Contests

Contest Start Date End Date Format (?)

Super Secret USACO Problems

Jan 01, 1970, 7:30pm UTC Jan 01, 2030, 10:30pm UTC IOI Enter >

Woburn Challenge 2018-19: Finals (Senior Division)

May 18, 2019, 2:30pm UTC May 18, 2019, 5:30pm UTC WC Enter >

Woburn Challenge 2018-19: Finals (Junior Division)

May 18, 2019, 2:30pm UTC May 18, 2019, 5:30pm UTC WC Enter >

Woburn Challenge 2018-19: Online Round 4 (Senior Division)

Mar 22, 2019, 7:30pm UTC Mar 22, 2019, 10:30pm UTC WC Enter >

Woburn Challenge 2018-19: Online Round 4 (Intermediate Division)

Mar 22, 2019, 7:30pm UTC Mar 22, 2019, 10:30pm UTC WC Enter >

Woburn Challenge 2018-19: Online Round 4 (Junior Division)

Mar 22, 2019, 7:30pm UTC Mar 22, 2019, 10:30pm UTC WC Enter >

Woburn Challenge 2018-19: Online Round 3 (Senior Division)

Feb 01, 2019, 8:30pm UTC Feb 01, 2019, 11:30pm UTC WC Enter >

Woburn Challenge 2018-19: Online Round 3 (Intermediate Division)

Feb 01, 2019, 8:30pm UTC Feb 01, 2019, 11:30pm UTC WC Enter >

Woburn Challenge 2018-19: Online Round 3 (Junior Division)

Feb 01, 2019, 8:30pm UTC Feb 01, 2019, 11:30pm UTC WC Enter >

Woburn Challenge 2018-19: Online Round 2 (Senior Division)

Dec 14, 2018, 8:30pm UTC Dec 14, 2018, 11:30pm UTC WC Enter >

Woburn Challenge 2018-19: Online Round 2 (Intermediate Division)

Dec 14, 2018, 8:30pm UTC Dec 14, 2018, 11:30pm UTC WC Enter >

Woburn Challenge 2018-19: Online Round 2 (Junior Division)

Dec 14, 2018, 8:30pm UTC Dec 14, 2018, 11:30pm UTC WC Enter >

Woburn Challenge 2018-19: Online Round 1 (Senior Division)

Nov 16, 2018, 8:30pm UTC Nov 16, 2018, 11:30pm UTC WC Enter >

Woburn Challenge 2018-19: Online Round 1 (Intermediate Division)

Nov 16, 2018, 8:30pm UTC Nov 16, 2018, 11:30pm UTC WC Enter >

Woburn Challenge 2018-19: Online Round 1 (Junior Division)

Nov 16, 2018, 8:30pm UTC Nov 16, 2018, 11:30pm UTC WC Enter >

Woburn Challenge 2017-18: Finals (Senior Division)

May 13, 2018, 2:40pm UTC May 13, 2018, 5:40pm UTC WC Enter >

Woburn Challenge 2017-18: Finals (Junior Division)

May 13, 2018, 2:40pm UTC May 13, 2018, 5:40pm UTC WC Enter >

Woburn Challenge 2018: Online Round 4 (Senior Division)

Apr 20, 2018, 7:30pm UTC Apr 20, 2018, 10:30pm UTC WC Enter >

Woburn Challenge 2018: Online Round 4 (Intermediate Division)

Apr 20, 2018, 7:30pm UTC Apr 20, 2018, 10:30pm UTC WC Enter >

Woburn Challenge 2018: Online Round 4 (Junior Division)

Apr 20, 2018, 7:30pm UTC Apr 20, 2018, 10:30pm UTC WC Enter >

emergency cutoff part B

Apr 17, 2018, 7:40pm UTC Apr 17, 2018, 9:10pm UTC ACM Enter >

emergency cutoff

Apr 03, 2018, 7:40pm UTC Apr 03, 2018, 9:30pm UTC ACM Enter >

Woburn Challenge 2018: Online Round 3 (Senior Division)

Mar 23, 2018, 7:30pm UTC Mar 23, 2018, 10:30pm UTC WC Enter >

Woburn Challenge 2018: Online Round 3 (Intermediate Division)

Mar 23, 2018, 7:30pm UTC Mar 23, 2018, 10:30pm UTC WC Enter >

Woburn Challenge 2018: Online Round 3 (Junior Division)

Mar 23, 2018, 7:30pm UTC Mar 23, 2018, 10:30pm UTC WC Enter >

Woburn Challenge 2018: Online Round 2 (Senior Division)

Feb 23, 2018, 8:30pm UTC Feb 23, 2018, 11:30pm UTC WC Enter >

Woburn Challenge 2018: Online Round 2 (Intermediate Division)

Feb 23, 2018, 8:30pm UTC Feb 23, 2018, 11:30pm UTC WC Enter >

Woburn Challenge 2018: Online Round 2 (Junior Division)

Feb 23, 2018, 8:30pm UTC Feb 23, 2018, 11:30pm UTC WC Enter >

wcipeg ccc practice 2

Feb 13, 2018, 8:30pm UTC Feb 13, 2018, 10:00pm UTC WC Enter >

Woburn Challenge 2018: Online Round 1 (Senior Division)

Jan 26, 2018, 8:30pm UTC Jan 26, 2018, 11:30pm UTC WC Enter >

Woburn Challenge 2018: Online Round 1 (Intermediate Division)

Jan 26, 2018, 8:30pm UTC Jan 26, 2018, 11:30pm UTC WC Enter >

Woburn Challenge 2018: Online Round 1 (Junior Division)

Jan 26, 2018, 8:30pm UTC Jan 26, 2018, 11:30pm UTC WC Enter >

wcipeg ecoo selection test

Jan 23, 2018, 8:30pm UTC Jan 23, 2018, 10:05pm UTC ECOO Enter >

CCC practice contest

Jan 11, 2018, 5:35pm UTC Jan 11, 2018, 6:35pm UTC WC Enter >

wcipeg go_really_fast contest

Jan 09, 2018, 8:30pm UTC Jan 09, 2018, 9:00pm UTC WC Enter >

RHHS Technological Extravaganza

Dec 14, 2017, 8:30pm UTC Dec 14, 2017, 11:30pm UTC WC Enter >

wcipeg test Part-C

Nov 28, 2017, 9:45pm UTC Nov 28, 2017, 10:30pm UTC IOI Enter >

Woburn Challenge 2016-17: Finals (Senior Division)

May 06, 2017, 2:30pm UTC May 06, 2017, 5:30pm UTC WC Enter >

Woburn Challenge 2016-17: Finals (Junior Division)

May 06, 2017, 2:30pm UTC May 06, 2017, 5:30pm UTC WC Enter >

PEG dynamic programming test

Apr 21, 2017, 8:00pm UTC Apr 21, 2017, 9:30pm UTC WC Enter >

Woburn Challenge 2016-17: Online Round 4 (Senior Division)

Apr 09, 2017, 6:00pm UTC Apr 09, 2017, 9:00pm UTC WC Enter >

Woburn Challenge 2016-17: Online Round 4 (Junior Division)

Apr 09, 2017, 6:00pm UTC Apr 09, 2017, 9:00pm UTC WC Enter >

Woburn Challenge 2016-17: Online Round 3 (Senior Division)

Feb 19, 2017, 7:00pm UTC Feb 19, 2017, 10:00pm UTC WC Enter >

Woburn Challenge 2016-17: Online Round 3 (Junior Division)

Feb 19, 2017, 7:00pm UTC Feb 19, 2017, 10:00pm UTC WC Enter >

Woburn Challenge 2016-17: Online Round 2 (Senior Division)

Dec 11, 2016, 7:00pm UTC Dec 11, 2016, 10:00pm UTC WC Enter >

Woburn Challenge 2016-17: Online Round 2 (Junior Division)

Dec 11, 2016, 7:00pm UTC Dec 11, 2016, 10:00pm UTC WC Enter >

Woburn Challenge 2016-17: Online Round 1 (Senior Division)

Oct 16, 2016, 6:00pm UTC Oct 16, 2016, 9:00pm UTC WC Enter >

Woburn Challenge 2016-17: Online Round 1 (Junior Division)

Oct 16, 2016, 6:00pm UTC Oct 16, 2016, 9:00pm UTC WC Enter >

Diagnostic Test 2016 Level 2

Oct 14, 2016, 9:00pm UTC Oct 14, 2016, 9:45pm UTC WC Enter >

Diagnostic Test 2016 Level 1

Oct 14, 2016, 8:10pm UTC Oct 14, 2016, 8:55pm UTC WC Enter >

Woburn Challenge: Finals (Senior Division)

May 06, 2016, 5:55pm UTC May 06, 2016, 8:55pm UTC WC Enter >

Woburn Challenge: Finals (Junior Division)

May 06, 2016, 5:55pm UTC May 06, 2016, 8:55pm UTC WC Enter >

Woburn Challenge: Online Round 4 (Senior Division)

Apr 08, 2016, 8:00pm UTC Apr 08, 2016, 11:00pm UTC WC Enter >

Woburn Challenge: Online Round 4 (Junior Division)

Apr 08, 2016, 8:00pm UTC Apr 08, 2016, 11:00pm UTC WC Enter >

Woburn Challenge: Online Round 3 (Senior Division)

Feb 12, 2016, 9:00pm UTC Feb 13, 2016, 12:00am UTC WC Enter >

Woburn Challenge: Online Round 3 (Junior Division)

Feb 12, 2016, 9:00pm UTC Feb 13, 2016, 12:00am UTC WC Enter >

Graph Theory Gauntlet (CCC Prep 2016)

Feb 07, 2016, 6:00pm UTC Feb 07, 2016, 9:00pm UTC ECOO Enter >

Woburn Challenge: Online Round 2 (Senior Division)

Dec 11, 2015, 9:00pm UTC Dec 12, 2015, 12:00am UTC WC Enter >

Woburn Challenge: Online Round 2 (Junior Division)

Dec 11, 2015, 9:00pm UTC Dec 12, 2015, 12:00am UTC WC Enter >

Woburn Challenge: Online Round 1 (Senior Division)

Oct 16, 2015, 7:30pm UTC Oct 16, 2015, 10:30pm UTC WC Enter >

Woburn Challenge: Online Round 1 (Junior Division)

Oct 16, 2015, 7:30pm UTC Oct 16, 2015, 10:30pm UTC WC Enter >

The Final Class

Aug 27, 2015, 11:30pm UTC Aug 28, 2015, 1:30am UTC IOI Enter >

Mock CCC 2015 (Senior)

Feb 13, 2015, 6:00pm UTC Feb 17, 2015, 4:59am UTC IOI Enter >

Mock CCC 2015 (Junior)

Feb 13, 2015, 5:00pm UTC Feb 17, 2015, 4:59am UTC IOI Enter >

PEG Test Dec '14 - Complete Searching

Dec 12, 2014, 8:45pm UTC Dec 12, 2014, 10:40pm UTC IOI Enter >

Halloween '14 Test - Math/Greedy/Linesweep

Nov 06, 2014, 8:00pm UTC Nov 06, 2014, 11:00pm UTC IOI Enter >

Halloween Kemonomimi Party 2014

Oct 24, 2014, 4:00pm UTC Nov 03, 2014, 4:00pm UTC IOI Enter >

Vincent Massey SS - Sr. Contest #1

Oct 23, 2014, 7:30pm UTC Oct 23, 2014, 10:00pm UTC IOI Enter >

PEG Test Oct '14 - Nobrainers/Simul/BF

Oct 03, 2014, 7:30pm UTC Oct 03, 2014, 9:45pm UTC ACM Enter >

Maniacal Midsummer Marathon 2014

Jul 01, 2014, 4:00pm UTC Jul 11, 2014, 4:00pm UTC IOI Enter >

ECOO Practice 2014

Mar 27, 2014, 2:00am UTC Apr 11, 2014, 12:00am UTC ECOO Enter >

Mini March Coding Challenge

Mar 07, 2014, 8:30pm UTC Mar 18, 2014, 4:59am UTC IOI Enter >

Mock CCC 2014 (Senior)

Feb 22, 2014, 2:00pm UTC Feb 23, 2014, 11:00pm UTC IOI Enter >

Mock CCC 2014 (Junior)

Feb 22, 2014, 2:00pm UTC Feb 23, 2014, 11:00pm UTC IOI Enter >

Nobrainers for Speed 2

Jan 10, 2014, 8:30pm UTC Jan 10, 2014, 10:30pm UTC ACM Enter >

csetter test

Nov 16, 2013, 2:46am UTC Dec 14, 2013, 3:33am UTC ACM Enter >

Nobrainers for Speed 1

Dec 11, 2013, 8:30pm UTC Dec 11, 2013, 10:30pm UTC ACM Enter >

If - Case Package

Nov 07, 2013, 4:08am UTC Dec 01, 2013, 4:08am UTC IOI Enter >

Test Contest

Nov 14, 2013, 6:54am UTC Nov 15, 2013, 7:44pm UTC IOI Enter >

CSSU Coding Contest 3: Nov. 9, 2013

Nov 09, 2013, 7:00pm UTC Nov 13, 2013, 4:59am UTC IOI Enter >

CSSU Coding Contest 2: Oct. 4

Oct 04, 2013, 1:00pm UTC Oct 07, 2013, 1:00pm UTC IOI Enter >

PEG Diagnostic 2013

Sep 18, 2013, 8:00pm UTC Sep 30, 2013, 8:00pm UTC IOI Enter >

CSSU Coding Contest 1: Sept. 20

Sep 20, 2013, 1:00pm UTC Sep 23, 2013, 1:00pm UTC IOI Enter >

CSSUtest2

Aug 14, 2013, 4:00am UTC Aug 14, 2013, 7:00am UTC ACM Enter >

(half of) NEERC 2010

Jul 26, 2011, 7:30pm UTC Jul 26, 2011, 10:30pm UTC ACM Enter >

2011 Mock CCC

Feb 18, 2011, 5:00am UTC Feb 22, 2011, 5:00am UTC IOI Enter >

clone test

May 01, 2010, 10:08am UTC May 02, 2010, 10:08am UTC ACM Enter >

CCC Practice 4

Feb 19, 2010, 8:00pm UTC Feb 19, 2010, 11:00pm UTC IOI Enter >

Mock DWITE by A.J.

Sep 26, 2009, 7:15pm UTC Sep 26, 2009, 10:15pm UTC ECOO Enter >

ACSL Practice 2009

May 16, 2009, 11:00am UTC May 19, 2009, 11:00am UTC ACM Enter >

ECOO Practice 2

Mar 06, 2009, 8:00pm UTC Mar 06, 2009, 11:00pm UTC ECOO Enter >

ECOO Practice 1

Mar 04, 2009, 8:00pm UTC Mar 04, 2009, 11:00pm UTC ECOO Enter >

Graph Theory (11/12E)

Mar 03, 2009, 6:45pm UTC Mar 04, 2009, 4:59am UTC ACM Enter >

Graph Theory

Feb 18, 2009, 8:40pm UTC Mar 02, 2009, 8:40pm UTC ACM Enter >

Graph Theory 2

Feb 20, 2009, 8:30pm UTC Mar 02, 2009, 8:30pm UTC ACM Enter >

Dynamic Programming Practice

Feb 06, 2009, 8:00pm UTC Mar 02, 2009, 8:00pm UTC ACM Enter >

CCC Practice 1

Jan 31, 2009, 5:00am UTC Feb 24, 2009, 7:37pm UTC IOI Enter >

CCC Practice 2

Feb 13, 2009, 3:00pm UTC Feb 24, 2009, 7:37pm UTC IOI Enter >

CCC Practice 3

Feb 20, 2009, 8:30pm UTC Feb 24, 2009, 6:37pm UTC IOI Enter >

CSSUtest

Jul 25, 2013, 7:53pm UTC Jan 01, 1970, 12:00am UTC ACM Enter >

Contest Formats

ACM
You must solve all test cases correctly in order to earn any points for a problem. Contestants are ranked by the number of problems solved, then the total time penalty, as in the ACM-ICPC.
ECOO
All problems have partial scoring enabled, and time bonus points are awarded on submissions with nonzero scores. Each problem may be submitted up to twice, and bonus points are awarded for a perfect score on the first attempt.
IOI
All problems have partial scoring enabled, and time is ignored. You may submit as many times as you want, and your highest score counts.
WC
All problems have partial scoring enabled. You may submit as many times as you want, and your highest score counts. Ties are broken by time of last submission that increased your total score.