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Woburn Challenge round 2 results are now available!

by Alex on Dec 18, 2018 - 3:09:47 am UTC
  • (0/0)
Thank you for joining us in a new season, new and returning participants alike! This was the first online round in over two years without a perfect Senior score! Problems, solutions, and test data are now posted here.

The senior division prizewinners are:
  • Brian Chau of Woburn Collegiate Institute ($100)
  • Zixiang Zhou of London Central Secondary School ($50)
  • Henning Jiang of Vincent Massey Secondary School ($25)
  • David Tang of University of Toronto Schools ($25)
  • Royi Luo of Richmond Hill Secondary School ($25)
  • Dan Bo Yang of Iroquois Ridge High School ($25)
  • William Li of University of Toronto Schools ($25)
  • Sharujan Sreekaran of Glenforest Secondary School ($25)
The intermediate division prizewinners are:
  • Evan Zhang of William Lyon Mackenzie Collegiate Institute ($50)
  • Jason Xiong of University of Toronto Schools ($25)
  • Michael Huang of Bell High School ($25)
  • Yi Deng of William Lyon Mackenzie Collegiate Institute ($25)
Finally, we would like to applaud a job well done to the top Junior division finishers: Moses Xu of Appleby College, Eric Wang and Leo Tong of Glenforest Secondary School, and Allen Tao of Colonel By Secondary School.

Congratulations! These prizes will be distributed as Visa gift cards during the on-site finals in May to which all of the above winners are invited (more details to come later). Do not fret if you may not be able to make the final round in person – we will mail your prize to you afterwards. Remember that we will have many prizes in the remaining rounds of the year, so keep on practicing!

Woburn Challenge Online Round 2

by Alex on Nov 29, 2018 - 12:33:48 am UTC
  • (1/0)
Edit: The contest is over! Many thanks to all of you who participated. The questions have been cloned to the main judge. Problems, solutions, and test data have been posted to https://woburnchallenge.com/past-contests. We will be posting prizewinners shortly. Check here, as well as our website periodically! Feel free to submit to them for practice while we work on publishing the results. Note that questions are shared between divisions. In particular, submissions to all intermediate problems are not moved over and intermediate competitors will have to resubmit them on the main judge.

Problems: J1, J2, J3/I1, J4/I2, I3/S1, I4/S2, S3, S4

Another round is coming your way. All newcomers are welcome, so don't miss it!

To be eligible for prizes, you must complete this year's registration form (see woburnchallenge.com/register) even if you have participated last year. If you have already completed in earlier rounds this season, you do not need to do so again. If you have an existing PEG Judge username, you can continue using it. All Canadian high school students are eligible for prizes (you must be first registered through the aforementioned website), but everyone with a PEG Judge account is welcome to participate.

2018-19 Online Round 2

When: Friday, December 14th, 2018 from 3:30 pm to 6:30 pm ET
Where: The PEG Judge interface (wcipeg.com/contests)
Format: 3 divisions, 3 hours, 4 problems, infinite submissions, and live feedback.
Prizes:
  • Top 8 Senior division winners: $100, $50, $25, $25, $25, $25, $25, $25
  • Top 4 Intermediate division winners: $50, $25, $25, $25
Full format and rules can be found at: woburnchallenge.com/contest
For more details, visit woburnchallenge.com. For questions, email [email protected].

Finally, please forward this to your friends (especially at other schools) who are interested in computer programming -- we want to get more students involved!

Good luck and enjoy the problems!

Judge may be buggy after database issues

by bbi5291 on Nov 23, 2018 - 5:22:14 am UTC
  • (3/0)
Hi all,

Due to a failed database upgrade, some data were temporarily lost. Due to an unfortunate coincidence, the backups were temporarily unavailable, so I had to recover the data using some more sketchy means. I believe all data have been recovered successfully, but if you notice any unexpected errors over the next few weeks, please report them here.

Woburn Challenge round 1 results are now available!

by Alex on Nov 17, 2018 - 10:59:32 pm UTC
  • (1/0)
Thank you for joining us in a new season, new and returning participants alike! This round was certainly a learning experience for us. The system has been improved, so we are hoping for the best in round 2. Problems, solutions, and test data are now posted here.

The senior division prizewinners are:
  • Zixiang Zhou of London Central Secondary School ($100)
  • Andrew Qi Tang of Erindale Secondary School ($50)
  • Royi Luo of Richmond Hill High School ($25)
  • Sunny Lan of Richmond Hill High School ($25)
  • Alex Tianyi Xu of White Oaks Secondary School ($25)
  • Michael Huang of Bell High School ($25)
  • Anish Mahto of Turner Fenton Secondary School ($25)
  • Brian Chau of Woburn Collegiate Institute ($25)
The intermediate division prizewinners are:
  • Evan Zhang of William Lyon Mackenzie Collegiate Institute ($50)
  • Aaron Tang of Churchill Heights Public School ($25)
  • Yi Deng of William Lyon Mackenzie Collegiate Institute ($25)
  • Robert Chung of Woburn Collegiate Institute ($25)
Finally, we would like to applaud a job well done to the top junior division finishers: Albert Lai and Jerry Zhu of Pierre Elliott Trudeau High School, Eric Pu of Stephen Lewis Secondary School, and Eric Wang of Glenforest Secondary School.

Congratulations! These prizes will be distributed as Visa gift cards during the on-site finals in May to which all of the above winners are invited (more details to come later). Do not fret if you may not be able to make the final round in person – we will mail your prize to you afterwards. Remember that we will have many prizes in the remaining rounds of the year, so keep on practicing!

Issues with Judge Capacity

by bbi5291 on Nov 16, 2018 - 11:33:56 pm UTC
  • (3/0)
Hi all,

We apologize for the issues with grading Woburn Challenge submissions today. High levels of participation, problems with a large number of test cases, together with poor architectural decisions that I take responsibility for, resulted in the Judge coming under more load than it could handle and forced us to effectively run the contest in "offline submission" mode. I have identified the root causes and will fix them before the next round.

Woburn Challenge 2018-19 Online Round 1

by Alex on Oct 29, 2018 - 8:04:30 pm UTC
  • (0/0)
Edit 2: All solutions have been judged, and final results will be announced over the next few days. Problems and submissions have been copied to the main judge. Note that questions are shared between divisions. In particular, submissions to all intermediate problems are not moved over and intermediate contestants will have to resubmit to get points on the main judge.

Problems: J1, J2, J3/I1, J4/I2, I3/S1, I4/S2, S3, S4

Edit: The contest is over! We realize that the submission queue for this round was heavily backlogged and apologize for the inconvenience. Submissions will remain to be judged for the next while, and results will not be finalized until the end of the night. After that, we will move the problems to the main judge. While you wait, please feel free to check out the solutions and test data, which have been posted here: https://woburnchallenge.com/past-contests. Thank you for your understanding.

The Woburn Challenge is back for another season! We've awarded thousands of dollars in prizes last year and are excited to do it again this year.

To be eligible for prizes, you must complete this year's registration form (see woburnchallenge.com/register) even if you have participated last year. If you have an existing PEG Judge username, you can continue using it. All Canadian high school students are eligible for prizes (you must be first registered through the aforementioned website), but everyone with a PEG Judge account is welcome to participate.

2018-19 Online Round 1

When: Friday, November 16th, 2018 from 3:30 pm to 6:30 pm ET
Where: The PEG Judge interface (wcipeg.com/contests)
Format: 3 divisions, 3 hours, 4 problems, infinite submissions, and live feedback.
Prizes:
  • Top 8 Senior division winners: $100, $50, $25, $25, $25, $25, $25, $25
  • Top 4 Intermediate division winners: $50, $25, $25, $25
Full format and rules can be found at: woburnchallenge.com/contest
For more details, visit woburnchallenge.com. For questions, email [email protected].

Finally, please forward this to your friends (especially at other schools) who are interested in computer programming -- we want to get more students involved!

Good luck and enjoy the problems!

Woburn Challenge 2018 Finals Results

by Alex on May 13, 2018 - 9:52:48 pm UTC
  • (2/0)
The Woburn Challenge 2018 on-site finals was one for the books! We witnessed 25 teams from 13 schools battle it out for the coveted title of Woburn Challenge Champion. In the end, team William Lyon Mackenzie C.I. were victors of the junior division, narrowly inching out team 4 from Churchill Heights P.S. by a time penalty of 10 short minutes. Unfortunately, we were struck by the test data gremlins today. Due to incorrect data for problem J5/S3, Joey Yu and Zixiang Zhou are declared the conjoint champions of the senior division! The corrected version of the problem and data has been copied to the main judge, where in-contest submissions have been rejudged.

The senior division prizewinners are:
  • Joey Yu of Thornhill Secondary School ($250)
  • Zixiang Zhou of University Heights Public School ($250)
  • Brian Chau of Woburn Collegiate Institute ($150)
The junior division prizewinners are:
  • Yi Deng, Evan Zhang, and Jeffrey Gao of William Lyon Mackenzie Collegiate Institute ($150)
  • Aaron Tang and Robert Chung of Churchill Heights Public School ($100)
  • Bill Hu, David Tang, and Andrew Marin of University of Toronto Schools ($50)
Congratulations! For all online-round prizewinners who could not join us today, we will be getting in contact with your teachers shortly about sending your prizes by mail. We truly hope that you enjoyed tackling all the problems which we have prepared with love. Thanks to all the helping hands that made this event possible, as well as contestants and teachers alike, who stayed with us through to the end of the season. We would love to hear your feedback about how to improve for next year, so please send them to [email protected] That said, we hope you enjoyed the last round of the season and look forward to bringing you many more exciting challenges next year!

All of the problems have been cloned to the main judge and can be found here: J1, J2, J3/S1, J4/S2, J5/S3 (corrected!), S4, S5.
Full results, problems, and solutions are now posted at: woburnchallenge.com/past-contests

Woburn Challenge round 4 results are now available!

by Alex on Apr 23, 2018 - 1:30:16 am UTC
  • (0/0)
Thank you for joining us in our fourth online round, new and returning participants alike. Our anticipation for the premiere of Avengers: Infinity War is surpassed only by our anticipation for the finals next month! Problems, solutions, and test data are now posted here.

The senior division prizewinners are:
  • Brian Chau of Woburn Collegiate Institute ($100)
  • Zixiang Zhou of University Heights Public School ($50)
  • Alex Xu of White Oaks Secondary School ($25)
  • Joey Yu of Thornhill Secondary School ($25)
  • Ava Pun of Marc Garneau Collegiate Institute ($25)
  • Henning Jiang of Vincent Massey Secondary School ($25)
  • Sunny Lan of Richmond Hill High School ($25)
  • Andrew Tang of Erindale Secondary School ($25)
The intermediate division prizewinners are:
  • Michael Huang of Bell High School ($50)
  • Aaron Tang of Churchill Heights Public School ($25)
  • Yi Deng of William Lyon Mackenzie Collegiate Institute ($25)
  • Evan Zhang of William Lyon Mackenzie Collegiate Institute ($25)
Finally, a job well done to the top Junior finishers with perfect scores: Henry Guo of A.Y. Jackson S.S., Michael Sheinman of Grimsby S.S., Eric Gu of Glenforest S.S., and Robert Chung of Churchill Heights P.S. To all you juniors who are doing so well – we suggest moving yourself up to intermediate next year for an even greater challenge!

Congratulations! These prizes will be distributed as Visa gift cards during the on-site finals in May. Do not fret if you may not be able to make the final round in person – we will mail your prize to you afterwards.

P. S. The date and location of the finals will be released during the week, when invitations will also be distributed. Be on the lookout!

Woburn Challenge Online Round 4

by Alex on Apr 11, 2018 - 7:54:36 am UTC
  • (0/0)
Edit: The contest is over! Many thanks to all of you who participated. The questions have been cloned to the main judge. We will be posting prizewinners and analyses to all of the problems shortly. Check here, as well as our website periodically! Feel free to submit to them for practice while we work on publishing results and analyses. Note that questions are shared between divisions. In particular, submissions to all intermediate problems are not moved over and intermediate competitors will have to resubmit them on the main judge.

Problems: J1, J2, J3/I1, J4/I2, I3/S1, I4/S2, S3, S4

The end is nigh. Let's see what you've got in the last round of the year.

To be eligible for prizes, you must complete this year's registration form (see woburnchallenge.com/register) even if you have participated last year. If you have already completed in rounds 1 to 3, you do not need to do so again. If you have an existing PEG Judge username, you can continue using it. All Canadian high school students are eligible for prizes (you must be first registered through the aforementioned website), but everyone with a PEG Judge account is welcome to participate.

2018 Online Round 4

When: Friday, April 20th, 2018 from 3:30 pm to 6:30 pm ET
Where: The PEG Judge interface (wcipeg.com/contests)
Format: 3 divisions, 3 hours, 4 problems, infinite submissions, and live feedback.
Prizes:
  • Top 8 Senior division winners: $100, $50, $25, $25, $25, $25, $25, $25
  • Top 4 Intermediate division winners: $50, $25, $25, $25
Full format and rules can be found at: woburnchallenge.com/contest
For more details, visit woburnchallenge.com. For questions, email [email protected].

Please forward this to your friends (especially at other schools) who are interested in computer programming -- we want to get more students involved!

Good luck and enjoy the problems!

P.S. Just a heads up that the on-site finals (by invitation) will take place in the middle of May. We have our sights set on Sunday, May 13th but this remains to be finalized. More details will be given after the 4th round is over, when invitations will be sent out.

Woburn Challenge round 3 results are now available!

by Alex on Mar 28, 2018 - 2:36:02 am UTC
  • (0/0)
Thank you for joining us in another round, new and returning participants alike! The finals are coming into view, and we hope you’re finding our questions more mind-bending than ever! Problems, solutions, and test data are now posted here.

The senior division prizewinners are:
  • Brian Chau of Woburn Collegiate Institute ($100)
  • Zixiang Zhou of University Heights Public School ($50)
  • Ava Pun of Marc Garneau Collegiate Institute ($25)
  • Allan Xu of Woburn Collegiate Institute ($25)
  • Evan Yu of Iroquois Ridge High School ($25)
  • Arielle Shannon of University of Toronto Schools ($25)
  • Henning Jiang of Vincent Massey Secondary School ($25)
  • William Huang of Woburn Collegiate Institute ($25)
The intermediate division prizewinners are:
  • Michael Huang of Bell High School ($50)
  • Sharujan Sreekaran of Glenforest Secondary School ($25)
  • Aaron Tang of Churchill Heights Public School ($25)
  • Jeffrey Gao of William Lyon Mackenzie Collegiate Institute ($25)
Finally, we would like to applaud a job well done to the top Junior finishers (all with perfect scores): Robert Chung of Churchill Heights Public School, and Henry Guo of A.Y. Jackson Secondary School.

Congratulations! These prizes will be distributed as Visa gift cards during the on-site finals in May to which all of the above winners are invited (more details to come later). Do not fret if you may not be able to make the final round in person – we will mail your prize to you afterwards. Remember that we will have many prizes in the remaining rounds of the year, so keep on practicing!