Jerry SanDisky posted:

stuff

Orzo posted:

Oops, sorry, no it wouldn't and I read your original question incorrectly, I didn't see that you had to actually list the sets. But, at least it verifies your count!

nielsm posted:

Well yes it will.

Orzo posted:

Hey, I know I already responded to this earlier, but could you possibly elaborate on this? Could you show me what part of the docs suggests this? I've browsed through them too, but I don't remember seeing anything that suggests returning functions inside functions is invalid.

biochemist posted:

Did anyone give the Facebook Hacker's Cup a try this year? I made it past the qualifying rounds but that's as far as I'm going. It was rough! I'm self taught and don't have much experience with thinking in algorithms, so it was a pretty exciting exercise. The first round was simple enough, but the second round they made their test inputs HUGE and I guess it really tests how efficient your program runs. I wrote in PHP since it's what I know best, and although my sample inputs ran in milliseconds, it choked on the actual input for each of the problems.

Are there any similar competitions/problem sets online somewhere that I can work through? I always pay attention to efficiency in my JavaScript and things like that, but this took it to a new extreme and I'm really interested in learning more.

Doctor w-rw-rw- posted:

I did. I was traveling, so I only did the beautiful strings, which was pretty easy. I used a regex to filter out non-alphabet characters, lowercased all of the characters, then constructed a multiset (using Guava) that counted the occurrence of each letter. From there it was a simple mater of iterating over it in sorted order from most occurrences to least. Totally used the poo poo out of Guava to do the hard stuff, so I'm not sure if I'll continue doing more.

biochemist posted:

and then for each dead pixel, you lose all of the starting positions north and west of the dead pixel by the width and height of the image (unless they go outside of X=0 or Y=0).

Plorkyeran posted:

You also have to handle dead pixels which are fewer pixels than the image size apart.

tarepanda posted:

I've got a custom-built appliance that I need to make an interface for. I have a manual (in Japanese, ugh) with specifications for packets, but the problem is that I've never done anything this low-level before and don't even know what keywords I should be looking for.

The commands have a STX, command, data length, flags, ETX, BCC.

Responses have STX, ACK, data length, error code, ETX, BCC.

What do all of those abbreviations mean? What are some terms I should be googling for to find good documentation for this kind of thing?

Will scapy be useful for this?

I have zero clue where to start...

Plorkyeran posted:

You also have to handle dead pixels which are fewer pixels than the image size apart.

biochemist posted:

How would you do this efficiently? Add each bad starting loc to an array and count unique entries in it? Do it mathematically somehow?

biochemist posted:

How would you do this efficiently? Add each bad starting loc to an array and count unique entries in it? Do it mathematically somehow?

rjmccall posted:

quote:

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Wolfgang Pauli posted:

Cross-posting this from the Game Dev thread in Games. UC Berkeley is going to be doing AI and graphics programming courses through edX. AI starts a week from Monday, graphics programming a month from then.

Wolfgang Pauli posted:

Cross-posting this from the Game Dev thread in Games. UC Berkeley is going to be doing AI and graphics programming courses through edX. AI starts a week from Monday, graphics programming a month from then.

Munkeymon posted:

It has a stats prereq and I never took stats. Should I go through the stats class first or will it be simple enough to pick up along the way?

Doctor w-rw-rw- posted:

If you have a really, really solid grasp of probabilities then you might be able to scrape by. If not, you'll need to study up and review beforehand and make sure you've got them down, or,you'll get pretty lost. It's not that it gets hyper-mathematical, but the midterms and finals were absolutely loving brutal if you didn't have them down, since a lot of the material does need a solid grasp of probabilities.

Brady posted:

This is a javascript question-

Trying to round a variable up with this code:

code:

  timeElapsed = 35;
  
  if(timeElapsed <= 15)
    {
	timeElapsed = 1;
    }
  else
    {
    	timeElapsed /= 15;
   	Math.ceil(timeElapsed);
    } 
  
  total += (timeElapsed * 0.25);

The code is giving me the value of (2.33 * .25) instead of (3 * .25). Does Math.ceil only work with numbers and not variable names? If so, how do round a variable up?

Brady posted:

This is a javascript question-

Trying to round a variable up with this code:

code:

  timeElapsed = 35;
  
  if(timeElapsed <= 15)
    {
	timeElapsed = 1;
    }
  else
    {
    	timeElapsed /= 15;
   	Math.ceil(timeElapsed);
    } 
  
  total += (timeElapsed * 0.25);

The code is giving me the value of (2.33 * .25) instead of (3 * .25). Does Math.ceil only work with numbers and not variable names? If so, how do round a variable up?

Jabor posted:

Can you remote into your workstation and work on stuff from there? Or is your workstation your laptop, and you're worried about latency with NFS-mounting stuff at home? Or are you able to SSH into the server from anywhere, but can only mount the drive over NFS from the office?

You could set up some autocmds to sync changed files to the server whenever you write them locally, or something.

Azerban posted:

Had a question about a Windows batch file. I'm trying to run a file from it, and I'm doing something like;

code:

call my.exe !FLAG!

which works all well and good, until the flag has a space in it. When FLAG contains something like

code:

/thing="(some stuff)"

, it's supposed to jam '(some stuff)' into a registry value called 'thing', but all I get is '(some'. I've tried to escape the poo poo out of that space, but nothing works. Running 'my.exe /thing="(some stuff)"' works perfectly fine from the command prompt. What have I done wrong?

Jethro posted:

I think you need to put an additional set of quotes around the whole thing.

code:

call "my.exe /thing="(some stuff)""