[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![/b]

[b]Edit 2: The contest problems have been posted to ([url=http://woburnchallenge.com/past-contests]woburnchallenge.com/past-contests[/url]) and also cloned to the main judge. Feel free to submit to them for practice while we work on publishing results and analyses.[/b]

Junior Problems: [url=http://wcipeg.com/problem/wc153j1]J1[/url], [url=http://wcipeg.com/problem/wc153j2]J2[/url], [url=http://wcipeg.com/problem/wc153j3]J3[/url], [url=http://wcipeg.com/problem/wc153j4]J4[/url]
Senior Problems: [url=http://wcipeg.com/problem/wc153s1]S1[/url], [url=http://wcipeg.com/problem/wc153s2]S2[/url], [url=http://wcipeg.com/problem/wc153s3]S3[/url], [url=http://wcipeg.com/problem/wc153s4]S4[/url]

Round 3 is here! Sorry for this late announcement on the judge. In the future, just make sure to check in on our website and your emails for more punctual updates. The format will be exactly like the first two round (possible with different problem weightings). If you didn't participate in the last round(s), it is not too late to jump in now. New competitors can read more about the contest and register at [url=http://woburnchallenge.com/register]woburnchallenge.com/register[/url]. [b]If you have already registered through this process in rounds 1 or 2, you do not have to do it again.[/b] Once again, 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]Online Round 3[/b]

[i]When:[/i] [b]Friday, February 12th, 2016 from 4:00 pm to 7:00 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].

Good luck and enjoy the problems!

Sockpuppeting is not an acceptable practice. Creating new accounts for the sole purpose of voting posts up or down is not permitted. When there were only one or two, that wasn't a big deal. But this is ridiculous, guys. I found about 20 sockpuppet accounts today.

Moving forward, I'll be deleting any sockpuppet accounts I find. We are able to link sockpuppets to main accounts. Be warned: your main account may suffer sanctions, including temporary or permanent bans from the site.

Thank to all of you who took part in round 2, new and returning competitors alike! Problems, solutions, and test data are now available in the "Past Contests" section of this site. With our experience from the previous contest, we’ve rounded out the edges to make this one much smoother for everyone involved. We hope you enjoyed the Star Wars themed storylines that were prepared in tribute to the imminent release of [i]The Force Awakens[/i]. While the plot of the film remains to be unveiled, we dare say that we’ve at least tried our hands at some bold forecasting in problems J4 and S4.

Click [url=http://woburnchallenge.com/s/wc-2015-16-round2-results.pdf]here[/url] for full results to the contest. Problems, solutions, and test data are now available [url=http://woburnchallenge.com/past-contests/]here[/url].

The senior division prizewinners for this round are:
[list][*][b]Timothy Li[/b] of Don Mills Collegiate Institute ($200)
[*][b]Leo Feng[/b] of Vincent Massey Secondary School ($100)
[*][b]Spencer Whitehead[/b] of Lisgar Collegiate Institute ($50)
[*][b]Ahmed Sabie[/b] of Glenforest Secondary School ($50)
[*][b]Jeffrey Xiao[/b] of University of Toronto Schools ($50)[/list]The junior division prizewinners for this round are:
[list][*][b]Christopher DeGuzman[/b] of Glenforest Secondary School ($50)
[*][b]William Huang[/b] of Woburn Collegiate Institute ($25)
[*][b]Siddhant Jain[/b] of University of Toronto Schools ($25)[/list]Congratulations to all of you! These prizes will be distributed as Mastercard gift cards, and we will be contacting your teachers shortly about sending them out. If you haven't won a prize, keep on practicing! We have many more prize opportunities for you throughout the year.

[b]Edit: The contest is over! Many thanks to all of you who participated. We will be posting prizewinners and analyses to all of the problems shortly. Check here, as well as our website periodically![/b]

[b]Edit 2: The contest problems have been posted to ([url=http://woburnchallenge.com/past-contests]woburnchallenge.com/past-contests[/url]) and also cloned to the main judge. Feel free to submit to them for practice while we work on publishing results and analyses.[/b]

Junior Problems: [url=http://wcipeg.com/problem/wc152j1]J1[/url], [url=http://wcipeg.com/problem/wc152j2]J2[/url], [url=http://wcipeg.com/problem/wc152j3]J3[/url], [url=http://wcipeg.com/problem/wc152j4]J4[/url]
Senior Problems: [url=http://wcipeg.com/problem/wc152s1]S1[/url], [url=http://wcipeg.com/problem/wc152s2]S2[/url], [url=http://wcipeg.com/problem/wc152s3]S3[/url], [url=http://wcipeg.com/problem/wc152s4]S4[/url]


Thanks to all of you that participated in round 1 and we hope you're ready for another. The format will be exactly like the first round. If you didn't participate last round, it is not too late to jump in now. New competitors can read more about the contest and register at 
[url=http://woburnchallenge.com/register]woburnchallenge.com/register[/url]. [b]If you have already registered through this process in round 1, you do not have to do it again.[/b] Once again, 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]Online Round 2[/b]

[i]When:[/i] [b]Friday, December 11th, 2015 from 4:00 pm to 7:00 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].

Good luck and enjoy the problems!

Effective immediately, you must solve aplusb before you may post a comment.

Sorry for the inconvenience.

Thank you all for participating! For this round, we had 178 registered competitors from over 29 schools. There were 6 perfect scores in the senior division and 3 perfect scores in the junior division. The problems had varying difficulties, and hopefully there was something that challenged every one of you. If not, look forward to even more challenging puzzles in the rounds to come.

Click [url=http://woburnchallenge.com/s/wc-2015-16-round1-results.pdf]here[/url] for full results to the contest. Problems, solutions, and test data are now available [url=http://woburnchallenge.com/past-contests/]here[/url].

The senior division prizewinners for this round are:
[list][*][b]Timothy Li[/b] of Don Mills Collegiate Institute ($200)
[*][b]Ahmed Sabie[/b] of Glenforest Secondary School ($100) 
[*][b]Jeffrey Xiao[/b] of University of Toronto Schools ($50)
[*][b]Bill Zheng[/b] of Richmond Green Secondary School ($50)
[*][b]Brian Chau[/b] of Woburn Collegiate Institute ($50)[/list]The junior division prizewinners for this round are:
[list][*][b]Sunny Lan[/b] of Richmond Hill High School ($50)
[*][b]William Huang[/b] of Woburn Collegiate Institute ($25)
[*][b]Jamie Pinheiro[/b] of St. Francis Xavier Secondary School ($25)[/list]Congratulations to all of you! These prizes will be distributed as Mastercard gift cards, and we will be contacting your teachers shortly about sending them out. If you haven't won a prize, keep on practicing! We have many more prize opportunities for you throughout the year.

[b]Edit: The contest is over! Many thanks to all of you who participated. We will be posting prizewinners and analyses to all of the problems shortly. Check here, as well as [url=http://woburnchallenge.com/news-1]our website[/url] periodically![/b]


[b]Edit 2: The problems have been cloned to the main judge. Feel free to submit to them for practice while we work on publishing results and analyses.[/b]
Junior Problems: [url=http://wcipeg.com/problem/wc151j1]J1[/url], [url=http://wcipeg.com/problem/wc151j2]J2[/url], [url=http://wcipeg.com/problem/wc151j3]J3[/url], [url=http://wcipeg.com/problem/wc151j4]J4[/url]
Senior Problems: [url=http://wcipeg.com/problem/wc151s1]S1[/url], [url=http://wcipeg.com/problem/wc151s2]S2[/url], [url=http://wcipeg.com/problem/wc151s3]S3[/url], [url=http://wcipeg.com/problem/wc151s4]S4[/url]


----------------------------------------------------

From the mid-1990s to the early 2000s, the Woburn Challenge was an annual computer programming competition hosted and run by Woburn C.I.'s Programming Enrichment Group. We feel that the time is right to relaunch this free and fun competition for aspiring computer science students in Canada. This year, we're prepared to give out thousands of dollars in prizes to top-performing primary and secondary school students in Canada. If you are a Canadian primary or secondary school student (grades 1-12), you must follow the registration instructions at [url=http://woburnchallenge.com/register]woburnchallenge.com/register[/url] to be officially eligible for prizes. While only this group of people can receive prizes, everyone is welcome to participate in the online rounds as observers.

This year, we're hosting 4 online rounds (each with a prize pool of over $500) and an in-person invitational finals at the end of the school year (even larger prizes to be announced!). The rounds will take place in October, December, February, April, and early June (for the finals).

[b]Online Round 1[/b]

[i]When:[/i] [b]Friday, October 16th, 2015 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] 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].

Good luck!

I have removed all the old SHA-1 hashes, so if you didn't login or change your password during the last 30 days as instructed by a previous announcement, you will no longer be able to login.

If you can't login, please use the forgotten password feature to reset your password and set the new bcrypt hash.

The 30 day deadline given in http://wcipeg.com/announcement/6881 has almost expired.

If you haven't logged in or changed your password since the announcement, you must do so by tomorrow, otherwise you [b]will not be able to log in[/b] and will need to use the password reset feature to reset your password before you log in again.

Please note that simply browsing the site while logged in is not sufficient. You must log out and back in again so that your password will be hashed using the new hashing algorithm.

The non-interactive problems from IOI 2015 have been added. Please report any issues you find.

[url=http://wcipeg.com/problem/ioi1511]Day 1, Problem 1 - Boxes with Souvenirs[/url]
[url=http://wcipeg.com/problem/ioi1513]Day 1, Problem 3 - Teams[/url]
[url=http://wcipeg.com/problem/ioi1521]Day 2, Problem 1 - Horses[/url]
[url=http://wcipeg.com/problem/ioi1522]Day 2, Problem 2 - Sorting[/url]