Dear MOG users,
We are glad to announce the next rated round MOG Round #35 which will take place on the 31st of October at 9 a.m. (Cuban local time) to celebrate Halloween (in advance) ! It will have a duration of 2.5 hours for solving 5-6 problems .
UPD1: For technical reasons, we have to postpone the round to Oct. 31, 2019, 9 a.m. We are very sorry for the inconveniences this may cause.
UPD3: The contest is over. Congratulations to dmga for winning this round!
UPD4: The contest has been rated.
UPD5: These are examples of solutions for each problem:
We can discuss the solutions here if you like. The Editorial is not ready yet.