Problems from Nordic Collegiate Programming Contest (NCPC) 2015

	Submissions				Users
Name	Total	Acc.	Ratio	Fastest	Total	Acc.	Ratio	Difficulty
Adjoin the Networks	1634	446	27%	0.00	389	307	79%	5.6
Bell Ringing	507	247	49%	0.00	230	189	82%	4.6
Cryptographer's Conundrum	8422	5194	62%	0.00	4638	4482	97%	1.3
Disastrous Downtime	4255	1353	32%	0.00	1082	891	82%	3.3
Entertainment Box	1208	307	25%	0.04	296	233	79%	6.3
Floppy Music	333	150	45%	0.00	148	132	89%	5.5
Goblin Garden Guards	3057	628	21%	0.05	452	313	69%	6.2
Hero Power	67	28	42%	0.03	37	24	65%	7.6
iCar	126	13	10%	0.01	36	11	31%	9.0
Just a Quiz	190	61	32%	0.05	68	50	74%	5.5