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Yet Another Contest 2

Josh, Nils_Emmenegger, RandomLB posted on March 28, 2022, 2:54 p.m. 0

YAC Banner

Hi everyone!

It's time for yet another Yet Another Contest!

The contest will run from Friday, April 1st to Monday, April 4th. Participants will have a 3-hour window to complete 6 problems.

Note that the contest is not rated for users with at least 2600 rating.

For more details, please see the contest page.

Good luck and have fun!

DMOPC '21 March Contest

zhouzixiang2004, Riolku, 4fecta posted on March 20, 2022, 5:29 p.m. 0

We hope you found the problems this time both interesting and challenging! Once again, special congrats to the top 5 contestants:

  1. Gennady
  2. wygzgyw
  3. Mr_Eight
  4. yuyue
  5. ksun48

We'll be back soon next month!


Another installment of everyone's favourite contest series is on its way...

The contest will run from Friday, March 25th to Monday, March 28th (inclusive of both days).

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 00:00:00 EDT of March 25th and 00:00:00 EDT of March 29th. Please see the contest page for more details.

Good luck and have fun!

An Animal Contest 6

Riolku, hewmatt10, WilliamWu277, andrewtam, julian33, Nils_Emmenegger, sjay05, ThingExplainer, dxke02, rickyqin005, danielz1000 posted on March 17, 2022, 9:51 p.m. 0

Hi everyone!

From Friday, March 18th to Monday, March 21st, we'll be hosting An Animal Contest 6. Participants will have a 3-hour window to complete 6 problems centred around grizzly bears! See the contest page for more details.

Note that AAC6 is rated for all participants.

We hope you enjoy the problems and have fun!

See you soon!

SAC Code Challenge 4 2022

maxcruickshanks posted on March 8, 2022, 4:52 p.m. 0

Thanks for participating!

The top 5 contestants from the main contest that win Discord Nitro are

  1. y0105w49
  2. Dormi
  3. Buckhorn
  4. Josh (the second time they have placed in the top 5 for this series!)
  5. TechnobladeNeverDies

The top 5 contestants from the junior contest are

  1. xiaowuc1 (the second time they have placed in the top 5 for this series!)
  2. y0105w49
  3. Josh (the second time they have placed in the top 5 for this series!)
  4. BalintR
  5. Dormi

We hope to see you again in May!


Hi, everyone again (once more for a second time)!

On Friday, March 11th, 2022, we'll be running the fourth SAC Code Challenge for this year!

Additionally, for the main contest, a prize pool will be introduced!

The top 5 competitors in the main contest will receive 1 month of Discord Nitro or 2 months of Discord Nitro Classic.

To redeem your prize after the contest, please join the DMOJ Discord and verify your account belongs to you; then, direct message maxcruickshanks.

You can write both contests since there is no overlap in problems.

For both of these contests, you can write them in any two-hour window between March 11th, 00:00 EST, and March 14th, 00:00 EDT.

You can find more details about the junior contest on its contest page and the main contest on its contest page.

We hope to see you soon!
SAC Code Culture.

Yet Another Contest 1

Josh, Nils_Emmenegger, RandomLB posted on Feb. 22, 2022, 6:48 p.m. 0
YAC Banner

Hi everyone!

We hope that after writing CCC, you're ready to write Yet Another Contest!

The contest will run from Friday, February 25th to Monday, February 28th. Participants will have a 3-hour window to complete 6 problems.

Note that the contest is not rated for users with at least 2600 rating.

For more details, please see the contest page.

Good luck and have fun!

DMOPC '21 February Contest

zhouzixiang2004, Riolku, 4fecta posted on Feb. 7, 2022, 1:56 a.m. 5

We hope this was good practice for the CCC! Special congrats to the top 5 contestants:

  1. Gennady (perfect score!)
  2. bruce (perfect score!)
  3. ecnerwal (perfect score!)
  4. wakaka (perfect score!)
  5. ksun48 (perfect score!)

See you next month!


The Canadian Computing Competition (CCC) is fast approaching! To prepare aspiring competitors one last time, we decided to make DMOPC this month CCC-themed!

The contest will run from Friday, Febrary 11th to Monday, February 14th (inclusive of both days).

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 00:00:00 EST of Febrary 11th and 00:00:00 EST of February 15th. Please see the contest page for more details.

As always, good luck and do your best!

SAC Code Challenge 3 2022

maxcruickshanks, NoOneofConsequence posted on Jan. 30, 2022, 8:03 p.m. 0

Thanks for participating!

The top 5 contestants from the main contest are

  1. xiaowuc1 (the second time they have placed in the top 5!)
  2. Josh
  3. skittles1412 (the third time they have placed in the top 5!)
  4. kevinyang (the second time they have placed in the top 5!)
  5. andrewtam

The top 5 contestants from the junior contest are

  1. xiaowuc1
  2. Josh
  3. NK
  4. skittles1412
  5. PunnyBunny

We hope to see you again in March!


Hi, everyone again (for a second time)!

On Friday, February 11th, 2022, we'll be running the third SAC Code Challenge for this year!

Additionally, a SAC Code Challenge Junior was created due to popular demand!

You can write both contests since there is no overlap in problems.

For both of these contests, you can write them in any two-hour window between February 11th, 00:00 EST, and February 14th, 00:00 EST.

The junior contest will have 5 problems with problem difficulty ranging from CCC Junior 1 to CCC Junior 5.

The main contest will have 5 problems with problem difficulty ranging from CCC Junior 1 to CCC Senior 4.

Like the most recent Code Challenges, there will be no registration requirements to participate.

You can find more details about the junior contest on its contest page and the main contest on its contest page.

We hope to see you soon!
SAC Code Culture.


An Animal Contest 5

Riolku, hewmatt10, WilliamWu277, andrewtam, julian33, Nils_Emmenegger, sjay05, ThingExplainer, dxke02, rickyqin005, danielz1000 posted on Jan. 21, 2022, 6:35 p.m. 3

Hi everyone!

From Saturday, January 22nd to Monday, January 24th, we'll be hosting An Animal Contest 5. Participants will have a 3-hour window to complete 6 problems centered around pandas! See the contest page for more details.

Note that AAC5 is not rated for users with at least 2400 rating.

We hope you enjoy the problems and have fun!

See you soon!

DMOPC '21 January Contest

zhouzixiang2004, Riolku, 4fecta posted on Jan. 11, 2022, 2:12 a.m. 3

We hope you enjoyed the contest! Special congrats to the top 5 contestants:

  1. Gennady (perfect score!)
  2. ecnerwal
  3. hitonanode
  4. wygzgyw
  5. TechnobladeNeverDies

We'll see you next month!


New year, new DMOPC! Start the year off with (what could be) a brand new colour!

The contest will run from Friday, January 14th to Monday, January 17th (inclusive of both days).

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 00:00:00 EST of January 14th and 00:00:00 EST of January 18th. Please see the contest page for more details.

As always, good luck and do your best!

BSSPC '21 Senior

sushi, noYou, azeng posted on Dec. 27, 2021, 1:57 a.m. 0

Hi, everyone!

At last, the senior contest is here!

From Monday, December 27th to Wednesday, December 29th we'll be hosting the Bayview Secondary School 2021 Senior Programming Contest!

Participants will have a 3-hour window to complete 5 problems. See the contest page for more details.

Note that the contest is not rated for users with at least 2600 rating.

Note: This contest overlaps with AAC. As AAC finishes before BSSPC, it will be rated first. This means that your rating after AAC is rated will determine your eligibility to be rated in BSSPC. If you have concerns or questions, please ask.

We hope you enjoy the problems and have fun!

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Ongoing contests

2023 Canadian Computing Olympiad - Day 1 Mirror
Ends in 11 days 03:24:37.
2023 Canadian Computing Olympiad - Day 2 Mirror
Ends in 11 days 03:24:37.

Comment stream Discord

  • Xyene → CCC '00 S1 - Slot Machines
  • lilfrankster101 → CCC '00 S1 - Slot Machines
  • Nyuu → Hello, World!
  • lilfrankster101 → COCI '18 Contest 4 #1 Elder
  • Xyene → A Times B
  • Nyuu → A Times B
  • maxcruickshanks → PIB '20 P6 - Rotational Top Trees
  • maxcruickshanks → Waterloo 2017 Winter B - Vera and LCS
  • spheniscine → CCC '00 S1 - Slot Machines
  • Josh → Max's Anger Contest Series 2
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New problems

  • CCO '23 P1 - Binaria
  • CCO '23 P2 - Real Mountains
  • CCO '23 P3 - Line Town
  • CCO '23 P4 - Flip it and Stick it
  • CCO '23 P5 - Travelling Trader
  • CCO '23 P6 - Triangle Collection
  • Waterloo 2016 Fall D - Treasure Hunt
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