OCR A Level Computer Science Algorithms and programming June 2025 mark scheme H446/02
Practise the past exam questions by topic
Computational methods23 Qs
Recursion7 Qs
Sequence, selection & iteration15 Qs
Standard sorting algorithms10 Qs
Algorithm efficiency & Big O notation10 Qs
Standard searching algorithms7 Qs
Algorithms for the main data structures22 Qs
Stacks & queues11 Qs
Dijkstra's & A* shortest path algorithms7 Qs
Designing, creating & refining algorithms15 Qs
Integrated Development Environment (IDE)7 Qs
Sub programs: functions & procedures16 Qs
Variables, constants, inputs, outputs & assignment5 Qs
Trees & binary search trees13 Qs
Linked lists9 Qs
Object-oriented programming15 Qs
Thinking ahead5 Qs
+13 more
8 questions
- Q1 - 22 marks - Computational methods, Recursion, Sequence, selection and iteration, Standard sorting algorithms
- Q2 - 14 marks - Algorithm efficiency and Big O notation, Computational methods, Standard searching algorithms
- Q3 - 17 marks - Algorithms for the main data structures, Sequence, selection and iteration, Stacks and queues
- Q4 - 9 marks - Computational methods
- Q5 - 11 marks - Computational methods, Dijkstra's and A* shortest path algorithms
- Q6 - 18 marks - Designing, creating and refining algorithms, Integrated Development Environment (IDE), Sub programs: functions and procedures, Variables, constants, inputs, outputs and assignment
- Q7 - 9 marks - Algorithms for the main data structures, Trees and binary search trees
- Q8 - 40 marks - Algorithms for the main data structures, Computational methods, Linked lists, Object-oriented programming, Sub programs: functions and procedures, Thinking ahead
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