codern_org's blog

By codern_org, 13 months ago, In English
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💻 Are you ready to test your problem-solving skills and push your limits in the world of algorithms and data processing? The Technology Olympics 2025 brings you two exciting competitions where creativity, logic, and technical mastery meet high-level challenges—and top teams win prizes!

🎈 Algorithm Track

  • Preliminary Round (Online): Thursday, September 25, 2025
  • Final Round (Onsite – Tehran, Iran): Thursday, October 30, 2025
  • Closing Ceremony: Friday, October 31, 2025

📊 Data Processing Track

  • Preliminary Round (Online – 24 Hours): September 26–27, 2025
  • Final Round (Onsite – Tehran, Iran): Thursday, October 30, 2025
  • Closing Ceremony: Friday, October 31, 2025

🏆 Prizes for Each Track

Top 5 Teams in Preliminary Round:

  • Qualification for the Final Round
  • Travel expenses up to $200 per person
  • Hotel accommodation, local transportation, and meals in Tehran covered

Cash prizes:

  • 🥇 1st: $600
  • 🥈 2nd: $450
  • 🥉 3rd: $300
  • 🏅 4th: $250
  • 🏅 5th: $200

Prizes for Teams Ranked 5th to 10th:

  • Qualification for the onsite final round

Hotel accommodation, local transportation in Tehran, and meals have now been added to the prizes for the first-ranking participant from each country not in ranks 1–5!

Final Round: Total of $1,000 awarded to the top 3 teams!

Special Rule: At least one team from Iraq or Oman is guaranteed a spot in the Top 5.

Register Contest!

🎯 Why Join?

Get access to introductory training & sample problems starting July 24, 2025. Compete against top talents and gain valuable experience in algorithms or data processing. Win cash prizes and have your travel & stay covered for the final round!

🚀 Ready to Compete?

To learn more, you can watch the video of last year’s event:

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12 months ago, hide # |
 
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Does one have to be +18 to attend?

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12 months ago, hide # |
 
Vote: I like it +18 Vote: I do not like it

what is the reason for that iraq-oman preference?

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    12 months ago, hide # ^ |
     
    Vote: I like it +3 Vote: I do not like it

    The reason Iraq and Omran have a dedicated rank is that we have official partners in those countries who are actively helping with organizing the contest. As part of this collaboration, one rank is reserved for participants from those countries.

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12 months ago, hide # |
 
Vote: I like it 0 Vote: I do not like it

there is also a contest with the same name on quera.org

are they the same?

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    12 months ago, hide # ^ |
     
    Vote: I like it +1 Vote: I do not like it

    The contest on Quera.org and the one on Codern are connected but not exactly the same. The final round is shared between both, but the qualification process is different. In the Codern version, only non-Iranian contestants can qualify for the final round, while in the Quera version, it is specifically for Iranian participants to qualify and join the same final.

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12 months ago, hide # |
 
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Wats the difference between the algorithm and Data processing track ?

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    12 months ago, hide # ^ |
     
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    It seems, the former is related to competitive programming and the latter to machine learning.

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12 months ago, hide # |
 
Vote: I like it +2 Vote: I do not like it

For the data processing track, on the site, it says teams of two, but in the QA at the bottom, it says it is an individual contest. Which version is correct?

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12 months ago, hide # |
 
Vote: I like it 0 Vote: I do not like it

Is this competition the same as the competition held in Quera?

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12 months ago, hide # |
 
Vote: I like it +3 Vote: I do not like it

Hi, anyone looking for a teammate? Sorry if I cant ask like this

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12 months ago, hide # |
 
Vote: I like it +1 Vote: I do not like it

Can participants from Russia join in?

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12 months ago, hide # |
 
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If one person registered with teamname and other teammate's code, then is there no need for the second person to register? Cause the register button is disabled after my teammate registered.

And when me and my teammate tries to edit my profil, the site crashes, is it normal?

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    12 months ago, hide # ^ |
     
    Vote: I like it +9 Vote: I do not like it

    The registration flow has recently changed. Please try registering again, and if you still face any issues (like the disabled button or the profile crash), let me know so I can help resolve it.

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      12 months ago, hide # ^ |
       
      Vote: I like it 0 Vote: I do not like it

      Now edit profile works and I am registered. But I can't find South Korea(Republic of Korea) at the country list

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12 months ago, hide # |
 
Vote: I like it 0 Vote: I do not like it

I can't send question for the problem cause I need to fill the body section, but I can't type anything on body section(I can edit only title section). So I'll write the question for Learning competition's problem — phone number here.

Why is +989123456789 correct? It has 12 digits. 091234567891 also has 12 digits but the problem says this has extra digit.

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    12 months ago, hide # ^ |
    Rev. 2  
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    And aren't there any input limits on actual contest too?

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    12 months ago, hide # ^ |
     
    Vote: I like it +6 Vote: I do not like it

    +989123456789 is valid because the +98 prefix plus 9 digits = 12 characters.

    091234567891 is invalid because 09 prefix plus 10 digits = 12 characters, too long.

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      12 months ago, hide # ^ |
      Rev. 2  
      Vote: I like it 0 Vote: I do not like it

      The problem says "A number is considered valid if it belongs to one of Categories 1–3 and has exactly 11 digits."

      and why +989123456789 valid? I think that is 13 characters and has 12 digits which is not exactly 11 digits.

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        12 months ago, hide # ^ |
         
        Vote: I like it 0 Vote: I do not like it

        You are right — the question means that a phone number without the country code must be 11 digits. But this is confusing, so we will update the question to make it clearer.

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    12 months ago, hide # ^ |
     
    Vote: I like it 0 Vote: I do not like it

    I sent this as a clarification request 4 days ago but didn't receive a response yet. (Same for a clarification I sent for the other problem)

    Hopefully this won't be the case during the contest.

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12 months ago, hide # |
 
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can I participate individually or there must be atleast 2 people?

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    12 months ago, hide # ^ |
     
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    It’s better to have a teammate for the onsite contest — they can support you and be by your side.Individual is OK.

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12 months ago, hide # |
 
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I get the "You are being rate limited" message 9 out of 10 times I try to visit the site.