Problems from Nordic Collegiate Programming Contest (NCPC) 2015

	Submissions				Users
Name	Total	Acc.	Ratio	Fastest	Total	Acc.	Ratio	Difficulty
Adjoin the Networks	2783	703	25%	0.00	608	484	80%	5.7
Bell Ringing	660	336	51%	0.00	308	255	83%	4.5
Cryptographer's Conundrum	12806	7899	62%	0.00	7118	6867	96%	1.4
Disastrous Downtime	6666	2216	33%	0.00	1770	1494	84%	3.2
Entertainment Box	1820	487	27%	0.03	451	358	79%	5.7
Floppy Music	461	213	46%	0.00	207	182	88%	5.5
Goblin Garden Guards	3747	803	21%	0.05	553	404	73%	5.6
Hero Power	93	36	39%	0.03	47	31	66%	7.6
iCar	145	20	14%	0.01	45	17	38%	8.5
Just a Quiz	251	80	32%	0.05	94	67	71%	6.0