Hello, Codeforces!

We are happy to invite you to TheForces Round #39 (1000-Forces), which will take place on Jan/23/2025 17:35 (Moscow time)

You will have 120 minutes to solve 6 problems. Two problems will be divided into subtasks.

One of the problems may be interactive. So, please refer to the guide on interactive problems if you are unfamiliar with them.

The round is TheForces rated! After the round you can find your rating changes here.

Prizes: The participant in the $$$i$$$th place will receive $$$2^{3-i}$$$ dollars $$$(1 \leq i \leq 3)$$$ as a prize. In addition, we will randomly select $$$\lfloor \frac{p}{30} \rfloor$$$ lucky participants and give each of them $$$1$$$ dollar as a prize, where $$$p$$$ is the number of participants. Please actively participate :)

For more details about TheForces prize, read the above spoiler and join TheForces!

• The problems are authored by wuhudsm, pramod_17, sanju77, Banis, Ramen, FP7317.

• We would like to thank our army of testers: Error_Yuan,Timosh, Kaleem_Raza_Syed, xksark, SpyrosAliv, Krrishchanchal, Aditya8676, Aritro_, BrAin, Shaheer.Old, vikram108, conqueror_of_timosh, heyyyankit, Sultan404, YouKnowCipher, Ramen, .

• Also we want to thank You for participating in our round.

In other exciting news:

• We've just launched our official Telegram channel! We invite you to join us there as well, so we can expand our community and conquer Telegram alongside Codeforces and Discord! 💪

Discord Server ($$$2500+$$$ members)

TheForces website

Contests' archive

UPD:

Editorial

Congrats for the winners!

1 potato167

2 Tobo

3 fractum_locum

And $$$3$$$ lucky participants:

ideservebetter

mamut-rahal

AttractorsTheory

(Pls dm wuhudsm for your prize : ) )