Problems from Nordic Collegiate Programming Contest (NCPC) 2010

	Submissions				Users
Name	Total	Acc.	Ratio	Fastest	Total	Acc.	Ratio	Difficulty
Around the track	66	17	26%	0.01	27	14	52%	8.3
Borg Boogie	69	25	36%	0.10	30	21	70%	7.8
Connect	115	33	29%	0.00	38	25	66%	6.2
Dirty Driving	853	520	61%	0.01	458	425	93%	2.3
Doodling	131	61	47%	0.00	69	51	74%	6.9
Great Geek Game-show 3000!	50	33	66%	0.07	32	28	88%	5.3
Help a PhD candidate out!	6685	3846	58%	0.00	3708	3518	95%	1.4
Polyomino Powers	27	16	59%	0.01	15	13	87%	4.9
Skyline	317	136	43%	0.00	60	51	85%	5.1
Statisticians	175	49	28%	0.28	40	29	72%	6.9
Succession	1106	387	35%	0.00	334	283	85%	3.2