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Computer Science 9618/22 May June 2021 | Cambridge AS Level Past Papers With Mark Scheme

1. Data type identification and evaluation of pseudocode expressions; distinguishing selection, assignment, and iteration statements.

2. State-transition diagram analysis; identification of transitions, outputs, and halting states; determining outputs and states based on input sequences.

3. Abstract Data Types (ADTs); identification of nodes, root, and value meanings; reordering elements alphabetically.

4. Algorithm design for assigning grades and calculating average marks; implementation steps for structured outputs.

5. Array-based problem-solving; pseudocode for random integer assignment, range filtering, ensuring unique values, and modifications to the sorting algorithm.

6. Procedure development for counting vowels and alphabetic characters; structured storage and iteration logic.

7. String formatting procedure to handle spaces and case adjustments; black-box testing strategies for ensuring correctness.

8. Module creation for generating initials from full names while ignoring specific words; iterative word-by-word processing using pseudocode.

Laura Bellini

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