This is my 2nd round on Codeforces. (Click here to see my last round) , As usual, there will be 7 problems: 2 for Div2, 2 for Div1 and 3 for both. And same with the last round, the main character of all problem will be Fox Ciel.
Good luck and have fun!
The score distribution will be published later. And the editorial will be published right after the system test.
By the way, yesterday is the Chinese new year. So I'd like to say Happy New Year to everyone who celebrate it! And I'm very glad to be the writer of the first round in the new year.
Update1: Good news for participants of Petrozavodsk training camp. Top 20 participants of the camp by this round results will get t-shirts from Codeforces.
Update 2: The score distribution for Both Division is regular (500-1000-1500-2000-2500).
Update 3: We postpone the round 10 minutes by technical reasons (dinner on Petrozavodsk Training Camp), sorry for the inconvenience.
Update 4: We've increased the contest time by 5 minutes.
Update 5: Contest ended, thanks for your participating! I'll post the editorial soon.
Update 6: Editorial.
Sadly no one solved E correctly. Egor's solution can pass if the TL is 7 seconds instead of 6, what a pity!
They are the only people who solved all tasks!