Fox Ciel is back!
I invite you to participate in Codeforces Round #290, which will start at the standard time on next Monday:
This is my 4th round on Codeforces, my previous rounds: #190, #228, #270.
Last Div1 Round (#286) is so hard, so after notice that, we decide to reduce the difficulty of this round. (For example, current Div1-E was used as Div1-D) I hope more people can enjoy all tasks in this round: this time no task requires advanced knowledge like linear space or Fourier Transform.
The background story will be Fox Ciel's life: learning programming, play games, traveling, have dinner and so on.
Like Round #228, top-20 contestants that are currently at Petrozavodsk training camp will be rewarded with nice Codefores T-Shirts. Contestant may be a team member, jury, coach, organizer, or whoever else involved in camp, no matter of status.
As usual, thanks to Zlobober for giving great suggestions and test my round, and MikeMirzayanov for the platform (Codeforces and Polygon).
Good luck and have fun!
Update1: Score Distribution is ... Div2: Standard (500 — 1000 — 1500 — 2000 — 2500), Div1: a bit unusual ... (500 — 1000 — 1500 — 2250 — 2250)
Update2: Editorial: http://codeforces.com/blog/entry/16173
Update3: Congratulation to our winners:
Div1:
They are all people who solved 5 tasks!
Div2: