Codeforces Round #259 (Div. 1 and Div. 2) will take place on August 1st, 19:30 MSK.
Tonight, you will come to Equestria and help our Friendship Princess — Twilight Sparkle to solve those intractable challenges one after another.
Twilight Sparkle is a main protagonist of the series — My Little Pony: Friendship Is Magic.
She is a female unicorn pony who transforms into an alicorn and becomes a princess in the third season of the series. She has a cutie mark of a 6-pointed magenta star with a white one behind it and 5 more smaller ones at each end of the magneta star.
Of course, I guarantee not knowing the storyline and setting won't hold you back from solving these problems~
In Div. 1, scores for each problem will be 500-1000-1500-2500-2500.
In Div. 2, scores for each problem will be 500-1000-1500-2000-2500.
Contest is over! Congratulations to the winners! Here are the top 6 in Div.1 division:
And here are the top 6 in Div.2 division:
Editorial is here.