Problems from Nordic Collegiate Programming Contest (NCPC) 2015

	Submissions				Users
Name	Total	Acc.	Ratio	Fastest	Total	Acc.	Ratio	Difficulty
Adjoin the Networks	1828	487	27%	0.00	436	342	78%	5.6
Bell Ringing	531	266	50%	0.00	243	202	83%	4.6
Cryptographer's Conundrum	9131	5653	62%	0.00	5030	4862	97%	1.3
Disastrous Downtime	4557	1446	32%	0.00	1154	952	82%	3.3
Entertainment Box	1241	316	25%	0.04	307	242	79%	6.2
Floppy Music	341	157	46%	0.00	155	139	90%	5.5
Goblin Garden Guards	3274	651	20%	0.05	478	332	69%	6.2
Hero Power	68	29	43%	0.03	38	25	66%	7.5
iCar	136	16	12%	0.01	39	13	33%	8.8
Just a Quiz	203	66	33%	0.05	74	55	74%	5.4