Hartismere School

Est. 1451. An outstanding coeducational secondary school & sixth form college and England's first academy

Home Login

Coding Challenges for GCSE and A Level Computer Science

Attached is a collection of coding challenges. The best way to learn and get better at programming is to practise, but it is often difficult to know what to make. Working through these challenges will increase you skill set and familiarity with programming. 

Remember, we program using python in high school (years 7-11) and C# at sixth form. 

Programming IDEs (or you can code online using Replit)

Python: Thonny, Hartismere python online (no saving)

C#: Sharp Develop (old but lightweight), Visual Studio Community

Documents

In this section...

Taking A Level Computer Science

A Level CS: Algorithm Assembly Instructions

How robots are taking over warehouse work

Toyota Virtual Plant Tour

See also...

Languages

Design & Technology Trips

Year 7

Binary addition 2

GCSE Past papers and mark schemes

Careers & Futures Programme Feedback - Parents

Charities

Year 10

Creative and Performing Arts

Programming

Explore...

Code.Org - Express computer science course

GCSE CS: 1.5 Networks - TCP/IP Layers and Protocols

Hartismere Art & Photography Exhibition 2025

The Lost Boys - the vampires attack

MegaProcessor - the largest CPU in the world

C# Cook Book // Mastermind (Console)

Dracula, 1931 - Don't look in the mirror

The Wave: Cinema's most terrifying lesson

How to analyse sound in films

C# Cook Book // Snake (GUI)

New...

School Policies

Local Governing Body Information

Hartismere School & Sixth Form College

Cover Supervisor

Term dates

Completing the Award

January 2026 Examinations

Hartismere Staff Sketchbook Club Exhibition

Discover...

Programming GCSE CS A Level CS Computer Science GCSE C# Documentation English Literature YouTube Algorithms Cover Staff Information Jobs Year 10 Education YOUNG Key Stage 3 Private Study Website Bullying Uniform Community

Uh-oh - we were unable to load our website on your browser so we're showing you a plain HTML version.

We use many features found in modern browsers and regrettably yours seems incompatible.

However this legacy version contains (very, very nearly) all the same content. Each page is rendered on our server and doesn't rely on any browser features except the odd font. It doesn't even need Javascript or fancy CSS. It's like being in 1995!

Your browser is reporting itself to us as CCBot/2.0 (https://commoncrawl.org/faq/). Please consider updating your browser to make the most of our website.

If you would like to try our proper website again - you can do so here...