vanwij's blog

Invitation to TLX Regular Open Contest #31
By vanwij, history, 15 months ago, In English

Hello Codeforces!

We are excited to invite you to TLX Regular Open Contest #31!

Key details:

Many thanks to:

  • Pyqe and steven.novaryo for their help in coordinating the round and in preparing the problem components.
  • AMnu and joelgun14 for testing the contest.
  • fushar🔥 for the amazing TLX platform.

Please register to the contest and we hope you will enjoy TROC #31!

UPD: Added scoring distribution.

Congratulations to the top 5:

  1. jiangly

  2. maroonrk

  3. heno239

  4. hos.lyric

  5. hitonanode

Congratulations to our first solvers:

You can upsolve the problem here. Editorial is available in the upsolve link!

Thank you for participating and see you on the next contest!

  • Vote: I like it
  • +182
  • Vote: I do not like it

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15 months ago, # |
  Vote: I like it +29 Vote: I do not like it

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

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14 months ago, # |
  Vote: I like it +61 Vote: I do not like it

Where is the emoji spam? 🥺🥺🥺

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14 months ago, # |
  Vote: I like it +32 Vote: I do not like it

Finally another TROC!!! :D

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14 months ago, # |
  Vote: I like it +29 Vote: I do not like it

very cool <3

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14 months ago, # |
  Vote: I like it +23 Vote: I do not like it

My First Contest! Very Excited to see cool problems :3

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14 months ago, # |
  Vote: I like it +26 Vote: I do not like it

🔥 🔥 🔥

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14 months ago, # |
  Vote: I like it +24 Vote: I do not like it

Bump! The contest will start in 2 hours! 😱😱😱

As one of the writers, I hope everyone will enjoy the contest and have a good time :D

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14 months ago, # |
  Vote: I like it +50 Vote: I do not like it

The contest will start in 30 minutes :D

Do not forget to join the contest <3

Fun fact: the authors are the Indonesia IOI 2022 Team 🔥🔥🔥😱😱😱😱💯💯

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14 months ago, # |
  Vote: I like it +26 Vote: I do not like it

I did not expect everyone is using FFT in problem G. 😂

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14 months ago, # |
  Vote: I like it +26 Vote: I do not like it

Using set (instead of multiset) in D cost me 10 submissions. (╥_╥)

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14 months ago, # |
← Rev. 2   Vote: I like it +46 Vote: I do not like it

I think the constraints are wrong in G.

https://tlx.toki.id/problems/troc-31/G/submissions/1315024 this solution gives TLE.

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    14 months ago, # ^ |
      Vote: I like it +26 Vote: I do not like it

    Unfortunately, the constraints are indeed wrong. We changed the constraints when making the tests but forgot to change the constraints in the problem statement. It should be:

    • $$$1\leq N\leq 100\,000$$$
    • $$$0\leq S\leq 2^{17}-1$$$
    • $$$-1\leq A_i\leq 2^{17}-1$$$

    We are very sorry for the major inconvenience.

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