O-LevelComputer ScienceAlgorithm design and problem-solving2210/22 · May/June 2017 · Q28 Marks
Section B
- (a)Write an algorithm to input three different numbers, and then output the largest number. Use either pseudocode or a flowchart.[4]
- (b)Give two sets of test data to use with your algorithm in part (a) and explain why you chose each set. Test data set 1 Reason Test data set 2 Reason[4]
Mark scheme
Marking points from the official mark scheme (May/June 2017). The mark or mark type is shown in brackets.
- [1] Input three numbers
- [1] Attempt to select largest number
- [1] Working method
- [1] print out largest number
- [1] for each data set and 1 mark for the matching reason.
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