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

Mon Oct 17 17:02:43 EST 2011

Thanks Heath

Damien Atkinson-Buck
Member of Academic Staff (Secondary)
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From: Matheson, Heath A [mailto:Matheson.Heath.A at edumail.vic.gov.au]
Sent: Monday, 17 October 2011 2:22 PM
To: Year 12 Software Development Teachers' Mailing List
Subject: Re: [Year 12 SofDev] Past SD exams - pseudocode algorithms with errors - a collection - Updated with answers

Hi Damien,

I think you're all fine except that "Until Ingredient_ID = Num_Ingredients" in the fourth last line. As Num_Ingredients is 3 this means the last pass is IngredientID3 rather than 4.
 Qty1 was set to zero when the array was set up.

Hope this helps
Heath

From: sofdev-bounces at edulists.com.au [mailto:sofdev-bounces at edulists.com.au] On Behalf Of ATKINSON-BUCK, Damien
Sent: Monday, 17 October 2011 12:05 PM
To: Year 12 Software Development Teachers' Mailing List
Subject: Re: [Year 12 SofDev] Past SD exams - pseudocode algorithms with errors - a collection - Updated with answers

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

[cid:image006.png at 01CC8CEE.94F5E5F0]

[cid:image007.png at 01CC8CEE.94F5E5F0]
Examiners report
[cid:image008.png at 01CC8CEE.94F5E5F0]

Damien Atkinson-Buck
Member of Academic Staff (Secondary)
________________________________

[Description: Description: cid:image002.jpg at 01CA7D93.5FFD22D0]<http://myivanhoe.net/>

PO BOX 91 The Ridgeway, Ivanhoe, Victoria 3079 Australia
Telephone +61 3 9490 3848 Facsimile +61 3 9490 3490
mailto:damien.atkinson-buck at ivanhoe.com.au
http://myivanhoe.net<http://myivanhoe.net/>

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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Kardinia International College
PO Box 17, Geelong, Victoria, 3220, Australia
Ph: +61 3 5278 9999          Fax:  +61 3 5278 9529
I n.morris at kardinia.vic.edu.au<mailto:n.morris at kardinia.vic.edu.au> I Click to find KIC<http://maps.google.com.au/maps?hl=en&sll=-25.335448,135.745076&safe=on&ie=UTF8&q=Kardinia+International+College,+2+Kardinia+Drive,+Bell+Post+Hill+Victoria+3215&fb=1&gl=au&hq=Kardinia+International+College,+2+Kardinia+Drive,+Bell+Post+Hill+Victoria+3215&hnear=Kardinia+International+College,+2+Kardinia+Drive,+Bell+Post+Hill+Victoria+3215&view=map&cid=18333593491172431013&ll=-38.109438,144.327704&spn=0.00531,0.011319&t=h&z=17> I www.kardinia.vic.edu.au I

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