Problems from Nordic Collegiate Programming Contest (NCPC) 2015

	Submissions				Users
Name	Total	Acc.	Ratio	Fastest	Total	Acc.	Ratio	Difficulty
Adjoin the Networks	1193	326	27%	0.00	280	214	76%	6.0
Bell Ringing	447	211	47%	0.00	191	156	82%	4.6
Cryptographer's Conundrum	5658	3569	63%	0.00	3166	3059	97%	1.3
Disastrous Downtime	1973	707	36%	0.00	603	493	82%	3.3
Entertainment Box	1004	246	25%	0.04	247	193	78%	6.4
Floppy Music	311	137	44%	0.00	136	120	88%	5.5
Goblin Garden Guards	2730	552	20%	0.05	376	259	69%	6.2
Hero Power	58	24	41%	0.03	32	21	66%	7.0
iCar	106	12	11%	0.01	31	10	32%	8.5
Just a Quiz	184	57	31%	0.05	64	46	72%	5.5