ICPCNews's blog

By ICPCNews, 2 months ago, In English

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Hello!

We are pleased to announce the completion of the ICPC 2022 Online Challenge powered by HUAWEI and announce the results of the competition.

Thank you very much for your interest in the competition. It was exciting for us to follow the results. It's nice that many participants immersed themselves in the proposed tasks and scored high points.

We hope you enjoyed the challenges. Huawei employees have been working on their preparation for a long time.

We remind all winners that you must have an account at https://icpc.global/ in order to receive a prize. The email for this account must exactly match the one used in your Codeforces account. Please verify that this is indeed the case. The deadline is October 14th.

We are happy to announce the winners.

Problem 1 Winners:

Problem 2 Winners:

Thanks again for your interest! We will be glad to see you in our future contests.

UPD: Thanks to the attentive contestants who pointed out that the preliminary results for the first problem were calculated without taking into account the weights of the problems. According to the announced final score rules, we have corrected the calculation method. Fortunately, the position of the participants has not changed much. We apologize to those whose prizes have changed for the worse. We are happy to deliver you the prizes according to your preliminary results as an additional incentive. This applies to participants qqqqq333, SadTroll and TLE_Automaton. Your spirit in exploration GP1 limitation is admirable to everyone. Please, also make sure that you have an account on https://icpc.global/ and that its email completely matches your email on Codeforces.

 
 
 
 
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2 months ago, # |
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My emails do not match. What do I do?

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    2 months ago, # ^ |
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    I believe you could change email in one of them or both to make them match.

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      2 months ago, # ^ |
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      It would be very convenient if there was another way, not involving changing my personal information in any of the accounts

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2 months ago, # |
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First of all, thanks for organizing the challenge! It can be seen that a lot of thought and effort was put into creating the problems. At the same time, I must say that some technical details around the format (rules, test cases, feedback) were not thought through well enough. There are some comments (1 2 3 4) from high scoring participants suggesting the same. I believe these comments have already been noticed. Still, I will suggest some ideas that could improve the situation for the upcoming editions of ICPC Challenge.

If the test cases are fixed during the contest and detailed enough feedback is provided for each submission (which was the case for Problem 2 this year), then make it clear that over-fitting for these particular test cases is allowed and expected. The most direct way would be to provide the test number in the input. The only other option, in my opinion, is minimal feedback (perhaps only the total score, without time and memory information) and strict limit for the number (or frequency) of submissions.

If the final test cases are going to be different from the preliminary ones (as for Problem 1 this year), then execute the submissions on all test cases (i.e. both preliminary and final) during the contest and provide the participant with a single bit of information about the final test cases ― whether the solution succeeded on all of them (i.e. there are no TLE, RE, etc). Obviously, even this single bit of information can be abused, so perhaps a strict limit for the number (or frequency) of submissions is necessary in this case as well.

Some kind of token system might be better than a constant limit for the number or frequency of submissions. For example, a participant starts with $$$N$$$ tokens and receives an additional token every $$$T$$$ hours. One token should be spent to submit a solution, or, alternatively, to request some additional feedback about the submission.

PS The main purpose of this comment is to bring attention to some issues of this year's edition and to show that some improvements are possible. Surely, the specific examples above are not the only options and I am sure that it is possible to come up with an approach that will improve the situation from both organizers and participants points of view.

PPS Please excuse me for such a negative looking comment. I did enjoy the problems, so thanks again for organizing the challenge and thanks for the great problems!

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2 months ago, # |
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Has anyone received the prize collection instructions yet?

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7 weeks ago, # |
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Hello organizers, about when we get information about prize delivery.. It seems to me that it is not started yet.. or am I missed something..