Project Euler is partly back

by akg • 12 years ago

50 16 12 years ago

abhididdigi2• 12 years ago

This is sad. Because of this they have sealed off the ability to check answers. Anyone know of a way to get all the Project Euler problems offline and their solutions?

captn3m02• 12 years ago

You can check out codebot[0] for checking your solutions. The source and problems are all on GitHub: https://github.com/sdslabs/codebot

[0] http://codebot.sdslabs.co/

yeukhon• 12 years ago

How did they find out they were hacked in the first place? This is always interesting to me as I don't think Project Euler would have some sophisticated security logging audit system in place.

jejones3141• 12 years ago

The forum has returned, but OTOH when I try to log in it says it has no record of my username.

Igglyboo• 12 years ago

Well it's not back completely, now it's just a static site with the problem set restored. No ability to check answers or log in and track your progress.

balloot• 12 years ago

Sad. Project Euler is pretty much useless without the problem checking feature. Anyone know a good alternative?

zxide• 12 years ago

A few months ago I made a gem to manage, run, and test project euler problems.

https://github.com/yaworsw/euler-manager

reledi• 12 years ago

It looks like you check against static answers [1]. This won't work in the long run because, as far as I'm aware, PE changes the numbers in their problems to prevent cheating. Which means the answers you have would be outdated.

1: https://github.com/yaworsw/euler-manager/blob/master/data/an...

perturbation• 12 years ago

Did this pretty quickly: http://project-euler-solution.herokuapp.com/

Give it a shot? Don't have answers to all questions.

dang• 12 years ago

We changed the title to say "partly".

captn3m02• 12 years ago

I did a dump of Project Euler sometime back. The script, code, and problems, and solutions are all on github [0]. The finished product was just a terminal-style UI to Project Euler called codebot. You can try it out at http://codebot.sdslabs.co/

[0] http://github.com/sdslabs/codebot

abhididdigi2• 12 years ago

Thanks!

djf1• 12 years ago

The part about salting confuses me. Shouldn't salting remain effective against rainbow tables even when the salting mechanism is known?

dnet• 12 years ago

It should, and they just said "the integrity of weak passwords cannot be guaranteed" -- even the best salting cannot prevent attackers performing brute force attacks; it will be slow, but weak passwords may be cracked in reasonable time.

wolf550e• 12 years ago

crypto101 says that because of how fast GPUs are at computing hashes, even using long per-user salt is now broken and you must use pbkdf2 or better yet, scrypt.

akg• 12 years ago

Looks like they have enabled answer checking again .

Project Euler is partly back

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