As-salamu alaykum, Codeforces! (Peace, Codeforces!)

I am glad to invite you to HackerEarth December DSA Contest. The contest is rated and will start on 11 December at 10:00 AM BDT. In the contest will be given 3 problems to solve in 90 minutes. All the problems are prepared by me and lucky_21, and I hope that you will like them.

I would like to thank Arpa for coordinating and testing the round.

As always, thanks to MikeMirzayanov for polygon platform.