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O-LevelComputer ScienceAlgorithm design and problem-solving2210/21 · May/June 2016 · Q54 Marks

REPEAT ... UNTIL is one type of loop structure. Identify and describe two other types of loop structure that you could use when writing pseudocode.

  1. (a)Identify and describe two other types of loop structure that you could use when writing pseudocode. Loop structure 1 Description. Loop structure 2.. Description.[4]

Mark scheme

Marking points from the official mark scheme (May/June 2016). The mark or mark type is shown in brackets.

  1. [4] 5 – FOR (... ΤΟ NEXT)... – a set number of iterations – WHILE (... DO ENDWHILE) ... – used where the loop may never be executed/whilst a specified condition exists

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About this question

Topic
Algorithm design and problem-solving, O-Level Computer Science (syllabus 2210). Structured question, 4 marks.
Source
O-Level Computer Science, May/June 2016 Paper 2 Variant 1, question 5.

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