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Representing algorithms

Representing algorithms

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Question 45

The subroutine CHAR_TO_INT(character) returns the integer ASCII value of a character. For example,

  • CHAR_TO_INT('A') returns the value 65
  • CHAR_TO_INT('Z') returns the value 90
  • CHAR_TO_INT('@') returns the value 64
  • CHAR_TO_INT('[') returns the value 91

Develop an algorithm, using either pseudo-code or a flowchart, that:

  • asks the user to enter a single character
  • outputs 'UPPER' if the user has entered an uppercase alphabetic character
  • outputs 'NOT UPPER' if the user has entered any other character.

You must use the built-in CHAR_TO_INT subroutine in your answer.

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Markscheme

Representing algorithms Questions

  1. GCSE
  2. /Computer Science
  3. /Representing algorithms

208 exam-style questions on AQA GCSE Computer Science Representing algorithms. Each one has a worked solution and a mark scheme showing where the marks go.

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