AS & A Level Computer Science (9618) — May–June 2025, Paper 41
3 questions · every question answerable online with instant point-by-point AI marking against the official mark scheme.
Start with Question 1 →Question 1 · 20 marks · Algorithms and data structures - queues
A program stores positive integers in a circular queue. The queue is stored as a global 1D array of 20 integers with the identifier Queue. Each index is initialised with the data…
Answer this question and get it marked →Question 2 · 25 marks · File processing and exception handling - text files
A program reads data from a text file, splits the data depending on its content and stores the separated data into different files. The text file TheData.txt contains 72 lines of…
Answer this question and get it marked →Question 3 · 30 marks · Computational thinking and problem-solving - binary trees; Object-Oriented Programming
A program stores data in a binary tree that is designed using Object-Oriented Programming (OOP). The tree stores data in ascending numerical order, for example: a tree with root…
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