I'm, Valeriy Samojlov, graduating student of SPbSU, present you codeforces beta round 79. Today you will meet with boy Gerald and will help him to solve some living problems.
Today we have usually cost of problems in both divisions: 500 - 1000 - 1500 - 2000 - 2500.
It my first codeforces round, I hope, problems will be interesting.
I want to thank Artem Rakhov () for big help with preparation of problems, Makar Krasnoperov () for some useful remarks and Maria Belova for translation.
Good luck for participants of both dovisions!
Contest is over! Congratulation to winners!
Editoral a appeared.