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An Animal Contest 7

WilliamWu277, andrewtam, julian33, dxke02 posted on Sept. 2, 2022, 7:09 p.m. 0

Hello everyone!

From Saturday, September 3rd to Monday, September 5th, we'll be hosting An Animal Contest 7. Participants will have a 3-hour window to complete 6 problems centred around squirrels!

Note that An Animal Contest 7 is rated for all participants with less than 2600 rating.

For more details, please see the contest page.

We hope you enjoy the problems and have fun!

See you soon!

Yet Another Contest 4

Josh, Nils_Emmenegger, RandomLB posted on Aug. 2, 2022, 1:15 a.m. 0

YAC Banner

Hi everyone!

This is yet another announcement that it is yet another time for yet another Yet Another Contest!

The contest will run from Friday, August 5th to Monday, August 8th. Participants will have a 3-hour window to complete 6 problems.

Note that the contest is not rated for users with at least 2800 rating. This differs from previous YACs.

For more details, please see the contest page.

Good luck and have fun!

A Math Contest

d, Plasmatic, Josh, TechnobladeNeverDies, Joelfu, BalintR, Lost, Tommy_Shan, LogicXD posted on July 13, 2022, 4:00 a.m. 0

AMC Banner

Hello everyone!

The fundamental theorem of math states that math is difficult. To make some math topics more approachable, we've decided to create a contest to help you brush up on your skills!

We will be hosting A Math Contest from Tuesday, July 12th, to Tuesday, July 26th. You will have 15 days to solve 17 problems of roughly increasing difficulty.

This contest will be unrated.

For more details, please see the contest page.

Good luck and have fun!

Another Random Contest 1

HenryYi, andy_zhu23 posted on June 27, 2022, 11:08 p.m. 0
ARC Banner

Hello everyone!

To keep everyone's summer break busy, here comes Another Random Contest!

This contest will be unrated.

The contest will run from Wednesday, June 29th to Saturday, July 2nd. Participants will have a 3-hour window to complete 6 problems.

For more details, please see the contest page.

Good luck and have fun!

DMOPC '21 June Contest

zhouzixiang2004, Riolku, 4fecta posted on June 22, 2022, 7:57 p.m. 0

We hope you enjoyed the last contest of the DMOPC 2021-2022 season! As usual, special congrats to the top 5 contestants:

  1. Gennady (perfect score!)
  2. ecnerwal (perfect score!)
  3. ksun48
  4. noimi
  5. xiaowuc1

See you in September!


We made it! We are excited to announce that the 10th and final DMOPC of the school year will be held this coming weekend!

The contest will run from Friday, June 24th to Monday, June 27th (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 June 24th and 00:00:00 EDT of June 28th.

Please see the contest page for more details.

Good luck!!

Bloor CI Programming Contest 1

squishybanana04, BalintR posted on June 17, 2022, 4:49 a.m. 0
BPC Banner

Hello everyone!

We will be hosting the first-ever Bloor C.I. Programming Contest from Saturday, June 18th to Tuesday, June 21st. The contest will have a junior and a senior division.

The junior contest will be unrated and the senior contest will be rated for all participants.

You can find more details at the contest page for the junior contest and the contest page for the senior contest.

Good luck and have fun!

Cheerio Contest 1

EdwinSun, InkJoy, LeviDanjio, rickyqin005, ShawnChen4 posted on June 6, 2022, 2:13 a.m. 0

Hello fellow programmers!

On Thursday, June 9th, from 3:30 pm to 12:00 am (Eastern Daylight Time), we'll be hosting the first-ever Cheerio Contest! The contest will be split into a junior division (for those new to programming) and a senior division (for experienced programmers). Both divisions will be unrated.

The junior contest page can be found here.

The senior contest page can be found here.

We hope to see you soon!

Richmond Hill High School CS Club

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Yet Another Contest 3

Josh, Nils_Emmenegger, RandomLB posted on May 22, 2022, 3:35 a.m. 1

YAC Banner

Hi everyone!

It's yet another time for yet another Yet Another Contest!

The contest will run from Friday, May 27th to Monday, May 30th. Participants will have a 3-hour window to complete 5 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!

Spring Coding Bowl 2022

ArtyKing12, qwertytown4life, moayyadshahid1, Dwin2020, shayaf84 posted on May 21, 2022, 2:52 a.m. 1

Hi everyone,

We are proud to present the third annual Spring Coding Bowl, a 3-hour, 5-problem competition open to all high school students. The contest will run from 12:00am on Saturday, May 28 to 11:59pm on Wednesday, June 1 (Eastern Daylight Time).

To register, please follow the instructions on our official contest webpage. The contest will be hosted here on DMOJ, and you will have to submit your personal information when joining this organization. Please ensure that you register before 6:00pm May 27.

An official honour roll will be published on the contest page, the top scorers will be named as "Coders of the Year", and schools will be ranked by the sum of the three highest scores from each school. As such, please be sure to tell other students in your school to participate (perhaps get your school's coding club involved)!

If you would like to prepare, you can try to solve last year's problems here on DMOJ.

Good luck to all participants!

UCC Coding and Algorithms Academy.

SAC Code Challenge 5 2022

maxcruickshanks posted on May 18, 2022, 10:27 p.m. 0

Thanks for participating in the final SAC Code Challenge!

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

  1. ecnerwal
  2. xiaowuc1 (the third time they have placed in the top 5 for this series!)
  3. y0105w49 (the second time they have placed in the top 5 for this series!)
  4. ksun48
  5. TechnobladeNeverDies (the second time they placed in the top 5 for this series!)

The top 5 contestants from the junior contest are

  1. xiaowuc1 (the third time they have placed in the top 5 for this series!)
  2. BalintR (the second time they have placed in the top 5 for this series!)
  3. mangoqwq
  4. ecnerwal
  5. ksun48

Thank you for a great year! Be well.


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

On Friday, May 20th, 2022, we'll be running the fifth and final SAC Code Challenge for this year!

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 May 20th, 00:00 EDT, and May 23rd, 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.

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Comment stream Discord

  • htoshiro → Point System Rework
  • Kirito → Point System Rework
  • Adham → Point System Rework
  • BalintR → Riolku's Mock CCC S4 - Clumsy Cindy
  • 770427 → Riolku's Mock CCC S4 - Clumsy Cindy
  • dnialh_ → Mock CCO '18 Contest 3 Problem 4 - Roger Solves A Classic Rage Tree Problem
  • 9o → Mock CCO '18 Contest 3 Problem 4 - Roger Solves A Classic Rage Tree Problem
  • Xyene → Mock CCO '18 Contest 3 Problem 4 - Roger Solves A Classic Rage Tree Problem
  • 9o → Mock CCO '18 Contest 3 Problem 4 - Roger Solves A Classic Rage Tree Problem
  • Kirito → CCC '05 S5 - Pinball Ranking
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New problems

  • IOI '23 P6 - Robot Contest
  • IOI '23 P5 - Overtaking
  • IOI '23 P4 - Beech Tree
  • IOI '23 P1 - Closing Time
  • IOI '23 P2 - Longest Trip
  • IOI '23 P3 - Soccer Stadium
  • Yet Another Contest 7 P1 - Page Turning
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