Invitation to CodeChef February Lunchtime 2018!

Hello CodeChef Community!

I hope the month of February was one filled with programming escapades for you! To provide you with more coding action, here is the February Lunchtime 2018 featuring 4 interesting programming challenges!

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

  • Problem Setter: kingofnumbers (Hasan Jaddouh)
  • Problem Tester: mgch (Misha Chorniy)
  • Problem Editorialist: (Suchan Park)
  • Statement verifier: xellos0 (Jakub Safin)
  • Russian Translator: xcwgf666 (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: 24th February 2018 (1930 hrs) to 24th February 2018 (2130 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 performers in Global and Indian category will get CodeChef laddus, with which the winners can claim cool CodeChef goodies. Know more here: (For those who have not yet got their previous winning, please send an email to

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


Contest starts under 5-7 minutes.