Hello Codeforces! 
We are excited to invite you to TLX Regular Open Contest #31!
Key details:
- Contest URL: TLX
- Time: 11th February 2023, 14:05 UTC
- Writer: Drew_, HappyPacMan, Je-O, juancarlovieri, MetalPower, yz_, vanwij, Zanite
- Duration: 135 minutes
- Problems: 8
- Scoring distribution: 100 — 200 — 300 — 400 — 500 — 600 — 700 — 800
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:
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!
Auto comment: topic has been updated by vanwij (previous revision, new revision, compare).
Where is the emoji spam? 🥺🥺🥺
Finally another TROC!!! :D
very cool <3
My First Contest! Very Excited to see cool problems :3
🔥 🔥 🔥
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
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 🔥🔥🔥😱😱😱😱💯💯
I did not expect everyone is using FFT in problem G. 😂
Using set (instead of multiset) in D cost me 10 submissions. (╥_╥)
I think the constraints are wrong in G.
https://tlx.toki.id/problems/troc-31/G/submissions/1315024 this solution gives TLE.
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:
We are very sorry for the major inconvenience.