Designing, creating and refining algorithms

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An algorithm is required to process astronomical observations from a telescope.

The algorithm must identify which star has the brightest apparent magnitude (where a lower numerical value of apparent magnitude represents a brighter star, which can include negative values).

Write an algorithm to:

prompt the user to enter a star's catalog ID and its apparent magnitude, or to enter "STOP" to finish entering data
repeatedly take star catalog IDs and apparent magnitudes as input until the user enters "STOP"
determine which star has the lowest apparent magnitude (the brightest star)
output the catalog ID and the apparent magnitude of this brightest star in an informative message.

You must use either:

OCR Exam Reference Language, or
A high-level programming language that you have studied

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Designing, creating and refining algorithms Questions

Practise OCR GCSE Computer Science Designing, creating and refining algorithms with exam-style questions for GCSE Computer Science. 50 questions, matched to the OCR GCSE Computer Science (J277) specification and written in Component 01 and Component 02 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.