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Solved examples of DSA questions from the famous 150 Interview Prep Questions from LeetCode in C++

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1. Two Sum.md
1. Two Sum.md
 
 
100. Same Tree.md
100. Same Tree.md
 
 
101. Symmetric Tree.md
101. Symmetric Tree.md
 
 
104. Maximum Depth of Binary Tree.md
104. Maximum Depth of Binary Tree.md
 
 
105. Construct Binary Tree from Preorder and Inorder Traversal.md
105. Construct Binary Tree from Preorder and Inorder Traversal.md
 
 
108. Convert Sorted Array to Binary Search Tree.md
108. Convert Sorted Array to Binary Search Tree.md
 
 
11. Container With Most Water.md
11. Container With Most Water.md
 
 
110. Balanced Binary Tree.md
110. Balanced Binary Tree.md
 
 
111. Minimum Depth of Binary Tree.md
111. Minimum Depth of Binary Tree.md
 
 
112. Path Sum.md
112. Path Sum.md
 
 
114. Flatten Binary Tree to Linked List.md
114. Flatten Binary Tree to Linked List.md
 
 
118. Pascal's Triangle.md
118. Pascal's Triangle.md
 
 
119. Pascal's Triangle II.md
119. Pascal's Triangle II.md
 
 
12. Integer to Roman.md
12. Integer to Roman.md
 
 
121. Best Time to Buy and Sell Stock.md
121. Best Time to Buy and Sell Stock.md
 
 
122. Best Time to Buy and Sell Stock II.md
122. Best Time to Buy and Sell Stock II.md
 
 
125. Valid Palindrome.md
125. Valid Palindrome.md
 
 
128. Longest Consecutive Sequence.md
128. Longest Consecutive Sequence.md
 
 
129. Sum Root to Leaf Numbers.md
129. Sum Root to Leaf Numbers.md
 
 
13. Roman to Integer.md
13. Roman to Integer.md
 
 
134. Gas Station.md
134. Gas Station.md
 
 
135. Candy.md
135. Candy.md
 
 
136. Single Number.md
136. Single Number.md
 
 
137. Single Number II.md
137. Single Number II.md
 
 
138. Copy List with Random Pointer.md
138. Copy List with Random Pointer.md
 
 
139. Word Break.md
139. Word Break.md
 
 
14. Longest Common Prefix.md
14. Longest Common Prefix.md
 
 
141. Linked List Cycle.md
141. Linked List Cycle.md
 
 
142. Linked List Cycle II.md
142. Linked List Cycle II.md
 
 
144. Binary Tree Preorder Traversal.md
144. Binary Tree Preorder Traversal.md
 
 
145. Binary Tree Postorder Traversal.md
145. Binary Tree Postorder Traversal.md
 
 
1456. Maximum Number of Vowels in a Substring of Given Length.md
1456. Maximum Number of Vowels in a Substring of Given Length.md
 
 
146. LRU Cache.md
146. LRU Cache.md
 
 
149. Max Points on a Line.md
149. Max Points on a Line.md
 
 
15. 3Sum.md
15. 3Sum.md
 
 
150. Evaluate Reverse Polish Notation.md
150. Evaluate Reverse Polish Notation.md
 
 
1508. Range Sum of Sorted Subarray Sums.md
1508. Range Sum of Sorted Subarray Sums.md
 
 
151. Reverse Words in a String.md
151. Reverse Words in a String.md
 
 
155. Min Stack.md
155. Min Stack.md
 
 
16. 3Sum Closest.md
16. 3Sum Closest.md
 
 
160. Intersection of Two Linked Lists.md
160. Intersection of Two Linked Lists.md
 
 
162. Find Peak Element.md
162. Find Peak Element.md
 
 
167. Two Sum II - Input Array Is Sorted.md
167. Two Sum II - Input Array Is Sorted.md
 
 
168. Excel Sheet Column Title.md
168. Excel Sheet Column Title.md
 
 
169. Majority Element.md
169. Majority Element.md
 
 
17. Letter Combinations of a Phone Number.md
17. Letter Combinations of a Phone Number.md
 
 
171. Excel Sheet Column Number.md
171. Excel Sheet Column Number.md
 
 
172. Factorial Trailing Zeroes.md
172. Factorial Trailing Zeroes.md
 
 
1768. Merge Strings Alternately.md
1768. Merge Strings Alternately.md
 
 
189. Rotate Array.md
189. Rotate Array.md
 
 
1894. Find the Student that Will Replace the Chalk.md
1894. Find the Student that Will Replace the Chalk.md
 
 
19. Remove Nth Node From End of List.md
19. Remove Nth Node From End of List.md
 
 
190. Reverse Bits.md
190. Reverse Bits.md
 
 
191. Number of 1 Bits.md
191. Number of 1 Bits.md
 
 
198. House Robber.md
198. House Robber.md
 
 
20. Valid Parentheses.md
20. Valid Parentheses.md
 
 
202. Happy Number.md
202. Happy Number.md
 
 
205. Isomorphic Strings.md
205. Isomorphic Strings.md
 
 
206. Reverse Linked List.md
206. Reverse Linked List.md
 
 
209. Minimum Size Subarray Sum.md
209. Minimum Size Subarray Sum.md
 
 
222. Count Complete Tree Nodes.md
222. Count Complete Tree Nodes.md
 
 
224. Basic Calculator.md
224. Basic Calculator.md
 
 
228. Summary Ranges.md
228. Summary Ranges.md
 
 
229. Majority Element II.md
229. Majority Element II.md
 
 
234. Palindrome Linked List.md
234. Palindrome Linked List.md
 
 
238. Product of Array Except Self.md
238. Product of Array Except Self.md
 
 
242. Valid Anagram.md
242. Valid Anagram.md
 
 
257. Binary Tree Paths.md
257. Binary Tree Paths.md
 
 
26. Remove Duplicates from Sorted Array.md
26. Remove Duplicates from Sorted Array.md
 
 
260. Single Number III.md
260. Single Number III.md
 
 
27. Remove Element.md
27. Remove Element.md
 
 
274. H-Index.md
274. H-Index.md
 
 
28. Find the Index of the First Occurrence in a String.md
28. Find the Index of the First Occurrence in a String.md
 
 
290. Word Pattern.md
290. Word Pattern.md
 
 
3. Longest Substring Without Repeating Characters.md
3. Longest Substring Without Repeating Characters.md
 
 
345. Reverse Vowels of a String.md
345. Reverse Vowels of a String.md
 
 
35. Search Insert Position.md
35. Search Insert Position.md
 
 
36. Valid Sudoku.md
36. Valid Sudoku.md
 
 
374. Guess Number Higher or Lower.md
374. Guess Number Higher or Lower.md
 
 
380. Insert Delete GetRandom O(1).md
380. Insert Delete GetRandom O(1).md
 
 
383. Ransom Note.md
383. Ransom Note.md
 
 
392. Is Subsequence.md
392. Is Subsequence.md
 
 
4. Median of Two Sorted Arrays.md
4. Median of Two Sorted Arrays.md
 
 
42. Trapping Rain Water.md
42. Trapping Rain Water.md
 
 
45. Jump Game II.md
45. Jump Game II.md
 
 
49. Group Anagrams.md
49. Group Anagrams.md
 
 
5. Longest Palindromic Substring.md
5. Longest Palindromic Substring.md
 
 
50. Pow(x, n).md
50. Pow(x, n).md
 
 
55. Jump Game.md
55. Jump Game.md
 
 
56. Merge Intervals.md
56. Merge Intervals.md
 
 
57. Insert Interval.md
57. Insert Interval.md
 
 
58. Length of Last Word.md
58. Length of Last Word.md
 
 
6. Zigzag Conversion.md
6. Zigzag Conversion.md
 
 
605. Can Place Flowers.md
605. Can Place Flowers.md
 
 
61. Rotate List.md
61. Rotate List.md
 
 
69. Sqrt(x).md
69. Sqrt(x).md
 
 
7. Reverse Integer.md
7. Reverse Integer.md
 
 
70. Climbing Stairs.md
70. Climbing Stairs.md
 
 
71. Simplify Path.md
71. Simplify Path.md
 
 
74. Search a 2D Matrix.md
74. Search a 2D Matrix.md
 
 

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🎯 LeetCode 150 Interview Questions Solutions Playlist

Hey there! 👋

Welcome to my GitHub repository where I share solutions to the 150 Interview Questions Playlist on LeetCode. If you're preparing for coding interviews, you're in the right place! 🚀

About This Repo

This repo is all about tackling some of the most common and challenging interview questions you'll find on LeetCode. Whether you're brushing up on your skills or diving into coding interviews for the first time, these solutions are here to help you out.

What's Inside?

  • 150 Questions: Each question from the LeetCode 150 Interview Questions Playlist.
  • Detailed Solutions: Clear and concise solutions, with explanations to help you understand the approach.
  • Languages used: C++.

Why This Repo?

Coding interviews can be tough, but practice makes perfect. This repository aims to:
  • Help you understand different types of problems.
  • Provide you with various approaches to solve a problem.
  • Boost your confidence for your next interview.

How to Use


Clone the Repo: git clone https://github.com/aman090304/150-Interview-Questions-Leetcode

Navigate to the Question: Find the question you're working on.


Review the Solution: Check out the solution, understand the logic, and try to implement it yourself.

Practice: Use the solutions as a guide to practice and refine your own coding skills.

Contributing. If you have a better solution or find a bug, feel free to contribute! Just fork the repo, make your changes, and send a pull request. Let's make this repo even more awesome together! 💪

Connect Have questions or just want to connect? Find me on Twitter or LinkedIn . Let's chat about code, tech, or anything interesting like coffee dates! 🍵💖

Happy coding! Keep pushing forward and ace those interviews! 🌟

Cheers,

Aman Gupta.

About

Solved examples of DSA questions from the famous 150 Interview Prep Questions from LeetCode in C++

leetcode.com/u/xoolxunt

Topics

cpp dsa leetcode-cpp dsa-algorithm

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