Problems from Nordic Olympiad in Informatics 2017

	Add	Remove

Name	Fastest	Shortest	Authors	Full Solves	Ratio	Difficulty	Languages
IP over Avian Carriers	0.00	32	56	14	25%	4.3 - 8.8Hard	en
Subway	0.11	1850	66	11	17%	4.5 - 9.1Hard	en
Yule Lads	0.05	200	160	68	42%	1.9 - 7.0Hard	en