Lecture 29: The Trouble with Concrete Types - Richard Buckland UNSW

The first 17.5 minutes are a discussion of what the task2 diaries revealed: poor time management (eek!) Richard confesses he is bad at time management too and makes some suggestions. The remainder of the lecture is setting up for ADTs (introduced in the next lecture). Task2 (the sudoku solver) is used as motivation. Why do we want to break the problem into separate quasi-independent files? (A: Metcalf's law) What was the relation between the sudokoGrid type and its interface? What is the subtle problem Richard keeps alluding to with respect to the way this separation was implemented? Another Richard, or perhaps Alex, comes up with a better way of implementing sudukoGrid.c - is this as wonderful as it seems or have we unearthed a mare's nest? If only there was some way of solving this problem ... (dissolve to lecture 30)

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Lecture 1 - Prestressing System

Prestressed Concrete Structures



http://www.youtube.com/watch?v=4KYPltsNAWs&hl=en

Bored pile Foundation

BOB MARLEY ( Concrete Jungle HQ )

www.myspace.com Bob Marley Concrete Jungle Lyrics No sun will shine in my day today; (no sun will shine) The high yellow moon won't come out to play: (that high yellow moon won't come out to play) I said (darkness) darkness has covered my light, (and the stage) And has changed my day into night, yeah. Where is the love to be found? (oo-ooh-ooh) Won't someone tell me? 'Cause my (sweet life) life must be somewhere to be found - (must be somewhere for me) Instead of concrete jungle (jungle!) Where the living is harder (concrete, jungle!). Concrete jungle (jungle!): Man you got to do your (concrete, jungle!) best. Wo-ooh, yeah. No chains around my feet, But I'm not free, oh-ooh! I know I am bound here in captivity; G'yeah, now - (never, know) I've never known happiness; (never, know) I've never known what sweet caress is - Still, I'll be always laughing like a clown; Won't someone help me? 'Cause I (sweet life) - I've got to pick myself from off the ground (must be somewhere for me), he-yeah! - In this a concrete jungle (jungle!): I said, what do you got for me (concrete, jungle!) now, o-oh! Concrete jungle (la la-la!), ah, won't you let me be (concrete, jungle!), now. Hey! Oh, now! --- /Guitar solo/ --- I said that life (sweet life) - it must be somewhere to be found (must be somewhere for me) Oh, instead of concrete jungle (jungle!) - illusion (concrete, jungle!) - Confusion (confusion). (concrete, jungle!) Eh! Concrete jungle (jungle!): baby, you've got it in. Concrete ...



http://www.youtube.com/watch?v=upaqXW3qS-g&hl=en

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