9618 · Cambridge International A Level
9618/41
Practical
Computer Science · June 2025 · Variant 1
Relative difficulty
Analysis source: Cambridge Assessment International Education
Analysis aligned to the official syllabus and assessment design.
3.6 / 5
300
450 min
Object-Oriented Programming and Data Structure Implementation in High-Level Languages
Cohort performance
Session statistics from official examination reports
Total marks
300
Duration
450 min
Session difficulty
3.6 / 5
Key examiner messages
Top priorities from the principal examiner before you revise
Comprehensive analysis of the May/June 2025 examination series for Cambridge International AS & A Level Computer Science (9618), covering Papers 11, 21, 31, and 41.
Question difficulty map
How candidates performed on each question in this series
No data available in official reports
Assessment objectives
Skill and AO weighting from official examiner commentary
Skill weighting
Shows the skill mix this paper tested most heavily.
Programming Proficiency
Weight: 7100%Algorithmic Design
Weight: 571%Theoretical Understanding
Weight: 343%Mathematical
Weight: 114%
Method marks watchlist
Where working, steps, or method marks were commonly lost
No data available in official reports
Recurring mistakes across years
Themes examiners flag in multiple recent sessions for this subject
No data available in official reports
Question choice intelligence
Mean scores and popularity for optional questions (HKDSE electives)
No data available in official reports
Level exemplars
What candidate scripts at each grade level looked like
No data available in official reports
Grade & admission context
How marks relate to grade thresholds and entry standards
Report type
Cambridge Principal Examiner Report — component performance and international standards
Level A*
Approx. 76% of maximum mark
Level A
Approx. 65% of maximum mark
Level B
Approx. 54% of maximum mark
Level C
Approx. 44% of maximum mark
Level D
Approx. 34% of maximum mark
Level E
Approx. 24% of maximum mark
Deep insights
What top candidates did
Techniques and approaches examiners rewarded in this series
No data available in official reports
Command word playbook
How to match each command word to the expected response style
Give reasons and link mechanism to outcome; each point needs a because/so chain.
State features in sequence or list observable properties — do not explain causes unless asked.
Match the expected response style for “Write” questions.
Name or point to the specific feature asked for — avoid extra explanation.
Match the expected response style for “State” questions.
Match the expected response style for “Complete” questions.
Show formula, substitution, and unit; method marks need visible working.
Time traps
Sections where candidates spent disproportionate time relative to marks
Min per mark: 1.2
Min per mark: 0.1
Min per mark: 0
Syllabus traceability
Topics linked to questions and mark weighting in this session
Further Programming
94 marks this session
Algorithm Design and Problem-solving
36 marks this session
Programming
18 marks this session
MCQ trap analytics
Commonly chosen wrong options from examiner commentary
No data available in official reports
Topic heatmap across years
Mark concentration by topic and exam year for this subject
Mark intensity
Further Programming
Further Programming (A Level)
Further Programming (A Level content)
Algorithm Design and Problem-solving
Programming (AS Level)
Data Representation (A Level content)
Computational thinking and Problem-solving (A Level)
Programming (AS Level content)
Difficulty trend
How session difficulty has shifted across recent years
Paper comparison
Marks and duration breakdown across papers in this session
Paper 11 (Theory Fundamentals):
Paper 21 (Fundamental Problem-solving and Programming):
Paper 31 (Advanced Theory):
Paper 41 (Practical):
Marks you can still earn
Where valid approaches outside the mark scheme may still gain credit
No data available in official reports
Practise what examiners flagged
Target weak topics from this report inside the Revui app
Further Programming
94 marks this session
Practise in RevuiAlgorithm Design and Problem-solving
36 marks this session
Practise in RevuiProgramming
18 marks this session
Practise in RevuiSelf-diagnostic checklist
Key actions before you sit this paper — copy and tick off as you revise
- 1Message
Comprehensive analysis of the May/June 2025 examination series for Cambridge International AS & A Level Computer Science (9618), covering Papers 11, 21, 31, and 41.
Teacher briefing pack
One-page session summary for tutors and classroom review
June 2025 2025
Computer Science
Comprehensive analysis of the May/June 2025 examination series for Cambridge International AS & A Level Computer Science (9618), covering Papers 11, 21, 31, and 41.
Comprehensive analysis of the May/June 2025 examination series for Cambridge International AS & A Level Computer Science (9618), covering Papers 11, 21, 31, and 41.
- Total marks
- 300
- Duration
- 450 min
- Session difficulty
- 3.6 / 5
Session analysis
Comprehensive analysis of the May/June 2025 examination series for Cambridge International AS & A Level Computer Science (9618), covering Papers 11, 21, 31, and 41.
Updated Jun 12, 2026
Paper breakdown
Paper 11 (Theory Fundamentals):
Paper 21 (Fundamental Problem-solving and Programming):
Paper 31 (Advanced Theory):
Paper 41 (Practical):
Top chapters
Exam structure insights
Marks by chapter
See where the marks were concentrated so revision time goes to the highest-value topics.
Mark accessibility
Estimate which marks were basic, mid-level, or high-difficulty.
73% within easy or medium reach
Command word frequency
Spot common command words so answers match the expected response style.
Question type mix
Compare the mark share of each paper section and question type.
Programming & Pseudocode Implementation
120·12·40%
Theoretical Explanation & Analysis
110·18·37%
Diagrammatic & Trace Table Completion
40·8·13%
Data Representation & Calculation
30·6·10%
Study ROI
Bigger bubbles recur more often; higher bubbles carry more marks, helping you rank revision priorities.
Time vs marks
Compare marks with suggested time allocation to plan exam pacing.
Paper 11 (Theory Fu…
37.55 m/minPaper 21 (Problem-s…
0.83 m/minPaper 31 (Advanced …
15.02 m/minTotal marks
1577
Total time
160 min
Avg pace
9.86
Next-year prediction
Topics worth watching next year, with the reason shown directly below each bar.
Big O Notation & Algorithm Complexity
85%85%
Floating Point Arithmetic Overflow & Underflow
80%80%
Client-Side Scripting & Web Technologies
75%75%
Exam tips
Paper format
- Duration
- 2h 30min
- Total marks
- 75
- Weighting
- 25%
- Question types
- OOP Class Structure / Inheritance Declaring, Linear / Queue manipulation logic implementation, Recursive iteration counting code block, String Custom Processing Engine without split()
Analysis is paraphrased for study purposes. Always verify against the official examiner report and mark scheme.