Welcome to "Hashing, Dictionaries, and Sets in Python"! This course will unlock the power of these essential data structures, boosting your efficiency in coding.

Hashing, dictionaries, and sets are crucial for fast and efficient data handling. They form the backbone of many software solutions and algorithms.

• Hash Functions: Discover how hash functions create unique data mappings, enabling quick lookups.
• Dictionaries: Learn to store and retrieve data with key-value pairs for optimal performance.
• Sets: Understand how sets manage unique elements efficiently for fast operations.
• Collision Handling: Explore techniques to manage hash collisions for reliable data storage.
• Complexity Analysis: Analyze the efficiency of operations to write optimized code.

What makes learning these concepts on CodeSignal special? First of all, it's Cosmo, your AI tutor and guide who will guide you on your whole journey. More importantly, all learning on this platform is centered around hands-on practice so you can turn knowledge into skills.

In each lesson, you can try out the code you're learning by clicking the ▶️ button.

Python
Copy to clipboard
1# Python Dictionary Example
2student_scores = {'Tom': 85, 'Serena': 92, 'Alex': 78, 'Nina': 88}
3print(student_scores['Tom'])  # Outputs: 85

Last but not least, after each lesson like this one, you'll get a set of practice exercises to build your skills with Cosmo!

Ready to try your first practice? Let's go!