Some challenges for the programmers out there

Chinmoy

thanks man! really nice thing..will keep me busy for the next few days..

nilsmo

I did 61 problems early in the summer in a couple weeks.

rshackelford

I just started doing it, the ones I have done are pretty easy. I'm only through the first 15 though.

amperx

wow definitely a challenge, thanks for sharing this site

racicop

That's a very interesting website.

If you liked those problems you'll probably enjoy these as well:

http://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8

I think all of the problems at uva belong to previous editions of the ACM ICPC, which is a programming competition held by the ACM.

http://www.spoj.pl/problems/classical/

These are also a lot of fun. And finally: every year Google holds its own competition, called Google Code Jam.

http://code.google.com/codejam/

You can browse problems from previous editions and even the solutions for each problem.
This last feature is very interesting, because there are solutions in very diverse programming languages ranging from Haskell (functional programming paradigm) to Java (Object-oriented).

Hope you enjoy them, we might even discuss some solutions if you want.

guissmo

I've seen this already. Some can be done with pencil and paper Math.

I usually try this out but I usually end up doing brute force methods. Maybe it should have some solution page (does it)?

racicop

I think project euler doesn't, Google Code Jam shows every solution uploaded (meaning the source code). Don't remember about the other sites, but there are forums to discuss your solution with other people.

I think all of the sites I posted, unlike Project Euler, have a time limit for you solution. In Google Code Jam you only have 4 minutes, I think, and I believe uva compiles your source code and runs it for a test input, so it's probably around a couple of minutes. A brute force approach will, most probably, fail to give an answer within those time constraints.

Some problems take some time to get solved, but most are easily solved with variations of classical algorithms in graphs if you model your problem adequately.

nilsmo

nilsmo

Stubru Freak

Facebook also has some puzzles like this here: http://www.facebook.com/careers/puzzles.php

Auctus

I've done the first ten and a few random ones after that. Good way to relax and do something puzzling that isn't so stupid as a crossword.

Buba_vv

http://www.pythonchallenge.com/
Considered that you use python, but most of puzzles can be done on any language

joostvane

Thank you for the site. Something useful to do when I'm bored Very Happy

Plus I can finally test my calculator, and get more into programming with it.

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