Problems from Baltic Olympiad in Informatics 2018, practice session

	Add	Remove

Name	Fastest	Shortest	Total	Acc.	Ratio	Difficulty	Languages
Citations	0.02	645	537	485	90%	1.5 - 7.4Hard	en et is ja lv pl ru
Ninety-nine	0.00	6	4938	4725	96%	1.2 - 3.5Medium	en et is ja lv pl ru
Simple Arithmetic	0.00	5	4161	3830	92%	1.2 - 4.5Medium	en et is ja lv pl ru sv