Problems from Nordic Collegiate Programming Contest (NCPC) 2015

	Submissions				Users
Name	Total	Acc.	Ratio	Fastest	Total	Acc.	Ratio	Difficulty
Adjoin the Networks	1527	417	27%	0.00	368	288	78%	5.7
Bell Ringing	503	243	48%	0.00	226	185	82%	4.7
Cryptographer's Conundrum	8127	5005	62%	0.00	4454	4302	97%	1.3
Disastrous Downtime	3841	1219	32%	0.00	1002	821	82%	3.3
Entertainment Box	1184	302	26%	0.04	292	228	78%	6.2
Floppy Music	323	144	45%	0.00	143	127	89%	5.5
Goblin Garden Guards	2973	608	20%	0.05	431	301	70%	6.1
Hero Power	63	26	41%	0.03	34	22	65%	7.7
iCar	119	12	10%	0.01	34	10	29%	9.1
Just a Quiz	188	59	31%	0.05	66	48	73%	5.5