dmoj.ca

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• name: keywords content: DMOJ,Canadian,online judge,programming,code,contest,CCC,CCC Solutions,CCC 2015,CCO,IOI,JOI,COCI,DMOPC,Canada,Ontario,Toronto,grade,interactive
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• property: og:site_name content: DMOJ: Modern Online Judge
• property: og:url content: https://dmoj.ca/
• name: description content: Practice problem solving and compete against others on the DMOJ, a modern contest platform and archive of programming problems.

• http://dmoj.ca/javascript:void(0)
• 1
• Задачи
• Посылки
• Пользователи
• Соревнования
• О нас
• Статус
• Подсказки
• API
• http://dmoj.ca/accounts/login/?next=/
• http://dmoj.ca/accounts/register/
• open source
• register
• Hello, World!
• http://dmoj.ca/#
• IOI '25 Day 1 and Day 2 Problems Posted
• maxcruickshanks
• X_Ray
• http://dmoj.ca/post/290-ioi-25-day-1-and-day-2-problems-posted#comments
• here
• day 1
• day 2
• skittles1412
• littlecat
• Rating System Update
• xiaowuc1
• d
• Kirito
• http://dmoj.ca/post/287-rating-system-update#comments
• On the Usage of AI in Contests
• Riolku
• http://dmoj.ca/post/280-on-the-usage-of-ai-in-contests#comments
• CCO '25 and CIW '25 Problems Posted
• BalintR
• http://dmoj.ca/post/289-cco-25-problems-posted#comments
• here
• here
• CCO day 1
• CCO day 2
• CIW day 1
• CIW day 2
• AustinJiang
• OTHS Coding Competition 4
• Ivan_Li
• Humanthe2nd
• http://dmoj.ca/post/288-oths-coding-competition-4#comments
• contest page
• April Fools' Day Contest 2
• wdotmathree
• kevlu8
• sugo
• http://dmoj.ca/post/286-april-fools-day-contest-2#comments
• contest page
• Arcadia Computing Contest 2
• http://dmoj.ca/post/283-arcadia-computing-contest-2#comments
• contest page
• Dilhan's Computing Contest 1
• dnialh_
• http://dmoj.ca/post/285-dilhans-computing-contest-1#comments
• contest page
• OTHS Coding Competition 3 (Mock CCC)
• http://dmoj.ca/post/284-oths-coding-competition-3#comments
• contest page
• Dr. Anne Anderson Coding Contest
• http://dmoj.ca/post/282-dr-anne-anderson-coding-contest#comments
• contest page
• »
• 3
• 4
• 5
• 6
• 26
• 27
• Waterloo 2025 Fall Local Unofficial Mirror
• tacos
• CCC '19 J3 - Cold Compress
• WC '15 Contest 1 J3 - Jazz Concert
• super1022
• CCC '17 J3 - Exactly Electrical
• jacobwang
• CCC '08 S1 - It's Cold Here!
• jonathanzheng4
• April Fools' Day Contest 2 P6 - LLM or not? (Hard)
• CCC '08 J3 - GPS Text Entry
• 41vin
• BlueBook - Power Base
• BlueBook - Power Base
• Hamburger67123
• Hello, World!
• Roboninja303
• BlueBook - Power Base
• http://dmoj.ca/feed/comment/rss/
• Atom
• Waterloo 2025 Fall A - Planting Trees
• Waterloo 2025 Fall B - Palindromic Triplets
• Waterloo 2025 Fall C - Magic Matrix
• Waterloo 2025 Fall D - The Worm in the Apple
• Waterloo 2025 Fall E - Efficient Room Scheduling
• Amplitude Hackathon Summer '25 Problem 5 - Nico the Skydiver
• IOI '25 P6 - Obstacles
• http://dmoj.ca/feed/problems/rss/
• Atom
• fork us on
• like us on
• help us
• terms of service

• Github
• here
• the implementation on GitHub
• the original Elo-MMR paper
• this brief discussion with the Elo-MMR creator regarding how to handle contests with rating ceilings
• issue tracker on GitHub
• here
• https://discordapp.com/invite/EgJVpxz
• onion
• v3

            Domain Name: DMOJ.CA
Registrar: Grape Inc.
Domain Status: client transfer prohibited
Domain Status: client update prohibited
Creation Date: 2014-11-06T02:17:56Z
Registry Expiry Date: 2028-11-06T02:17:56Z
Updated Date: 2025-09-07T16:31:26Z
Name Server: TARA.NS.CLOUDFLARE.COM
Name Server: TERIN.NS.CLOUDFLARE.COM
REGISTRAR Contact: Grape Inc.
>>> Last update of RDAP database: 2026-08-08T00:53:06Z         

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