Waterloo Programming Contests

Waterloo's local Programming Contests are held every term, and conducted according to ACM Rules with the following variances:

• each entrant is a single individual, rather than a team of three
• each contest is 3 hours long, rather than 5
• there are 5 questions, rather than "between 6 and 8 questions"

Mailing list

Upcoming contests

• Saturday, October 3, 2015: North American Qualifier
• Friday/Saturday, October 30/31, 2015: ACM ECNA regional contest, University of Windsor
• January ??, 2016: Winter local contest
• May 15-20, 2016: ACM ICPC World Finals, Phuket, Thailand.

Past contests

27 September, 2015 - Waterloo local contest

• Andy Huang won -- Final standings
• Problem Set
• Judges' data and solutions

18 July, 2015 - Waterloo local contest

• Jacob Jackson won -- Final standings
• Problem Set
• Judges' data

31 January, 2015 - Waterloo local contest

• Geoffry Song won -- Final standings.
• Problem Set
• Judges' data

27 September, 2014 - North American Qualifier contest

• Geoffry Song won -- Final standings.
• Problem Set
• Test data not available

20 September, 2014 - Waterloo local contest

• Antonio Molina Lovett won -- Final standings.
• Problem Set
• Judges' data

1 June, 2014 - Waterloo local contest

• Geoffry Song won -- Final standings.
• Problem Set
• Judges' data

26 January, 2014 - Waterloo local contest

• Geoffry Song won -- Final standings.
• Problem Set The problems in this contest were from the CTU Open Contest 2013.
• Judges' data

28 September, 2013 - Waterloo local contest

• Geoffry Song won -- Final standings.
• Problem Set
• Judges' data

3 March, 2013 - Waterloo local contest

• Geoffry Song won -- Final standings.
• Problem Set
• Judges' data

13 October, 2012 - Waterloo local contest

• Geoffry Song won -- Final standings.
• Problem Set
• Judges' data

16 September, 2012 - Waterloo local contest

• Sao He won -- Final standings.
• Problem Set
• Judges' data
  Five of the test inputs for Problem A were retracted after the contest because they did not satisfy the problem specification. All of the submissions from the contest were re-tested without the retracted test inputs. The re-testing did not change any of the judgements. All submissions that failed on the incorrect inputs also failed in the same way on some other correct input.

15 July, 2012 - Waterloo local contest

• Geoffry Song won -- Final standings.
• Problem Set
• Judges' data

2 October, 2011 - Waterloo local contest

• Anton Raichuk won -- Final standings.
• Problem Set
• Judges' data

24 September, 2011 - Waterloo local contest

• Anton Raichuk won -- Final standings.
• Problem Set
• Judges' data

19 June, 2011 - Waterloo local contest

• Anton Raichuk won -- Final standings.
• Problem Set
• Judges' data

2 October, 2010 - Waterloo local contest

• Brian Bi won -- Final standings.
• Problem Set
• Judges' data and solutions

26 Septemeber, 2010 - Waterloo local contest

• Hanson Wang won -- Final standings.
• Problem Set
• Judges' data and solutions

10 July, 2010 - Waterloo local contest

• Abel Nieto won -- Final standings.
• Problem Set
• Judges' data and solutions

3 October, 2009 - Waterloo local contest

• Peter Wen won -- Final standings.
• Problem Set
• Judges' data and solutions

27 September, 2009 - Waterloo local contest

• Gelin Zhou won -- Final standings.
• Problem Set
• Judges' data and solutions

13 June, 2009 - Waterloo local contest

• Hrushikesh Tilak won -- Final standings.
• Problem Set
• Judges' data and solutions

8 February, 2009 - Waterloo local contest

• Malcolm Sharpe won -- Final standings.
• Problem Set
• Judges' data and solutions

4 October, 2008 - Waterloo local contest

• Tor Myklebust won -- Final standings.
• Problem Set
• Judges' data and solutions

27 September, 2008 - Waterloo local contest

• Malcolm Sharpe won -- Final standings.
• Problem Set
• Judges' data and solutions

15 June, 2008 - Waterloo local contest

• Konstantin Lopyrev won -- Final standings.
• Problem Set
• Judges' data and solutions

29 September, 2007 - Waterloo local contest

• Problems
• Final Standings
• Judge Data and Solutions

23 September, 2007 - Waterloo local contest

• Problems
• Final Standings
• Judge Data and Solutions

14 July, 2007 - Waterloo local contest

• Problems
• Final Standings
• Judge Data and Solutions

30 September, 2006 - Waterloo local contest

• Problems
• Final Standings
• Judge Data and Solutions

24 September, 2006 - Waterloo local contest

• Problems
• Final Standings
• Judge Data and Solutions

27 May, 2006 - Waterloo local contest

• Problems
• Final Standings
• Judge Data and Solutions

25 February, 2006 - Waterloo local contest

• Problems
• Final Standings
• Judge Data and Solutions

24 September, 2005 - Waterloo local contest

• Problems
• Judge data and solutions
• Final Standings

17 September, 2005 - Waterloo local contest

• Problems
• Judge data and solutions
• Final Standings

11 June, 2005 - Alberta/Waterloo local contest

• Problems
• Judge data and solutions
• Final Standings

5 February, 2005 - Waterloo local contest

• Problems
• Final Scores
• Judges' solutions and test data

25 September, 2004 - Waterloo local contest

• Problems
• Final Scores
• Judges' solutions and test data

19 September, 2004 - Waterloo local contest

• Final Scores
• Problems
• Judges' solutions and test data

12 June, 2004 - Alberta/Waterloo local contest

• Final Standings and key to who's who
• Problem Set
• Judge's solutions and data

31 January, 2004 - Waterloo local contest

• Lars Hellsten won - Here are the standings.
• Problem Set
• Judges' data and solutions

27 September, 2003 - Waterloo local contest

• Final Standings
• Problem Set
• Judges' solutions and test data

20 September, 2003 - Waterloo local contest

• Final Standings
• September 21 statement concerning revision of results
• Problem Set
• Judges' solutions and test data

5 July, 2003 - Waterloo local contest

• Standings
• Problem Set
• Judges' solutions and test data

25 January, 2003 - Waterloo local contest

• Standings
• Problem Set
• Judges' solutions and test data

28 September, 2002 - Waterloo local contest

• In conjunction with University of Alberta
• Standings
• Problem Set
• Judges' solutions and test data

21 September, 2002 - Waterloo local contest

• In conjunction with University of Alberta
• Denis Dmitriev wins at Waterloo
• Final Standings
• Gilbert Lee wins at Alberta (and overall)
• Alberta Standings
• Problem Set
• Judges' solutions and test data

1 June, 2002 - Waterloo local contest

• In conjuction with University of Alberta
• Gilbert Lee (Alberta) tops overall!
• Denis Dmitriev top Waterloo finisher (2nd overall).
• Final Standings (merged Alberta and Waterloo)
• Contest Problems
• Judges' data and solutions

23 March, 2002 - ACM World Finals in Honolulu

• Waterloo 3rd in the World!
• Final Standings
• Some Pictures

26 January, 2002 - Waterloo local contest

• Gordon Chiu won
• Final Standings
• Problem Set
• Judges' data and solutions

29 September, 2001 - Waterloo local contest

• Jeff Shute won
• Final Standings
• Problem Set
• Judges' data and solutions

22 September 2001 - Waterloo local contest

• Jeff Shute won
• Final Standings
• Problem Set
• Judges' data and solutions

2 June 2001 - Waterloo local contest

• Denis Dmitriev won
• Contest Questions
• Final standings-- see also--Vallaloid standings
• Judges' solutions and data

10 March 2001 - ACM World Finals in Vancouver

• Held in Vancouver
• Waterloo 4th!
• Final Standings

17 January 2001 - Waterloo local contest

• Ondrej Lhotak won. Here are the final scores.
• Problem Set.
• Solutions and Judging data.

7 November 2000 - ACM East Central Regional Contest

• Waterloo 2nd place
• Held at Case Western University and University of Cincinnati
• Regional contest home page

23 September and 30 September 2000 - Waterloo local contest

• Problems for September 23 Practice
• Problems for September 23 Contest. Solutions and judges' data Results.
• Problems for September 30 Practice
• Problems for September 30 Contest. Data and solutions. Score.

15 March 2000 ACM World Finals

• We are North American Champions
• We are Second in the World
• We are Gold Medalists (tied with winner for questions solved)
• Congratulations to World Champs St. Petersburg State!
• Final Standings

29 January 2000 - Waterloo local contest

• Donny Cheung won!
• Results for Jan 29, 2000
• The questions for Jan 29 appear here
• Solutions and judges' data

13 November 1999 - ACM East Central Regional Contest

• Held at the University of Waterloo (again) - We won! (again)
• Regional Contest Home Page

25 September & 2 October 1999

• Jeff Shute won both contests!

• The questions for the Sept. 25 practice appear here.
• The questions for the Sept. 25 contest proper appear here.
• Judges' data and corresponding output for the Sept. 25 contest appear here.
• Jeff Shute won the Sept. 25 contest. Final standings for Sept. 25

• The questions for the Oct. 2 practice appear here.
• The questions for the Oct. 2 contest proper appear here.
• Jeff Shute won the Oct. 2, contest, too!
• Solutions and judges' data.
• Final standings.

19 June 1999 - UW local contest

• Ondrej Lhotak Won

• Here are the questions, test data, and final scores.
• Alberta, Toronto, and Waterloo ran parallel contests. Here are the combined results.

11 April 1999 - ACM World Championship in Eindhoven, The Netherlands

We won!

• Photos of Waterloo's World Champions
• Kitchener-Waterloo Record article, May 4, 1999.
• Final Standings.

31 January 1999

• Derek Kisman won.
• Standings
• Contest questions
• Test data and sample solutions

14 November 1998 - ACM East Central Regional Contest

• Held at Waterloo. Full contest information.
• Waterloo first and fifth. Final results.
• We are off the the ACM World Finals in Eindhoven, April 1999.

17 October 1998

• Viet-Trung Luu won. Here are the Final Results.
• Questions appear here.
• Solutions and testing data appear here.
• Do question B and mail solution to the judges. So far, Trung and Ryan O'Donnell (of U of T) have sent us correct solutions.
• Warmup questions.

4 October 1998

• David Kennedy won. Here are the Final Results.
• The Official Questions appear here.
• Testing data and sample solutions, too.
• Warmup questions.

6 June 1998

Practice contest

• Contest questions and judges' data
• Final Standings

31 Jan 1998

Practice Contest

• Contest questions

24 Jan 1998

Invitational miniature team competition.

• Contest questions

18 Oct 1997

U of T used the same problem set.

• Warmup questions
• Contest questions
• Final Standings

7 Oct 1997

U of T used almost the same problem set.

• Here are the questions
• Test data and output (tar.gz)
• Final Standings

5 October 1996

• Problem Set (pdf)
• Judges' data and solutions
• Final Standings

28 September 1996

• Problem Set (pdf)
• Judges' data and solutions
• Final Standings

Past Waterloo Contests

• Phil Chong's Contest Archive

More Problems

• Contest Problem Server -- mail in your solutions
• Teamwork in Programming Contests: 3 * 1 = 4, by Fabian Ernst, Jergen Moelands, and Seppo Pieterse _