Checkpoint: problem solving
Five problems on your own: count the work, search sorted data, recurse through nested lists, merge sorted rankings and replace a slow search with a lookup.
- The skill
- Pick the right tool for a problem: a lookup, a binary search, recursion or a merge, and prove it works.
- You make
- Five small tools for games and music data, written without scaffolding.
Premium lesson
£7.99 a month or £59 a year. Cancel any time.
Builds on 41 Fast lookups and memory. Free to try: Python Foundations and the playground.
Cleared
Go back to
You can now
Save your progress to a free account
That is every lesson in Python.
Step 1 of 6
exercise_1.py
You've reached the good stuff.
5 exercises in this lesson, checked as you type. Premium opens every lesson after Foundations, in all four courses.
Python 3.13