Sphere Online Judge

Problem DCEPC705 was moved from classical to tutorial problemset.

:D — Thu, 17 May 2012 08:03:24 +0200

However the problem is hidden so it can't be viewed at the moment.

Problem DCEPC705 was hidden.

:D — Thu, 17 May 2012 07:59:22 +0200

Problem DCEPC705 was hidden by :D.

Problem RPLF was moved from classical to tutorial problemset.

:D — Wed, 16 May 2012 20:26:27 +0200

Problem RPLF was moved by :D from classical to tutorial problemset.

Problem IN1 was hidden.

:D — Wed, 16 May 2012 18:20:03 +0200

Problem IN1 was hidden by :D.

Problem FEELUCK was moved from classical to tutorial problemset.

:D — Wed, 16 May 2012 14:05:52 +0200

Problem FEELUCK was moved by :D from classical to tutorial problemset.

Problem IN1 is available

;)e@;)ly_[!n$t!ncT] — Wed, 16 May 2012 12:03:03 +0200

Problem IN1 (11537. FACTSUM) added by ;)e@;)ly_[!n$t!ncT] is now available in the classical problemset.

Read the problem text: IN1

Problem TSHOW1 was moved from tutorial to classical problemset.

:D — Wed, 16 May 2012 08:41:00 +0200

Problem TSHOW1 was moved by :D from tutorial to classical problemset.

Problem ITRIX_B was moved from classical to tutorial problemset.

:D — Wed, 16 May 2012 08:39:50 +0200

Problem ITRIX_B was moved by :D from classical to tutorial problemset.

Problem DCEPC706 is available

dce coders — Tue, 15 May 2012 17:16:00 +0200

Problem DCEPC706 (11477. Meeting For Party) added by dce coders is now available in the classical problemset.

Read the problem text: DCEPC706

Problem DCEPC705 is available

dce coders — Tue, 15 May 2012 17:15:27 +0200

Problem DCEPC705 (11476. Weird Points) added by dce coders is now available in the tutorial problemset.

Read the problem text: DCEPC705

Problem DCEPC703 is available

dce coders — Tue, 15 May 2012 17:14:59 +0200

Problem DCEPC703 (11474. Totient Game) added by dce coders is now available in the classical problemset.

Read the problem text: DCEPC703

Problem DCEPC702 is available

dce coders — Tue, 15 May 2012 17:14:52 +0200

Problem DCEPC702 (11473. NOS) added by dce coders is now available in the classical problemset.

Read the problem text: DCEPC702

Problem DCEPC701 is available

dce coders — Tue, 15 May 2012 17:13:36 +0200

Problem DCEPC701 (11472. Amazing Maze) added by dce coders is now available in the classical problemset.

Read the problem text: DCEPC701

Problem TWINP was moved from classical to tutorial problemset.

[Trichromatic] XilinX — Tue, 15 May 2012 16:39:12 +0200

Problem TWINP was moved by [Trichromatic] XilinX from classical to tutorial problemset.

Problem SKIVER1 is available again.

:D — Tue, 15 May 2012 14:26:05 +0200

Problem SKIVER1 is available again (shown by :D).

Problem HSH1 was hidden.

:D — Tue, 15 May 2012 08:01:04 +0200

Problem HSH1 was hidden by :D.

Problem MAGICSQU was hidden.

:D — Mon, 14 May 2012 10:50:42 +0200

Problem MAGICSQU was hidden by :D.

Problem STRINGS was hidden.

:D — Mon, 14 May 2012 10:48:35 +0200

Problem STRINGS was hidden by :D.

Problem KINDJ was moved from classical to tutorial problemset.

:D — Mon, 14 May 2012 10:43:42 +0200

Problem KINDJ was moved by :D from classical to tutorial problemset.

Problem MIRRORED was moved from classical to tutorial problemset.

:D — Sun, 13 May 2012 18:30:35 +0200

Problem MIRRORED was moved by :D from classical to tutorial problemset.

Problem DOMINST is available

Coach UTN FRSF — Sun, 13 May 2012 15:48:47 +0200

Problem DOMINST (11521. Dominant Strings) added by Coach UTN FRSF is now available in the classical problemset.

Read the problem text: DOMINST

Problem SALVA1 was hidden.

:D — Sun, 13 May 2012 12:34:16 +0200

Problem SALVA1 was hidden by :D.

Problem EASYMAT2 was hidden.

:D — Sun, 13 May 2012 10:36:37 +0200

Problem EASYMAT2 was hidden by :D.

Problem DUCKS was moved from classical to tutorial problemset.

:D — Sat, 12 May 2012 22:29:07 +0200

Problem DUCKS was moved by :D from classical to tutorial problemset.

Problem RPLF was moved from classical to tutorial problemset.

:D — Sat, 12 May 2012 14:05:36 +0200

Problem RPLF was moved by :D from classical to tutorial problemset.

Problem SALVA1 is available

initiald159 — Sat, 12 May 2012 06:05:54 +0200

Problem SALVA1 (11491. Addict to Letters) added by initiald159 is now available in the tutorial problemset.

Read the problem text: SALVA1

Problem TFOSS was moved from tutorial to classical problemset.

:D — Fri, 11 May 2012 22:51:44 +0200

Problem TFOSS was moved by :D from tutorial to classical problemset.

Problem AMR11G was moved from classical to tutorial problemset.

:D — Fri, 11 May 2012 22:38:12 +0200

Problem AMR11G was moved by :D from classical to tutorial problemset.

Problem VOWELS was moved from classical to tutorial problemset.

:D — Fri, 11 May 2012 22:13:59 +0200

Problem VOWELS was moved by :D from classical to tutorial problemset.

Problem MAIN12D was moved from classical to tutorial problemset.

:D — Fri, 11 May 2012 21:55:38 +0200

Problem MAIN12D was moved by :D from classical to tutorial problemset.

Problem REDOKS was moved from classical to partial problemset.

:D — Fri, 11 May 2012 21:45:13 +0200

Problem REDOKS was moved by :D from classical to partial problemset.

Problem ABA12A was moved from classical to tutorial problemset.

:D — Fri, 11 May 2012 19:30:37 +0200

Problem ABA12A was moved by :D from classical to tutorial problemset.

Problem PL_QUINE was hidden.

:D — Fri, 11 May 2012 19:03:44 +0200

Problem PL_QUINE was hidden by :D.

Problem NUMGUESS was moved from classical to tutorial problemset.

:D — Fri, 11 May 2012 18:40:07 +0200

Problem NUMGUESS was moved by :D from classical to tutorial problemset.

Problem EASYMAT3 was moved from classical to tutorial problemset.

:D — Fri, 11 May 2012 13:26:05 +0200

However the problem is hidden so it can't be viewed at the moment.

Problem EASYMAT3 was hidden.

:D — Fri, 11 May 2012 12:27:02 +0200

Problem EASYMAT3 was hidden by :D.

Problem MB2 was moved from challenge to tutorial problemset.

:D — Fri, 11 May 2012 08:57:01 +0200

Problem MB2 was moved by :D from challenge to tutorial problemset.

Problem ANARC07J was moved from tutorial to classical problemset.

:D — Fri, 11 May 2012 08:19:07 +0200

Problem ANARC07J was moved by :D from tutorial to classical problemset.

Problem CHECK2 was hidden.

:D — Thu, 10 May 2012 22:20:36 +0200

Problem CHECK2 was hidden by :D.

Problem VUDBOL4 was moved from classical to tutorial problemset.

:D — Thu, 10 May 2012 22:18:09 +0200

Problem VUDBOL4 was moved by :D from classical to tutorial problemset.

Problem PWAD was moved from classical to tutorial problemset.

:D — Thu, 10 May 2012 22:15:50 +0200

Problem PWAD was moved by :D from classical to tutorial problemset.

Problem EASYMAT3 is available

Devil D — Wed, 09 May 2012 14:38:22 +0200

Problem EASYMAT3 (11505. EASY MATH 3) added by Devil D is now available in the tutorial problemset.

Read the problem text: EASYMAT3

Problem COT4 is available

Fotile — Wed, 09 May 2012 06:46:37 +0200

Problem COT4 (11482. Count on a trie) added by Fotile is now available in the classical problemset.

Read the problem text: COT4

Problem RPLJ is available

David Moran — Sun, 06 May 2012 20:59:10 +0200

Problem RPLJ (11496. Just the distance) added by David Moran is now available in the classical problemset.

Read the problem text: RPLJ

Problem RPLI is available

David Moran — Sun, 06 May 2012 20:59:08 +0200

Problem RPLI (11495. Ignore the bounds) added by David Moran is now available in the classical problemset.

Read the problem text: RPLI

Problem RPLH is available

David Moran — Sun, 06 May 2012 20:59:05 +0200

Problem RPLH (11494. Hard Launching) added by David Moran is now available in the classical problemset.

Read the problem text: RPLH

Problem RPLG is available

David Moran — Sun, 06 May 2012 20:57:03 +0200

Problem RPLG (11493. Goto & labels) added by David Moran is now available in the classical problemset.

Read the problem text: RPLG

Problem RPLF is available

David Moran — Sun, 06 May 2012 20:56:02 +0200

Problem RPLF (11492. Fast Schedule) added by David Moran is now available in the tutorial problemset.

Read the problem text: RPLF

Problem VUDBOL7 is available

Edwin Guzman — Wed, 02 May 2012 16:06:01 +0200

Problem VUDBOL7 (11460. Planning Poker) added by Edwin Guzman is now available in the classical problemset.

Read the problem text: VUDBOL7

Problem VUDBOL5 is available

Edwin Guzman — Wed, 02 May 2012 16:05:53 +0200

Problem VUDBOL5 (11458. Ninja) added by Edwin Guzman is now available in the classical problemset.

Read the problem text: VUDBOL5

Problem VUDBOL4 is available

Edwin Guzman — Wed, 02 May 2012 16:05:48 +0200

Problem VUDBOL4 (11457. New iPad) added by Edwin Guzman is now available in the tutorial problemset.

Read the problem text: VUDBOL4

Problem SBE201P3 is available

Islam Samir Badreldin — Tue, 01 May 2012 10:34:36 +0200

Problem SBE201P3 (6703. SBE201 Palindromes) added by Islam Samir Badreldin is now available in the tutorial problemset.

Read the problem text: SBE201P3

Problem SUBSET is available

ირაკლი — Sun, 29 Apr 2012 09:20:19 +0200

Problem SUBSET (11469. Balanced Cow Subsets) added by ირაკლი is now available in the classical problemset.

Read the problem text: SUBSET

Problem SHLF is available

ირაკლი — Sat, 28 Apr 2012 17:26:48 +0200

Problem SHLF (11464. Book Shelves(tutorial)) added by ირაკლი is now available in the tutorial problemset.

Read the problem text: SHLF

Problem FIBFUNCH is available

Devil D — Thu, 26 Apr 2012 16:04:46 +0200

Problem FIBFUNCH (11462. Fun with Fibonacci Series (Challenge)) added by Devil D is now available in the challenge problemset.

Read the problem text: FIBFUNCH

Problem BYTESH is available

Troika::Bytes — Wed, 25 Apr 2012 19:52:26 +0200

Problem BYTESH (10703. HOSTAGES) added by Troika::Bytes is now available in the classical problemset.

Read the problem text: BYTESH

Problem SHELF is available

ირაკლი — Wed, 25 Apr 2012 14:17:06 +0200

Problem SHELF (11461. Book Shelves) added by ირაკლი is now available in the classical problemset.

Read the problem text: SHELF

Problem MAXOR is available

Fotile — Wed, 25 Apr 2012 06:26:53 +0200

Problem MAXOR (11444. MAXOR) added by Fotile is now available in the classical problemset.

Read the problem text: MAXOR

Problem PROBFIND is available

Jared Deckard — Tue, 24 Apr 2012 21:50:46 +0200

Problem PROBFIND (11452. Find New SPOJ Problems) added by Jared Deckard is now available in the classical problemset.

Read the problem text: PROBFIND

Problem DCEPC502 is available

dce coders — Tue, 24 Apr 2012 19:54:23 +0200

Problem DCEPC502 (11405. Just Like the Good Old Days) added by dce coders is now available in the classical problemset.

Read the problem text: DCEPC502

Problem DCEPC604 is available

dce coders — Tue, 24 Apr 2012 19:54:15 +0200

Problem DCEPC604 (11440. Unlock it ! Part 2) added by dce coders is now available in the classical problemset.

Read the problem text: DCEPC604

Problem DCEPC505 is available

dce coders — Tue, 24 Apr 2012 19:52:15 +0200

Problem DCEPC505 (11401. Bazinga!) added by dce coders is now available in the classical problemset.

Read the problem text: DCEPC505

Problem DCEPC504 is available

dce coders — Tue, 24 Apr 2012 19:52:08 +0200

Problem DCEPC504 (11402. The Indian Connection) added by dce coders is now available in the classical problemset.

Read the problem text: DCEPC504

Problem DCEPC501 is available

dce coders — Tue, 24 Apr 2012 18:52:36 +0200

Problem DCEPC501 (11404. Save Thy Toys) added by dce coders is now available in the classical problemset.

Read the problem text: DCEPC501

Problem DCEPC301 is available

dce coders — Tue, 24 Apr 2012 18:52:17 +0200

Problem DCEPC301 (10945. Foodie Golu) added by dce coders is now available in the classical problemset.

Read the problem text: DCEPC301

Problem AGSCHALL is available

Devil D — Tue, 24 Apr 2012 16:02:39 +0200

Problem AGSCHALL (11451. Aritho-geometric Series (AGS) (Challenge)) added by Devil D is now available in the challenge problemset.

Read the problem text: AGSCHALL

Problem EASYMAT2 is available

Devil D — Tue, 24 Apr 2012 09:21:43 +0200

Problem EASYMAT2 (11403. EASY MATH 2) added by Devil D is now available in the tutorial problemset.

Read the problem text: EASYMAT2

Problem EASYMATC is available

Devil D — Mon, 23 Apr 2012 13:09:59 +0200

Problem EASYMATC (11445. EASY MATH (Challenge)) added by Devil D is now available in the challenge problemset.

Read the problem text: EASYMATC

Problem DAVIDG is available

Luis Arguello — Sun, 22 Apr 2012 18:08:16 +0200

Problem DAVIDG (11443. Davids Greed) added by Luis Arguello is now available in the classical problemset.

Read the problem text: DAVIDG

Problem INDISET is available

Jimmy Tirtawangsa — Sun, 22 Apr 2012 13:56:31 +0200

Problem INDISET (11397. Find all independent nodes) added by Jimmy Tirtawangsa is now available in the challenge problemset.

Read the problem text: INDISET

Problem FINDPROB is available

Jared Deckard — Sun, 22 Apr 2012 04:11:11 +0200

Problem FINDPROB (11410. Find New SPOJ Problems) added by Jared Deckard is now available in the challenge problemset.

Read the problem text: FINDPROB

Problem FIBTWIST is available

Devil D — Thu, 19 Apr 2012 09:15:24 +0200

Problem FIBTWIST (11409. Fibonacci With a Twist) added by Devil D is now available in the classical problemset.

Read the problem text: FIBTWIST

Problem TDOWN is available

ირაკლი — Wed, 18 Apr 2012 19:04:40 +0200

Problem TDOWN (11407. Tied Down) added by ირაკლი is now available in the classical problemset.

Read the problem text: TDOWN

Problem REDOKS is available

Andr�s Mej�a-Posada — Wed, 18 Apr 2012 05:17:14 +0200

Problem REDOKS (11400. Redoks) added by Andr�s Mej�a-Posada is now available in the partial problemset.

Read the problem text: REDOKS

Problem TECHELN5 is available

Nikunj Jain — Tue, 17 Apr 2012 16:45:01 +0200

Problem TECHELN5 (11398. Do You know your Algorithms) added by Nikunj Jain is now available in the classical problemset.

Read the problem text: TECHELN5

Problem TECHELN3 is available

Nikunj Jain — Tue, 17 Apr 2012 14:35:15 +0200

Problem TECHELN3 (11395. Dexter vs Mandark) added by Nikunj Jain is now available in the classical problemset.

Read the problem text: TECHELN3

Problem EASYMATH is available

Devil D — Tue, 17 Apr 2012 10:44:59 +0200

Problem EASYMATH (11391. EASY MATH) added by Devil D is now available in the classical problemset.

Read the problem text: EASYMATH

Results of the High School Programming League 2011/2012

�ukasz Kuszner — Thu, 15 Mar 2012 14:49:05 +0100

Top 5 contestants:

1	Marcin Smulewicz	Liceum Og�lnokszta�c�ce im. B. Prusa w Skierniewicach, Poland
2	Teodora	Gimnazija "Veljko Petrovic", Serbia
3	Filip Katanic	Gimnazija "Veljko Petrovic", Serbia
4	Jakub Ko�odziej	I Liceum Og�lnokszta�c�ce im. Wojciecha K�trzy�skiego w Gi�ycku, Poland
5	Ivan Sto�i�	Gimnazija "Svetozar Markovic", Ni�, Serbia

more ...

Top 3 schools:

1	Spojen� �kola Novohradsk�, Slovakia (coach: Ondrej Dem��ek)
2	Gimnazija "Veljko Petrovic", Serbia (coach: Dusko Obradovic)
3	Zesp� Szk� Og�lnokszta�c�cych nr 6 w Bydgoszczy, Poland (coach: Ma�gorzata Piekarska)

more ...

Visit the website: http://challenge24.spoj.pl/

NWERC 2011 Semi-Live online contest

�ukasz Kuszner — Thu, 10 Nov 2011 09:30:24 +0100

The open edition of NWERC 2011 will take place at 27 November 2011 10:30 (SPOJ time). Everyone is invited!

Visit the website: http://challenge24.spoj.pl/

HSPL starts on Monday, September 12

�ukasz Kuszner — Mon, 29 Aug 2011 20:17:37 +0200

The fourth edition of the High School Programming League 2011/12 training session has started. The first problem set series starts on Monday, September 12. You are cordially invited to join the contest.

Visit the website: http://challenge24.spoj.pl/

Tests of internal mechanisms

japi — Tue, 21 Jun 2011 16:48:09 +0200

We are testing a new version of spoj engine. Please report here if you observe any incorrect behaviour of judging mechanism (like waiting too long for assesment of submission, varying execution times of equal source codes, internal errors, etc.). Thank you!

Visit the website: http://challenge24.spoj.pl/

Interactive problems

Filip Wielewski — Sat, 11 Dec 2010 09:13:46 +0100

New kind of problems has been introduced on SPOJ - interactive problems that allow to talk with the judge! (sample problems: MSTRMND, KULE, PPP07D and NUMGUESS). Go here to find out more.

Visit the website: http://challenge24.spoj.pl/

A public contest at SPOJ

�ukasz Kuszner — Sun, 24 Oct 2010 22:53:29 +0200

The open edition of PolyProg Selection Contest 2010 will take place on Saturday, October 30th, from 13:00 till 18:00 SPOJ time. Everyone is invited!

Visit the website: http://challenge24.spoj.pl/

BBone an add-on for phpBB forums is available.

�ukasz Kuszner — Mon, 27 Sep 2010 12:09:27 +0200

The BBone allows to share source codes and provides the ability to compile and run them. Beside syntax highlighting, testing source codes against user input, it allows to create mini-contests for forum co-members. Read more ...

Visit the website: http://challenge24.spoj.pl/

New languages: Go and F#

�ukasz Kuszner — Mon, 26 Jul 2010 13:54:57 +0200

We are pleased to announce that the next two languages are available, please enjoy!

Visit the website: http://challenge24.spoj.pl/

Ideone.com major upgrade

�ukasz Kuszner — Mon, 19 Jul 2010 19:49:26 +0200

The most important new features available for Ideone users are:

management panel, where users can view and group their pastes;
personalized access to Ideone API;
public folders, which allow to publish and share a group of pastes at one go.

Visit the website: http://challenge24.spoj.pl/

Useful tools

Filip Wielewski — Fri, 16 Apr 2010 23:02:36 +0200

They are described on our facebook page:
Users' stats
Another good users' stats
SPOJ Rank Tracker - Firefox Add-on

Visit the website: http://challenge24.spoj.pl/

SPOJ Backup Tool

Filip Wielewski — Tue, 23 Mar 2010 00:12:32 +0100

Backup your solutions! Find out more on our facebook site.

Visit the website: http://challenge24.spoj.pl/

Problems Classification

Filip Wielewski — Tue, 23 Mar 2010 00:09:00 +0100

Read about Problems Classification tools on our facebook site.

Visit the website: http://challenge24.spoj.pl/

Ideone.com

Filip Wielewski — Mon, 21 Dec 2009 08:57:09 +0100

Ideone.com - new project based on SPOJ Engine - has just started. Ideone.com is a pastebin, but a pastebin like no other on the Internet. More accurate expression would be online mini IDE and debugging tool. It allows to execute code with custom input data in 38 programming languages and to share it with friends and teammates. We hope you find it useful!

Visit the website: http://challenge24.spoj.pl/

New language: Erlang

Filip Wielewski — Mon, 19 Oct 2009 02:24:19 +0200

We are pleased to announce that next language is available on SPOJ: this time it's Erlang.

Visit the website: http://challenge24.spoj.pl/

New language: Scala

Filip Wielewski — Mon, 12 Oct 2009 22:08:44 +0200

From now on Scala language is available. Please remember that compilation of solutions in Scala takes even 1-2 minutes and that Scala interpreter needs about 1.5 seconds to start.

Visit the website: http://challenge24.spoj.pl/

Languages on SPOJ

Filip Wielewski — Tue, 22 Sep 2009 13:16:22 +0200

New language is available: TCL. Many other languages (i.e. their compilers) were updated - please report any bugs on forum: Bugs.

Visit the website: http://challenge24.spoj.pl/

Major upgrade

Robert Janczewski — Mon, 14 Sep 2009 20:10:39 +0200

SPOJ is undergoing major upgrade of almost all its languages. This may cause some problems, which should disappear within 1-2 days. We are sorry for the inconvenience.

Visit the website: http://challenge24.spoj.pl/

Scarky

Filip Wielewski — Wed, 12 Aug 2009 20:21:15 +0200

We are delighted to announce the opening of the new portal based on the SPOJ Engine. With Scarky.com you can place programming challenges and other riddles directly on your site!

Visit the website: http://challenge24.spoj.pl/

Advanced user statistics

Adrian Kosowski — Tue, 21 Jul 2009 12:38:19 +0200

We recommend this on-line tool (by VNOI Team) for visualizing the activity of SPOJ users.

Visit the website: http://challenge24.spoj.pl/

SPOJ Rank Tracker

Micha� Ma�afiejski — Thu, 11 Jun 2009 16:20:01 +0200

We recommend SPOJ Rank Tracker Beta 1.01 by Abhishek Mishra, see website.

Visit the website: http://challenge24.spoj.pl/

Fudan University Local Contest #1

Adrian Kosowski — Sat, 30 May 2009 10:41:27 +0200

Fudan University Local Contest #1 will be held on June 6, 2009, between 09:00 and 14:00 SPOJ time. Everyone is invited to participate!

Visit the website: http://challenge24.spoj.pl/

Challenge 24 Electronic Contest Practice

Jacek D�browski — Thu, 05 Feb 2009 00:09:02 +0100

If you are not afraid of extreme programming challenges, try your luck at www.challenge24.org! You can practice with the Electronic Problemsets from the previous year at challenge24.spoj.pl.

Visit the website: http://challenge24.spoj.pl/

MIT Individual Contest 2008

Adrian Kosowski — Wed, 07 Jan 2009 22:37:40 +0100

The open edition of MIT Individual Contest 2008 will take place on Sunday, January 18th, from 18:00 to 23:00 SPOJ time. Everyone is cordially invited to participate!

Visit the website: http://challenge24.spoj.pl/

A new long-term contest at SPOJ!

�ukasz Kuszner — Wed, 17 Sep 2008 01:05:19 +0200

We are delighted to announce a new international programming contest, addressed first of all to high school students: High School Programming League 2008/2009. The contest will consist of 7 problem sets, each lasting about 5 weeks. The 1st problem set starts on September 20 at 12:00 SPOJ time. You are cordially invited to participate!

Visit the website: http://challenge24.spoj.pl/

A marathon contest at SPOJ

Adrian Kosowski — Tue, 10 Jun 2008 23:57:03 +0200

The 2008 VNOI Marathon will run for 3 months, starting from June 14. The base language of the contest is Vietnamese, but English versions of the problems will also be available throughout the contest. (The practice session before the contest is in Vietnamese, only.)

Visit the website: http://challenge24.spoj.pl/

Open Contest 2008

Adrian Kosowski — Thu, 01 May 2008 18:47:30 +0200

We are delighted to announce the 2008 edition of Open Contest which will last from May 3 till May 20!

Visit the website: http://challenge24.spoj.pl/

A public contest at SPOJ

Adrian Kosowski — Sat, 19 Jan 2008 13:52:23 +0100

The open edition of MIT 1st Team Contest 2007 will take place on Sunday, February 3rd, from 18:00 till 23:00 SPOJ time. Everyone is invited!

Visit the website: http://challenge24.spoj.pl/