Hello Codeforces Community, We are excited to invite you to participate in Winter Cup 8.0 Online Mirror Contest. The mirror is scheduled to take place on Codeforces at Mar/11/2026 15:00 (Moscow time) and will last for 5 hours.

Winter Cup is a prestigious annual competitive programming contest held by ACM, INSAT Student Chapter. It unites Tunisia's brightest minds in a thrilling display of skill and innovation. Widely regarded as the nation's best competition, aside from the official ICPC regional contest.

This year's contest consists of 14 problems with difficulties from div2A to div1D.

Problems have been created and prepared by khalil__, ramizouari, ademby, GH1hatem, get_ducked, Hitchcock25, Fankoush, lelouX and MekraziRaed.

We would like to thank:

• The organization team for preparing logistics, and the SysAdmins for configuring and testing the Judging System.
• Iceberg, Becha123, Kairm_Zaf, ElyesChaabouni, LouayDardouri-, Basbousa and amineriwa for testing the round and providing valuable advice.
• MikeMirzayanov for Codeforces and Polygon platforms.

Enjoy solving!

Here are links to Winter Cup 4, Winter Cup 5, Winter Cup 6 and Winter Cup 7 .