Hello, Codeforces!

We are happy to invite you to TheForces Round #43 (DIV2-Forces), which will take place on Jul/25/2025 17:35 (Moscow time)

At the same time, we welcome you to participate in the official DIV1/DIV2 round scheduled on the 31st!

You will have 135 minutes to solve 6 problems. One of the problems is divided into two subtasks.

Note: Some problems have occurred in OCPC Fall 2024 (https://mirror.codeforces.com/blog/entry/130557 ). If you have participated in it, you should not participate in this contest.

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, ProofByContradiction_, Davy_D._Kaosar, Snowdust, frostcat.

• We would like to thank our army of testers: Ming_Xu, nikolashami, wakanda-forever, xksark, grecil, sridhanush1208, assassin__cr, TarekRahmanTR.

• 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 maspy

2 potato167

3 Rubikun

And $$$2$$$ lucky participants:

the_seal

GloryToNorka