kevinsogo's blog

Invitation to join the NOI.PH 2020 Final Round Mirrors at the Codeforces Gym!
By kevinsogo, history, 4 years ago, In English

Links to the mirrors! day 1, day 2 (Please register at the gym)

Hello Codeforces!

I'd like to invite you to the mirrors of the 2020 final rounds of the National Olympiad in Informatics – Philippines. The mirrors will be held in the Codeforces gym. The NOI.PH is the Philippines' qualifier for the IOI.

Contest format:

  • There are 2 contest days.
  • There are 5 problems over 5 hours, per day.
  • The problems will have subtasks. The maximum score for each problem will be 100 points.
  • Some problems may have special scoring rules which will be indicated in the statement.
  • The submission that achieves the maximum score is counted towards the final ranking.
  • The problems range from easy to hard. We also tried to cover a diverse set of topics.
  • Editorials will be released after the mirror contests end.
  • Day 1 mirror: August 15, 2020 4pm UTC+8 (8am UTC) to 9pm UTC+8 (1pm UTC)
  • Day 2 mirror: August 16, 2020 4pm UTC+8 (8am UTC) to 9pm UTC+8 (1pm UTC)

Acknowledgments: The problem setters were 1NCID3R, andrewting, cjquines, guissmo, Shisuko, timd, verngutz and myself (kevinsogo). Thanks to jddantes, jvafable, TheLostCookie, Marte for testing. Lastly, thanks to MikeMirzayanov for Codeforces and Polygon.

Have fun!

Edit: The registration is now open for Day 1!

To those planning to participate, please ensure that you have installed Java JDK version at least 8. Knowing how to program in Java is not needed, but some tasks will ask you to run Java programs.

Edit: The editorials have been released.

Enjoy!

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4 years ago, # |
  Vote: I like it +19 Vote: I do not like it

The registration is now open for Day 1.

To those planning to participate, please ensure that you have installed Java JDK version at least 8. Knowing how to program in Java is not needed, but some tasks will ask you to run Java programs.

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4 years ago, # |
  Vote: I like it +8 Vote: I do not like it

Is this contest good for experts or too hard?

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    4 years ago, # ^ |
      Vote: I like it +3 Vote: I do not like it

    Because of the system where there are subtasks which give partial points, I think there are always going to be approachable tasks for participants of different skill levels.

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4 years ago, # |
  Vote: I like it +15 Vote: I do not like it

The day 1 mirror has started. Good luck and have fun!

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4 years ago, # |
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What's the secret sauce in the game :thinking:

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    4 years ago, # ^ |
      Vote: I like it +6 Vote: I do not like it

    It's "Sauce Mario Sep" (without quotes). Enjoy!

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4 years ago, # |
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Were the mp3 statement and the game of problem A also in the official contest?

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    4 years ago, # ^ |
      Vote: I like it +22 Vote: I do not like it

    Yes, 'cause that's just how we roll. :)

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    4 years ago, # ^ |
    ← Rev. 2   Vote: I like it +8 Vote: I do not like it

    it was really fun making that statement. we hope you liked it !!!

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      4 years ago, # ^ |
        Vote: I like it 0 Vote: I do not like it

      The Java application was pretty cool too! For the Java application, I don't see a control to specify that the given input has no solution. Is it guaranteed that all levels generated for the game do have a solution?

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        4 years ago, # ^ |
          Vote: I like it 0 Vote: I do not like it

        Most levels generated by the application didn't have a solution. I assume they are randomly generated.

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        4 years ago, # ^ |
          Vote: I like it 0 Vote: I do not like it 
        The Java application was pretty cool

        except the background music

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4 years ago, # |
  Vote: I like it +8 Vote: I do not like it

Less than one hour left until the Day 2 mirror starts. Good luck and have fun!

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4 years ago, # |
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What is the intended solution for Day 2: Problem A (Functional Alchemy)?

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    4 years ago, # ^ |
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    Spoiler
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4 years ago, # |
  Vote: I like it 0 Vote: I do not like it

Auto comment: topic has been updated by kevinsogo (previous revision, new revision, compare).

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