Write the pseudocode statements to perform this task: • accept the input of a whole number from 1 to 4 inclusive • use a CASE statement to: Ο output the number (1 to 4 inclusive) that was entered Ο output the word "ERROR” if a 1 to 4 inclusive number was not entered.

Mark scheme

Marking points from the official mark scheme (May/June 2024). The mark or mark type is shown in brackets.

1. [5] One mark per mark point MP1 Correct input statement with appropriate variable MP2 Elements of selection statement present - CASE OF ENDCASE MP3 At least one correct branch in the case statement MP4 All branches from 1 to 4 correct MP5 Correct use of OTHERWISE with correct output. For example: INPUT Number CASE OF Number 1: OUTPUT Number 2: OUTPUT Number 3 : OUTPUT Number 4 : OUTPUT Number OTHERWISE OUTPUT "ERROR" ENDCASE Or INPUT Number CASE OF Number 1 : OUTPUT 1 2 : OUTPUT 2 3 : OUTPUT 3 4 : OUTPUT 4 OTHERWISE OUTPUT "ERROR" ENDCASE