The best math/cs problem solving site i've found.

200+ problems of increasing difficulty.

http://projecteuler.net/

8/31/2008 5:04:32 PM

Euler's Method son.

STEP OUT THE DOOR SON.

8/31/2008 5:08:03 PM

8/31/2008 5:20:54 PM

aww come on, its fun.

9/1/2008 1:27:57 PM

Ferris B...?

9/1/2008 1:28:52 PM

might have done it back in HS before college made me a fucking idiot

9/1/2008 2:00:27 PM

most of these would be pretty simple with your favorite scripting program

9/1/2008 2:26:55 PM

^ Some of the early ones would. The later ones might take forever to compute using a scripted language.

9/1/2008 3:47:05 PM

^^

The computing time should be under a minute for each problem to fulfill the requirements. Otherwise you could do most all of them by brute force. The point is to reduce them mathematically so that they are programmable.

9/1/2008 7:49:57 PM

This is pretty awesome and should be a good way to refresh my Python.

[Edited on September 1, 2008 at 8:12 PM. Reason : that's what she said]

9/1/2008 8:11:45 PM

might have done it back in HS before college made me a fucking idiot

9/1/2008 8:15:41 PM

Wow... this is cool. Thanks for the site.

Problem 202 will blow your mind!

http://projecteuler.net/index.php?section=problems&id=202

9/1/2008 8:26:40 PM

2 down!

9/1/2008 8:36:14 PM

A) many

9/1/2008 8:36:52 PM

Quote :

"might have done it back in HS before college made me a fucking idiot"

seriously

9/1/2008 8:37:46 PM

I've done 1, 2, 4, 6

Too distracted right now to bother with any more. I'm getting them all, though.

9/1/2008 9:36:16 PM

did 1, 2 and 3 tonight in a few hours in python. I consider that fairly good, considering I've never used python at all before I installed it this afternoon

9/1/2008 9:40:39 PM

Quote :

"The computing time should be under a minute for each problem to fulfill the requirements. Otherwise you could do most all of them by brute force. The point is to reduce them mathematically so that they are programmable."

well no shit

9/1/2008 9:58:52 PM

1-15 down. my programming skills suck though.

and if I have to type BigInteger one more time...

Does anyone know ruby or J? Some of their programs are 12 chars long... crazy.

9/1/2008 10:52:51 PM

I did the first 9 using VB.NET unfortunately Visual Studio.NET won't run with any Folding@Home client running.

1 and 5 are easily done by hand.

9/1/2008 11:59:10 PM

is python advised or can you use matlab? ive never used python...

9/2/2008 12:00:44 AM

It absolutely does not matter what language you use. Some of the problems will require the use of 64-bit integers. So any language that supports 64bit integers should suffice.

9/2/2008 12:02:54 AM

it appears you need 67bit integers to solve number 48 . I wrote a multiple precision module for VB6 a long time ago but I don't have VB6 anymore.

9/2/2008 5:08:42 PM