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Competitive Programming Contest '19

crackersamdjam, Plasmatic, Dormi, wleung_bvg, Rimuru posted on April 30, 2019, 11:03 p.m. 14

Thanks for participating in the Competitive Programming '19 Contest!

The winners are:

  1. d (perfect score!)
  2. scanhex
  3. george_chen
  4. zhouzixiang2004
  5. retrograd

Editorials for each of the problems have been uploaded to the respective problem pages.

Once again, a final thank you to all who participated, and to the problem authors!


Welcome to a non-standard DMOJ contest!

From May 4th to May 5th, we'll be hosting the Competitive Programming Contest!

The problem setters are: Rimuru, Plasmatic, crackersamdjam, Dormi, and wleung_bvg.

Anyone with a DMOJ account is welcome to participate, and anyone without one is welcome to register and participate.

Contestants may participate in any 3-hour window between May 4, 9:00 AM to May 5, 9:00 PM. Please see the contest page for more details.

TLE 2018-19

eric574, Darcy_Liu, __ posted on March 21, 2019, 11:47 p.m. 1

After a nearly year-long hiatus, we're excited to announce the 2018-19 Trudeau Logic Evaluation!

The problem setters of this contest are eric574, Darcy_Liu, and __, the current leaders of the Pierre Elliott Trudeau High School Computer Science Club. But don't fret, as all problems have been tested and approved by ZQFMGB12 and d!

The TLE 2018-19 is a 3-hour virtual contest, which will allow contestants to participate in any 3-hour window from 12:00 AM EDT, March 30, 2019 to 11:59 PM EDT, April 5, 2019. Please see the contest page for more details.

We hope that you will enjoy the contest!

DMOPC '18 March Contest

Kirito, r3mark, AvaLovelace posted on March 4, 2019, 2:45 p.m. 0

Thanks for participating in the DMOPC '18 March contest!

Once again, we apologize for the incorrect P6. It has been removed from the contest. Anyone who feels they were significantly affected by this is asked to DM Kirito on Slack.

Congratulations to everyone who got a perfect score!

  1. ainta
  2. arknave
  3. zhouzixiang2004
  4. neal
  5. d
  6. SourSpinach
  7. bruce
  8. wleung_bvg
  9. dgfjesbovnaiwsp
  10. Ninjaclasher
  11. AQT
  12. insect
  13. arararararararararararararagi
  14. ADMathNoob
  15. faustaadp

Editorials for each of the problems have been uploaded to the respective problem pages.

We hope you enjoyed the contest, and we hope to see you at DMPG!


On Tuesday, March 12th we'll be hosting the March DMOJ Monthly Open Programming Contest!

Anyone with a DMOJ account is welcome to participate, and anyone without one is welcome to register and participate.

Contestants may participate in any 3-hour window between noon EST of Mar. 12th and noon EST of Mar. 13th. Please see the contest page for more details.

See you soon!

CCC '19 Problems Posted

quantum posted on Feb. 26, 2019, 1:09 a.m. 15

All problems from this year's CCC have been added. You may access them here.

Hope you enjoyed this year's CCC!

DMOPC '18 February Contest

Kirito, r3mark, AvaLovelace posted on Feb. 12, 2019, 8:15 p.m. 4

Thanks for participating in the DMOPC '18 February contest!

The winners are:

  1. ainta (perfect score)
  2. zhouzixiang2004
  3. d
  4. dgfjesbovnaiwsp
  5. wleung_bvg

Editorials for each of the problems have been uploaded to the respective problem pages.

We hope you enjoyed the contest, and see you next month!


On Sunday, February 17th and Monday, February 18th, we'll be hosting the February DMOJ Monthly Open Programming Contest!

Anyone with a DMOJ account is welcome to participate, and anyone without one is welcome to register and participate.

Contestants may participate in any 3-hour window between 9:00 am EST of Feb. 17th and 9:00 pm EST of Feb. 18th. Please see the contest page for more details.

See you soon!

Don Mills Programming Gala 2019

Kirito, r3mark, george_chen, AvaLovelace posted on Feb. 9, 2019, 11:18 a.m. 6

Congratulations to the winners!

Gold Division (Toronto Site)

  1. Marc Garneau Team 1
  2. UTS Team 7
  3. Richmond Hill Team 1

Gold Division (Ottawa Site)

  1. Bell Team 2

Silver Division (Toronto Site)

  1. Appleby Team 10
  2. Don Mills Team 9
  3. Mackenzie Team 5

Silver Division (Ottawa Site)

  1. Colonel By Team 12
  2. Bell Team 1
  3. Colonel By Team 2

Bronze Division (Toronto Site)

  1. Thornhill Team 1 (perfect score)
  2. Richmond Hill Team 10
  3. Thornhill Team 2

Bronze Division (Ottawa Site)

  1. Colonel By Team 10
  2. Colonel By Team 19
  3. Lisgar Team 2

Editorials for each of the problems have been uploaded to the respective problem pages.

We hope you enjoyed the contest, and see you next year!


As the academic year comes to an end, we'll be holding our final DMOPC in the form of the Don Mills Programming Gala.

This event will take place at Don Mills C.I. on Thursday, April 25th.

The contest will be split into three divisions of increasing difficulty, with prizes awarded to the top competitors. For interested competitors unable to attend the on-site event, we will also be hosting mirrors of the divisions, open for anyone to participate in.

Space is limited, so sign up soon! More details and registration options may be found here. You can find the results of last year's DMPG here.

Valentine's Day Contest 2019

Ninjaclasher, Rimuru posted on Feb. 3, 2019, 9:14 p.m. 1

We welcome you to this year's Valentine's Day Contest! Because the CCC is coming up, the Valentine's Day Contest will be in CCC format, with two divisions, each with five problems each to solve in 3 hours, with a maximum of 50 submissions per problem. The window will open at 9AM EST on the 14th and will run until 9PM on the 16th.

We'll be running both junior and senior divisions. Please see the respective contest pages for more details.

Problem setters for this contest are Ninjaclasher, Rimuru, Beautiful_Times, c, crackersamdjam, and richardyi25.

Mock CCC '19 Contest 1

xiaowuc1 posted on Jan. 17, 2019, 7:00 p.m. 0

The Canadian Computing Competition is in just over a month! Once again, a mock CCC has been prepared for individuals wishing to get additional practice for the CCC.

The first mock CCC this year will run during the weekend of January 19th. The junior and senior divisions do not share any problems, so you can participate in both if you want additional practice! Although we announced beforehand that the senior contest would be rated, it will no longer be rated.

We expect all contestants to write the mock CCC under real CCC conditions. Please read the rules on the contest page to ensure that you are in compliance. In particular, we would like to remind all contestants that you may not use any pre-written code.

Good luck to everyone writing the CCC!

New Year's 2019

Kirito, r3mark, Eliden, AvaLovelace posted on Jan. 1, 2019, 1:55 p.m. 0

Thanks for participating in the New Year's 2019 Contest!

The winners are:

  1. ksun48
  2. lg52931
  3. SourSpinach
  4. fjzzq2002
  5. kyleliu11111

We hoped you enjoyed the contest!


We hope everyone's been enjoying their winter break because it's about to get better!

On January 4, we will be hosting DMOJ's own New Year's 2019 contest. Please see the contest page for details.

Anyone with a DMOJ account is welcome to participate, and anyone without one is welcome to register and participate.

See you soon, good luck, and Happy Holidays from all of the DMOJ crew!

LKP '18 Contest 2

george_chen, KevinWan posted on Dec. 26, 2018, 6:15 p.m. 0

Thanks for participating in the second LKP Programming Contest!

The winners are:

  1. fjzzq2002 (perfect score)
  2. Deemo (perfect score)
  3. SourSpinach
  4. kyleliu11111
  5. SamZhangQingChuan

We hope you enjoyed the contest!


On Friday, December 28th, we'll be hosting the second LKP Programming Contest!

Anyone with a DMOJ account is welcome to participate, and anyone without one is welcome to register and participate.

Contestants may participate in any 3-hour window between 12:00 EST of Dec. 28th and 12:00 EST of Dec. 31th. Please see the contest page for more details.

See you soon!

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