Which problems did you enjoy the most? I enjoyed problem N.Kitchen (div.2), a very interesting math problem.↵
How to solve div.2. G and O?<br>↵
P.S. I have found that upsolving of 15, 16, 17 rounds have appeared!↵
How to solve div.2. G and O?<br>↵
P.S. I have found that upsolving of 15, 16, 17 rounds have appeared!↵