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5 marksAlgorithm Verification and Development

CAPE Computer Science Unit 1 · 2012 · Paper 2 · Question 3(c)(ii)

A primary school surveys 150 students on their favourite colours among red, blue, green, or none. All votes are valid.

Write an algorithm to find and print the TOTAL number of students that voted for red, blue or green.

The mark scheme is shown once you've answered.

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Other parts of this question

  1. 3(a)Explain the role of an algorithm in the problem-solving process.[2 marks]
  2. 3(b)(i)Which of the algorithms illustrates bounded iteration? Justify your answer.[3 marks]
  3. 3(b)(ii)Which of the algorithms illustrates unbounded iteration? Justify your answer.[3 marks]
  4. 3(c)(i)Write an algorithm to find and print the number of students that voted for EACH of the colours: red, blue, green.[5 marks]
  5. 3(d)Write an algorithm that uses iteration to find the sum of all multiples of 4 and all multiples of 7 between m (inclusive) and n (inclusive) where m and n are…[7 marks]

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