Pairs Bitwise AND
Remove Duplicates From an Unsorted Linked List
Sum of Digits in Base K
Frequency of the Most Frequent Element
Longest Substring Of All Vowels in Order
Maximum Building Height
Next Palindrome Using Same Digits
Replace All Digits with Characters
Seat Reservation Manager
Maximum Element After Decreasing and Rearranging
Closest Room
Minimum Distance to the Target Element
Splitting a String Into Descending Consecutive Values
Minimum Adjacent Swaps to Reach the Kth Smallest Number
Minimum Interval to Include Each Query
Maximum Distance Between a Pair of Values
Maximum Subarray Min-Product
Largest Color Value in a Directed Graph
Longest Word With All Prefixes
Sorting the Sentence
Incremental Memory Leak
Rotating the Box
Sum of Floored Pairs
Sum of All Subset XOR Totals
Minimum Number of Swaps to Make the Binary String Alternating
Finding Pairs With a Certain Sum
Number of Ways to Rearrange Sticks With K Sticks Visible
Product of Two Run-Length Encoded Arrays
Longer Contiguous Segments of Ones than Zeros
Minimum Speed to Arrive on Time
Jump Game VII
Stone Game VIII
Minimize Product Sum of Two Arrays
Substrings of Size Three with Distinct Characters
Minimize Maximum Pair Sum in Array
Minimum XOR Sum of Two Arrays
Maximum Value after Insertion
Process Tasks Using Servers
Minimum Skips to Arrive at Meeting On Time
Egg Drop With 2 Eggs and N Floors
Count Pairs in Two Arrays
Determine Whether Matrix Can Be Obtained By Rotation
Reduction Operations to Make the Array Elements Equal
Minimum Number of Flips to Make the Binary String Alternating
Minimum Space Wasted From Packaging
Cutting Ribbons
Check if All the Integers in a Range Are Covered
Find the Student that Will Replace the Chalk
Redistribute Characters to Make All Strings Equal
Maximum Number of Removable Characters
Merge Triplets to Form Target Triplet
The Earliest and Latest Rounds Where Players Compete
Find a Peak Element II
Depth of BST Given Insertion Order
Largest Odd Number in String
The Number of Full Rounds You Have Played
Count Sub Islands
Minimum Absolute Difference Queries
Remove One Element to Make the Array Strictly Increasing
Remove All Occurrences of a Substring
Maximum Alternating Subsequence Sum
Design Movie Rental System
Maximum Product Difference Between Two Pairs
Cyclically Rotating a Grid
Number of Wonderful Substrings
Count Ways to Build Rooms in an Ant Colony
Build Array from Permutation
Eliminate Maximum Number of Monsters
Count Good Numbers
Count Square Sum Triples
Nearest Exit from Entrance in Maze
Sum Game
Minimum Cost to Reach Destination in Time
Concatenation of Array
Unique Length-3 Palindromic Subsequences
Painting a Grid With Three Different Colors
Merge BSTs to Create Single BST
Maximum Number of Words You Can Type
Add Minimum Number of Rungs
Maximum Number of Points with Cost
Maximum Genetic Difference Query
Number of Visible People in a Queue
Delete Duplicate Folders in System
Count Number of Special Subsequences
Maximum Product of the Length of Two Palindromic Substrings
Find the Longest Valid Obstacle Course at Each Position
Last Day Where You Can Still Cross
Reverse Prefix of Word
Number of Pairs of Interchangeable Rectangles
Maximum Product of the Length of Two Palindromic Subsequences
Smallest Missing Genetic Value in Each Subtree
Subtree Removal Game with Fibonacci Tree
Count Number of Pairs With Absolute Difference K
Find Original Array From Doubled Array
Maximum Earnings From Taxi
Minimum Number of Operations to Make Array Continuous
Final Value of Variable After Performing Operations
Sum of Beauty in the Array
Detect Squares
Longest Subsequence Repeated k Times
Average Height of Buildings in Each Segment
Maximum Difference Between Increasing Elements
Grid Game
Check if Word Can Be Placed In Crossword
The Score of Students Solving Math Expression
Brightest Position on Street
Convert 1D Array Into 2D Array
Number of Pairs of Strings With Concatenation Equal to Target
Maximize the Confusion of an Exam
Maximum Number of Ways to Partition an Array
Find Missing Observations
Stone Game IX
Smallest K-Length Subsequence With Occurrences of a Letter
Count Subarrays With More Ones Than Zeros
Two Out of Three
Minimum Operations to Make a Uni-Value Grid
Stock Price Fluctuation
Partition Array Into Two Arrays to Minimize Sum Difference
Maximum Alternating Subarray Sum
Minimum Number of Moves to Seat Everyone
Remove Colored Pieces if Both Neighbors are the Same Color
The Time When the Network Becomes Idle
Kth Smallest Product of Two Sorted Arrays
Check if Numbers Are Ascending in a Sentence
Simple Bank System
Count Number of Maximum Bitwise-OR Subsets
Second Minimum Time to Reach Destination
Sort Linked List Already Sorted Using Absolute Values
Number of Valid Words in a Sentence
Next Greater Numerically Balanced Number
Count Nodes With the Highest Score
Parallel Courses III
Minimum Cost to Separate Sentence Into Rows
Kth Distinct String in an Array
Two Best Non-Overlapping Events
Plates Between Candles
Number of Valid Move Combinations On Chessboard
Smallest Index With Equal Value
Find the Minimum and Maximum Number of Nodes Between Critical Points
Minimum Operations to Convert Number
Check if an Original String Exists Given Two Encoded Strings
Number of Spaces Cleaning Robot Cleaned
Count Vowel Substrings of a String
Vowels of All Substrings
Minimized Maximum of Products Distributed to Any Store
Maximum Path Quality of a Graph
Number of Equal Count Substrings
Walking Robot Simulation II
Most Beautiful Item for Each Query
Maximum Number of Tasks You Can Assign
Time Needed to Buy Tickets
Reverse Nodes in Even Length Groups
Decode the Slanted Ciphertext
Process Restricted Friend Requests
Paths in Maze That Lead to Same Room
Watering Plants
Range Frequency Queries
Sum of k-Mirror Numbers
Substrings That Begin and End With the Same Letter
Count Common Words With One Occurrence
Minimum Number of Buckets Required to Collect Rainwater from Houses
Minimum Cost Homecoming of a Robot in a Grid
Count Fertile Pyramids in a Land
Find Target Indices After Sorting Array
K Radius Subarray Averages
Removing Minimum and Maximum From Array
Find All People With Secret
Minimum Cost to Reach City With Discounts
Finding 3-Digit Even Numbers
Delete the Middle Node of a Linked List
Step-By-Step Directions From a Binary Tree Node to Another
Valid Arrangement of Pairs
Subsequence of Size K With the Largest Even Sum
Find Subsequence of Length K With the Largest Sum
Find Good Days to Rob the Bank
Detonate the Maximum Bombs
Sequentially Ordinal Rank Tracker
Rings and Rods
Sum of Subarray Ranges
Watering Plants II
Maximum Fruits Harvested After at Most K Steps
Find First Palindromic String in the Array
Adding Spaces to a String
Number of Smooth Descent Periods of a Stock
Minimum Operations to Make the Array K-Increasing
Elements in Array After Removing and Replacing Elements
Maximum Number of Words Found in Sentences
Find All Possible Recipes from Given Supplies
Check if a Parentheses String Can Be Valid
Abbreviating the Product of a Range
A Number After a Double Reversal
Execution of All Suffix Instructions Staying in a Grid
Intervals Between Identical Elements
Recover the Original Array
Minimum Operations to Remove Adjacent Ones in Matrix
Check if All A's Appears Before All B's
Number of Laser Beams in a Bank
Destroying Asteroids
Maximum Employees to Be Invited to a Meeting
Remove All Ones With Row and Column Flips
Capitalize the Title
Maximum Twin Sum of a Linked List
Longest Palindrome by Concatenating Two Letter Words
Stamping the Grid
Check if Every Row and Column Contains All Numbers
Minimum Swaps to Group All 1's Together II
Count Words Obtained After Adding a Letter
Earliest Possible Day of Full Bloom
Pour Water Between Buckets to Make Water Levels Equal
Divide a String Into Groups of Size k
Minimum Moves to Reach Target Score
Solving Questions With Brainpower
Maximum Running Time of N Computers
Choose Numbers From Two Arrays in Range
Minimum Cost of Buying Candies With Discount
Count the Hidden Sequences
K Highest Ranked Items Within a Price Range
Number of Ways to Divide a Long Corridor
Count Elements With Strictly Smaller and Greater Elements
Rearrange Array Elements by Sign
Find All Lonely Numbers in the Array
Maximum Good People Based on Statements
Minimum Number of Lines to Cover Points
Keep Multiplying Found Values by Two
All Divisions With the Highest Score of a Binary Array
Find Substring With Given Hash Value
Groups of Strings
Amount of New Area Painted Each Day
Minimum Sum of Four Digit Number After Splitting Digits
Partition Array According to Given Pivot
Minimum Cost to Set Cooking Time
Minimum Difference in Sums After Removal of Elements
Sort Even and Odd Indices Independently
Smallest Value of the Rearranged Number
Design Bitset
Minimum Time to Remove All Cars Containing Illegal Goods
Unique Substrings With Equal Digit Frequency
Count Operations to Obtain Zero
Minimum Operations to Make the Array Alternating
Removing Minimum Number of Magic Beans
Maximum AND Sum of Array
Remove All Ones With Row and Column Flips II
Count Equal and Divisible Pairs in an Array
Find Three Consecutive Integers That Sum to a Given Number
Maximum Split of Positive Even Integers
Count Good Triplets in an Array
Count Integers With Even Digit Sum
Merge Nodes in Between Zeros
Construct String With Repeat Limit
Count Array Pairs Divisible by K
Number of Ways to Build Sturdy Brick Wall
Counting Words With a Given Prefix
Minimum Number of Steps to Make Two Strings Anagram II
Minimum Time to Complete Trips
Minimum Time to Finish the Race
Most Frequent Number Following Key In an Array
Sort the Jumbled Numbers
All Ancestors of a Node in a Directed Acyclic Graph
Minimum Number of Moves to Make Palindrome
Cells in a Range on an Excel Sheet
Append K Integers With Minimal Sum
Create Binary Tree From Descriptions
Replace Non-Coprime Numbers in Array
Number of Single Divisor Triplets
Find All K-Distant Indices in an Array
Count Artifacts That Can Be Extracted
Maximize the Topmost Element After K Moves
Minimum Weighted Subgraph With the Required Paths
Distance to a Cycle in Undirected Graph
Divide Array Into Equal Pairs
Maximize Number of Subsequences in a String
Minimum Operations to Halve Array Sum
Minimum White Tiles After Covering With Carpets
Count Hills and Valleys in an Array
Count Collisions on a Road
Maximum Points in an Archery Competition
Longest Substring of One Repeating Character
Minimum Health to Beat Game
Find the Difference of Two Arrays
Minimum Deletions to Make Array Beautiful
Find Palindrome With Fixed Length
Maximum Value of K Coins From Piles
Maximum Sum Score of Array
Minimum Bit Flips to Convert Number
Find Triangular Sum of an Array
Number of Ways to Select Buildings
Sum of Scores of Built Strings
Minimum Number of Operations to Convert Time
Find Players With Zero or One Losses
Maximum Candies Allocated to K Children
Encrypt and Decrypt Strings
Check if an Array Is Consecutive
Largest Number After Digit Swaps by Parity
Minimize Result by Adding Parentheses to Expression
Maximum Product After K Increments
Maximum Total Beauty of the Gardens
Add Two Integers
Root Equals Sum of Children
Count Positions on Street With Required Brightness
Find Closest Number to Zero
Number of Ways to Buy Pens and Pencils
Design an ATM Machine
Maximum Score of a Node Sequence
Calculate Digit Sum of a String
Minimum Rounds to Complete All Tasks
Maximum Trailing Zeros in a Cornered Path
Longest Path With Different Adjacent Characters
Maximum Cost of Trip With K Highways
Intersection of Multiple Arrays
Count Lattice Points Inside a Circle
Count Number of Rectangles Containing Each Point
Number of Flowers in Full Bloom
Design Video Sharing Platform
Count Prefixes of a Given String
Minimum Average Difference
Count Unguarded Cells in the Grid
Escape the Spreading Fire
Remove Digit From Number to Maximize Result
Minimum Consecutive Cards to Pick Up
K Divisible Elements Subarrays
Total Appeal of A String
Make Array Non-decreasing or Non-increasing
Largest 3-Same-Digit Number in String
Count Nodes Equal to Average of Subtree
Count Number of Texts
Check if There Is a Valid Parentheses String Path
Minimum Number of Keypresses
Find the K-Beauty of a Number
Number of Ways to Split Array
Maximum White Tiles Covered by a Carpet
Substring With Largest Variance
Find Resultant Array After Removing Anagrams
Maximum Consecutive Floors Without Special Floors
Largest Combination With Bitwise AND Greater Than Zero
Count Integers in Intervals
Closest Node to Path in Tree
Percentage of Letter in String
Maximum Bags With Full Capacity of Rocks
Minimum Lines to Represent a Line Chart
Sum of Total Strength of Wizards