This repository contains my practice and training solutions for algorithmic and data-structure problems from LeetCode and Codeforces.

The goal of this repository is to:

• Strengthen problem-solving skills
• Improve algorithmic thinking
• Prepare for technical interviews
• Practice writing clean, efficient, and readable code

• LeetCode
• Codeforces

• Arrays & Strings
• Hashing (Set / Dictionary)
• Sorting & Searching
• Two Pointers
• Greedy Algorithms
• Sliding Window
• Basic Math Problems
• Edge Case Handling
• Time & Space Complexity Optimization

├── leetcode/
│ ├── arrays/
│ ├── strings/
│ ├── greedy/
│ └── ...
│
├── codeforces/
│ ├── beginner/
│ ├── math/
│ └── ...
│
└── README.md

Each solution file typically includes:

• Problem description (brief)
• Approach explanation
• Time and space complexity
• Python implementation

• Best Time to Buy and Sell Stock
• Helpful Maths
• Boy or Girl
• String Parsing & Sorting
• Distinct Character Counting

• Python (primary)

For each problem, special attention is given to:

• Optimized solutions (O(n), O(log n) when possible)
• Comparison with brute-force approaches
• Handling edge cases correctly

This repository is meant for:

• Daily coding practice
• Interview preparation
• Revisiting core concepts
• Tracking personal progress over time

• Solutions are written for clarity first, then optimized.
• Some problems may have multiple approaches (naive vs optimal).
• Code may be refactored over time as understanding improves.

Suggestions, improvements, or alternative approaches are always welcome.

Happy coding! 💻🔥