29 September, 2019 — Waterloo local contest

22 June, 2019 — Waterloo local contest

9 February, 2019 — Waterloo local contest

30 September, 2018 — Waterloo local contest

16 June, 2018 — Waterloo local contest

10 February, 2018 — Waterloo local contest

30 September, 2017 — Waterloo local contest

24 June, 2017 - Waterloo local contest

4 March, 2017 - Waterloo local contest

1 October, 2016 — Waterloo local contest

19 June, 2016 — Waterloo local contest

30 January, 2016 — Waterloo local contest

27 September, 2015 - Waterloo local contest

18 July, 2015 — Waterloo local contest

31 January, 2015 - Waterloo local contest

27 September, 2014 — North American Qualifier contest

20 September, 2014 — Waterloo local contest

1 June, 2014 — Waterloo local contest

26 January, 2014 — Waterloo local contest

28 September, 2013 — Waterloo local contest

3 March, 2013 — Waterloo local contest

13 October, 2012 - Waterloo local contest

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

2 October, 2011 — Waterloo local contest

24 September, 2011 — Waterloo local contest

19 June, 2011 — Waterloo local contest

2 October, 2010 — Waterloo local contest

26 Septemeber, 2010 — Waterloo local contest

10 July, 2010 — Waterloo local contest

3 October, 2009 — Waterloo local contest

27 September, 2009 — Waterloo local contest

13 June, 2009 — Waterloo local contest

8 February, 2009 — Waterloo local contest

4 October, 2008 — Waterloo local contest

27 September, 2008 — Waterloo local contest

15 June, 2008 - Waterloo local contest

29 September, 2007 — Waterloo local contest

23 September, 2007 — Waterloo local contest

14 July, 2007 — Waterloo local contest

30 September, 2006 — Waterloo local contest

24 September, 2006 - Waterloo local contest

27 May, 2006 — Waterloo local contest

25 February, 2006 — Waterloo local contest

24 September, 2005 — Waterloo local contest

17 September, 2005 — Waterloo local contest

11 June, 2005 — Alberta/Waterloo local contest

Special thanks to Piotr Rudnicki for compiling this contest.

5 February, 2005 — Waterloo local contest

25 September, 2004 - Waterloo local contest

19 September, 2004 — Waterloo local contest

12 June, 2004 — Alberta/Waterloo local contest

Special thanks to Piotr Rudnicki for compiling this contest.

31 January, 2004 — Waterloo local contest

27 September, 2003 — Waterloo local contest

20 September, 2003 — Waterloo local contest

5 July, 2003 — Waterloo local contest

25 January, 2003 — Waterloo local contest

28 September, 2002 — Waterloo local contest

21 September, 2002 — Waterloo local contest

1 June, 2002 — Waterloo local contest

23 March, 2002 — ACM World Finals in Honolulu

26 January, 2002 — Waterloo local contest

29 September, 2001 — Waterloo local contest

22 September 2001 — Waterloo local contest

2 June 2001 — Waterloo local contest

10 March 2001 — ACM World Finals in Vancouver

17 January 2001 — Waterloo local contest

7 November 2000 — ACM East Central Regional Contest

23 September and 30 September 2000 — Waterloo local contest

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

13 November 1999 — ACM East Central Regional Contest

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

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

We won!

31 January 1999

14 November 1998 — ACM East Central Regional Contest

17 October 1998

4 October 1998

6 June 1998

Practice contest

31 Jan 1998

Practice Contest

24 Jan 1998

Invitational miniature team competition.

18 Oct 1997

U of T used the same problem set.

7 Oct 1997

U of T used almost the same problem set.

5 October 1996

28 September 1996