Round B starts in less than 24 hours (on April 18th at 23:00 UTC).

Join our online coding competition and tackle fun problems designed by Google engineers! ➡️g.co/kickstart

Looking for a way to stay connected, try something new, and have a little fun? The Kick Start 2021 season has begun!

Kick Start offers programmers of all skill levels the opportunity to boost your skills through a series of intriguing algorithmic and mathematical problems designed by Google engineers. Each round starts fresh, so give any one of our 2021 online rounds a try — or join them all!

Join

• Create a Coding Competitions profile and then register for Kick Start.
• Check out the full schedule and add rounds to your calendar so you'll never miss out.

Prepare

• View our tutorial video to learn more about the competition platform and some useful tips and tricks.
• Practice makes progress! Try your hand at past problems and read through our FAQ if you have a question.

Connect

Be part of the #KickStart community by joining our Facebook Group to meet other participants, chat about past problems, and hear about the latest updates!

Questions? Reach out to [email protected].

We hope you’ll join us for some fun practice. What are you waiting for?

The last round of Google Kick Start 2020 will take place this Sunday (November 15) at 3:00 UTC and will last 3 hours. Make sure you participate!

See you at g.co/kickstart.

UPD: Thank you for participating! Analysis can be found in the problem view. See you next year!

Round G of Google Kick Start 2020 will start this Sunday (October 18) at 12:00 UTC and will last 3 hours.

See you at g.co/kickstart.

As in previous years, the list of all the great people who will compete in the most prestigious competition for high school students can be found here: https://kostka.dev/ioi/20/.

If you want to add new participants, please use this form: https://forms.gle/mzzku4dcQXqSD4um8.

If you want to report any mistakes or problems, please either fill the form above with correct data or add a comment under this post.

Don't miss Google Code Jam 2020 World Finals!

The competition starts today (2020-08-08) at 13:00 UTC and lasts 4 hours.

• Hub: https://goo.gle/cjlivestream
• Finalists: https://codingcompetitionsonair.withgoogle.com/events/code-jam-2020-world-finals/speakers
• Scoreboard: https://codingcompetitions.withgoogle.com/codejam/round/000000000019ff31

This is just to remind you that the second round of this year's Code Jam will take place today (5/16) at 14:00 UTC.

1,000 highest-ranked contestants advance to the third round and you will receive the famous Code Jam tee if you are within these 1,000 contestants.

https://g.co/codejam

Good luck, have fun!

...on being the first team in the history of ICPC that will hold the World Champions title for three consecutive years!

Let me just copy the message from Bill Poucher:

March 31, 2020

RE: Status of the ICPC 2020 World Finals hosted by MIPT in Moscow.

Important Announcements:

The ICPC is rescheduling the ICPC 2020 World Finals Championship. We are targeting future dates that should not require rescheduling, well after international travel is restored.

Coming this June, the ICPC plans to kick off “ICPC 2020 World Finals Week” with some online activities and events. Details will follow shortly.

An update will be published on or before April 15, 2020.

Students have worked for years for the opportunity to compete together. Year after year, the ICPC sets the mark and these students raise the bar of excellence well above the mark. The mark set for the ICPC this year is for academia, industry, and community to deliver a great personal experience for these World Finalists who have been selected from 59,000 students from over 3,855 universities that span the globe.

We are committed to “put people first, with students first among people.” With the goodwill and the good graces of academia, industry, and global community leadership, we will get it done. We look forward to visiting with you online and person-to-person, even if the ICPC 2020 World Finals competition is ultimately scheduled in 2021. We look forward to meeting you in the near future.

Best,

Bill

Dr. William B. Poucher, Ph.D.

President, ICPC Foundation

[email protected]

Professor of Computer Science,

Baylor University

[email protected]

Can someone fix the calendar? Such duplicates appear since I remember.

Does anyone know if the host for EJOI 2020 has been found?

UPD: https://codeforces.me/blog/entry/71598?#comment-560701

UPD2: http://ejoi2020.ge/

You've got only one more chance to participate in Google Kick Start 2019, so don't miss it!

Round H will start this Sunday (November 17) at 05:00 UTC and will last 3 hours.

Get ready and register now at g.co/kickstart.

.

Round G of Google Kick Start 2019 will start this Saturday (October 19) at 13:30UTC.

Get ready and register now at g.co/kickstart.

.

Hey Codeforces community,

have you ever seen any problems that use Wavelet Tree/Matrix or can be solved using these data structures?

Problems created especially for these structures don't count (for example they should appear in some competition).

I haven't seen any post, so let me announce that the Round E of Google Kick Start 2019 is happening this Sunday (August 25) at 5:00UTC. Get ready and register now at g.co/kickstart.

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During the downtime I realized that there's no other place to chat about sports programming and that's quite bad.

I also want to confess that I'm probably addicted to Codeforces.

I noticed that in recent years, a lot of "pass any coding interview"-ads started appearing out of nowhere (or maybe I live under a rock). On the other hand, I worked in many places and talk to many people and no one ever mentioned participating in such courses/bootcamps before. Therefore, I would like to ask if you know any successful stories, where a person went to some programming bootcamp without any prior experience and then started working in some well-known IT company?

What is this? Some kind of a cipher? A hint for the upcoming round? Is Mike trying to communicate something to us?

We probably all noticed that the rating inflation still occurs [citation needed].

In several games, there's a thing called "rating decay", when your rating decreases when you don't play ranked games (in our world: if you don't participate in contests). Please compare:

• https://heroesofthestorm.com/en-gb/blog/21771817/
• https://overwatch.fandom.com/wiki/Competitive_Play
• https://liquipedia.net/starcraft2/Battle.net_Leagues#Decay_and_Persistence

What do you think about implementing such a solution to the Codeforces rating? It should slowly drain some of the unnecessary rating (especially from people who do not participate anymore). Similar to many sources above, I think it should affect only highly rated users (maybe with 2100+ rating?). It can also serve as an encouragement to participate in contests more often.

Hey Codeforces,

summer is coming, so can we try to compile a list of participants of the IOI 2019?

The list can be found here: http://weaselcrow.com/pro/cf/ioi/19/

How to add or update data? Please fill the following form: https://forms.gle/ttDuP3SR7b8pqhxU6

Please note that the data is moderated, so it might take some time for your input to be visible.

Last year's post can be found here: https://codeforces.me/blog/entry/58939

If you didn't participate today in Codeforces, Atcoder, Codechef, and TopCoder rounds, can you even call yourself a real competitive programmer?

It's almost here! KickStart rounds kick off this Sunday, March 24 with Round A at 4:00UTC. Get ready and register now at g.co/kickstart.

.

The wait is over! Join us in our sweet sixteenth year for another CodeJam season of coding excellence. Register now at g.co/codejam.

Interested in growing your coding skills?

Kick start is a global coding competition offering programmers of all skill levels the chance to develop and hone their programming skills. Participate in one of our eight online rounds — or join them all!

Here’s how to join us

Register today!

Register before our upcoming practice round on February 23rd then check out the full schedule and add rounds to your calendar so you don’t miss out!

Practice makes perfect.

Get ready for an upcoming round by trying your hand past problems. Also check out our updated FAQ as we’ve made some changes that we think you're going to like!

Join the conversation.

Join our Facebook Group to connect with other participants, chat about problems post-round, and be a part of our community.

What are you waiting for?

Questions? Reach out to [email protected].

Today the Central European Regional Contest took place in Prague, Czechia.

And are you serious? One of the hardest regionals and:

• there were two breaks when we couldn't touch computers (one lasting about half an hour),
• contest lasted over 6 hours,
• they changed the duration of the contest several times (in particular the end changed from 3:50pm to 3:30pm),
• the workstations were so slow that our programs compiled sometimes over 5 minutes, with an average somewhere near one minute,
• some teams had to reboot the workstations several times.

I have been to several contests before and I understand that organizing such contest might be hard, but I really think that this contest crossed several lines. One of the most traumatic experiences in my life.