Problems from Baltic Olympiad in Informatics 2017, Day 2

Submissions Users
Name   Total Acc. Ratio Fastest Total Acc. Ratio Difficulty
Cat in a tree 187 33 18% 0.05 45 27 60% 7.5
Friends 50 9 18% 0.04 9 6 67% 5.9
Plus Minus 189 63 33% 0.04 35 31 89% 4.4