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- chapter01
- 1.1 - Is Unique
- 1.2 - Check Perm
- 1.3 - URLify
- 1.4 - PalinPerm
- 1.5 - OneAway
- 1.6 - String Compression
- 1.7 - Rotate Matrix
- 1.8 - Zero Matrix
- 1.9 - String Rotation
- chapter02
- 2.1 - Remove Dups
- 2.2 - Return Kth to Last
- 2.3 - Delete Middle Node
- 2.4 - Partition
- 2.5 - Sum Lists
- 2.6 - Palindrome
- 2.7 - Intersection
- 2.8 - Loop Detection
- chapter03
- 3.1 - Three in One
- 3.2 - Stack Min
- 3.3 - Stack of Plates
- 3.4 - Queue via Stacks
- 3.5 - Sort Stack
- 3.6 - Animal Shelter
- chapter04
- 4.01 - Route Between Nodes.1
- 4.02 - Minimal Tree
- 4.03 - List of Depths
- 4.04 - Check Balanced
- 4.05 - Validate BST
- 4.06 - Successor
- 4.07 - Build Order
- 4.08 - First Common Ancestor
- 4.09 - BST Sequences
- 4.10 - Check Subtree
- 4.11 - Random Node
- 4.12 - Paths with Sum
- chapter05
- 5.1 - Insertion
- 5.2 - Binary to String
- 5.3 - Flip Bit To Win
- 5.4 - Next Number
- 5.5 - Debugger
- 5.6 - Conversion
- 5.7 - Pairwise Swap
- 5.8 - Draw Line
- chapter06
- 6.01 - Heavy Pill
- 6.02 - Basketball
- 6.03 - Dominos
- 6.04 - Ants on a Triangle
- 6.05 - Jugs of Water
- 6.06 - Blue-Eyed Island
- 6.07 - The Apocalypse
- 6.08 - The Egg Drop Problem
- 6.09 - 100 Lockers
- 6.10 - Poison
- chapter07
- 7.01 - Deck of Cards
- 7.02 - Call Center
- 7.03 - Jukebox
- 7.04 - Parking Lot
- 7.05 - Online Book Reader
- 7.06 - Jigsaw
- 7.07 - Chat Server
- 7.08 - Othello
- 7.09 - Circular Array
- 7.10 - Minesweeper
- 7.11 - File System
- 7.12 - Hash Table
- chapter08
- 8.01 - Triple Step
- 8.02 - Robot in a Grid
- 8.03 - Magic Index
- 8.04 - Power Set
- 8.05 - Recursive Multiply
- 8.06 - Towers of Hanoi
- 8.07 - Permutations without Dups
- 8.08 - Permutations with Dups
- 8.09 - Parens
- 8.10 - Paint Fill
- 8.11 - Coins
- 8.12 - Eight Queens
- 8.13 - Stack Boxes
- chapter09
- 9.1 - Stock Data
- 9.2 - Social Network
- 9.3 - Web Crawler
- 9.4 - Duplicate URLs
- 9.5 - Cache
- 9.6 - Sales Rank
- 9.7 - Personal Financial Manager
- 9.8 - Paste Bin
- chapter10
- 10.01 - Sorted Merge
- 10.02 - Group Anagrams
- 10.03 - Search In Rotated Array
- 10.04 - Sorted Search No Size
- 10.05 - Sparse Search
- 10.06 - Sort Big File
- 10.07 - Missing Int
- 10.08 - Find Duplicates
- 10.09 - Sorted Matrix Search
- 10.10 - Rank From Stream
- 10.11 - Peaks And Valleys
- JavaScript
- chapter01
- 1.1 - Is Unique
- 1.2 - Check Perm
- 1.3 - URLify
- 1.4 - PalinPerm
- 1.5 - OneAway
- 1.6 - String Compression
- 1.7 - Rotate Matrix
- 1.8 - Zero Matrix
- 1.9 - String Rotation
- chapter02
- 2.1 - Remove Dups
- 2.2 - Return Kth to Last
- 2.3 - Delete Middle Node
- 2.4 - Partition
- 2.5 - Sum Lists
- 2.6 - Palindrome
- 2.7 - Intersection
- 2.8 - Loop Detection
- chapter03
- 3.1 - Three in One
- 3.2 - Stack Min
- 3.3 - Stack of Plates
- 3.4 - Queue via Stacks
- 3.5 - Sort Stack
- 3.6 - Animal Shelter
- chapter04
- 4.01 - Route Between Nodes
- 4.02 - Minimal Tree
- 4.03 - List of Depths
- 4.04 - Check Balanced
- 4.05 - Validate BST
- 4.06 - Successor
- 4.07 - Build Order
- 4.08 - First Common Ancestor
- 4.09 - BST Sequences
- 4.10 - Check Subtree
- 4.11 - Random Node
- 4.12 - Paths with Sum
- chapter05
- 5.1 - Insertion
- 5.2 - Binary to String
- 5.3 - Flip Bit To Win
- 5.4 - Next Number
- 5.5 - Debugger
- 5.6 - Conversion
- 5.7 - Pairwise Swap
- 5.8 - Draw Line
- chapter06
- 6.01 - Heavy Pill
- 6.02 - Basketball
- 6.03 - Dominos
- 6.04 - Ants on a Triangle
- 6.05 - Jugs of Water
- 6.06 - Blue-Eyed Island
- 6.07 - The Apocalypse
- 6.08 - The Egg Drop Problem
- 6.09 - 100 Lockers
- 6.10 - Poison
- chapter07
- 7.01 - Deck of Cards
- 7.02 - Call Center
- 7.03 - Jukebox
- 7.04 - Parking Lot
- 7.05 - Online Book Reader
- 7.06 - Jigsaw
- 7.07 - Chat Server
- 7.08 - Othello
- 7.09 - Circular Array
- 7.10 - Minesweeper
- 7.11 - File System
- 7.12 - Hash Table
- chapter08
- 8.01 - Triple Step
- 8.02 - Robot in a Grid
- 8.03 - Magic Index
- 8.04 - Power Set
- 8.05 - Recursive Multiply
- 8.06 - Towers of Hanoi
- 8.07 - Permutations without Dups
- 8.08 - Permutations with Dups
- 8.09 - Parens
- 8.10 - Paint Fill
- 8.11 - Coins
- 8.12 - Eight Queens
- 8.13 - Stack Boxes
- 8.14 - Boolean Eval
- chapter09
- 9.1 - Stock Data
- 9.2 - Social Network
- 9.3 - Web Crawler
- 9.4 - Duplicate URLs
- 9.5 - Cache
- 9.6 - Sales Rank
- 9.7 - Personal Financial Manager
- 9.8 - Paste Bin
- chapter10
- 10.01 - Sorted Merge
- 10.02 - Group Anagrams
- 10.03 - Search In Rotated Array
- 10.04 - Sorted Search No Size
- 10.05 - Sparse Search
- 10.06 - Sort Big File
- 10.07 - Missing Int
- 10.08 - Find Duplicates
- 10.09 - Sorted Matrix Search
- 10.10 - Rank From Stream
- 10.11 - Peaks And Valleys
- Python
- chapter01
- 1.1 - Is Unique
- 1.2 - Check Perm
- 1.3 - URLify
- 1.4 - PalinPerm
- 1.5 - OneAway
- 1.6 - String Compression
- 1.7 - Rotate Matrix
- 1.8 - Zero Matrix
- 1.9 - String Rotation
- chapter02
- 2.1 - Remove Dups
- 2.2 - Return Kth to Last
- 2.3 - Delete Middle Node
- 2.4 - Partition
- 2.5 - Sum Lists
- 2.6 - Palindrome
- 2.7 - Intersection
- 2.8 - Loop Detection
- chapter03
- 3.1 - Three in One
- 3.2 - Stack Min
- 3.3 - Stack of Plates
- 3.4 - Queue via Stacks
- 3.5 - Sort Stack
- 3.6 - Animal Shelter
- chapter04
- 4.01 - Route Between Nodes
- 4.02 - Minimal Tree
- 4.03 - List of Depths
- 4.04 - Check Balanced
- 4.05 - Validate BST
- 4.06 - Successor
- 4.07 - Build Order
- 4.08 - First Common Ancestor
- 4.09 - BST Sequences
- 4.10 - Check Subtree
- 4.11 - Random Node
- 4.12 - Paths with Sum
- chapter05
- 5.1 - Insertion
- 5.2 - Binary to String
- 5.3 - Flip Bit To Win
- 5.4 - Next Number
- 5.5 - Debugger
- 5.6 - Conversion
- 5.7 - Pairwise Swap
- 5.8 - Draw Line
- chapter06
- 6.01 - Heavy Pill
- 6.02 - Basketball
- 6.03 - Dominos
- 6.04 - Ants on a Triangle
- 6.05 - Jugs of Water
- 6.06 - Blue-Eyed Island
- 6.07 - The Apocalypse
- 6.08 - The Egg Drop Problem
- 6.09 - 100 Lockers
- 6.10 - Poison
- chapter07
- 7.01 - Deck of Cards
- 7.02 - Call Center
- 7.03 - Jukebox
- 7.04 - Parking Lot
- 7.05 - Online Book Reader
- 7.06 - Jigsaw
- 7.07 - Chat Server
- 7.08 - Othello
- 7.09 - Circular Array
- 7.10 - Minesweeper
- 7.11 - File System
- 7.12 - Hash Table
- chapter08
- 8.01 - Triple Step
- 8.02 - Robot in a Grid
- 8.03 - Magic Index
- 8.04 - Power Set
- 8.05 - Recursive Multiply
- 8.06 - Towers of Hanoi
- 8.07 - Permutations without Dups
- 8.08 - Permutations with Dups
- 8.09 - Parens
- 8.10 - Paint Fill
- 8.11 - Coins
- 8.12 - Eight Queens
- 8.13 - Stack Boxes
- 8.14 - Boolean Eval
- chapter09
- 9.1 - Stock Data
- 9.2 - Social Network
- 9.3 - Web Crawler
- 9.4 - Duplicate URLs
- 9.5 - Cache
- 9.6 - Sales Rank
- 9.7 - Personal Financial Manager
- 9.8 - Paste Bin
- chapter10
- 10.01 - Sorted Merge
- 10.02 - Group Anagrams
- 10.03 - Search In Rotated Array
- 10.04 - Sorted Search No Size
- 10.05 - Sparse Search
- 10.06 - Sort Big File
- 10.07 - Missing Int
- 10.08 - Find Duplicates
- 10.09 - Sorted Matrix Search
- 10.10 - Rank From Stream
- 10.11 - Peaks And Valleys
- Ruby
- chapter01
- 1.1 - Is Unique
- 1.2 - Check Perm
- 1.3 - URLify
- 1.4 - PalinPerm
- 1.5 - OneAway
- 1.6 - String Compression
- 1.7 - Rotate Matrix
- 1.8 - Zero Matrix
- 1.9 - String Rotation
- chapter02
- 2.1 - Remove Dups
- 2.2 - Return Kth to Last
- 2.3 - Delete Middle Node
- 2.4 - Partition
- 2.5 - Sum Lists
- 2.6 - Palindrome
- 2.7 - Intersection
- 2.8 - Loop Detection
- chapter03
- 3.1 - Three in One
- 3.2 - Stack Min
- 3.3 - Stack of Plates
- 3.4 - Queue via Stacks
- 3.5 - Sort Stack
- 3.6 - Animal Shelter
- chapter04
- 4.01 - Route Between Nodes
- 4.02 - Minimal Tree
- 4.03 - List of Depths
- 4.04 - Check Balanced
- 4.05 - Validate BST
- 4.06 - Successor
- 4.07 - Build Order
- 4.08 - First Common Ancestor
- 4.09 - BST Sequences
- 4.10 - Check Subtree
- 4.11 - Random Node
- 4.12 - Paths with Sum
- chapter05
- 5.1 - Insertion
- 5.2 - Binary to String
- 5.3 - Flip Bit To Win
- 5.4 - Next Number
- 5.5 - Debugger
- 5.6 - Conversion
- 5.7 - Pairwise Swap
- 5.8 - Draw Line
- chapter06
- 6.01 - Heavy Pill
- 6.02 - Basketball
- 6.03 - Dominos
- 6.04 - Ants on a Triangle
- 6.05 - Jugs of Water
- 6.06 - Blue-Eyed Island
- 6.07 - The Apocalypse
- 6.08 - The Egg Drop Problem
- 6.09 - 100 Lockers
- 6.10 - Poison
- chapter07
- 7.01 - Deck of Cards
- 7.02 - Call Center
- 7.03 - Jukebox
- 7.04 - Parking Lot
- 7.05 - Online Book Reader
- 7.06 - Jigsaw
- 7.07 - Chat Server
- 7.08 - Othello
- 7.09 - Circular Array
- 7.10 - Minesweeper
- 7.11 - File System
- 7.12 - Hash Table
- chapter08
- 8.01 - Triple Step
- 8.02 - Robot in a Grid
- 8.03 - Magic Index
- 8.04 - Power Set
- 8.05 - Recursive Multiply
- 8.06 - Towers of Hanoi
- 8.07 - Permutations without Dups
- 8.08 - Permutations with Dups
- 8.09 - Parens
- 8.10 - Paint Fill
- 8.11 - Coins
- 8.12 - Eight Queens
- 8.13 - Stack Boxes
- 8.14 - Boolean Eval
- chapter09
- 9.1 - Stock Data
- 9.2 - Social Network
- 9.3 - Web Crawler
- 9.4 - Duplicate URLs
- 9.5 - Cache
- 9.6 - Sales Rank
- 9.7 - Personal Financial Manager
- 9.8 - Paste Bin
- chapter10
- 10.01 - Sorted Merge
- 10.02 - Group Anagrams
- 10.03 - Search In Rotated Array
- 10.04 - Sorted Search No Size
- 10.05 - Sparse Search
- 10.06 - Sort Big File
- 10.07 - Missing Int
- 10.08 - Find Duplicates
- 10.09 - Sorted Matrix Search
- 10.10 - Rank From Stream
- 10.11 - Peaks And Valleys
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