Hartismere School

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

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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...

Toyota Virtual Plant Tour

How robots are taking over warehouse work

A Level CS: Algorithm Assembly Instructions

Taking A Level Computer Science

See also...

Student resources

Pastoral Programme

Languages

Year 12 revision

Learnit BIOLOGY

Binary addition 1

CEIAG (Careers Education, Information, Advice & Guidance)

RSHE (Relationships, Sex and Health Education)

Design and Technology

A Level Computer Science

Explore...

C# Cook Book // Conversation (Console)

Do the Right Thing Scene Analysis

Candidate Information - Written exams

MegaProcessor - the largest CPU in the world

C# Cook Book // Word Search (Console)

The Wave: Tim becomes Wenger's bodyguard (clip 6 of 9)

C# Cook Book // Tic Tac Toe (GUI)

The Wave: the first autocracy lesson, part 1 (clip 2 of 9)

On your exam day

Correspondence from the Exams Office

New...

Young Performers Theatre Workshops - For 12-18's

Summer 2026 Examinations

Our curriculum

Artist in Residence for 2026

Parents Evening :: Year 9

Meshes of the Afternoon - Maya Deren (1943)

Head of Department Psychology & Sociology

March 2026 Year 11 Mocks

Discover...

Programming GCSE CS A Level CS Computer Science GCSE C# Photography Videos Physics Creative iMedia Careers and Training Support Aspen Russell Revision Psychology History Sport Past Papers Business Studies Miss Baker Repl.It GCSE Drama

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