📚 C++ DSA Projects Collection

This repository contains two mini projects implemented in C++ using Data Structures & Algorithms (DSA) concepts:

• 🏥 Hospital Management System (Priority Queue + Map)
• 📖 Library Management System (Map + File Handling)

These projects demonstrate real-world applications of STL containers, file handling, and object-oriented programming.

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🚀 1. Hospital Management System

📌 Features

• Add new patients
• Serve patients based on severity (priority)
• Display all patient details
• Persistent storage using file handling

🧠 DSA Concepts Used

• map → Stores patient records with unique ID
• priority_queue → Handles patients based on severity (higher severity served first)
• Custom comparator for priority queue

⚙️ How It Works

• Patients are stored in a map for quick lookup
• A priority queue ensures critical patients are treated first
• Data is saved in patientinfo.txt for persistence

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📖 2. Library Management System

📌 Features

• Add new books
• Delete books
• Search books by ID
• Issue and return books
• Display all books
• File-based storage

🧠 DSA Concepts Used

• map → Stores books with unique ID
• File Handling → Data persistence using library.txt

⚙️ How It Works

• Books are stored in a map for fast access
• Each book has an issued/available status
• Data is saved and loaded from a file

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🛠️ Technologies Used

• C++

• STL (Standard Template Library)

  • map
  • priority_queue
  • vector

• File Handling (ifstream, ofstream)

• Object-Oriented Programming (Classes & Objects)

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📂 File Structure

C-Projects/
│
├── Hospital.cpp
├── Library.cpp
├── patientinfo.txt
├── library.txt
└── README.md

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▶️ How to Run

Compile

g++ Hospital.cpp -o hospital
g++ Library.cpp -o library

Execute

./hospital
./library

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📸 Sample Functionalities

Hospital System

• Add patient with severity
• Automatically serves most critical patient first

Library System

• Issue/Return books
• Track availability status

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⚠️ Notes

• Ensure .txt files exist or will be created automatically
• Input should be valid to avoid runtime errors

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💡 Future Improvements

• Add GUI interface
• Use database instead of file storage
• Improve input validation
• Add search by name (not just ID)

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👨‍💻 Author

Karthik

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