Hello Codeforces!!!

We are excited to invite you to IIIT Lucknow’s annual team coding event CODUO, which will be organised in two ladders, one is prelims to be held on Codechef 13th April from 9:00 pm IST and the qualified teams will be invited to participate in the finals that will take place during the period of our annual techfest Equinox. Coduo will be a 3-hour contest (individual participation or Team of 2 members). Problem set has 8 problems of varying difficulty.

This contest is a part of our annual technical fest — Equinox`21, IIIT Lucknow.

Thanks to notapig, MR_POssiBLE, lemme_sleeeep, Zankanotachi, skywalker_, ishan_sharma,_darkslayer and Retarded_Ape for contributing several important problem ideas.

Induber, Chrollo_Lucifer, agrawal117 and PointBlank for testing our problem set, and providing very valuable feedback to improve problem statements, sample cases, and tests And the Codechef team for providing their valuable platform.

PRIZES: The total prize money (for Winners of Finals) is worth INR 20,000. Also, the top 3 teams in the Prelims will get 250 Codechef laddus each. We hope that you'll enjoy the contest just as much as we did preparing it! Good luck!!!