[Year 12 SofDev] Past SD exams - pseudocode algorithms with errors - a collection - Updated with answers

Mon Oct 17 12:04:43 EST 2011

Hi folks,
Can someone please help me out with q3b from the 2007 exam. Below is the algorithm, the question and the answers from the examiner's report. Even taking into account that the examiners switched the array indexes in the question, I still have issue when I desk check.
The algorithm works on the assumption that we essentially start by looking at IngredientID =2 which gives the result of zero
Then on the next pass we look at IngredientID = 3 which gives the result of 2
Then on the last pass we look at IngredientID = 4 which doesn't exist, so it returns a null value.
The examiner report says the answer would be 0, 0, 2 which I don't get.
I'm not sure if I've spent too long staring at these things and am chasing ghosts. Any help would be appreciated
Thanks
Damien

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[cid:image005.png at 01CC8CC4.F3BB5180]
Examiners report
[cid:image007.png at 01CC8CC4.F3BB5180]

Damien Atkinson-Buck
Member of Academic Staff (Secondary)
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From: Nate Morris [mailto:N.Morris at kardinia.vic.edu.au]
Sent: Thursday, 22 September 2011 3:39 PM
To: sofdev at edulists.com.au
Subject: [Year 12 SofDev] Past SD exams - pseudocode algorithms with errors - a collection - Updated with answers

Hope this helps, just chucked in all the answers from your website Mark.

Nate Morris
Senior Teacher
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