Lesson 77 of 79 · 15 minutes

Searching and sorting: Library Hunt

Find books on the shelves while the game counts every step.

What you'll learn

• Searching in order
• Measuring the work
• Binary search
• Swapping two items
• A simple sort

Each idea opens with a short narrated video, about 2 minutes in all. Then you put it to work in the game.

The six levels

1. Look Along the Shelf Change it
2. Count the Steps Copy and type
3. Halve the Shelf Fill the gap
4. Wrong Way Round Write it
5. One Pass Short Fix it
6. Beat the Clock Boss level

The levels go from changing one word, to writing the code on your own. The boss level changes every time you play.

New to Python? Start with the free games in Module 1.