Hello CodeForces Community!

We hope you all had a great time participating in November Long Challenge. Now it’s time to buckle up again and compete in November Cook-Off. So hurry up, note down the details and be there. Joining me on the problem setting panel are:

• Problem Setter and Admin: kingofnumbers (Hasan Jaddouh)
• Problem Tester: RetiredAmrMahmoud (Amr Mahmoud)
• Problem Editorialist:likecs (Bhuvnesh Jain)
• Russian Translator: CherryTree (Sergey Kulik)
• Mandarin Translator: huzecong (Hu Zecong)
• Vietnamese Translator: VNOI Team

I hope you will enjoy solving them. Please give your feedback on the problem set in the comments below, after the contest.

Contest Details:

Time: 19th November 2017 (2130 hrs) to 20th November 2017 (0000 hrs). (Indian Standard Time — +5:30 GMT) — Check your timezone.

Contest link: https://www.codechef.com/COOK88

Registration: You just need to have a CodeChef handle to participate. For all those, who are interested and do not have a CodeChef handle, are requested to register in order to participate.

Prizes:

• Top 10 performers in Global and Indian category will get CodeChef laddus, with which the winners can claim cool CodeChef goodies. Know more here: https://www.codechef.com/laddu. (For those who have not yet got their previous winning, please send an email to winners@codechef.com)

Good Luck! Hope to see you participating!!

UPD: 90 minutes to start!