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1. Tax Calculation & Logical Errors | Identifying CASE Condition Mistakes & Improving Data Representation – Detecting errors in tax rate selection, suggesting corrections, and optimizing tax rate storage.

2. Time Handling & Clock Updates | Implementing a 24-hour Clock with Procedures – Writing pseudocode for `Tick()` to manage seconds, minutes, hours, alarms, and midnight resets.

3. File Handling & Line Processing | Extracting & Modifying Specific Lines from a Text File – Designing an algorithm to read the last three lines, modifying it to start from a given line number.

4. Error Handling & Data Validation | Implementing Safe Arithmetic Operations – Preventing division errors, defining a structured return type, and implementing validation for numerical inputs.

5. Exam Grading & Candidate Evaluation | Grade Boundaries & Reassessment Criteria – Identifying scores near grade thresholds, flagging exams for review, and writing `CheckMark()` pseudocode.

6. File Writing & Candidate Tracking | Logging & Updating Candidate Records in a File – Implementing `CheckAll()` to record flagged candidates and modifying it to append results to an existing file.

CIE AS & A Level Computer Science (9618) Nov 2024 Computer Science (9618) directory

Laura Bellini

Classification: Paper 2

Page count: 20

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Last update: 4 months ago

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Computer Science 9618,21 Oct Nov 2024 | Cambridge AS - A Level Past Papers With Mark Scheme

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