Invitation to CodeChef November Lunchtime 2019

Greetings CodeChef community!

We invite you to participate in the CodeChef November Lunchtime - the 3-hour contest which offers 5 challenging problems to be solved. This will be a chance for you to code and show off your programming skills along with increasing your CodeChef rating.

The problem statements of the contest will be available in English, Hindi, Bengali, Russian, Mandarin, and Vietnamese. Also if you have some original and engaging problem ideas, and you’re interested in them being used in the CodeChef’s contests, you can share them here:

I hope you will join your fellow programmers and enjoy the contest problems. Joining me on the problem setting panel are:

-Setters: mrkerim (Kerim Kochekov), kingofnumbers (Hasan Jaddouh)
-Editorialist: deadwing97 (Hussain Kara Fallah)
-Tester: kmaaszraa (Kasra Mazaheri)

  • Statement Verifier: xellos0 (Jakub Safin)
  • Mandarin Translator: stzgd (Gedi Zheng)
  • Vietnamese Translator: songuku95 (Team VNOI)
  • Russian Translator: gomelfk (Fedor Korobeinikov)
  • Bengali Translator: solaimanope (Mohammad Solaiman)
  • Hindi Translator: devils_code (Akash Srivastava)

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: 30th November 2019 (1930 hrs) to 30th November 2019 (2230 hrs). (Indian Standard Time — +5:30 GMT) — Check your timezone.

Contest link:

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.


Top 10 Indian and top 10 Global school students from ranklist will receive certificates and CodeChef laddus, with which they can claim cool CodeChef goodies. Know more here.

Good Luck!
Hope to see you participating!!
Happy Programming !!


one of the best cc contests ever in which I have taken part