Check out the prizes:
If you like prizes on a picture above and still haven't qualified for the next round, or you would like to take part in an interesting competition against a lot of coders from all over the world, or you want to try yourself on a set of not very hard but still interesting and educative problems — this one is for you!
I am a tester of problemset which you'll face during a contest. There will be 5 problems with partial scoring system (you get points for every test which you passed), and you'll have 3 hours to solve them. Thanks to RomaWhite, tanujkhattar, subway, kunal93, _shil for preparing problems and to belowthebelt for providing technical help with contest preparation.
Good luck and have fun! Hope to see you in standings :)
UPD. Contest has ended! Congratulations to Anta on being fastest to solve all 5 problems, and to 24 other contestants who also managed to get full score. Best luck in next round to all those who qualified to next round, and for all those who didn't get into top1000 — you'll still have one more chance in Qualification Round 3.
Thanks to everyone for participating! Solutions and editorials are public now; feel free to discuss problems.