** UnhandledExceptionEventHandler :: OFFICIAL LC / CHATTER THREAD ** - Page 277 - Computer Technical Help

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Page 277 of 1603

First

77 177 227 257 267 272 273 274 275 276 277 278 279 280 281 282 287 297 327 377 477 777 1277

Last

01-07-2013 , 12:28 PM

#6901

tyler_cracker

Carpal \'Tunnel

Join Date: Apr 2005 Posts: 15,828

Quote:

Originally Posted by Fubster

seems absolutely ridiculous to define N as a preprocessor directive

it's a bog-standard idiom in C.

Quote

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01-07-2013 , 02:32 PM

#6902

gaming_mouse

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Join Date: Oct 2004 Posts: 13,786

Quote:

Originally Posted by jjshabado

Gah, this tilts me like crazy. We had an intern a couple of months ago and my most common feedback in code reviews was to rewrite method signatures to be more sensible. Writing good method signatures is a major part of writing good interfaces which is in turn a major part of writing good code.

It's especially frustrating because this is something that can be taught and explained really easily.

a better design than both cases is probably a grades object with grades.mean() and grades.variance()

Quote

01-07-2013 , 03:31 PM

#6903

jjshabado

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Join Date: Jul 2006 Posts: 22,732

Quote:

Originally Posted by gaming_mouse

a better design than both cases is probably a grades object with grades.mean() and grades.variance()

Probably, but I don't necessarily have a problem with stand alone functions (depending on the language).

Edit: As opposed to the signature of "variance(grades, mean)" which is just always wrong.

Quote

01-07-2013 , 03:41 PM

#6904

gaming_mouse

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agreed

Quote

01-07-2013 , 03:43 PM

#6905

Neil S

King of the sidebar

Join Date: Sep 2004 Posts: 20,767

Yup. If you're worried about wanting to cache the mean value, wrap it all in an object and cache it there.

Quote

01-07-2013 , 05:29 PM

#6906

Xhad

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Join Date: Jul 2005 Posts: 10,962

I actually have a class lying around from a simulations course that does the caching mean/variance thing. One of the things I learned in making it was that once you have an initial mean/sd calculated, you can update the stats for a new data point in O(1) time without even needing to store the data you already processed as long as you keep track of how many data points you've accepted.

Of course, I know this is probably way more complicated than what they were going for, so my real reaction was "So what if we calculate mean twice? It's O(n) either way! How many grades can there be?!?"

Quote

01-07-2013 , 09:31 PM

#6907

tyler_cracker

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xhad,

well, there could be N grades...

Quote

01-07-2013 , 09:39 PM

#6908

Neil S

King of the sidebar

Join Date: Sep 2004 Posts: 20,767

Quote:

Originally Posted by tyler_cracker

xhad,

well, there could be N grades...

For any number of students there can always be one more added, therefore there can be an INFINITE NUMBER OF GRADES, therefore your algorithm is causing your program to run MULTIPLY INFINITE LENGTHS OF TIME.

Quote

01-07-2013 , 10:18 PM

#6909

tyler_cracker

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Join Date: Apr 2005 Posts: 15,828

Quote:

Originally Posted by Neil S

MULTIPLY INFINITE LENGTHS OF TIME.

pretty soon your algorithm is O(2N) or even O(3N)!

Quote

01-07-2013 , 10:37 PM

#6910

RICHI8

adept

Join Date: Mar 2006 Posts: 1,108

I like you all so I'm going to share this: http://this-plt-life.tumblr.com/

Quote

01-07-2013 , 11:02 PM

#6911

Xhad

Carpal \'Tunnel

Join Date: Jul 2005 Posts: 10,962

Quote:

Originally Posted by tyler_cracker

pretty soon your algorithm is O(2N) or even O(3N)!

I don't know why I don't give you more excuses to troll me

I just went and reread ATTN: Micros again

Quote

01-08-2013 , 12:09 AM

#6912

NoahSD

Is Right

Join Date: Aug 2005 Posts: 18,843

I usually don't have a strong opinion about these things, especially because I'm almost certainly not qualified to have one, but having 3 variables named angle1, angle2, and angle3 seems completely ridiculous to me in this context. Saying that the tuple thing is wrong is just nuts.

Quote

01-08-2013 , 12:23 AM

#6913

Xhad

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I kinda wanna go check and see if they're still doing this: http://forumserver.twoplustwo.com/sh...postcount=2365

Quote

01-08-2013 , 12:47 AM

#6914

tyler_cracker

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Join Date: Apr 2005 Posts: 15,828

Quote:

Originally Posted by Xhad

I just went and reread ATTN: Micros again

lol me too.

Quote:

Originally Posted by Xhad

I kinda wanna go check and see if they're still doing this: http://forumserver.twoplustwo.com/sh...postcount=2365

they optimized the *typing* -- see how much less there is in the new form? totally refactored.

Quote:

I don't know why I don't give you more excuses to troll me

Last edited by tyler_cracker; 01-08-2013 at 12:49 AM. Reason: i agree declaring the variable outside the for loop clarifies the intended scope (the only kind in js!)

Quote

01-08-2013 , 01:03 AM

#6915

daveT

S.A.G.E. Master

Join Date: Jun 2005 Posts: 23,955

Maybe xhad can create a thread on all the bonkers code found on that site and then after every program has been dumped all over, he can send them an email with a link asking them wtf went wrong.

That micros thread was funny for about a page. The poker advice on 2+2 has historically been awful, though I'm not sure how much of it was intentionally bad or just plain mis-guided. Quick brag to display my own poker prowess: I'm crushing the $5 DoN's on Carbon these days.

Quote

01-08-2013 , 01:17 AM

#6916

gaming_mouse

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Quote:

Originally Posted by Xhad

I kinda wanna go check and see if they're still doing this: http://forumserver.twoplustwo.com/sh...postcount=2365

i prefer:

Code:

raceTimes.reduce(function(a, b) { return a + b;});

Quote

01-08-2013 , 01:42 AM

#6917

tyler_cracker

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Quote:

Originally Posted by gaming_mouse

i prefer:

Code:

raceTimes.reduce(function(a, b) { return a + b;});

Last edited by tyler_cracker; 01-08-2013 at 01:42 AM. Reason: see xhad i'm an equal opportunity troller

Quote

01-08-2013 , 01:51 AM

#6918

gaming_mouse

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sort of funny you chose that pic cause sometimes on seeing your screen name i hear a sort of chris rock-like voice going "tyyyyyyyyyyyyyler CRACK-uh!!"

Quote

01-08-2013 , 02:03 AM

#6919

tyler_cracker

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lol

Last edited by tyler_cracker; 01-08-2013 at 02:06 AM. Reason: cracka-ass cracka!

Quote

01-08-2013 , 10:16 AM

#6920

Xhad

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Quote:

Originally Posted by daveT

Maybe xhad can create a thread on all the bonkers code found on that site and then after every program has been dumped all over, he can send them an email with a link asking them wtf went wrong.

I am kind of tempted to make a "lol Codecademy" thread for people checking it out or recommending it to people.

I just found something funny in one exercise where they make you write a JavaScript blackjack game. In the part where you write the function that determines the winner of the game, one of the things you find out from the "Show Hint" button is that the authors got the rules of blackjack wrong.

Quote

01-08-2013 , 12:05 PM

#6921

suzzer99

Save the Cheerleader, Save the World

Join Date: Nov 2005 Posts: 101,163

For one of my first programming side projects I wrote a blackjack simulator in C++ because I wanted to confirm you should hit a 16 when the dealer has a 7 showing. Turns out you should, but it's almost a wash when the dealer has a face card showing – which I thought was pretty counterintuitive.

Quote

01-08-2013 , 02:58 PM

#6922

Xhad

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so, another "Is this WTF or not" survey: There's this class method of the form:

Code:

method (A,B,C)

The catch here is that A and B are instance variables that are never changed. For bonus points, the method recursively calls itself, literally always passing A and B unmodified. Oh, and the exercise is "refactor this standalone function into a class method."

Quote

01-08-2013 , 08:11 PM

#6923

sdturner02

old hand

Join Date: Jul 2010 Posts: 1,230

Anybody been working on any new or interesting projects lately?

Quote

01-08-2013 , 09:28 PM

#6924

tyler_cracker

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xhad,

sounds like refactoring A and B to be instance variables is exactly what the assignment is after?

Quote

01-08-2013 , 10:05 PM

#6925

daveT

S.A.G.E. Master

Join Date: Jun 2005 Posts: 23,955

Quote:

Originally Posted by sdturner02

Anybody been working on any new or interesting projects lately?

xhad's project looks really intersting...

I'm not really doing anything interesting. Just going through Learn C the Hard Way and converting my sites over to Leiningen 2. I ordered CLRS this past Sunday and I'm waiting for it in the mails. Should be here in a few days. All of this means I'm not writing any new articles or writing any interesting code.

What did you decide about the payment structures on your website?

Last edited by daveT; 01-08-2013 at 10:13 PM.