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#1. Two Sum
#1. Two Sum
 
 
#1011. Capacity to Ship Packages Within D Days.
#1011. Capacity to Ship Packages Within D Days.
 
 
#104. Maximum Depth of Binary Tree
#104. Maximum Depth of Binary Tree
 
 
#11. Container with most water
#11. Container with most water
 
 
#121. Best time to buy and sell stock
#121. Best time to buy and sell stock
 
 
#125. Valid Palindrome
#125. Valid Palindrome
 
 
#128. Longest Consecutive Sequence
#128. Longest Consecutive Sequence
 
 
#14. Longest Common Prefix
#14. Longest Common Prefix
 
 
#141. Linked List Cycle
#141. Linked List Cycle
 
 
#143. Reorder List
#143. Reorder List
 
 
#144. Binary Tree Preorder Traversal
#144. Binary Tree Preorder Traversal
 
 
#145. Binary Tree Postorder Traversal
#145. Binary Tree Postorder Traversal
 
 
#15. 3Sum
#15. 3Sum
 
 
#150. Reverse Polish Notation
#150. Reverse Polish Notation
 
 
#153. Find Minimum in Rotated Sorted Array
#153. Find Minimum in Rotated Sorted Array
 
 
#155. MinStack
#155. MinStack
 
 
#167. Two Integer Sum II
#167. Two Integer Sum II
 
 
#169. Majority Element
#169. Majority Element
 
 
#1768. Merge String Alternately
#1768. Merge String Alternately
 
 
#18. 4Sum
#18. 4Sum
 
 
#189. Rotate Array
#189. Rotate Array
 
 
#19. Remove Nth Node from End of List
#19. Remove Nth Node from End of List
 
 
#2. Add Two Numbers
#2. Add Two Numbers
 
 
#20. Valid Parantheses
#20. Valid Parantheses
 
 
#206. Reverse Linked List
#206. Reverse Linked List
 
 
#209. Minimum Size Subarray Sum
#209. Minimum Size Subarray Sum
 
 
#21. Merge Two Sorted Lists
#21. Merge Two Sorted Lists
 
 
#217. Contains Duplicates
#217. Contains Duplicates
 
 
#219. Contains Duplicate II
#219. Contains Duplicate II
 
 
#226. Invert Binary Tree
#226. Invert Binary Tree
 
 
#238. Product of array except self
#238. Product of array except self
 
 
#242: Valid Anagram
#242: Valid Anagram
 
 
#26. Remove duplicates from sorted array
#26. Remove duplicates from sorted array
 
 
#27. Remove Element
#27. Remove Element
 
 
#287. Find Duplicate Number
#287. Find Duplicate Number
 
 
#3. Longest Substring without Repeating Characters
#3. Longest Substring without Repeating Characters
 
 
#33. Search in Rotated Sorted Array
#33. Search in Rotated Sorted Array
 
 
#344. Reverse String
#344. Reverse String
 
 
#35. Search Insert Position.
#35. Search Insert Position.
 
 
#543. Diameter of Binary Tree
#543. Diameter of Binary Tree
 
 
#567. Permutation in String
#567. Permutation in String
 
 
#680. Valid Palindrome II
#680. Valid Palindrome II
 
 
#682. Baseball Game
#682. Baseball Game
 
 
#69. Sqrt(x)
#69. Sqrt(x)
 
 
#704. Binary Search
#704. Binary Search
 
 
#735. Asteroid Collision
#735. Asteroid Collision
 
 
#74. Search 2D Matrix
#74. Search 2D Matrix
 
 
#75. Sort Color
#75. Sort Color
 
 
#853 Car Fleet
#853 Car Fleet
 
 
#875. Koko Eating Bananas
#875. Koko Eating Bananas
 
 
#88. Merge Sorted Array
#88. Merge Sorted Array
 
 
#881. Boats to save people
#881. Boats to save people
 
 
#901. Online Stock Span
#901. Online Stock Span
 
 
#94. Binary Tree Inorder Traversal
#94. Binary Tree Inorder Traversal
 
 
README.md
README.md
 
 

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LeetCode Solutions

Welcome to LeetCode-Solutions!

This repository serves as a comprehensive collection of LeetCode problem solutions, providing quick and organized access to solutions across various difficulty levels.

About the Repository

  • Solutions are organized following the NeetCode roadmap and patterns, making it easier to learn problem-solving techniques systematically.
  • Problems include Easy, Medium, and Hard difficulty levels.
  • Many problems contain multiple approaches, showcasing different optimization strategies and thought processes.
  • Solutions are continuously updated as I solve more problems and explore new techniques.

Contributions

Contributions are highly encouraged! If you have alternative approaches, optimizations, or cleaner implementations for any problem, feel free to open a pull request and contribute to the repository.

Let's build a valuable resource for the coding community together.

Happy Coding!

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Get the solutions of all leetcode problems

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