LeetCode DSA in C++

A collection of my solutions to LeetCode problems, written in C++, focused on mastering Data Structures and Algorithms for placement preparation.

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📊 My LeetCode Stats

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📌 About This Repository

This repository contains:

• My personal solutions to LeetCode problems
• Categorization by topic and difficulty
• Well-commented C++ code
• Notes and thought process for tricky problems

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📂 Folder Structure

LeetCode-DSA-Cpp/
│
├── Arrays/
│   ├── TwoSum.cpp
│   ├── MaximumSubarray.cpp
│
├── Strings/
│   ├── LongestSubstring.cpp
│
├── LinkedList/
│   ├── ReverseLinkedList.cpp
│
├── DynamicProgramming/
│   ├── LongestIncreasingSubsequence.cpp
│
└── README.md

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🛠 How to Run

1. Clone the repository

git clone https://github.com/your-username/LeetCode-DSA-Cpp.git
cd LeetCode-DSA-Cpp

2. Compile and run a solution

g++ Arrays/TwoSum.cpp -o TwoSum
./TwoSum

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🧠 Topics Covered

• Arrays
• Strings
• Linked List
• Stacks & Queues
• Trees & Graphs
• Recursion & Backtracking
• Dynamic Programming
• Greedy Algorithms
• Binary Search
• Hashing

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🎯 Goals

• Strengthen problem-solving skills
• Prepare for SDE interviews & placements
• Build a reusable DSA notes + solutions bank

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💡 Important LeetCode Questions for Placements

Here’s a list of must-do problems for placements:

• Arrays: Two Sum, Maximum Subarray, Merge Intervals
• Strings: Longest Substring Without Repeating Characters, Anagram Check
• Linked List: Reverse Linked List, Detect Cycle
• Trees: Binary Tree Level Order Traversal, Lowest Common Ancestor
• Dynamic Programming: Longest Increasing Subsequence, Coin Change
• Graphs: Number of Islands, Detect Cycle in Graph

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📜 License

This repository is licensed under the MIT License — you’re free to use, modify, and share the code with attribution.

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🤝 Contribution

If you have optimized solutions, feel free to fork this repo and create a pull request.