Data Structures & Algorithms Learning Repository 🚀

Welcome to my DSA learning journey! This repository serves as a comprehensive guide for learning, practicing, and revising Data Structures and Algorithms in C++.

Repository Structure 📂

dsa/
├── basics/          # C++ fundamentals and basic concepts
├── data-structures/ # DS implementations and theory
├── algorithms/      # Algorithm implementations and concepts
├── techniques/      # Problem-solving patterns and approaches
├── leetcode/        # LeetCode solutions and notes
└── practice/        # Additional practice problems

Solution Documentation Structure 📝

Each problem solution should include:

1. Problem Documentation (problem.md)

# Problem Name

## Description
[Problem description]

## Constraints
- Time Limit: O(?)
- Space Limit: O(?)
- Input Constraints

## Examples
[Input/Output examples]

2. Visual Documentation (diagrams/)

• Use .drawio files for diagrams (VS Code Draw.io Integration)
• Include both source .drawio and exported .png files
• Naming convention: approach1-flow.drawio, memory-layout.drawio

3. Pseudocode (pseudocode.md)

# Approach 1: [Name]

## High-level Idea
[Brief explanation]

## Pseudocode
```algorithm
function solve(input):
    // Step 1: Initialize
    ...
    // Step 2: Process
    ...
    // Step 3: Return result
    return result

4. Implementation (solution.cpp)

/**
 * Solution for: [Problem Name]
 * Approach: [Approach Name]
 * 
 * Time: O(?)
 * Space: O(?)
 */
class Solution {
    // Implementation
};

Example Problem Structure

problem-name/
├── problem.md           # Problem description
├── diagrams/
│   ├── approach1.drawio # Draw.io source file
│   └── approach1.png    # Exported diagram
├── pseudocode.md        # Algorithm steps
├── solution.cpp         # Implementation
└── README.md           # Solution explanation

Setting Up VS Code for Diagrams 🎨

1. Install Draw.io Integration:

   • Open VS Code
   • Go to Extensions (Ctrl+Shift+X)
   • Search for "Draw.io Integration"
   • Install the extension

2. Creating Diagrams:

   • Create a new file with .drawio extension
   • VS Code will open the Draw.io editor
   • Create your diagram
   • Export as PNG if needed

3. Recommended Diagram Types:

   • Flow diagrams
   • Memory layouts
   • Tree/Graph visualizations
   • State transitions
   • Algorithm steps

Best Practices for Documentation 📚

1. Problem Analysis

   • Break down the problem
   • List edge cases
   • Draw initial examples

2. Visual Documentation

   • Use consistent colors/shapes
   • Label important components
   • Show step-by-step flow

3. Pseudocode

   • Use clear naming
   • Include comments
   • Show complexity analysis

4. Implementation

   • Match pseudocode structure
   • Add detailed comments
   • Include test cases

Contributing 🤝

Feel free to:

• Add more problems and solutions
• Improve existing solutions
• Add better explanations
• Suggest improvements

Progress Tracking 📊

• Use GitHub issues for tracking topics to learn
• Create milestones for major concept completions
• Use project boards for organizing current focus areas

Resources 📖

• LeetCode Profile
• DSA Youtube Playlist

Happy Learning! 🎯

Remember:

"The only way to learn a new programming language is by writing programs in it." - Dennis Ritchie