Problems from Baltic Olympiad in Informatics 2017, Day 2

Submissions Users
Name   Total Acc. Ratio Fastest Total Acc. Ratio Difficulty
Cat in a tree 136 20 15% 0.08 24 16 67% 6.2
Friends 32 6 19% 0.44 5 3 60% 5.6
Plus Minus 43 15 35% 0.05 13 13 100% 3.2