Because I am both bored and a geek:

[winterknight]

Those of you who have access to it (and if you don't know that you have, chances are that you haven't) type the following into a shell and watch what it does:

perl -wle '(1 x $_) !~ /^(11+)\1+$/ && print while ++$_'

Major kudos to anyone who can explain how it works WITHOUT looking it up.

 

[mike_n_herrin]

see i'm not near geek enough for this. i don't really even know what the hell a shell is.

ps. i'm not really a geek, i just play one on JUB.

 

[Corny]

this is the shortest algorithm for it ever.

ok it isn't, it needs perl

i don't even care about trying to figure what exactly it is doing. perl was created just for obfuscated programming freaks

 

[winterknight]

Okay, how are you getting separate lines on that? It's all one line.

and the -wle are options to the interpreter, it shouldn't be parsing them as part of the script.

Looks like the quoting in your terminal has gone screwey to me.

 

[Apollo]

i wanna do it, but i dont even know where to put that

 

[Apollo]

,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,

 

[winterknight]

ActivePerl 5.8.8 Build 820

I just did a copy/paste first and then a word by word, line by line.

Aha.

Windows doesn't like single quotes on the command line. You have to replace them with double ones.

 

[winterknight]

It counts, yes. And it will go on counting until you tell it to stop.

But it doesn't print every number it counts to.

The ones it does all have something in common.

 

[Paws]

Something else that's geeky, copy & paste this into the address bar of this page (not a new blank tab) and press return:

javascript:L=document.images[0]; O=L.offsetTop;L.style.position='relative'; L.style.zIndex=(h=L.height>>1); d=new Date().valueOf();  P=L.parentNode;for(i=0;i<8;i++ )P.innerHTML+='<div style="position:absolute; left:0;border:2px '+ (k='rgb('+ Math.round( 128+127*Math.cos(d-4 )) +','+ Math.round(128+127*Math.cos(d-2)) +','+ Math.round(128+127*Math.cos(d+=.2)) +')') +' outset;border-width:2px 0; width:100%;height:8px; background:'+k +'"></div>'; H=P.getElementsByTagName('div'); t=setInterval(' t+=.05;for(i=0;i<H.length;i++){ a=t+i/3;H[i].style.top=(O+h*(1+1.1*Math.sin(a)))+"px"; H[i].style.height= Math.round((H[i].style.zIndex=Math.round( h*(1+Math.cos(a) )))/16+4) +"px"}',20);void(0)

 

[trawler69]

Well winterknight, by observing the first no's generated, using a video capture prog as it was so fast, and the fact that the no's get further apart and take longer to calculate and are all odd and my processor started to work harder I am guessing it is a prime number generator, am I close? God I must be bored!!

 

[winterknight]

Working out what it's doing is easy.

Working out how is much harder.

 

[Apollo]

ok ok, could someone PLEASE tell me how to put it into a shell. I am sure i have one. lol

 

[winterknight]

If you're running Linux or OSX, you already have it: just type it into a terminal.

In that inferior operating system from Redmond, you'll need to download and install perl from www.activestate.com. Then type it into a dos window.

 

[trawler69]

Working out what it's doing is easy.

Working out how is much harder.

Ok, I admit it, you are the Geek incarnate! Talk me through it if you can be bothered with us mere curious mortals. I thought I did well to work out what it was doing from the results but I am always open to explanations from a human be he Geek or not. I could do the search thing but would rather have it explained interactively. *tentative *