PythonHub

A Flutter mobile app featuring 100 curated Python coding problems to help you prepare for senior engineer interviews.

Features

• 100 Python Problems across multiple categories (Arrays, Strings, Linked Lists, Trees, Dynamic Programming, etc.)
• Problem Details with difficulty level, description, constraints, and examples
• Solutions with clean, well-commented Python code and complexity analysis
• Favorites to bookmark problems for quick revision
• Progress Tracking with solved/completed statistics
• Dark Theme inspired by GitHub's dark mode

Screenshots

Home	Problem List	Detail	Solution
Home screen with categories and stats	Browse problems by category	Read problem statement and constraints	View Python solution and complexity

Getting Started

Prerequisites

• Flutter SDK (>= 3.4.0)
• Android Studio / Xcode (for emulators)
• ADB (for physical Android devices)

Run

flutter pub get
flutter run

Build Release APK

./install.sh

This script:

1. Cleans the build
2. Fetches dependencies
3. Builds a release APK
4. Installs it on your connected Android device via ADB

Project Structure

lib/
├── data/
│   └── problems.dart          # Problem dataset
├── models/
│   └── problem.dart           # Problem model
├── providers/
│   └── problem_provider.dart  # State management
├── screens/
│   ├── home_screen.dart
│   ├── problem_list_screen.dart
│   ├── problem_detail_screen.dart
│   ├── solution_screen.dart
│   └── favorites_screen.dart
└── main.dart

Tech Stack

• Flutter — Cross-platform UI framework
• Dart — Programming language
• Provider — State management

Platforms

• Android
• iOS
• macOS
• Windows
• Linux
• Web

License

MIT