Add hungarian_algorithm.cpp

[cruiz24]

About the Hungarian Algorithm: The Hungarian Algorithm (Kuhn-Munkres Algorithm) is a combinatorial optimization algorithm that solves the assignment problem in polynomial time. It finds an optimal assignment of n workers to n jobs where:

Each worker can be assigned to exactly one job
Each job can have exactly one worker
Each worker-job assignment has an associated cost
The goal is to minimize the total cost of assignments
This is a complex algorithm with O(n³) time complexity that uses concepts from graph theory and linear programming. It's widely used in operations research, logistics, task scheduling, and computer vision applications like feature matching.

The implementation includes:

• A full class-based implementation of the algorithm
• Detailed comments explaining each step
• An example usage with a sample cost matrix
• Utility functions for displaying results

[github-actions]

🎉 Welcome to Hacktoberfest 2025, @cruiz24! 🎃

Thank you for your first contribution to our DSA repository! Here's what happens next:

🔍 Automatic Checks

• ✅ Code Validation: Passed
• 🧪 Compilation Tests: Passed

📋 Next Steps

🎯 Great job! Your code compiled successfully. Maintainers @Karanjot786 and @Pradeepsingh61 will review your PR soon.

🎁 What You Get

• 🏆 Hacktoberfest Credit: This PR counts toward your 6 PR goal for exclusive T-shirt + Tree!
• 🌟 Hall of Fame: You'll be featured in our contributors list
• 📚 Learning: Code review feedback from experienced developers

💡 Tips for Success

• Follow our Contributing Guidelines
• Add comments explaining your algorithm
• Include time/space complexity analysis
• Test your code before submitting

Welcome to the community! 🚀

[github-actions]

🤖 Automated PR Status

🔍 Code Validation

✅ Passed - File naming and structure look good!

🧪 Compilation Tests

✅ Passed - All code compiles successfully!

📋 Overall Status

🎉 Ready for Review - Your PR has passed all automated checks!
👥 Maintainers have been notified for review.

---

This comment was generated automatically. Checks will re-run when you push new commits.