Month 3: Dynamic Programming & Mock Interviews

• Week 9-10: Dynamic Programming (1D & 2D)
• Week 11: Backtracking & Advanced Techniques
• Week 12: Mock Interviews & Final Preparation

🛠️ Key Resources

Documentation

• DSA_3_Month_Training_Program.md - Complete curriculum with weekly breakdown
• DSA_Problem_Lists_by_Week.md - Detailed problem lists organized by week
• DSA_Progress_Tracker.md - Templates for tracking progress and mock interviews
• DSA_Cheatsheet.md - Quick reference guide for common algorithms and data structures
• DSA_Video_Resources.md - Curated list of educational video resources
• IMPROVEMENTS_SUMMARY.md - Summary of enhancements made to this repository

Code Examples

• Java Implementations: Each concept includes practical Java code examples
• Pattern Templates: Ready-to-use templates for common algorithmic patterns
• Problem Solutions: Solutions to popular DSA problems
• Complexity Analysis: Time and space complexity documented for each algorithm

🎥 Video Resources

This repository includes a curated collection of high-quality video resources to supplement your DSA learning:

Categories Covered

• Foundational Concepts
• Data Structures (Arrays, Linked Lists, Trees, Graphs, etc.)
• Algorithms (Sorting, Searching, Dynamic Programming, etc.)
• Problem Solving Techniques
• Interview Preparation
• Advanced Topics

Accessing Video Resources

View the complete list in DSA_Video_Resources.md, which organizes videos by topic and includes direct links to educational content from renowned educators and platforms.

🧪 Unit Testing

This repository includes unit tests for verifying the correctness of implementations:

Running Tests

On Linux/macOS

./build.sh

On Windows

build.bat

Test Structure

• Tests are written using JUnit 5
• Each algorithm implementation has corresponding test cases
• Edge cases and boundary conditions are thoroughly tested

💻 Setting Up Input/Output in VS Code

To efficiently work with input/output in your Java programs within VS Code:

Method 1: Using Scanner with Console Input

Most Java files in this repository use Scanner for console input:

import java.util.Scanner;

public class Example {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        // Your code here
        sc.close();
    }
}

Method 2: Creating Input Files for Testing

1. Create a text file (e.g., input.txt) in your project root or problem directory
2. Add your test input data to this file
3. Modify your Java program to read from the file:

import java.io.File;
import java.io.FileNotFoundException;
import java.util.Scanner;

public class Example {
    public static void main(String[] args) throws FileNotFoundException {
        Scanner sc = new Scanner(new File("input.txt"));
        // Your code here
        sc.close();
    }
}

Method 3: VS Code Launch Configuration

Create a .vscode/launch.json file in your repository with:

{
    "version": "0.2.0",
    "configurations": [
        {
            "type": "java",
            "name": "Current File",
            "request": "launch",
            "mainClass": "${file}",
            "args": ""
        }
    ]
}

Method 4: Using Code Runner Extension

1. Install the "Code Runner" extension in VS Code
2. Configure it to run Java files with input redirection:
   • Go to Settings (Ctrl+,)
   • Search for "code runner executor map"
   • Modify the Java entry to: "java": "cd $dir && javac $fileName && java $fileNameWithoutExt < input.txt"

🏆 Success Metrics

By completing this program, you will:

• Solve 300+ LeetCode problems across all difficulty levels
• Master 15+ essential coding patterns
• Achieve consistent performance in mock interviews
• Build confidence for system design discussions

This repository is actively maintained as part of a structured approach to DSA mastery and technical interview preparation. Regular updates include new problems, improved solutions, and enhanced tracking mechanisms.