Problems from Baltic Olympiad in Informatics 2017, Day 2

Submissions Users
Name   Total Acc. Ratio Fastest Total Acc. Ratio Difficulty
Cat in a tree 238 49 21% 0.05 57 35 61% 6.8
Friends 50 9 18% 0.04 9 6 67% 6.0
Plus Minus 237 78 33% 0.04 49 46 94% 2.9