Problems from Nordic Collegiate Programming Contest (NCPC) 2015

	Submissions				Users
Name	Total	Acc.	Ratio	Fastest	Total	Acc.	Ratio	Difficulty
Adjoin the Networks	1359	359	26%	0.00	318	244	77%	5.9
Bell Ringing	462	219	47%	0.00	199	162	81%	4.8
Cryptographer's Conundrum	6891	4284	62%	0.00	3829	3701	97%	1.3
Disastrous Downtime	3163	1026	32%	0.00	850	692	81%	3.1
Entertainment Box	1098	275	25%	0.04	277	213	77%	6.3
Floppy Music	317	140	44%	0.00	139	123	88%	5.5
Goblin Garden Guards	2800	566	20%	0.05	398	273	69%	6.3
Hero Power	63	26	41%	0.03	34	22	65%	7.7
iCar	110	12	11%	0.01	32	10	31%	8.8
Just a Quiz	188	59	31%	0.05	66	48	73%	5.5