Leetcode

This is a repository for the solutions of various Leetcode problems. It was started with the aim of making a nice database of various leetcode problems in C++.

Happy Leetcoding!

Contribution

Solve Leetcode problems and add the solutions here. Follow the naming pattern for ease in locating the solutions. Some sample issues have been created for your convenience but feel free to add more issues and send PRs. Remember not to duplicate questions and not to submit problems during any ongoing competition.

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Name		Name	Last commit message	Last commit date
Latest commit History 781 Commits
3sum.cpp		3sum.cpp
4SUM.cpp		4SUM.cpp
Add Binary.cpp		Add Binary.cpp
Add Digit.cpp		Add Digit.cpp
Add Two Numbers.cpp		Add Two Numbers.cpp
Add to Array-Form of Integer.cpp		Add to Array-Form of Integer.cpp
Adding Two Negabinary Number.cpp		Adding Two Negabinary Number.cpp
Additive number.cpp		Additive number.cpp
Airport Seat Assignment Probability.cpp		Airport Seat Assignment Probability.cpp
All Elements in Two Binary Search Trees.cpp		All Elements in Two Binary Search Trees.cpp
All Paths From Source to Target.cpp		All Paths From Source to Target.cpp
All Possible Full Binary Trees.cpp		All Possible Full Binary Trees.cpp
AllPathFromSourceToTarget.cpp		AllPathFromSourceToTarget.cpp
Angle Between Hands of a Clock.cpp		Angle Between Hands of a Clock.cpp
Arithmetic Slices.cpp		Arithmetic Slices.cpp
Arranging coins.cpp		Arranging coins.cpp
Array Partition I.cpp		Array Partition I.cpp
Average Salary Excluding the Minimum and Maximum Salary.cpp		Average Salary Excluding the Minimum and Maximum Salary.cpp
Average Waiting Time.cpp		Average Waiting Time.cpp
Avoid Flood in The City.cpp		Avoid Flood in The City.cpp
Backspace String Compare		Backspace String Compare
Balance a Binary Search Tree.cpp		Balance a Binary Search Tree.cpp
Balanced Binary Tree.cpp		Balanced Binary Tree.cpp
Balanced String Split.cpp		Balanced String Split.cpp
Base_7.cpp		Base_7.cpp
Baseball Game		Baseball Game
Basic calculator.cpp		Basic calculator.cpp
Battleships in a Board.cpp		Battleships in a Board.cpp
Best Time to Buy and Sell Stock 2.cpp		Best Time to Buy and Sell Stock 2.cpp
Best Time to Buy and Sell Stock II.cpp		Best Time to Buy and Sell Stock II.cpp
Best Time to Buy and Sell Stock III.cpp		Best Time to Buy and Sell Stock III.cpp
Best Time to Buy and Sell Stock with Cooldown.cpp		Best Time to Buy and Sell Stock with Cooldown.cpp
Best Time to Buy and Sell Stock.cpp		Best Time to Buy and Sell Stock.cpp
Binary Search Tree to Greater Sum Tree.cpp		Binary Search Tree to Greater Sum Tree.cpp
Binary Search.cpp		Binary Search.cpp
Binary Subarrays With Sum.cpp		Binary Subarrays With Sum.cpp
Binary Tree Inorder Traversal.cpp		Binary Tree Inorder Traversal.cpp
Binary Tree Level Order Traversal II.cpp		Binary Tree Level Order Traversal II.cpp
Binary Tree Level Order Traversal.cpp		Binary Tree Level Order Traversal.cpp
Binary Tree Maximum Path Sum.cpp		Binary Tree Maximum Path Sum.cpp
Binary Tree Paths.cpp		Binary Tree Paths.cpp
Binary Tree Postorder Traversal.cpp		Binary Tree Postorder Traversal.cpp
Binary Tree Preorder Traversal.cpp		Binary Tree Preorder Traversal.cpp
Binary Tree Pruning.cpp		Binary Tree Pruning.cpp
Binary Tree Right Side View.cpp		Binary Tree Right Side View.cpp
Binary Tree Zigzag Level Order Traversal.cpp		Binary Tree Zigzag Level Order Traversal.cpp
Binary_Tree_Tilt.cpp		Binary_Tree_Tilt.cpp
Bit Manipulation		Bit Manipulation
Bitwise AND of Numbers Range.cpp		Bitwise AND of Numbers Range.cpp
Bitwise ORs of Subarrays.cpp		Bitwise ORs of Subarrays.cpp
Boats to Save People.cpp		Boats to Save People.cpp
Buddy String.cpp		Buddy String.cpp
Bulb Switcher IV .cpp		Bulb Switcher IV .cpp
Bulb Switcher IV.cpp		Bulb Switcher IV.cpp
Burst Balloons.cpp		Burst Balloons.cpp
Can Make Arithmetic Progression From Sequence.cpp		Can Make Arithmetic Progression From Sequence.cpp
Can Place Flowers.cpp		Can Place Flowers.cpp
Candy.cpp		Candy.cpp
Capacity To Ship Packages Within D Days (2).cpp		Capacity To Ship Packages Within D Days (2).cpp
Capacity To Ship Packages Within D Days.cpp		Capacity To Ship Packages Within D Days.cpp
Cells with Odd Values in a Matrix.cpp		Cells with Odd Values in a Matrix.cpp
Cheapest Flights Within K Stops.cpp		Cheapest Flights Within K Stops.cpp
Check Array Formation through Concatenation		Check Array Formation through Concatenation
Check If N and Its Double Exist.cpp		Check If N and Its Double Exist.cpp
Check if Two String Arrays are Equivalent.cpp		Check if Two String Arrays are Equivalent.cpp
Check_If_N_and_it's_Double_exists.cpp		Check_If_N_and_it's_Double_exists.cpp
Cinema Seat Allocation		Cinema Seat Allocation
Circular Array Loop		Circular Array Loop
Climbing Stairs.cpp		Climbing Stairs.cpp
Climbing-Stairs.cpp		Climbing-Stairs.cpp
Clone Graph.cpp		Clone Graph.cpp
Closest Divisors.cpp		Closest Divisors.cpp
Clumsy Factorial.cpp		Clumsy Factorial.cpp
CoinChange2.cpp		CoinChange2.cpp
Combination Sum II.cpp		Combination Sum II.cpp
Combination Sum III.cpp		Combination Sum III.cpp
Combination Sum.cpp		Combination Sum.cpp
Combinations.cpp		Combinations.cpp
Complement of Base 10 Integer.cpp		Complement of Base 10 Integer.cpp
Concatenation Of Consecutive Binary Numbers.cpp		Concatenation Of Consecutive Binary Numbers.cpp
Consecutive Characters.cpp		Consecutive Characters.cpp
Construct Binary Search Tree from Preorder Traversal.cpp		Construct Binary Search Tree from Preorder Traversal.cpp
Construct Binary Tree from Inorder and Postorder Traversal.cpp		Construct Binary Tree from Inorder and Postorder Traversal.cpp
Construct Binary Tree from Preorder and Inorder Traversal.cpp		Construct Binary Tree from Preorder and Inorder Traversal.cpp
Construct the rectangle.cpp		Construct the rectangle.cpp
Container With Most Water.cpp		Container With Most Water.cpp
Contains Duplicate III.cpp		Contains Duplicate III.cpp
Convert Binary Number in a Linked List to Integer.cpp		Convert Binary Number in a Linked List to Integer.cpp
Convert Integer to the Sum of Two No Zero Integers.cpp		Convert Integer to the Sum of Two No Zero Integers.cpp
Convert Sorted Array to Binary Search Tree.cpp		Convert Sorted Array to Binary Search Tree.cpp
Convert Sorted List to Binary Search Tree.cpp		Convert Sorted List to Binary Search Tree.cpp
Copy List with Random Pointer.cpp		Copy List with Random Pointer.cpp
Count Complete Tree Nodes.cpp		Count Complete Tree Nodes.cpp
Count Good Meals.cpp		Count Good Meals.cpp
Count Good Nodes in Binary Tree.cpp		Count Good Nodes in Binary Tree.cpp
Count Good Triplets.cpp		Count Good Triplets.cpp
Count Negative Numbers in a Sorted Matrix.cpp		Count Negative Numbers in a Sorted Matrix.cpp
Count Number of Nice Subarrays.cpp		Count Number of Nice Subarrays.cpp
Count Number of Teams.cpp		Count Number of Teams.cpp
Count Numbers with Unique Digits.cpp		Count Numbers with Unique Digits.cpp

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