Problems from Baltic Olympiad in Informatics 2017, Day 2

Submissions Users
Name   Total Acc. Ratio Fastest Total Acc. Ratio Difficulty
Cat in a tree 127 18 14% 0.08 18 14 78% 4.7
Friends 32 6 19% 0.44 5 3 60% 5.5
Plus Minus 38 12 32% 0.05 10 10 100% 3.4