✅ Terminal Todo App with Undo & Priority Support

A powerful yet minimal C++ command-line Todo application with support for undoing actions, marking tasks as important, and persistent file storage.

Designed for developers who appreciate clean code, functional CLI tools, and efficient task tracking.

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🚀 Features

• 📌 Add tasks quickly via terminal
• 🗑️ Remove tasks by index
• ✅ Mark tasks as completed
• 🎯 Mark tasks as important (important tasks are listed first)
• 🔁 Undo support for add/remove operations
• 💾 Persistent storage in a simple tasks.txt file
• 🧼 Clear all tasks with a single command
• 🧠 Smart formatting and readable CLI output

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🧪 Demo

Add Task

Remove Task

Mark Done

Add Important Task

List Tasks

Undo

Clear All

Exit

1 Task: Study C++ STL Added.

4 Important Task: Complete GitHub README (!) Added.

5 --- TO DO --- 0 - [ ] Complete GitHub README (!) 1 - [ ] Study C++ STL

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🛠️ How to Build & Run

📦 Requirements

• A C++ compiler (GCC, Clang, MSVC, etc.)

🔧 Build

g++ main.cpp -o todo
▶️ Run
bash
./todo
All task data will be saved in tasks.txt in the same directory.

📁 File Structure
bash
todo-app/
├── main.cpp        # Main application source code
├── tasks.txt       # Task data (auto-generated)
├── .gitignore      # Ignores binary + task file
└── README.md       # Project documentation
🧩 Possible Improvements
⏰ Due dates & scheduling

🔍 Search & filter support

📊 Export tasks to CSV

🖥️ GUI version with Qt or web-based frontend

🤝 Contributing
Pull requests are welcome. Feel free to fork the project and submit improvements.