[b]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.[/b]

[b]Problems:[/b] [url=http://wcipeg.com/problem/wc172j1]J1[/url], [url=http://wcipeg.com/problem/wc172j2]J2[/url], [url=http://wcipeg.com/problem/wc172j3]J3/I1[/url], [url=http://wcipeg.com/problem/wc172j4]J4/I2[/url], [url=http://wcipeg.com/problem/wc172s1]I3/S1[/url], [url=http://wcipeg.com/problem/wc172s2]I4/S2[/url], [url=http://wcipeg.com/problem/wc172s3]S3[/url], [url=http://wcipeg.com/problem/wc172s4]S4[/url]

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

To be eligible for prizes, you [b]must[/b] complete this year's registration form (see [url=http://woburnchallenge.com/register]woburnchallenge.com/register[/url]) [b]even if you have participated last year[/b]. If you have already completed in round 1, 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.

[b]2018 Online Round 2[/b]

[i]When:[/i] [b]Friday, February 23th, 2018 from 3:30 pm to 6:30 pm ET[/b]
[i]Where:[/i] The PEG Judge interface ([url=http://wcipeg.com/contests]wcipeg.com/contests[/url])
[i]Format:[/i] 3 divisions, 3 hours, 4 problems, infinite submissions, and live feedback.
[i]Prizes:[/i]
[list][*] Top 8 Senior division winners: [b]$100, $50, $25, $25, $25, $25, $25, $25[/b]
[*] Top 4 Intermediate division winners: [b]$50, $25, $25, $25[/b][/list]Full format and rules can be found at: [url=http://woburnchallenge.com/contest]woburnchallenge.com/contest[/url]
For more details, visit [url=http://woburnchallenge.com]woburnchallenge.com[/url]. For questions, email [url=mailto:[email protected]][email protected][/url].

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!

Thank you for joining us in this year’s Woburn Challenge, new and returning participants alike! It certainly did take us a couple of extra months to get things back in order this contest season – our sincerest apologies for the anticipation! However, you can be sure that we’re back now, ready to challenge you with new rules and a new intermediate division for the new year. Problems, solutions, and test data are now posted [url=http://woburnchallenge.com/past-contests/]here[/url].

The senior division prizewinners are:
[list][*][b]Zixiang Zhou[/b] of University Heights Public School ($100) 
[*][b]Brian Chau[/b] of Woburn Collegiate Institute ($50) 
[*][b]Joey Yu[/b] of Thornhill Secondary School ($25) 
[*][b]Henning Jiang[/b] of Vincent Massey Secondary School ($25) 
[*][b]Anish Mahto[/b] of Turner Fenton Secondary School ($25) 
[*][b]William Fung[/b] of Richmond Hill High School ($25) 
[*][b]Steven Mai[/b] of University of Toronto Schools ($25) 
[*][b]Andrew Tang[/b] of Erindale Secondary School ($25)[/list]The intermediate division prizewinners are:
[list][*][b]Michael Huang[/b] of Bell High School ($50) 
[*][b]Aaron Tang[/b] of Churchill Heights Public School ($25) 
[*][b]Sunny Lan[/b] of Richmond Hill High School ($25) 
[*][b]Kevin Wang[/b] of Glenforest Secondary School ($25)[/list]Finally, we would like to applaud a job well done to the top Junior division finishers: [b]Patrick Jung[/b] and [b]Ri Xin Yang[/b] of Dr. Normal Bethune Collegiate Institute, [b]Young Yu[/b] of Bayview Secondary School, and [b]Henry Guo[/b] 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!

[b]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.[/b]

[b]Problems:[/b] [url=http://wcipeg.com/problem/wc171j1]J1[/url], [url=http://wcipeg.com/problem/wc171j2]J2[/url], [url=http://wcipeg.com/problem/wc171j3]J3/I1[/url], [url=http://wcipeg.com/problem/wc171j4]J4/I2[/url], [url=http://wcipeg.com/problem/wc171s1]I3/S1[/url], [url=http://wcipeg.com/problem/wc171s2]I4/S2[/url], [url=http://wcipeg.com/problem/wc171s3]S3[/url], [url=http://wcipeg.com/problem/wc171s4]S4[/url]

The Woburn Challenge is back for 2018! 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 [b]must[/b] complete this year's registration form (see [url=http://woburnchallenge.com/register]woburnchallenge.com/register[/url]) [b]even if you have participated last year[/b]. 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.

[b]2018 Online Round 1[/b]

[i]When:[/i] [b]Friday, January 26th, 2018 from 3:30 pm to 6:30 pm ET[/b]
[i]Where:[/i] The PEG Judge interface ([url=http://wcipeg.com/contests]wcipeg.com/contests[/url])
[i]Format:[/i] 3 divisions, 3 hours, 4 problems, infinite submissions, and live feedback.
[i]Prizes:[/i]
[list][*] Top 8 Senior division winners: [b]$100, $50, $25, $25, $25, $25, $25, $25[/b]
[*] Top 4 Intermediate division winners: [b]$50, $25, $25, $25[/b][/list]Full format and rules can be found at: [url=http://woburnchallenge.com/contest]woburnchallenge.com/contest[/url]
For more details, visit [url=http://woburnchallenge.com]woburnchallenge.com[/url]. For questions, email [url=mailto:[email protected]][email protected][/url].

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!

After far too long, you can finally access them here. Please report any issues.

CCC:
[url=http://wcipeg.com/problem/ccc17j1]J1 - Quadrant Selection[/url]
[url=http://wcipeg.com/problem/ccc17j2]J2 - Shifty Sum[/url]
[url=http://wcipeg.com/problem/ccc17j3]J3 - Exactly Electrical[/url]
[url=http://wcipeg.com/problem/ccc17j4]J4 - Favourite Times[/url]
[url=http://wcipeg.com/problem/ccc17s1]S1 - Sum Game[/url]
[url=http://wcipeg.com/problem/ccc17s2]S2 - High Tide, Low Tide[/url]
[url=http://wcipeg.com/problem/ccc17s3]J5S3 - Nailed It![/url]
[url=http://wcipeg.com/problem/ccc17s4]S4 - Minimum Cost Flow[/url]
[url=http://wcipeg.com/problem/ccc17s5]S5 - RMT[/url]

CCO:
[url=http://wcipeg.com/problem/ccc17s2p1]Day 1, Problem 1 - Vera and Trail Building[/url]
[url=http://wcipeg.com/problem/ccc17s2p2]Day 1, Problem 2 - Cartesian Conquest[/url]
[url=http://wcipeg.com/problem/ccc17s2p3]Day 1, Problem 3 - Vera and Modern Art[/url]
[url=http://wcipeg.com/problem/ccc17s2p4]Day 2, Problem 1 - Rainfall Storage[/url]
[url=http://wcipeg.com/problem/ccc17s2p5]Day 2, Problem 2 - Professional Network[/url]
[url=http://wcipeg.com/problem/ccc17s2p6]Day 2, Problem 3 - Shifty Grid[/url]

IOI 2016 and 2017 coming soon!

Thank you all who joined us for the Woburn Challenge 2016-17 on-site finals! Yesterday we witnessed 10 schools battle it out for the title of Woburn Challenge champion. In the end, Jason Yuen and William Wen of Pierre Elliott Trudeau High School came out on top of the senior and junior divisions respectively. Thank you to contestants and teachers alike, who stayed with us through to the end of the season.

The contest problems have been cloned to the main judge: [url=http://wcipeg.com/problem/wc16fj1]J1[/url], [url=http://wcipeg.com/problem/wc16fj2]J2[/url], [url=http://wcipeg.com/problem/wc16fs1]J3/S1[/url], [url=http://wcipeg.com/problem/wc16fs2]J4/S2[/url], [url=http://wcipeg.com/problem/wc16fs3]J5/S3[/url], [url=http://wcipeg.com/problem/wc16fs4]S4[/url], [url=http://wcipeg.com/problem/wc16fs5]S5[/url].
Problems, solutions, and test data will be posted shortly to [url=http://woburnchallenge.com/past-contests/]this[/url] page. We truly hope that you enjoyed tackling them.

The senior division prizewinners are:
[list][*][b]Jason Yuen[/b] of Pierre Elliott Trudeau High School ($250)
[*][b]Brian Chau[/b] of Woburn Collegiate Institute ($200)
[*][b]Joey Yu[/b] of Thornhill Secondary School ($150) [/list]The junior division prizewinners are:
[list][*][b]William Wen[/b] of Pierre Elliott Trudeau High School ($150)
[*][b]William Fung[/b] and [b]Sunny Lan[/b] of Richmond Hill High School ($100)
[*][b]Jeffrey Gao[/b] and [b]Richard Yi[/b] of William Lyon Mackenzie Collegiate Institute ($75)[/list]Congratulations! We would love to hear your feedback about how to improve for next year, so please send them to [email protected]. Have a great summer, and don't stop practicing!

Thank you for joining us for the final online round of the year! We found the problems for this round to be tough but fair. There were several perfect scores in both divisions despite how challenging the problems have become. Superb! Problems, solutions, and test data are now posted [url=http://woburnchallenge.com/past-contests/]here[/url].

The senior division prizewinners are:
[list][*][b]Brian Chau[/b] of Woburn Collegiate Institute ($200)
[*][b]Leo Feng[/b] of Vincent Massey Secondary School ($100)
[*][b]Arielle Shannon[/b] of University of Toronto Schools ($50)
[*][b]Zixiang Zhou[/b] of University Heights Public School ($50)
[*][b]William Wen[/b] of Pierre Elliott Trudeau High School ($50)[/list]The junior division prizewinners are:
[list][*][b]Justin Pu[/b] of William Lyon Mackenzie Collegiate Institute ($50)
[*][b]Allan Xu[/b] of Woburn Collegiate Institute ($25)
[*][b]Arsh Raza[/b] of William Lyon Mackenzie Collegiate Institute ($25)[/list]Congratulations! These prizes will be distributed as Visa gift cards, and we will be contacting your teachers shortly about sending them out.

The date of the Woburn Challenge on-site finals will be released in the middle of next week, when the invitations will also be sent out. Be on the lookout!

[b]Edit 2: Test data and analyses are now available [url=http://woburnchallenge.com/past-contests]here[/url]. Results will be posted by the end of the week. Stay tuned for finals invitations![/b]

[b]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 J3 and S1 are the same question, as are J4 and S2. Thus, submissions to J3/J4 are not moved over and junior competitors will have to resubmit them to S1/S2 on the main judge.[/b]

[b]Problems:[/b] [url=http://wcipeg.com/problem/wc164j1]J1[/url], [url=http://wcipeg.com/problem/wc164j2]J2[/url], [url=http://wcipeg.com/problem/wc164s1]J3/S1[/url], [url=http://wcipeg.com/problem/wc164s2]J4/S2[/url], [url=http://wcipeg.com/problem/wc164s3]S3[/url], [url=http://wcipeg.com/problem/wc164s4]S4[/url]

Are you ready for the last round of the year? To be eligible for prizes, you must be a Canadian high school student, and [b]must[/b] have completed this year's registration form ([url=http://woburnchallenge.com/register]woburnchallenge.com/register[/url]) even if you have participated last year. However, everyone else is welcome to participate as an observer. Remember that this is the final online round which can help you and your school secure a position at our invitational finals in May!

[b]2016-17 Online Round 4[/b]

[i]When:[/i] [b]Sunday, April 9th, 2017 from 2:00 pm to 5:00 pm ET[/b]
[i]Where:[/i] The PEG Judge interface ([url=http://wcipeg.com/contests]wcipeg.com/contests[/url])
[i]Format:[/i] 2 divisions, 3 hours, 4 problems, infinite submissions, and live feedback.
[i]Prizes:[/i]
[list][*] Top 3 Junior division winners: [b]$50, $25, $25[/b]
[*] Top 5 Senior division winners: [b]$200, $100, $50, $50, $50[/b][/list]Full format and rules can be found at: [url=http://woburnchallenge.com/contest]woburnchallenge.com/contest[/url]
For more details, visit [url=http://woburnchallenge.com]woburnchallenge.com[/url]. For questions, email [url=mailto:[email protected]][email protected][/url].

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!

Thank you for joining us for round 3 of this year’s Woburn Challenge! Problems, solutions, and test data are now posted [url=http://woburnchallenge.com/past-contests/]here[/url].

This contest proved to be one of our toughest yet, with the third problem of the senior division proven to be especially perplexing due to its ad-hoc nature. You may also have noticed that we decided to provide a kick to the junior division’s difficulty. The reason of course, is to keep all of you (even juniors!) on your toes and habitually challenged! 

The senior division prizewinners are:
[list][*][b]Jason Yuen[/b] of Pierre Elliott Trudeau High School ($200)
[*][b]Joey Yu[/b] of Thornhill Secondary School ($100)
[*][b]William Wen[/b] of Pierre Elliott Trudeau High School ($50)
[*][b]Leo Feng[/b] of Vincent Massey Secondary School ($50)
[*][b]Brian Chau[/b] of Woburn Collegiate Institute ($50)[/list]The junior division prizewinners are:
[list][*][b]Arsh Raza[/b] of William Lyon Mackenzie Collegiate Institute ($50)
[*][b]Justin Pu[/b] of William Lyon Mackenzie Collegiate Institute ($25)
[*][b]Henning Jiang[/b] of Vincent Massey Secondary School ($25)[/list]Congratulations! These prizes will be distributed as Visa gift cards, and we will be contacting your teachers shortly about sending them out. Remember to keep on practicing, since we still have many prizes in the remaining online round, as well as the invitational finals! 

[b]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 J3 and S1 are the same question, as are J4 and S2. Thus, submissions to J3/J4 are not moved over and junior competitors will have to resubmit them to S1/S2 on the main judge.[/b]

[b]Problems:[/b] [url=http://wcipeg.com/problem/wc163j1]J1[/url], [url=http://wcipeg.com/problem/wc163j2]J2[/url], [url=http://wcipeg.com/problem/wc163s1]J3/S1[/url], [url=http://wcipeg.com/problem/wc163s2]J4/S2[/url], [url=http://wcipeg.com/problem/wc163s3]S3[/url], [url=http://wcipeg.com/problem/wc163s4]S4[/url]

Hope all of you had a restful holiday, because Woburn Challenge is back for round 3! To be eligible for prizes, you must be a Canadian high school student, and [b]must[/b] have completed this year's registration form ([url=http://woburnchallenge.com/register]woburnchallenge.com/register[/url]) even if you have participated last year! However, everyone else is welcome to participate as an observer. If you did not participate in round 1 and 2, it's not too late to sign up now!

[b]2016-17 Online Round 3[/b]

[i]When:[/i] [b]Sunday, February 19th, 2017 from 2:00 pm to 5:00 pm ET[/b]
[i]Where:[/i] The PEG Judge interface ([url=http://wcipeg.com/contests]wcipeg.com/contests[/url])
[i]Format:[/i] 2 divisions, 3 hours, 4 problems, infinite submissions, and live feedback.
[i]Prizes:[/i]
[list][*] Top 3 Junior division winners: [b]$50, $25, $25[/b]
[*] Top 5 Senior division winners: [b]$200, $100, $50, $50, $50[/b][/list]Full format and rules can be found at: [url=http://woburnchallenge.com/contest]woburnchallenge.com/contest[/url]
For more details, visit [url=http://woburnchallenge.com]woburnchallenge.com[/url]. For questions, email [url=mailto:[email protected]][email protected][/url].

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!

Thank you for joining us for round 2 of this year’s Woburn Challenge! Problems, solutions, and test data are now posted [url=http://woburnchallenge.com/past-contests/]here[/url].

As you could probably tell, we are cranking up the difficulty as the 2016-17 contest season progresses. While we expect you to be constantly practicing, we are also working to improve the contest experience from our end. In particular, we are aware that the judge was slow to provide live feedback due to the quantity of submissions being queued. In future rounds, improvements to the site and server will be made to help prevent this issue.

The senior division prizewinners are:
[list][*][b]Brian Chau[/b] of Woburn Collegiate Institute ($200)
[*][b]William Wen[/b] of Pierre Elliott Trudeau High School ($100)
[*][b]Jason Yuen[/b] of Pierre Elliott Trudeau High School ($50)
[*][b]Zixiang Zhou[/b] of University Heights Public School ($50)
[*][b]Andrew Lin[/b] of University Hill Secondary School ($50)[/list]The junior division prizewinners are:
[list][*][b]Allan Xu[/b] of Woburn Collegiate Institute ($50)
[*][b]Justin Pu[/b] of William Lyon Mackenzie Collegiate Institute ($25)
[*][b]William Fung[/b] of Richmond Hill High School ($25)[/list]Congratulations! These prizes will be distributed as Visa gift cards, and we will be contacting your teachers shortly about sending them out. Remember that we will have many prizes in the remaining rounds of the year, so keep on practicing!